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T830 Series II Base Station Equipment 136

1. Copyright TEL 30 04 98 13 4 T838 839 SII SI Conversion M830 00 Converting from rear panel RF input to front panel RF input Remove the rear panel BNC connector e unplug the RF input coax from the socket on the PCB e unscrew the BNC connector from the chassis e carefully withdraw the coax from the module through the hole in the rear of the chassis fit the blanking plate over the hole in the chassis from which the BNC connector has been removed Fit the front panel SMC connector e insert the coax fitted with the brass SMC connector through the hole in the front of the chassis and secure with the brass nut and washer connect the coax from the SMC connector into SK203 T838 or SK201 T839 as shown in Figure 3 2 Refit the side cover Fit all parts of the Series I front panel following Step 1 in reverse order Note If you have difficulty refitting the LEDs try pushing the body of the LED back into the grommet with a thin screw driver or spike Be very careful while doing this as the legs of the LED are very easy to break 30 04 98 Copyright TEL M830 00 T838 839 SII SI Conversion 13 5 dg q z L R ge i 7
2. 3dB Pad Directional M68702 Coupler Figure 2 1 1838 High Level Block Diagram Power Control Vsupply Lif Q317 HIC201 400mW 60W M68702 600mW 1W 3dB Coupler 3dB Coupler 120W TOW RF In o LPF o RFOut 1C203 1C205 i A Directional Coupler 1C202 400mW 60W M68702 Figure 2 2 T839 High Level Block Diagram The T838 839 comprise a single stage RF power amplifier with extensive control cir cuitry e in the T838 this stage consists of a single two stage RF power module which increases the drive level to approx 60W e in the T839 this stage consists of two two stage RF power modules each of which increases the drive level to approx 60W the outputs from these mod ules are then combined to provide the rated output power Figure 2 1 and Figure 2 2 show the configuration of each of the main circuit blocks on a functional level while the fold out Figure 1 1 shows their location on the PCB Copyright TEL 23 07 99 D2 4 T838 839 Circuit Operation M830 00 2 2 RF Circuitry Refer to the RF amp thermistor control sections circuit diagram in Section 5 The T838 consists of a single RF power module IC201 which delivers 60 70W The input signal is fed directly into the module and the output from the module is passed to the antenna socket
3. C5 10 T836 837 Fault Finding M830 00 5 7 1 3 CTCSS Encode Use PGM800Win to select a channel Cannatselecta channel Check serial communications with a CTCSS tone See separate flow chart programmed Y y No square waves or Check IC810 psc 29 uneven mark space ratio 8 26 microcontroller Replace IC810 Are there 5V square waves at p the CTCSS frequency Y No square waves or Check IC830 pins 1 7 8 14 uneven mark space ratio o Are there 9V square waves at a pee the CTCSS frequency i Y Check IC830 pin 8 Is there a sine wave Check RV805 atthe CTCSS frequency Distorted tone Check the filter circuit for bias problems and or short circuits 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 11 5 7 2 Regulator Check for overheating components 8 short circuits Y 13 8V present on N Check continuitv IC630 pin 3 NA from pin 9 of D range 1 Y 5 3V present on de 10650 pin 12 Replace IC630 Y 9 0V present N Check Q630 on TP602 Q620 amp IC640 Y N Check Q660 is switching at approx 150k Hz 20V present on TP603 Y 5V present on ds gt Check R615 2 IC610 pin 27 Replace IC610 Y Key Tx A A Y 8 8V present on Tx reg TP305 Regulators OK IU OV present Y on Q860 collector Replace Q610 N 0 6V present on Check Q860 and
4. C201 020 08100 04 CAP ELE RA 10M 16V 4X7MM 8C333 25 015 22390 0 CAP CER 0805 39P 5 NPO 50V amp C203 10 015 25100 08 CAP CER 0805 10N 10 X7R 50V 8C335 10 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C203 13 015 25100 08 CAP CER 0805 10N 10 X7R 50V 8C335 13 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C203 15 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 8C335 15 015 22820 0 CAP CER 0805 82P 5 NPO 50V amp C203 20 015 25100 08 CAP CER 0805 10N 10 X7R 50V 8C335 20 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C203 23 015 25100 08 CAP CER 0805 10N 10 X7R 50V 8C335 23 015 25100 08 CAP CER 0805 10N 10 X7R 50V 8C203 25 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 8C335 25 015 22820 0 CAP CER 0805 82P 5 NPO 50V C205 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 8C337 10 015 20050 0 CAP CER 0805 0P5 1 4P NPO 50V C207 020 07100 02 CAP ELE RA 1M 50V 5X11MM 80337 13 015 20050 0 CAP CER 0805 0P5 1 4P NPO 50V C209 020 08470 02 CAP ELE RA 47M 16V 6X11MM 80337 15 015 21180 0 CAP CER 0805 1P8 1 4P NPO 50V C210 015 24100 08 CAP CER 0805 1N 10 X7R 50V 80337 20 015 20050 0 CAP CER 0805 0P5 1 4P NPO 50V C211 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 8C337 23 015 20050 0 CAP CER 0805 0P5 1 4P NPO 50V C213 015 25470 08 CAP CER 0805 47N 10 X7R 50V 80337 25 015 21180 0 CAP CER 0805 1P8 1 4P NPO 50V C215 015 21220 01 CAP CER 0805 2P2 1 4P NPO 50V C339 015 25100 08 CAP CER 0805 10N 10 X7R 50V C217 015 22470 01 CAP
5. M830 00 T837 PCB Information C6 3 29 Ref Var IPN Description Ref Var IPN Description C782 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q310 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C784 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q315 000 00012 15 S XSTR BD234 PNP AF PWR T0126 C786 015 06100 08 CAP CER 1206 100N 10 X7R 50V Q320 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C788 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q325 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C790 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q330 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C792 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q335 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C810 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q340 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C812 015 23100 01 CAP CER 0805 100P 5 NPO 50V Q345 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C813 015 24100 08 CAP CER 0805 1N 10 X7R 50V Q365 000 00031 96 S XSTR 3866 NPN T092 SWITCH C822 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM Q370 000 00022 30 S XSTR 2N4427 NPN T039 VHF DR C823 015 25220 08 CAP CER 0805 22N 10 X7R 50V Q510 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C824 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q520 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C826 015 23220 01 CAP CER 0805 220P 5 NPO 50V Q530 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C827 015 22330 01 CAP CER 0805 33P 5 NPO 50V Q540 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C828 015 25100 08 CAP CER 08
6. 13 8V Nom From Rear o D Range 1 DC Amp FETA Crowbar 5V Switching 5V Dig uP Diode A Reg i PS Reg LVI FO Reset y l V l 13 8V 5V 9V 20V 5V Dig Nom Figure 2 4 T835 Power Supply And Regulators Block Diagram The T835 is designed to operate off a 10 8 16V DC supply 13 8V nominal A 5 3V regu lator 1C630 runs directly from the 13 8V rail driving much of the synthesiser circuitry It is also used as the reference for a DC amplifier IC640 Q630 amp Q620 which provides a medium current capability 9V supply A switching power supply based on Q670 and Q660 runs off the 9V supply and pro vides a low current capability 20V supply This is used to drive the synthesiser loop filter IC740 giving a VCO control voltage of up to 20V The 13 8V supply drives both output audio amplifiers without additional regulation A separate 5V regulator IC610 drives the microprocessor and associated digital circuitry The output of this regulator is monitored by the Low Voltage Interrupt LVI circuit IC650 A crowbar diode is fitted for protection against connection to a power supply of incor rect polarity It also provides transient overvoltage protection Note A fuse must be fitted in the power supply line for the diode to provide effec tive protection 23 07 99 Copyright TEL M830 00 T835 Circuit Operation B2 9 2 9 Microcontroller Refer to the microcontroller circuit diagram sheet 8 i
7. Bi IC201 I N JE 4 ai pl IC201 IC202 E ZCH i l SS 7610 s ssj y Tei ji ie DE Azot BN i L 2207 na T838 T839 Rear RF input coax mm Front RF input coax Figure 3 2 1838 839 RF Input Coax Routing Copyright TEL 30 04 98 13 6 T838 839 SII SI Conversion M830 00 30 04 98 Copyright TEL
8. 5V Digital Watchdog Regulator Reset 5V Reset Microcontroller Cavitv Channel Select Port LE id Dual Digital gt Auxiliary Potentiometer Output Pot Eo cascos horaria External i Serial Port i CTCSS l 1 l l l i l gt Microcontroller Clock l l 1 l l U CTCSS Tone lt Encoder EEPROM Synthesiser Figure 2 3 T836 837 Microcontroller Block Diagram Overall system control of the T836 837 is accomplished by the use of a member of the 80C51 family of microcontrollers IC810 It runs from internal ROM and RAM thus leaving all four ports free for input output functions Non volatile data storage is achieved by serial communication with a 16kBit EEPROM IC820 This serial bus is also used by the microcontroller to program the synthesiser IC740 and deviation control EPOTS IC220 The main tasks of the microcontroller are as follows e program the synthesiser and EPOT e interface with the PGM800Win programming software at 9600 baud via the serial communication lines on D range 1 PL100 amp D range 2 e monitor channel change inputs from D range 2 e generate timing waveforms for CTCSS encoding e coordinate and implement timing control of the exciter transmitter e control the front panel Supply LED refer to Section 5 3 23 07 99 Copyright TEL M830 00 T836 837 Circuit Operation C2 5
9. 1 2 2 General Number Of Channels 128 standard Supply Voltage Operating Voltage 10 8 to 16V DC Standard Test Voltage 13 8V DC Polarity negative earth only Polarity Protection crowbar diode Line Keying Supply if required 50V DC Supply Current Transmit T836 45A typical 1837 600mA Standby 150mA typical Operating Temperature Range 30 C to 60 C 1 Additional channels may be factory programmed Contact your nearest Tait Dealer or Customer Service Organisation 23 07 99 Copyright TEL M830 00 T836 837 General Information C1 9 Dimensions Height 183mm Width 60mm Length 320mm Weight 21kg Time Out Timer optional Tail Timer Transmit Key Time Transmit Lockout Timer 1 23 RF Section Frequency Range Modulation Type Frequency Increment Switching Range Load Impedance Frequency Stability see also Section 1 4 and Section 1 5 Adjacent Channel Power full deviation Wide Bandwidth WB 25kHz 15kHz B W Mid Bandwidth MB 20kHz 12kHz B W Narrow Bandwidth NB 12 5kHz 7 5kHz B W Transmitter Side Band Noise no modulation 15kHz bandwidth At 25kHz At 1MHz 0 to 5 minutes adjustable in 10 sec ond steps 0to5 seconds adjustable in 100ms steps lt 30ms Oto 1 minute adjustable in 10 second steps 136 174MHz refer to Section 1 4 and Section 1 5 EM 5 or 6 25kHz 8MHz i e 4MHz from the cent
10. 2 3 Synthesised Local Oscillator Refer to the synthesiser circuit diagram sheet 7 in Section 6 2 or 6 3 and the VCO cir cuit diagram in Part E 22dBm L O FREQUENCY SYNTHESISER IC VCO VCO PCB 12 8MHz fiss RR A ete ita Modulation A ka Reference Fixed Reference Phase Charge Loop i Output Oscillator Divider Divider Detector Pump Filter VCO Buffer Buffer gt zamka M R gt gt RZ gt y A gt o fret i CERES Ref Phase i Mod Modulator a Prescaler N 64 65 je ok 7 de Divider Buff Ivider butter Serial Data i Us En Gontroller Figure 2 4 T836 837 Synthesiser Block Diagram The synthesiser IC740 emplovs a phase locked loop PLL to lock a voltage controlled oscillator VCO to a given reference frequency The synthesiser receives the divider information from the control microprocessor via a 3 wire serial bus clock data enable When the data has been latched in the synthesiser processes the incoming signals from the VCO buffer fin and the phase modulator fref A reference oscillator at 12 8MHz IC700 is buffered IC710 pins 3 amp 4 and divided down to 200kHz IC730 This 200kHz square wave is then summed with the modulat ing audio and passed to an integrator IC720 pins 9 amp 8 Q710 Q720 This produces a ramping waveform which is centred around a DC level dete
11. Grid Reference Index This section contains a component grid reference index to help you find components and labelled pads on the PCB layouts and circuit diagrams This index lists the components and pads in alpha numeric order along with the appropriate alphanumeric grid references as shown below PCB layout components listed reference in alphanumeric order circuit diagram reference Device PCB Circuit C126 2 A6 2 R7 C127 1 A8 2 P4 C128 2 B7 2 P2 0129 26122 ES 80130 2 08 2 B8 C131 2 09 2 H6 C132 2 D8 2 B8 C133 2 D6 E component location on the sheet sheet number component location on the layer layer number 1 top side layer 2 bottom side layer Copyright TEL 30 04 98 B6 1 6 T835 PCB Information M830 00 Using CAD Circuit Diagrams Reading a CAD circuit diagram is similar to reading a road map in that both have an alphanumeric border The circuit diagrams in this manual use letters to represent the horizontal axis and num bers for the vertical axis These circuit diagram grid references are useful in following a circuit that is spread over two or more sheets When a line representing part of the circuitry is discontinued a reference will be given at the end of the line to indicate where the rest of the circuitry is located as shown below The first digit refers to the sheet number and the last two characters refer to the location on that sheet of the continuation of the circuit e g
12. Set RV115 to 120W driver power clamp Set RV109 to required output power Refer to Section 3 3 D range pin 12 low Y Y Is 1C201 IC202 pin 2 gt 10V Is 1C201 IC202 pin 3 gt 13V Y Y Is the drive from the N connect to exciter key line Replace Q135 amp Q137 t then check 1C201 IC202_ gt pin 2 for short circuit Set drive to exciter 600mW 1W i when PA keyed 600mW 1W Is R223 hot to touch Y Check components in LPF Is the output from 1C201 and HIC202 gt 60W per module measured concurrently Refer to Figure 4 1 l Check the condition of splitter hybrid 1C203 Are there any shorts on the legs or broken legs Check the condition of combiner hybrid IC205 Are there any shorts on the legs or broken legs l Is maximum power gt 100W over entire frequency range l Return PA to vour local Tait service centre HH Check output N type connector for short circuit or excessive wear Replace parts as necessary Check 1C201 1C202 solder joints If joints OK replace module s I Replace splitter hvbrid m gt Replace combiner hybrid Frequency Ranges T839 10 136 156MHz
13. E2 4 T830 VCO PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description R13 036 12220 00 RES M F 0805 22E 5 Variant Description T836 837 R14 036 12560 00 RES M F 0805 56E 5 Code MHz R15 036 12220 00 RES M F 0805 22E 5 R16 036 13270 00 RES M F 0805 270E 5 7 R17 036 13270 00 RES M F 0805 270E 5 A Tx high 148 174 R18 036 12180 00 RES M F 0805 18E 5 R19 036 14100 00 RES M F 0805 1K 5 B Tx low 136 156 R20 036 14680 00 RES M F 0805 6K8 5 R21 036 14100 00 RES M F 0805 1K 5 R22 036 14220 00 RES M F 0805 2K2 5 c Rx high 169 4 195 4 R23 036 12180 00 RES M F 0805 18E 5 R24 036 12220 00 RES M F 0805 22E 5 D Rx low 157 4 177 4 R25 036 13220 00 RES M F 0805 220E 5 cz 015 23680 08 CAP CER 0805 680P 10 X7R 50V C3 A 015 22180 01 CAP CER 0805 18P 5 NPO 50V C3 B 015 22180 01 CAP CER 0805 18P 5 NPO 50V C3 e 015 22100 01 CAP CER 0805 10P 1 2P NPO 50V C3 D 015 22100 01 CAP CER 0805 10P 1 2P NPO 50V CA A 015 22220 01 CAP CER 0805 22P 5 NPO 50V CA B 015 22220 01 CAP CER 0805 22P 5 NPO 50V CA Cc 015 22180 01 CAP CER 0805 18P 5 NPO 50V C4 D 015 22150 01 CAP CER 0805 15P 5 NPO 50V C5 A 015 22220 01 CAP CER 0805 22P 5 NPO 50V C5 B 015 22220 01 CAP CER 0805 22P 5 NPO 50V C5 Cc 015 22220 01 CAP CER 0805 22P 5 NPO 50V C5 D 015 22180 01 CAP CER 0805 18P 5 NPO 50V C6 A 015 22220 01 CAP CER 0805 22P 5 NPO 50V C6 B 015 22180 01 CAP CER 0805 18P 5 NPO 50V C6 e 015
14. r Refer to audio fault finding chart Note c w clockwise cc w counterclockwise or anticlockwise Y Y Audio on H ll receiver fault Modulated by 1kHz signal with 3kHz 2 4kHz 1 5kHz deviation Refer to finding chart Noise on N Check components IC390 pin 7 around active filter Y Y Amplified noise L N Check Q340 on C395 amp Q350 Y y Approx 0 6V DC rect Check D310 is ified noise on pad 236 rectifying noise Y Y Vary RF level 8 observe voltage on pad 236 Y Pad 236 voltage varies 0 1 8V Y Y Adjust RV230 gating sensitivity 8 observe voltage on 1C270 pin 3 Y Voltage varies Check RV330 adjustment noise mute gain Check 9V rail amp 0 2 5V y Set RF signal level to 117dBm Rotate RV230 c w 8 cc w Monitor voltage on N IC270 pin 1 Switching gt Replace IC270 0 8V as RV230 rotated I Monitor voltage on N IC270 pin 7 Switching f ar 0 8V as RV230 rotated i Monitor voltage on N pad 234 Switching m Replace Q250 0 8V as RV230 rotated E Does Gate resistors R264 R265 amp R284 Check replace IC270 amp D240 Chec
15. 23 07 99 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3 7 3 4 6 CTCSS 3 4 6 1 Decoder Operation Program a CTCSS tone on the set channel using PGM800Win Set the RF signal generator output to 70dBm Modulate the generator with both e a1kHz tone at 3kHz deviation 2 4kHz 1 5kHz e anda CTCSS tone at the programmed frequency at 500Hz deviation 400Hz 300Hz Check that the receiver gate opens and the front panel Gate LED is on 3 4 6 2 Opening Sinad Adjust RV230 front panel gating sensitivity fully clockwise Reduce the RF signal level to 110dBm Observe the sinad meter and reduce the RF level until the receiver mute closes Slowly increase the signal level until the receiver mute just opens and stays open With PL240 pins 1 amp 2 linked high pass filter bypassed check that the sinad is less than 6dB Reset the signal generator for the required opening sinad adjust RV230 fully anti clockwise then clockwise until the mute just opens 3 4 6 3 High Pass Filter Set the audio processor links as follows Function de emphasised response audio from internal CTCSS speech filter audio input via PL230 or I O pad Reset the RF signal generator output to 70dBm and note the line level measure ment A Reduce the 1kHz generator to zero output and measure the line level again meas urement B Check that measurement B is at least 30dB below measurement A Co
16. 30 04 98 Copyright TEL M830 00 Introduction E1 3 Grid Reference Index This section contains a component grid reference index to help vou find components and labelled pads on the PCB layouts and circuit diagrams This index lists the components and pads in alpha numeric order along with the appropriate alphanumeric grid references as shown below components listed in alphanumeric order Device PCB C126 2 A6 C127 1 A8 C128 2 B7 C129 2 012 20130 2 D8 C131 2 09 C132 2 D8 C133 2 D6 PCB layout reference circuit diagram reference Circuit 2 R7 2 P4 2 P2 2 E3 2 B8 2 H6 2 B8 2A component location on the sheet sheet number component location on the layer layer number 1 top side layer 2 bottom side layer Copyright TEL 30 04 98 E1 4 Introduction M830 00 30 04 98 Copyright TEL M830 00 T830 VCO PCB Information E2 1 2 1830 VCO PCB This section contains the following information 220 01176 03 Section Parts List Mechanical amp Miscellaneous Parts Grid Reference Index PCB Layout Bottom Side PCB Layout Top Side Circuit Diagram Copyright TEL 30 04 98 E2 2 T830 VCO PCB Information M830 00 30 04 98 Copyright TEL IPN 220 01176 03 M830 00 T830 VCO PCB Information E2 3 T830 VCO Parts List IPN 220 01176 03 How To Use This Parts List The components listed in this parts list are divided into two main types
17. Section 220 011390 02 Parts List Mechanical amp Miscellaneous Parts Mechanical Assembly Grid Reference Index PCB Layout Top Side PCB Layout Bottom Side Test Points amp Options Connections Top amp Bottom Side Exciter Overview Diagram Audio Processor Circuit Diagram Exciter Circuit Diagram VCO Section Circuit Diagram Regulators Circuit Diagram Synthesiser Circuit Diagram Microcontroller Circuit Diagram Harmonic Filter Circuit Diagram Copyright TEL 30 04 98 C6 3 2 T837 PCB Information M830 00 30 04 98 Copyright TEL M830 00 IPN 220 01390 02 T837 PCB Information C6 3 3 1837 Parts List IPN 220 01390 02 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The miscellaneous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend colum
18. Set RV109 power control to the required output power Earth pin 9 of IC101 the via at NTC R237 is convenient Adjust RV113 shutdown power level for an output power of T838 16W T839 40W Remove the earth from pin 9 of IC101 or the pad of R237 To check the operation of the RF power module thermistor s place shorting links across pins 1 amp 2 and 2 amp 3 of LINK201 Check that the output power drops to T838 16W T839 40W Remove the shorting links from LINK201 Copyright TEL 30 04 98 D3 6 T838 839 Initial Adjustment M830 00 3 6 3 7 3 8 Note 3 8 1 Note 3 8 2 Remote Forward Power Meter Calibration If a remote meter is connected adjust the forward power meter calibration control RV103 for the remote reading to agree with the RF power meter reading Remote Reverse Power Meter Calibration If a remote meter is connected connect a 50 ohm 3dB pad with the output open circuit to the PA output Apply RF drive and Tx key Adjust the reverse power meter calibration control RV107 for a quarter of the for ward power reading Setting Alarm Levels If forward and reverse power metering is being used set up their calibration Section 3 6 and Section 3 7 before setting the alarm levels Forward Power Power up the T838 839 and adjust the front panel power control RV109 so that the output power is at the alarm level required e g 80W if the T839 normally operat
19. The T800 01 0010 also has a built in speaker a switch for selecting Series I or II modules and uses standard BNC and banana plug sockets Refer to the T800 Ancillary Equipment Service Manual for more information T800 03 Auxiliary D Range The T800 03 is an additional D range kit comprising one D range plug assembly and two locating pins nuts amp washers Although originally a T800 Series I ancillary it can be used in T800 Series II products for special applications requiring custom internal wir ing T800 03 0000 Auxiliary D Range The T800 03 0000 is an additional D range kit normally fitted as D range 2 comprising one D range plug assembly complete with connecting loom and mounting screws The ribbon cable loom connects the D range PCB to the Micromatch socket SK805 in the microcontroller compartment Typical uses of the T800 03 0000 are in paging applica tions and where external channel control is required Refer to Figure 1 4 and Figure 2 4 in Part F for the T800 03 0000 pin connections 30 04 98 Copyright TEL M830 00 T800 Ancillary Equipment H3 T800 04 0000 RSSI The T800 04 RSSI option PCB plugs directly into the main PCB support circuitry being fitted as standard It is fitted to the T855 T875 and T885 whenever receiver signal strength monitoring is required e g trunking or voting Its function is to provide a DC voltage proportional to the signal level at the receiver input Refer to the appropria
20. 5 18 30 04 98 1 7 23 07 99 5 19 23 07 99 1 8 23 07 99 5 20 30 04 98 blank 1 9 23 07 99 1 10 23 07 99 6 1 1 23 07 99 1 11 23 07 99 6 1 2 30 04 98 blank 1 12 30 04 98 6 1 3 30 04 98 1 13 23 07 99 6 1 4 30 04 98 1 14 23 07 99 6 1 5 30 04 98 1 15 23 07 99 6 1 6 30 04 98 1 16 30 04 98 blank 6 2 1 30 04 98 2 1 30 04 98 6 2 2 30 04 98 blank 2 2 30 04 98 6 2 3 23 07 99 2 3 30 04 98 6 2 4 30 04 98 2 4 23 07 99 6 2 5 30 04 98 2 5 30 04 98 6 2 6 30 04 98 2 6 23 07 99 6 2 7 30 04 98 2 7 30 04 98 6 2 8 30 04 98 2 8 23 07 99 6 2 9 30 04 98 fold out 2 9 23 07 99 6 2 10 30 04 98 fold out blank 2 10 23 07 99 6 2 11 30 04 98 2 11 23 07 99 6 2 12 30 04 98 2 12 30 04 98 6 2 13 30 04 98 2 13 30 04 98 6 2 14 30 04 98 blank 2 14 30 04 98 blank 6 2 15 30 04 98 fold out 6 2 16 30 04 98 fold out 33 23 07 99 6 2 17 30 04 98 fold out 3 2 23 07 99 6 2 18 30 04 98 fold out 33 23 07 99 6 2 19 _ 30 04 98 fold out 3 4 23 07 99 6 2 20 30 04 98 fold out 3 5 30 04 98 6 2 21 30 04 98 fold out 3 6 23 07 99 6 2 22 30 04 98 fold out 3 7 23 07 99 6 2 23 30 04 98 fold out 3 8 30 04 98 6 2 24 30 04 98 fold out 3 9 23 07 99 Copyright TEL 23 07 99 M830 00 Page 3 10 3 11 3 12 3 13 3 14 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 5 16 5 17 5 18 5 19 5 20 6 1 1 6 1 2 6 1 3 6 1 4 6 1 5 6 1 6 6 2 1 6 2 2 6 2
21. 600 ohms 70dBm 50dBm 23 07 99 Copyright TEL M830 00 T836 837 General Information C1 11 1 2 4 2 Modulation Characteristics Frequencv Response below limiting Line And Microphone Inputs Pre emphasised Response Bandwidth Below Limiting Flat Response Above Limiting Response Distortion Hum And Noise Wide Bandwidth Mid Bandwidth Narrow Bandwidth Compressor optional Attack Time Decav Time Range 1 2 4 3 CTCSS Standard Tones Frequency Error from EIA tones Generated Tone Distortion Generated Tone Flatness Modulation Level Modulated Distortion 1 2 5 Microcontroller Auxiliarv Ports Open Drain Tvpe Vqs max flator pre emphasised optional 300Hz to 3kHz WB amp MB 300Hz to 2 55kHz NB within 1 3dB of a 6dB octave pre emphasis characteristic within 1 2dB of output at 1kHz within 1 2dB of a flat response ref IkHz 2 55dB 300Hz to 3kHz EIA typical 54dB CEPT 50dB CEPT 10ms 800ms 50dB all 37 EIA group A B and C tones plus 13 commonly used tones 0 08 max 1 2 max flat across 67 to 250 3Hz to within 1dB adjustable lt 5 capable of sinking 2 25mA via 2k2Q 5V Copyright TEL 23 07 99 C1 12 T836 837 General Information M830 00 1 2 6 Test Standards Where applicable this equipment is tested in accordance with the following standards 1 2 6 1 Eu
22. Note This procedure applies to the latest design T838 839 PAs which use RF power modules and are identified by the Series II style product code T83X X0 0000 It should take approximately 15 20 minutes per module to perform these steps Copyright TEL 23 07 99 13 2 T838 839 SII SI Conversion M830 00 3 2 Method Remove the Series II front panel from the PA as follows e remove the four screws using a Torx screwdriver e push the LEDs from the front of the panel to remove them from their grommets Remove the side cover Follow the step for whichever module you are going to modify e T838 go to Step 4 e T839 go to Step 5 These modifications will disable the cyclic keying T838 Remove L201 330nH SMD inductor as shown in Figure 3 1 Caution Do not use excessive heat to remove the inductor or it will melt Place R120 02 SMD resistor as shown in Figure 3 1 T839 Remove L211 330nH SMD inductor as shown in Figure 3 1 Caution Do not use excessive heat to remove the inductor or it will melt Place R120 02 SMD resistor as shown in Figure 3 1 30 04 98 Copyright TEL M830 00 T838 839 SII SI Conversion 13 3 T838 remove L201 T838 8 T839 place R120 7 77 d SZEW l OP ppp a l T839 remove L211 jid Figure 3 1 T838 839 Component Changes
23. R210 036 14470 10 RES M F 0805 CHIP 4K7 1 R101 036 14100 00 RES M F 0805 1K 5 R211 036 15560 10 RES MF 0805 CHIP 56K 1 R102 036 16220 00 RES M F 0805 220K 5 R212 036 15100 00 RES M F 0805 10K 5 R103 036 15330 00 RES M F 0805 33K 5 R213 036 14390 00 RES M F 0805 3K9 5 R104 036 16470 00 RES M F 0805 470K 5 R214 036 14470 00 RES M F 0805 4K7 5 R105 036 15150 00 RES M F 0805 15K 5 R215 available as sub assembly only refer to R106 036 15150 00 RES M F 0805 15K 5 045 061 00 05 in the mechanical parts list R107 036 14390 00 RES M F 0805 3K9 5 R216 036 03100 02 RES 100E 1206 200V 250MW RCO1 R108 036 14330 00 RES M F 0805 3K3 5 R217 036 03100 02 RES 100E 1206 200V 250MW RCO1 R109 036 15100 00 RES M F 0805 10K 5 R218 036 13390 10 RES MF 0805 CHIP 390E 1 R111 036 14820 00 RES M F 0805 8K2 5 R219 available as sub assembly only refer to R112 036 14680 00 RES M F 0805 6K8 5 045 06100 05 in the mechanical parts list R113 036 14100 00 RES M F 0805 1K 5 R220 036 15470 10 RES M F 0805 47K 1 R114 036 16100 00 RES M F 0805 100K 5 R222 036 15470 10 RES M F 0805 47K 1 R115 036 16220 00 RES M F 0805 220K 5 R223 039 05050 00 RES TO22050E 50W MP850 R116 045 04470 00 RES NTC SMD 4K7 5 20MW R224 036 14150 10 RES MF 0805 CHIP 1K5 1 R117 036 16220 00 RES M F 0805 220K 5 R225 030 03120 00 RES FILM 120E 5 0 25W 7X2 5 R118 036 15270 00 RES M F 0805 27K 5 R228 036 14470 10 RES M F 0805 CHIP 4K7 1 R119 036 16470 00 RES M F 0805 470K 5
24. i IND SMD 330NH QAL 01972368009 EOAR CER 0805 6905 107 f 50V L236 051 00640 01 LNK 65 5 COP STPL C W SLCN SLV C174 015 23680 08 CAP CER 0805 680P 10 X7R 50V ieee pecado IND SMD SON C176 015 06100 08 CAP CER 1206 100N 10 X7R 50V TIN A CIE 015 25100 08 GACER OBOSH N 10 XFA 50y L243 052 08340 20 COIL A W 2T 4 0MM SMD 0 8MM C179 015 06150 08 CAP CER1206150N10 X7R25VW 25V 134 GE 08348105 COIE AW ITEE SMD 0 SMM C180 015 23680 08 CAP CER 0805 680P 10 X7R 50V ae AJ COIL ROT AMM MLOSNU iet 019 23 ERA CAE CER CA CZA EC L248 052 08345 10 COIL A W 1T 4 5MM SMD 0 8MM C182 pia caer ae sone CER 08054N7 10 Xy A SOV L249 052 08360 20 COIL A W 2T 6 0MM SMD 0 8MM C184 015 25100 08 CAP CER 0805 10N 10 X7R 50V ea 01033002 100 IND SND SOON C185 015 23680 08 CAP CER 0805 680P 10 X7R 50V C186 015 23680 08 CAP CER 0805 680P 10 X7R 50V RA C187 015 06100 08 CAP CER 1206 100N 10 X7R 50V A DO AA OWE GO SERA A C188 014 08100 00 CAP TANT CHIP 10M 16VW 20 ini Batson WERDER SN TA PCA NTG C189 015 25100 08 CAP CER 0805 10N 10 X7R 50V C190 015 23680 08 CAP CER 0805 680P 10 X7R 50V Rra aos EE 1 bil toe ome cad PL101 240 00010 55 PLUG 15W D RANGE W W PNL MT iGO GE WA W RAA Q101 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS on aa E O N ee Q103 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 a os CAB ERGO dec bad Q105 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 ae Deets ta GAR ER OD HON ese 06 Q107 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS on o C
25. tions of one T800 receiver and transmitter The meter and selector switches for monitor ing the required functions are mounted on the front panel as is the monitor speaker which is driven by a built in amplifier An optional mute circuit may be used to silence the audio when no carrier is present Refer to M318 02 30 04 98 Copyright TEL M830 00 T800 Ancillary Equipment H5 Paging T800 30 0000 8 T800 30 0002 DFSK Modulators The T800 30 0000 formerly T800 30 and T800 30 0002 formerly T800 35 are DESK modulators for T800 Series II transmitters suitable for POCSAG or similar paging data formats Analogue transmissions e g tone or speech are still possible by disabling the data path via a control line 512 or 1200 baud data rates are link selectable The T800 30 0002 is adapted for use with an external reference oscillator for simulcast trans mission The T800 30 0000 and T800 30 0002 are not designed for use with 66 to 88MHz equipment Refer to the T800 Ancillary Equipment Service Manual for more information T800 32 0000 8 T800 32 0010 DFSK Modulators The T800 32 0000 and T800 32 0010 are DFSK modulator PCBs which can be fitted to T800 Series II transmitters to enable them to function as low speed paging transmitters These new PCBs have been specifically designed for Series II transmitters and will be much easier to fit into the latest design transmitters Both PCBs are suitable for POCSAG or similar paging data form
26. 1 3 Product Codes The three groups of digits in the T830 Series II product code provide information about the model tvpe and options fitted according to the conventions described below The following explanation of T830 Series II product codes is not intended to suggest that any combination of features is necessarily available in any one product Consult your nearest Tait Dealer or Customer Service Organisation for more information regarding the availability of specific models types and options Model The Model group indicates the basic function of the product as follows T83X XX XXXX T835 receiver T836 25W transmitter T837 exciter T838 50W power amplifier T839 100W power amplifier Type The Type group uses two digits to indicate the basic RF configuration of the product The first digit in the Type group designates the frequency range T83X XX XXXX 1 for 136 156MHz 2 for 148 174MHz The second digit in the Tvpe group indicates the channel spacing T83X XX XXXX O for wide bandwidth 25kHz 3 for mid bandwidth 20kHz 5 for narrow bandwidth 12 5kHz Options T83X XX XXXX The Options group uses four digits and or letters to indicate any options that may be fitted to the product This includes standard options and special options for specific customers 0000 indicates a standard Tait product with no options fitted The large number of options precludes listing them here Copyright TEL 23 07 99 C1 14 T8
27. 1R3 these grid references show where the circuit is continued 30 04 98 Coppright TEL M830 00 T835 PCB Information B6 2 1 6 2 T835 Receiver PCB This section contains the following information Section 220 011394 02 Parts List Mechanical amp Miscellaneous Parts Mechanical Assembly Grid Reference Index PCB Layout Top Side PCB Layout Bottom Side Test Points amp Options Connections Top Side Test Points amp Options Connections Bottom Side Receiver Overview Diagram Audio Processor Circuit Diagram IF Section Circuit Diagram Front End Circuit Diagram VCO Section Circuit Diagram Regulators Circuit Diagram Synthesiser Circuit Diagram Microcontroller Circuit Diagram Harmonic Filter Circuit Diagram Copyright TEL 30 04 98 B6 2 2 T835 PCB Information M830 00 30 04 98 Copyright TEL M830 00 IPN 220 01394 02 T835 PCB Information B6 2 3 1835 Parts List IPN 220 01394 02 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is
28. 4 1 PGM800Win V1 0 PGM800Win V1 0 is different in concept from DOS versions of PGM800 in that it is Win dowsl based It also includes many new and improved features over DOS versions of PGM800 The major changes are outlined below The Windows environment makes data entry and editing significantly easier PGM800Win includes several new radio models which are not programmable with DOS versions of PGM800 Out of range frequencies will result in warning messages and will not be accepted for entry into the standard library module User defined modules can be created however allowing variation from the standard library module Channel numbers default to 0 127 to match the EPROM memory locations How ever the user can change this setting so that the channel numbers run from 1 128 to suit his her particular needs Note The data files produced by BASEPROG V1 0 and all DOS versions of PGM800 are still compatible with PGM800Win V1 0 4 2 PGM800Win V2 00 PGM800Win V2 00 is an upgraded and expanded version of PGM800Win V1 0 It has been developed specifically for T800 Series II base stations but retains the ability to pro gram Series I equipment The major changes are outlined below PGM800Win V2 0 will program T800 Series II base station modules via serial com munications Deviation and reference modulation settings are written automatically to the radio 1 Windows is a registered trademark of the Microso
29. C5 C3 CA CV1 8 D1 D4 in VCO Continued on the next page 23 07 99 Copyright TEL M830 00 T836 837 Fault Finding C5 13 B Continued from previous page Check phase detector output pins IC740 pins 3 amp 4 Are there verv narrow pulses 50ns at the reference frequency i e 5kHz 200us period 6 25kHz 160us period See Note below gt gt Y Is the charge pump bias voltage at the base of Q760 8 Q780 between 3 5 and 5V 5V when locked o Y Y Is the voltage on C762 R760 and R758 9V 0 2V Y y Check R762 amp C762 Is the charge pump voltage on Q790 gate between 3 and 8 5V 6 5V 0 2V locked Check programming Check serial bus when programming i e clock data enable activity IC740 pins 18 19 amp 17 Check Q760 Q780 R766 amp C765 Check microcontroller section 10810 Check charge pump components Q775 8 Q780 and Q790 Y Y Is the loop filter reference voltage at C772 6 5V 0 2V gt Y Y Check loop filter components R775 C774 C776 R510 C505 IC750 Is the supply to IC750 20V 4 2V Check regulator circuitry Y Check the signal path from the VCO to synthesiser Measure the frequency from the VCO at IC740 pin 11 using a frequencv cou
30. Check replace IC280 8 adjoining components Check 9V rail 8 resistors R275 R277 8 RV235 Monitor voltage on 1C280 pin 7 Switching 0 8V as RV235 rotated N t Replace IC280 E Monitor voltage on IC270 pin 7 Switching 0 8V as RV235 rotated N p Check replace IC270 8 D240 E Monitor voltage on pad 234 Switching 0 8V as RV235 rotated N AA Replace Q250 I Does Gate LED toggle Check replace Q255 8 D250 Copyright TEL 23 07 99 B5 18 T835 Fault Finding M830 00 5 7 6 Receiver Refer to the receiver IF and front end circuit diagrams sheets 3 amp 4 in Section 6 A Poor sensitivity worse than 117dBm Ensure links SL405 to SL440 amp link B are set correctly see Section 3 7 Ensure VCO RF front end amp IF correctly aligned High audio Y See Chart B distortion below High audio Note T B Test Break Check DC N Replace distortion refer circuit diagrams conditions OK u fault see cct diagrams y l y Quad coil L360 tuned for min N a Check sensit
31. DIODE SMD BAT18 S SW SOT23 Q790 000 10003 12 S XSTR SMD BFR31 N JFET SOT23 D350 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q795 000 10057 10 S XSTR SMD BR571 NPN SOT23 D360 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q810 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D610 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q820 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 D620 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q830 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D630 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q840 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D635 001 10065 00 DIODE SHTKY SOD123 BAT65 BAT54 Q850 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D640 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q860 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D710 001 10000 99 S DIODE SMD BAV99 D SW SOT23 D720 001 10000 99 S DIODE SMD BAV99 D SW SOT23 R160 036 12100 00 RES M F 0805 10E 5 D730 001 10065 00 DIODE SHTKY SOD123 BAT65 BAT54 R201 036 13560 00 RES M F 0805 560E 5 D740 001 10065 00 DIODE SHTKY SOD123 BAT65 BAT54 R202 036 14100 00 RES M F 0805 1K 5 D810 001 10065 00 DIODE SHTKY SOD123 BAT65 BAT54 R204 036 14220 00 RES M F 0805 2K2 5 R205 036 13220 00 RES M F 0805 220E 5 C210 002 10003 24 S IC SMD 324 4X O AMP SO14 R206 036 14100 00 RES M F 0805 1K 5 C220 002 10126 70 S IC SMD DS1267S10K 2XDIG POT R207 036 14390 00 RES M F 0805 3K9 5 C230 002 10003 24 S IC SMD 324 4X O AMP SO14 R208 036 13560 00 RES M F 0805 560E 5 C240 002 10040 53 S MC14053B SMD BREAK
32. IC230 which toggles whenever the audio signal exceeds a DC threshold deter mined by RV220 Thus the comparator produces a square wave whose mark space ratio is determined by the amplitude of the audio signal This square wave pumps up the reservoir capacitor C233 which controls the attenuator Q230 Q220 thus complet ing the feedback loop The compression level is set by adjustment of the comparator threshold RV220 Note Although the high dynamic range of the compressor allows the use of very low audio signal levels such conditions will be accompanied by a degrada tion of the signal to noise ratio Very low audio input levels should there fore be avoided where possible 2 5 5 Outputs To Modulators The output signal from the limiter IC210 IC230 is added with a CTCSS tone at a sum ming amplifier IC260 The signal is then low pass filtered IC260 and split to supply the two modulators Since the VCO modulator is a true frequency modulator its audio is simply buffered IC260 The reference modulator however is a phase modulator and its audio must first be integrated IC210 It is vital that the audio levels to the modulators are accurately set relative to each other Hence the inclusion of level adjustment in the reference modulator path Once set adjustments to absolute deviation may be made only by IC220 a 256 step 10k elec tronic potentiometer EPOT which is controlled via PGM800Win The EPOT is made up of 256
33. Reverse Power T838 839 Test Equipment Set up Modifications To Limit Maximum Output Power T838 839 Main Adjustment Controls Copyright TEL 23 07 99 D3 2 T838 839 Initial Adjustment M830 00 30 04 98 Copyright TEL M830 00 T838 839 Initial Adjustment D3 3 3 1 Test Equipment Required DC power supply capable of delivering 30A at 13 8V Multimeter or DMM e g Fluke 77 RF power meter e g HP 435 series or Bird Wattmeter 150W 30dB attenuator 150W 3dB 50 ohm pad BNC to N type adaptors e g Amphenol Greenpar Appropriate trimming tools Tx Enable 30db RF Power Attenuator Meter Exciter gt PA gt gt HP 435 o Tx Key y Figure 3 1 1838 839 Test Equipment Set up A Caution Do not connect attenuators or DC blocks between the T837 and T838 3 2 Note 839 or the cyclic keying circuitry will not function correctly Preliminary Checks Check for short circuits between the positive rail and earth Set up the test equipment as in Figure 3 1 Connect the T838 839 to a 13 8V DC supply Check that the quiescent current is lt 50mA To key the transmitter earth the key line pin 13 on the exciter Check that the power supply is still at 13 8V under load Check that the regulated power control supply is approximately 7V The output power and alarm levels should be set with the side cover on If the cove
34. refer to Sec tion 3 7 b A TCXO with a stability of 1ppm 0 C to 60 C is available to suit specific requirements Contact your nearest authorised Tait Dealer or Customer Service Organisation for further details You can identify the receiver type by checking the product code printed on a label on the rear of the chassis Figure 1 1 in Part A shows typical labels You can further verify the receiver type by checking the placement of an SMD resistor in the table that is screen printed onto the PCB refer to Section 6 1 for more details Copyright TEL 23 07 99 B1 14 T835 General Information M830 00 30 04 98 Copyright TEL M830 00 T835 Circuit Operation B2 1 2 1835 Circuit Operation This section provides a basic description of the circuit operation of the T835 receiver Note Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E The following topics are covered in this section Section Introduction Receiver Front End Mixer IF Circuitry Noise Mute Squelch Carrier Mute Audio Processor Power Supply And Regulators Microcontroller Synthesise
35. speaker check continuity Audio on line Check replace monitor pad 284 8 line output output components Copvright TEL 23 07 99 B5 20 T835 Fault Finding M830 00 30 04 98 Copyright TEL M830 00 T835 PCB Information B6 1 1 6 1835 PCB Information 3 Caution This equipment contains CMOS devices which are susceptible to damage from static charges Refer to Section 1 2 in Part A for more information on anti static procedures when handling these devices This section provides the following information on the T835 receiver e parts lists e grid reference index e mechanical assembly drawing e PCB layouts e test points amp options connections drawings e circuit diagrams T835 Receiver PCB 220 01394 02 Copyright TEL 23 07 99 B6 1 2 T835 PCB Information M830 00 30 04 98 Copyright TEL M830 00 T835 PCB Information B6 1 3 6 1 Introduction Product Type Identification You can identify the receiver type by checking the product code printed on a label on the rear of the chassis product codes are explained in Section 1 3 in this Part of the manual and Figure 1 1 in Part A shows typical labels You can further verify the receiver type by checking the placement of an SMD resistor in the table that is screen printed onto the top side of the PCB similar to the example drawn below this table also appears in the resist layer on the bottom side of the PCB In this exam ple the resistor indicates tha
36. 00 RES M F 0805 10K 5 R310 036 15220 00 RES M F 0805 22K 5 R722 036 15100 00 RES M F 0805 10K 5 R312 036 14150 00 RES M F 0805 1K5 5 R723 036 14270 00 RES M F 0805 2K7 5 R314 036 13150 00 RES M F 0805 150E 5 R725 036 15390 00 RES M F 0805 39K 5 R316 036 15100 00 RES M F 0805 10K 5 R726 036 13100 00 RES M F 0805 100E 5 R318 036 14220 00 RES M F 0805 2K2 5 R727 036 15100 00 RES M F 0805 10K 5 R320 036 14100 00 RES M F 0805 1K 5 R728 036 15100 00 RES M F 0805 10K 5 R322 036 12220 00 RES M F 0805 22E 5 R742 036 13150 00 RES M F 0805 150E 5 R324 036 13470 00 RES M F 0805 470E 5 R743 036 13150 00 RES M F 0805 150E 5 R326 036 13470 00 RES M F 0805 470E 5 R744 036 12220 00 RES M F 0805 22E 5 R328 036 13470 00 RES M F 0805 470E 5 R746 036 12220 00 RES M F 0805 22E 5 R330 036 12220 00 RES M F 0805 22E 5 R747 036 12220 00 RES M F 0805 22E 5 R332 036 15470 00 RES M F 0805 47K 5 R748 036 15470 00 RES M F 0805 47K 5 R334 036 15100 00 RES M F 0805 10K 5 R749 036 15470 00 RES M F 0805 47K 5 R336 036 14100 00 RES M F 0805 1K 5 R750 036 12220 00 RES M F 0805 22E 5 R338 036 14100 00 RES M F 0805 1K 5 R752 036 12220 00 RES M F 0805 22E 5 R340 036 16100 00 RES M F 0805 100K 5 R753 036 17100 00 RES M F 0805 1M 5 R342 036 15150 00 RES M F 0805 15K 5 R754 036 14100 00 RES M F 0805 1K 5 R344 036 15470 00 RES M F 0805 47K 5 R756 036 16470 00 RES M F 0805 470K 5 R346 036 16120 00 RES M F 0805 120K 5 R757 036 16470 00 RES M F 0805 470K 5 R348
37. 00016 42 18 SPACER 5MM HI 8MM ST 2 5MM HO 352 00010 08 19 NUT M3 COLD FORM HEX ST BZ 352 00010 29 20 NUT M4 NYLOC HEX 353 00010 10 21 WSHR M3 FLAT 7MMX0 6MM ST BZ 353 00010 13 22 WSHR M3 S PROOF INT BZ 356 00010 03 TAG SOLDER 3MM LONG M614 3 2 Main PCB to chassis earth strap via D range shield 362 00010 23 23 GASKET SIL TO 220 CLIP MTG 362 00010 33 24 GROMMET LED MTG 3MM 365 00011 53 LABEL 104X37MM 365 00100 09 LABEL WHITE VINYL 15X11MM S A 365 00100 20 LABEL WHITE S A 28X11MM 365 01541 00 LABEL TX RX EX TYPE APR SER NO 399 00010 51 BAG PLASTIC 75X100MM 30 04 98 Copyright TEL M830 00 T835 PCB Information B6 2 9 replace A4 pages B6 2 9 B6 2 10 with A3 pages B6 2 9 B6 2 10 Copyright TEL 30 04 98 B6 2 10 T835 PCB Information M830 00 replace A4 pages B6 2 9 B6 2 10 with A3 pages B6 2 9 B6 2 10 30 04 98 Copyright TEL IPN 220 01394 02 M830 00 T835 PCB Information B6 2 11 T835 Grid Reference Index IPN 220 01394 02 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C201 1 D7 2 B9 C325 1 F5 3 K
38. 04 98 30 04 98 30 04 98 30 04 98 30 04 98 fold out 30 04 98 fold out blank 30 04 98 30 04 98 30 04 98 30 04 98 blank 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 23 07 99 fold out 30 04 98 fold out 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 Copyright TEL M830 00 9 Page Issue Date Page Issue Date 6 3 31 23 07 99 3 6 30 04 98 6 3 32 23 07 99 37 30 04 98 6 3 33 23 07 99 fold out 3 8 30 04 98 blank 6 3 34 23 07 99 fold out blank 3 9 30 04 98 fold out 6 3 35 23 07 99 3 10 30 04 98 fold out blank 6 3 36 23 07 99 6 3 37 23 07 99 4 1 23 07 99 6 3 38 23 07 99 blank 4 2 30 04 98 blank 6 3 39 23 07 99 fold out 4 3 30 04 98 6 3 40 23 07 99 fold out 4 4 30 04 98 blank 6 3 41 23 07 99 fold out 4 5 30 04 98 fold out 6 3 42 23 07 99 fold out 4 6 30 04 98 fold out 6 3 43 23 07 99 fold out 4 7 30 04 98 6 3 44 23 07 99 fold out 4 8 30 04 98 6 3 45 23 07 99 fold out 4 9 30 04 98 6 3 46 23 07 99 fold out 4 10 30 04 98 6 3 47 23 07 99 fold out 4 11 23 07 99 6 3 48 23 07 99 fold out 4 12 30 04 98 6 3 49 23 07 99 fold out 4 13 23 07 99 6 3 50 23 07 99 fold out 4 14 30 04 98 blank 5 1 1 23 07 99 Part D 5 1 2 30 04 98 blank 5 1 3 23 07 99 I 23 07 99 5 1 4 30 04 98 II 30 04 98 blank 5 1 5
39. 04 98 blank 11 23 07 99 23 30 04 98 12 23 07 99 blank 2 4 23 07 99 2 30 04 98 2 6 30 04 98 Part A 27 30 04 98 2 8 23 07 99 23 07 99 2 9 23 07 99 II 30 04 98 blank 2 10 23 07 99 2 11 23 07 99 1 1 23 07 99 2 12 30 04 98 blank 1 2 30 04 98 3 1 23 07 99 2 1 30 04 98 3 2 23 07 99 2 2 30 04 98 3 3 23 07 99 2 3 23 07 99 3 4 30 04 98 2 4 23 07 99 3 5 23 07 99 3 6 23 07 99 3 1 30 04 98 3 7 23 07 99 3 2 23 07 99 3 8 23 07 99 3 9 30 04 98 4 1 30 04 98 3 10 23 07 99 4 2 30 04 98 3 11 23 07 99 3 12 23 07 99 3 13 23 07 99 Part B 3 14 23 07 99 I 30 04 98 4 1 23 07 99 II 30 04 98 blank 4 2 23 07 99 4 3 23 07 99 11 23 07 99 4 4 23 07 99 1 2 30 04 98 blank 4 5 30 04 98 1 3 30 04 98 fold out 4 6 23 07 99 1 4 30 04 98 fold out 4 7 23 07 99 1 5 23 07 99 4 8 23 07 99 1 6 23 07 99 4 9 30 04 98 fold out 1 7 23 07 99 4 10 30 04 98 fold out blank 23 07 99 Copyright TEL M830 00 7 Page Issue Date Page Issue Date 5 1 23 07 99 6 2 25 30 04 98 fold out 5 2 23 07 99 6 2 26 23 07 99 fold out 5 3 30 04 98 6 2 27 30 04 98 fold out 5 4 30 04 98 6 2 28 30 04 98 fold out blank 5 5 30 04 98 5 6 23 07 99 5 7 23 07 99 Part C 5 8 30 04 98 5 9 30 04 98 I 30 04 98 5 10 30 04 98 II 30 04 98 blank 5 11 30 04 98 5 12 23 07 99 1 1 30 04 98 5 13 30 04 98 1 2 30 04 98 blank 5 14 30 04 98 1 3 30 04 98 fold out 5 15 30 04 98 1 4 30 04 98 fold out 5 16 23 07 99 1 5 30 04 98 fold out 5 17 23 07 99 1 6 30 04 98 fold out
40. 0805 2K2 5 R842 036 14220 00 RES M F 0805 2K2 5 R843 036 14220 00 RES M F 0805 2K2 5 R845 036 13470 00 RES M F 0805 470E 5 R846 036 13470 00 RES M F 0805 470E 5 R847 036 13470 00 RES M F 0805 470E 5 R848 036 14470 00 RES M F 0805 4K7 5 R849 036 13470 00 RES M F 0805 470E 5 R850 036 13470 00 RES M F 0805 470E 5 R853 036 14470 00 RES M F 0805 4K7 5 R854 036 14470 00 RES M F 0805 4K7 5 R855 036 14470 00 RES M F 0805 4K7 5 R859 036 16150 00 RES M F 0805 150K 5 R861 036 16150 00 RES M F 0805 150K 5 R863 036 16150 00 RES M F 0805 150K 5 R865 036 16100 00 RES M F 0805 100K 5 R867 036 16100 00 RES M F 0805 100K 5 R871 036 15470 00 RES M F 0805 47K 5 R872 036 14470 00 RES M F 0805 4K7 5 R873 036 15330 00 RES M F 0805 33K 5 R874 036 14470 00 RES M F 0805 4K7 5 R875 036 15470 00 RES M F 0805 47K 5 R876 036 14470 00 RES M F 0805 4K7 5 R877 036 14470 00 RES M F 0805 4K7 5 R879 036 15100 00 RES M F 0805 10K 5 RV210 040 05100 23 POT 10K LOG PCB 15MM SLOT SFT RV220 042 05470 07 RES PRE 47K CAR 6MM FLAT D ADJ RV805 042 05220 07 RES PRE 22K CAR 6MM FLAT D ADJ SK200 240 10000 05 CONN SMD SKT 8W 2R M MATCH SK205 240 02020 05 SKT STEREO PHONE JACK PCB MTG SK310 240 02100 44 SKT COAX MINI JACK PCB MT ANG SK420 240 02100 44 SKT COAX MINI JACK PCB MT ANG SK501 240 04021 77 SKT JACK 1 3 PCB MT 64W SK502 240 04021 77 SKT JACK 1 3 PCB MT 64W SK503 240 04021 77 SKT JACK 1 3 PCB MT 64W SK504 240 04021 77 SKT JACK 1
41. 1 F6 R228 1 E4 2 G7 R145 1 E4 1 F7 R229 1 04 2 H7 R146 1 E4 1 G7 R230 1 14 2 12 R148 1 05 1 D5 R231 1 F5 2 02 R149 1 05 1 04 R232 1 K4 2 K1 R150 1 04 1 FO R237 1 05 2 K8 R151 1 B5 1 D5 RV101 1 04 1 H8 R152 1 B5 1 03 RV103 1 04 1 H6 R153 1 05 1 F4 RV105 1 03 1 J5 R154 1 05 1 F3 RV107 1 03 1 J3 R155 1 03 1 F2 RV109 1 P5 1 02 R156 1 03 1 F3 RV111 1 P5 1 D1 R157 1 04 1 GO RV113 1 03 1 DO R158 1 04 1 H3 RV115 1 03 1 KO R159 1 04 1 H4 SK101 1 K3 1 A2 R160 1 03 1 J5 SK103 1 B4 1 B2 R161 1 B3 1 J3 SK201 1 N3 2 D3 R162 1 B3 1 K4 SK203 1 N7 2 C1 R163 1 P8 1 K5 R164 1 B3 1 K4 R165 1 B4 1 K4 R166 1 P7 1 15 R168 1 E4 1 A1 R169 1 E4 1 A0 R170 1 04 1 BO R171 1 E4 1 BO R172 1 E4 1 BO R173 1 P6 1 01 R174 1 P6 1 01 R175 1 04 1 00 R176 1 04 1 DO R177 1 04 1 DO R178 1 03 1 E1 R179 1 04 1 E0 R180 1 D4 1 E0 R181 1 E3 1 F2 R182 1 D4 1 E0 R183 1 D4 1 F1 R184 1 E3 1 G1 R185 1 E2 1 J0 R186 1 02 1 H1 R187 1 E2 1 HO R188 1 D2 1 L1 R189 1 D2 1 11 R190 1 03 1 M1 R191 1 B2 1 P1 R192 1 B2 1 P1 R193 1 02 1 Q1 R194 1 02 1 H0 R195 1 D3 1 J0 R196 1 03 1 J0 R197 1 03 1 11 R201 1 N6 2 D1 R202 1 N6 2 D1 R203 1 17 2 15 R204 1 N6 2 D1 R205 1 K7 2 K4 R206 1 05 2 E8 R207 1 04 2 F8 R208 1 05 2 G9 R209 1 D5 2 G8 R210 1 D5 2 G8 R211 1 04 2 H9 R212 1 D4 2 18 R213 1 D5 2 E7 R214 1 E4 2 J8 R215 1 H3 2 B8 R216 1 P6 2 E2 R217 1 P6 2 E2 R218 1 E5 2 E7 R219 1 H6 2 B6 R220 1 E5 2 F7 R
42. 1 M3 8 P3 R418 2 K8 4 F4 R787 1 G2 7 R1 R888 1 M3 8 P2 R419 2 K8 4 G4 R790 1 G3 7 PO R889 1 M3 8 M1 R422 2 18 4 G4 R791 1 G3 7 Q0 R890 1 M3 8 N1 R425 2 K8 4 G5 R792 1 G3 7 Q0 R891 1 M2 8 M1 R427 2 K7 4 G6 R804 1 33 8 C7 R892 1 M2 8 NO R428 2 K7 4 G6 R805 1 33 8 C7 R894 1 M2 8 PO R432 2 K8 4 H4 R808 1 K2 8 B6 R895 1 M2 8 Q1 R435 2 K8 4 H4 R809 1 K2 8 C6 R897 1 M2 8 Q1 R438 2 K8 4 J4 R810 1 L2 8 D6 R898 1 M2 8 Q2 R441 2 H8 4 M4 R811 1 L2 8 D6 R910 2 P6 9 D6 R444 2 H8 4 N4 R812 1 K2 8 C6 R447 2 H8 4 N4 R813 1 K2 8 C5 RL210 1 02 2 P4 R453 2 H7 4 P5 R815 1 K2 8 E4 RL210 1 02 2 K1 R456 2 H7 4 05 R816 1 K2 8 F4 RL210 1 02 2 P5 R459 2 H7 4 05 R818 1 K2 8 F5 R464 2 37 4 04 R819 1 L2 8 F5 RV205 1 B5 2 M7 R510 1 K6 5 J9 R820 1 K4 8 B4 RV210 1 B7 2 K3 R515 1 H6 5 35 R821 1 L4 8 C4 RV220 1 D7 2 G5 R555 1 K5 5 K1 R822 1 L4 8 D3 RV230 1 B8 2 A2 R615 1 M5 6 C9 R823 1 L4 8 D4 RV235 1 C4 2 C0 R617 1 M5 6 F8 R824 1 K4 8 L8 RV320 1 E4 3 GO R619 1 M6 6 L8 R825 1 K4 8 L8 RV330 1 E7 3 N2 R621 1 M6 6 L8 R826 1 K4 8 L8 R625 1 N6 6 L7 R827 1 K4 8 17 SHLD610 1 L6 6 J3 R629 1 M5 6 P6 R828 1 K4 8 17 R633 1 M5 6 Q8 R829 1 K4 8 P9 SK501 1 G6 5 D6 R636 1 N5 6 K6 R830 1 K3 8 P9 SK502 1 G6 5 D5 R637 1 N5 6 K5 R831 1 K3 8 P9 SK503 1 G6 5 D4 R641 1 N5 6 14 R832 1 K3 8 P8 SK504 1 G5 5 D3 R645 1 N5 6 L5 R833 1 K3 8 P8 SK505 1 65 5 D2 R649 1 M5 6 M5 R835 1 K3 8 P8 SK513 1 H5 5 G3 R653 1 M5 6 Q4 R836 1 K3 8 P8 SK522 1 H6 5 K5 R681 1 15 6 L2 R837 1 K
43. 1 P4 1 R1 C219 1 C6 2 H7 C344 2 E5 3 J5 C709 1 K4 7 D9 D205 1 B2 2 D9 C221 1 D5 2 G6 C346 2 E6 3 J6 C710 1 J3 7 E8 D210 1 B2 2 E9 C223 1 05 2 J6 C349 2 F4 3 02 C712 1 H2 7 E7 D220 1 B4 2 P7 C225 1 03 2 K7 C350 2 F4 3 E3 C713 1 H2 7 E6 D220 1 B4 2 P6 C227 1 B4 2 K7 C353 2 F4 3 DO C720 1 J3 7 F8 D230 1 B7 2 R5 C229 1 B3 2 L7 C356 2 E4 3 F1 C722 1 J4 7 G8 D240 1 D4 2 C4 C230 1 B4 2 HO C359 2 E5 3 F1 C724 1 J4 7 H6 D240 1 D4 2 B2 C232 1 A4 2 M7 C362 2 F4 3 G2 C725 1 J4 7 J6 D250 1 D3 2 E2 C233 1 A5 2 N7 C365 2 F4 3 G2 C726 1 K4 7 J6 D250 1 D3 2 D3 C235 1 B5 2 K5 C368 2 F5 3 H2 C727 1 J3 7 J8 D260 1 02 2 C2 C237 1 04 2 K5 C370 2 F5 3 K3 C729 1 H3 7 M8 D260 1 02 2 C2 C239 1 04 2 L4 C373 1 E6 3 14 C733 1 J3 7 M5 D270 1 D2 2 C1 C241 1 B4 2 M6 C376 2 F8 3 L4 C735 1 J2 7 A1 D270 1 D2 2 C1 C242 1 B3 2 L6 C379 2 F5 3 K3 C736 1 J2 7 B1 D340 2 F4 3 D2 C243 1 B4 2 P6 C382 2 E5 3 12 C740A 1 H2 7 B4 D350 2 F4 3 E2 C245 1 05 2 A4 C385 1 F6 3 P4 C740B 1 H2 7 B3 D360 2 F4 3 E2 C247 1 D4 2 B4 C388 2 F7 3 P4 C741A 1 H2 7 C4 D610 1 N6 6 L6 C249 1 D4 2 C4 C391 2 E6 3 P2 C741B 1 62 7 C3 D610 1 N6 6 K6 C251 1 C3 2 E4 C394 2 E6 3 P3 C742A 1 H2 7 D4 D620 1 N4 6 B1 C253 1 03 2 E3 C396 2 E6 3 Q3 C742B 1 H3 7 D3 D620 1 N4 6 B2 C255 1 D3 2 D2 C399 2 E5 3 R4 C743 1 H2 7 B1 D630 1 M5 6 G2 C257 1 D3 2 F2 C503 1 K6 5 L9 C745 1 G3 7 D1 D630 1 M5 6 G3 C259 1 06 2 32 C505 1 K6 5 M6 C750 1 H4 7 Q7 D635 1 M4 6 G3 C260 1 D8 2 GO C510 1 J5 5 CO C757 1 G4 7 F5 D640 1 L5 6 M1 C261 1 06 2 K
44. 14470 00 RES M F 0805 4K7 5 R811 036 14470 00 RES M F 0805 4K7 5 R812 036 14470 00 RES M F 0805 4K7 5 R813 036 14470 00 RES M F 0805 4K7 5 R815 036 15470 00 RES M F 0805 47K 5 R816 036 16150 00 RES M F 0805 150K 5 R818 036 14470 00 RES M F 0805 4K7 5 R819 036 14470 00 RES M F 0805 4K7 5 R821 036 15470 00 RES M F 0805 47K 5 R822 036 15470 00 RES M F 0805 47K 5 R824 036 14220 00 RES M F 0805 2K2 5 R825 036 14220 00 RES M F 0805 2K2 5 R826 036 14220 00 RES M F 0805 2K2 5 R827 036 14220 00 RES M F 0805 2K2 5 R828 036 14220 00 RES M F 0805 2K2 5 R829 036 14220 00 RES M F 0805 2K2 5 R830 036 14220 00 RES M F 0805 2K2 5 R831 036 14220 00 RES M F 0805 2K2 5 R832 036 14220 00 RES M F 0805 2K2 5 R833 036 14220 00 RES M F 0805 2K2 5 R835 036 14220 00 RES M F 0805 2K2 5 R836 036 14220 00 RES M F 0805 2K2 5 R837 036 14220 00 RES M F 0805 2K2 5 R840 036 14220 00 RES M F 0805 2K2 5 R841 036 14220 00 RES M F 0805 2K2 5 R842 036 14220 00 RES M F 0805 2K2 5 R843 036 14220 00 RES M F 0805 2K2 5 R845 036 13470 00 RES M F 0805 470E 5 Copyright TEL 30 04 98 IPN 220 01395 02 C6 2 8 T836 PCB Information M830 00 T836 Mechanical 8 Miscellaneous Parts 220 01395 02 IPN Legend Description IPN Legend Description 012 04150 01 051 00006 02 065 00010 13 200 00010 05 201 00030 02 201 00030 10 206 00010 11 209 00010 25 220 01176 03 220 01395 02 232 00020 26 240 00010 55 2
45. 15100 00 RES M F 0805 10K 5 R144 036 15820 00 RES M F 0805 82K 5 R145 036 15470 00 RES M F 0805 47K 5 R146 036 14180 00 RES M F 0805 1K8 5 R148 036 14820 00 RES M F 0805 8K2 5 R149 036 13470 00 RES M F 0805 470E 5 R150 036 12220 00 RES M F 0805 22E 5 R151 036 15100 00 RES M F 0805 10K 5 R152 036 15100 00 RES M F 0805 10K 5 R153 036 14680 00 RES M F 0805 6K8 5 R154 036 14680 00 RES M F 0805 6K8 5 R155 036 13220 00 RES M F 0805 220E 5 R156 036 13100 00 RES M F 0805 100E 5 R157 036 12220 00 RES M F 0805 22E 5 R158 036 14100 00 RES M F 0805 1K 5 R159 036 15100 00 RES M F 0805 10K 5 R160 036 14470 00 RES M F 0805 4K7 5 R161 036 14100 00 RES M F 0805 1K 5 R162 036 17100 00 RES M F 0805 1M 5 R163 036 13680 00 RES M F 0805 680E 5 R164 036 14220 00 RES M F 0805 2K2 5 R165 036 14100 00 RES M F 0805 1K 5 R166 036 13680 00 RES M F 0805 680E 5 R168 036 15100 10 RES M F 0805 10K 1 R169 036 14100 00 RES M F 0805 1K 5 R170 036 14100 00 RES M F 0805 1K 5 R171 036 14100 00 RES M F 0805 1K 5 R172 036 15100 10 RES M F 0805 10K 1 R173 036 13470 00 RES M F 0805 470E 5 R174 036 13220 00 RES M F 0805 220E 5 R175 036 16220 00 RES M F 0805 220K 5 R176 036 15100 00 RES M F 0805 10K 5 R177 036 14470 00 RES M F 0805 4K7 5 R178 036 16100 00 RES M F 0805 100K 5 R179 036 15100 00 RES M F 0805 10K 5 R180 036 16150 00 RES M F 0805 150K 5 R181 036 14560 00 RES M F 0805 5K6 5 R182 036 16100 00 RES M F 0805 100K 5 R183 036 14470 00 RES
46. 2 4kHz 1 5kHz e and a CTCSS tone at the programmed frequency at 500Hz deviation 400Hz 300Hz Check that the receiver gate opens and the front panel Gate LED is on 3 12 2 Opening Sinad Adjust RV230 front panel gating sensitivity fully clockwise Reduce the RF signal level to 110dBm Copyright TEL 23 07 99 B3 14 T835 Initial Tuning amp Adjustment M830 00 Observe the sinad meter and reduce the RF level until the receiver mute closes Slowly increase the signal level until the receiver mute just opens and stays open With PL240 pins 1 amp 2 linked high pass filter bypassed check that the sinad is less than 6dB Reset the signal generator for the required opening sinad adjust RV230 fully anti clockwise then clockwise until the mute just opens 3 123 High Pass Filter Set the audio processor links as follows Function PL210 1 2 de emphasised response PL230 2 3 audio from internal CTCSS speech filter PL240 4 5 audio input via PL230 or I O pad Reset the RF signal generator output to 70dBm and note the line level measure ment A Reduce the 1kHz generator to zero output and measure the line level again meas urement B Check that measurement B is at least 30dB below measurement A 3 13 RSSI Align the receiver as instructed in Section 3 6 and Section 3 7 Apply an on channel signal from the RF generator at a level of 100dBm with 3kHz deviation 2 4kHz 1 5kHz a
47. 20V TP604 5V 5 7 1 Microcontroller IC810 5 7 1 1 Basic Checks Is the 12 8MHz clock N present on IC810 pin 21 je or microcontroller y Y ist Use a DSO to check Replace Is pin 30 Pulsing psia ue Bligh ocapen tin operation of IC650 IC810 pulsing i i e active high pin 10 pulse at power up Y PW digital storage oscilloscope ene e Check state of Pulsing Check state High Replace pins 36 to 43 of pin 35 1C810 Static high low Low floating Correct the fault causing Replace Gel pin 35 to be low floating 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 9 5 7 1 2 Serial Communication Disconnect the programming lead Is IC810 pin 11 high microcontroller Low floating Check the transistor interface circuitry Check pin state Y Check the SERIAL COM and AUDIO 1 2 links Connect the programming lead and use PGM800Win to read the rack radio Check I O pad P810 N Check the transistor with a DSO interface circuitry Does it swing from and or replace the 0 to 5V programming lead digital storage Y oscilloscope Use PGM800Win to send a POLL command to the radio Check IC810 pin 13 with a DSO Is there Replace a response from IC810 after IC810 a poll command is sent Y Check the transistor interface circuitry and or replace the programming lead Copyright TEL 30 04 98
48. 250Hz deviation Set the maximum deviation as per Section 3 9 4 3 9 4 Limiter Adjustment Note If the T836 837 will be used over the whole 8MHz switching range you must set the deviation for each channel However if the module will be used on frequencies that cover only a 1MHz or less switching range you can set the deviation on the middle channel and use this value for all other channels with the EPOT Fill option in PGM800Win Set the links in the audio processor section as required refer to Section 3 5 Inject 1kHz at 10dBm into the line input D range 1 PL100 pins 1 amp 4 and pins 2 amp 3 shorted refer to Section 2 2 of Part F Adjust RV210 line sensitivity fully clockwise and key the transmitter by earthing the Tx Key line Using PGM800Win adjust the value of the Deviation EPOT setting for the current channel to obtain a deviation limit of 4 7kHz 3 8kHz 2 3kHz you can use either the mouse or up and down arrow keys Sweep the audio frequency from 100Hz to 4kHz and ensure that the maximum deviation does not exceed 4 7kHz 3 8kHz 2 3kHz Readjust Deviation if necessary via PGM800Win 3 9 5 Line Level Without Compressor This section assumes that the compressor is not used If the compressor is required refer to Section 3 9 6 Remove the CTCSS signal if used 23 07 99 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment 3 13 Adjust the line sen
49. 3 6 2 4 6 2 5 Issue Date 30 04 98 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 30 04 98 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 23 07 99 23 07 99 30 04 98 30 04 98 30 04 98 23 07 99 30 04 98 30 04 98 23 07 99 23 07 99 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 23 07 99 30 04 98 30 04 98 PZ pm blank blank fold out fold out fold out fold out gt xs Page 6 2 6 6 2 7 6 2 8 6 2 9 6 2 10 6 2 11 6 2 12 6 2 13 6 2 14 6 2 15 6 2 16 6 2 17 6 2 18 6 2 19 6 2 20 6 2 21 6 2 22 6 2 23 6 2 24 6 2 25 6 2 26 6 3 1 6 3 2 6 3 3 6 3 4 6 3 5 6 3 6 6 3 7 6 3 8 6 3 9 6 3 10 6 3 11 6 3 12 6 3 13 6 3 14 6 3 15 6 3 16 6 3 17 6 3 18 6 3 19 6 3 20 6 3 21 6 3 22 6 3 23 6 3 24 6 3 25 6 3 26 6 3 27 6 3 28 6 3 29 6 3 30 Issue Date 30 04 98 30 04 98 30 04 98 30 04 98 fold out 30 04 98 fold out blank 30 04 98 30 04 98 30 04 98 30 04 98 blank 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 fold out 23 07 99 fold out 30 04 98 fold out ws Ss NN NS OTS NN Ns M 30 04 98 30 04 98 blank 23 07 99 30 04 98 30
50. 3 17 IC610 1 M5 6 D8 P258 1 D3 2 P8 R210 2 07 2 D8 R325 2 F6 3 L8 IC630 1 N5 6 K5 P260 1 D3 2 P7 R211 2 07 2 E8 R327 2 F5 3 M8 IC640 1 M5 6 N5 P263 1 B2 2 R6 R213 2 07 2 G6 R329 2 F6 3 M7 10640 1 M5 6 JO P266 1 D2 2 R5 R215 2 06 2 G9 R331 2 F5 3 M6 10640 1 M5 6 R5 P268 1 B2 2 R5 R218 2 07 2 G8 R332 2 F4 3 B3 1C650 1 15 6 E5 P270 1 B2 2 R5 8R219 2 07 2 G7 8R333 2 F4 3 06 IC700 1 J3 7 A8 P280 1 B2 2 R4 R221 2 07 2 H7 R333 2 E4 3 C2 10710 1 H3 7 E8 P282 1 B2 2 R4 R222 2 07 2 H7 R334 2 F3 3 C1 10710 1 H3 7 JO P284 1 B3 2 R4 R223 2 D6 2 J9 R335 2 E3 3 D1 10710 1 H3 7 C6 P287 1 B2 2 RO R224 2 C6 2 J8 R337 2 E4 3 D2 IC710 1 H3 7 D6 P380 1 D3 3 RO R225 2 06 2 48 R338 2 E5 3 F3 IC710 1 H3 7 D7 P810 1 K2 8 A5 R227 2 B7 2 J7 R339 2 E5 3 G3 IC740 1 H2 7 D1 P815 1 14 8 04 R229 2 05 2 16 R341 2 E6 3 H3 IC750 1 H4 7 M3 P820 1 K4 8 M8 R230 2 C6 2 M5 R343 2 E6 3 G2 30 04 98 Copyright TEL IPN 220 01394 02 M830 00 T835 PCB Information B6 2 13 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R345 2 E6 3 G1 R709 1 H2 7 E7 R850 1 J2 8 04 SL210 2 B8 2 E2 8R347 2 E6 3 H2 R710 1 33 7 B6 R851 1 L4 8 04 SL220 2 B8 2 D2 R349 2 E6 3 H2 R711 1 H3 7 B6 R852 1 L2 8 N4 SL405 2 N7 4 B5 R351 1 E6 3 J2 R712 1 J4 7 E9 R853 1 L2 8 04 SL410 2 M8 4 C5 R353 2 E6 3 J4 R742 1 H2 7 B4 R854 1 N3 8 C1 SL415 2 M7 4 D5 R355 2 E7 3 J3 R743 1 H2 7 C5 R855 1 N3 8 C2 SL420 2 K8 4 J5 R357 2 E7 3 K3 R744 1 62 7 D4 R856 1 N3 8 D2 SL425 2 K8 4 H4 R359 2 E6 3 K3
51. 3 4 5 and Sec tion 3 9 3 Copyright TEL 23 07 99 C4 8 T836 837 Functional Testing M830 00 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 1 5 T836 837 Fault Finding e Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following test procedures and fault finding flow charts may be used to help locate a hardware problem however they are by no means a complete fault finding procedure If you still cannot trace the fault after progressing through them in a logical manner contact your nearest Tait Dealer or Customer Service Organisation If necessary you can get additional technical help from Customer Support Radio Systems Division Tait Electronics Ltd Christchurch New Zealand full contact details are on page 2 Note 1 In this and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Note 2 Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and dia
52. 3 PCB MT 64W SK505 240 04021 77 SKT JACK 1 3 PCB MT 64W SK513 240 04021 77 SKT JACK 1 3 PCB MT 64W SK522 240 04021 77 SKT JACK 1 3 PCB MT 64W SK531 240 04021 77 SKT JACK 1 3 PCB MT 64W SK532 240 04021 77 SKT JACK 1 3 PCB MT 64W SK533 240 04021 77 SKT JACK 1 3 PCB MT 64W SK534 240 04021 77 SKT JACK 1 3 PCB MT 64W SK535 240 04021 77 SKT JACK 1 3 PCB MT 64W SK805 240 10000 07 CONN SMD SKT 16W 2R M MATCH SK810 240 04020 42 SKT 44 PIN SMD PLCC SW230 232 00010 26 SWITCH PUSH SPDT R ANG PCB MTG T210 053 00010 17 XFMR T4030 LINE MATCH POTCORE T610 050 00016 50 COIL TAIT NO 650 455KHZ Copyright TEL 23 07 99 IPN 220 01390 03 C6 3 32 T837 PCB Information M830 00 T837 Mechanical 8 Miscellaneous Parts 220 01390 03 IPN Legend Description 070 01001 00 25 D RANGE 15 WAY COMPL T800 PL100 219 02610 00 COAX 220MM 2 MINI PIN CRIMP Connects SK310 to SK420 220 01176 03 1 PCB T83X VCO 220 01390 03 2 PCB T837 EXCITER 232 00020 26 3 BUTTON 232 00010 26 SWITCH 240 02100 06 4 SKT COAX N TYPE PNL MTG OP TER 240 04020 62 SKT 2 W RECEP SHORTING LINK PL205 210 215 220 303 11169 04 5 CHASSIS PAINTED T800 SER II 303 231 18 00 6 COVER A3M2247 D RANGE 303 50074 00 7 CLIP A3M2246 SPRING CLAMP 303 50078 00 8 CLIP A4M2630 SPR CABLE CLAMP 308 01007 01 9 HANDLE BASE STATION SERIES II 312 01052 02 10 LID TOP T800 SER II PTND 312 01053 02 11 LID BOTTOM T800 SER II PNTD 316 06619 00 12 PNL FRT EX NO EX OUT SER II 345 00040 10 14 SCRW M
53. 4K7 5 R273 036 15120 00 RES M F 0805 12K 5 R445 036 13100 00 RES M F 0805 100E 5 R274 036 15150 00 RES M F 0805 15K 5 R450 036 13100 00 RES M F 0805 100E 5 R275 036 14270 00 RES M F 0805 2K7 5 R455 036 14470 00 RES M F 0805 4K7 5 R277 036 16100 00 RES M F 0805 100K 5 R460 045 04470 01 RES NTC 4K7 5 5MM DISC R278 036 16120 00 RES M F 0805 120K 5 R502 036 13330 00 RES M F 0805 330E 5 R279 036 17100 00 RES M F 0805 1M 5 R505 036 15150 00 RES M F 0805 15K 5 R280 036 15100 00 RES M F 0805 10K 5 R510 036 13680 00 RES M F 0805 680E 5 R282 036 15560 00 RES M F 0805 56K 5 R515 036 12560 00 RES M F 0805 56E 5 R283 036 15560 00 RES M F 0805 56K 5 R520 036 16120 00 RES M F 0805 120K 5 R284 036 17100 00 RES M F 0805 1M 5 R525 036 15470 00 RES M F 0805 47K 5 R285 036 10000 00 RES M F 0805 ZERO OHM R530 036 15220 00 RES M F 0805 22K 5 R286 036 14220 00 RES M F 0805 2K2 5 R535 036 15100 00 RES M F 0805 10K 5 R287 036 15100 00 RES M F 0805 10K 5 R540 036 14220 00 RES M F 0805 2K2 5 R288 036 15150 00 RES M F 0805 15K 5 R545 036 14470 00 RES M F 0805 4K7 5 R289 036 16100 00 RES M F 0805 100K 5 R550 036 14470 00 RES M F 0805 4K7 5 R290 036 13560 00 RES M F 0805 560E 5 R555 036 14470 00 RES M F 0805 4K7 5 R291 036 10000 00 RES M F 0805 ZERO OHM R560 036 14270 00 RES M F 0805 2K7 5 R292 036 14470 00 RES M F 0805 4K7 5 R609 036 14100 00 RES M F 0805 1K 5 R293 036 15470 00 RES M F 0805 47K 5 R613 036 13560 00 RES M F 0805 560E
54. 5 Increase the line level 204B and sweep the modulation frequencv The response should closelv match that shown in Figure 4 3 Wide Bandwidth Peak max dev 1 0kHz 1000Hz 10 Peak max dev 1 0kHz 1000Hz Modulation Level dB ref to dev 1kHz 100 200 300 500 1k 2k 3k 5k 10k Frequency Hz Mid Bandwidth The mid bandwidth graph is the same shape as the wide bandwidth graph The devia tion figures are as follows peak max deviation 0 8kHz peak max deviation 0 8kHz Narrow Bandwidth Peak max dev 0 5kHz 1000Hz 10 Peak max dev 0 5kHz 1000Hz Modulation Level dB ref to dev 1kHz 100 200 300 500 1k 2k 3k 5k 10k Frequency Hz Figure 4 2 T836 837 Pre emphasis Response Copyright TEL 23 07 99 C4 6 T836 837 Functional Testing M830 00 Wide Bandwidth Peak max dev 4 9kHz 1500Hz Peak max dev 4 4kHz 2500Hz Above limiting steady state Modulation Level dB ref to max dev 10 20 30 50 100 200 300 500 1k 2k 3k 5k 10k Frequency Hz Mid Bandwidth The mid bandwidth graph i
55. 5 R294 036 14470 00 RES M F 0805 4K7 5 R615 036 13100 00 RES M F 0805 100E 5 R295 036 14270 00 RES M F 0805 2K7 5 R617 036 10000 00 RES M F 0805 ZERO OHM R296 036 14100 00 RES M F 0805 1K 5 R619 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R297 036 14560 00 RES M F 0805 5K6 5 R621 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R298 036 16100 00 RES M F 0805 100K 5 R625 036 14100 00 RES M F 0805 1K 5 R299 036 14270 00 RES M F 0805 2K7 5 R629 032 33270 00 RES M F PWR 270E 5 1W 12X4 5 R301 036 14470 00 RES M F 0805 4K7 5 R633 036 14680 00 RES M F 0805 6K8 5 R302 036 14100 00 RES M F 0805 1K 5 R637 036 12220 00 RES M F 0805 22E 5 R303 036 15100 00 RES M F 0805 10K 5 R641 036 14150 00 RES M F 0805 1K5 5 R304 036 12100 00 RES M F 0805 10E 5 R645 036 13470 00 RES M F 0805 470E 5 R307 036 16220 00 RES M F 0805 220K 5 R649 036 14470 00 RES M F 0805 4K7 5 R308 036 14470 00 RES M F 0805 4K7 5 R653 036 15100 00 RES M F 0805 10K 5 30 04 98 Copyright TEL IPN 220 01395 02 M830 00 T836 PCB Information C6 2 7 Ref Var IPN Description Ref Var IPN Description R657 036 15100 00 RES M F 0805 10K 5 R846 036 13470 00 RES M F 0805 470E 5 R66 036 15100 00 RES M F 0805 10K 5 R847 036 13470 00 RES M F 0805 470E 5 R665 036 16100 00 RES M F 0805 100K 5 R848 036 14470 00 RES M F 0805 4K7 5 R669 036 15470 00 RES M F 0805 47K 5 R849 036 13470 00 RES M F 0805 470E 5 R673 036 16100 00 RES
56. 5 El P231 1 D8 2 BO Q785 1 H3 7 K2 R279 1 B5 2 KO R540 1 K5 5 H2 P233 1 01 2 R9 Q790 1 H4 7 M3 R280 1 B5 2 KO R545 1 K5 5 J1 P235 1 01 2 R9 Q795 1 G3 7 PO R282 1 D7 2 K1 R550 1 K5 5 K2 P237 1 B7 2 R8 Q810 1 M2 8 E7 R283 1 D7 2 11 R555 1 K5 5 K1 30 04 98 Copyright TEL IPN 220 01390 02 M830 00 1837 PCB Information C6 3 13 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R560 1 K5 5 MO R785 1 G3 7 Q1 SK533 1 K5 5 N4 R609 1 16 6 B8 R786 1 G2 7 Q1 SK534 1 K5 5 N3 R613 1 16 6 08 R787 1 G2 7 R2 SK535 1 K5 5 N2 R615 1 M5 6 F9 R790 1 G3 7 PO SK710 1 K3 7 A7 R617 1 M5 6 J8 R791 1 63 7 Q0 SK805 1 K3 8 Q9 R619 1 M6 6 L8 R792 1 G3 7 Q0 SK805 1 K3 8 Q7 R621 1 M6 6 L8 R801 1 M2 8 D7 SK805 1 K3 8 Q5 R625 1 N6 6 L7 R802 1 M2 8 D7 SK805 1 K3 8 Q7 R629 1 M5 6 P6 R808 1 L2 8 B4 SK805 1 K3 8 Q8 R633 1 M5 6 Q8 R809 1 L2 8 D5 SK805 1 K3 8 Q7 R637 1 N5 6 K6 R810 1 L2 8 D6 SK805 1 K3 8 Q8 R641 1 N5 6 L4 R811 1 L2 8 E6 SK805 1 K3 8 Q6 R645 1 N5 6 L5 R812 1 L2 8 D5 SK805 1 K3 8 Q8 R649 1 M5 6 M5 R813 1 L2 8 D4 SK805 1 K3 8 Q6 R653 1 M5 6 Q4 R815 1 L2 8 F4 SK805 1 K3 8 Q6 R657 1 M5 6 D1 R816 1 L2 8 F4 SK805 1 K3 8 Q9 R661 1 M5 6 E3 R818 1 M2 8 F5 SK805 1 K3 8 Q6 R665 1 M5 6 E2 R819 1 M2 8 F5 SK805 1 K3 8 Q9 R669 1 M5 6 E2 R821 1 M4 8 B3 SK805 1 K3 8 Q7 R673 1 M5 6 E0 R822 1 M4 8 E3 SK805 1 K3 8 Q8 R677 1 M4 6 F4 R824 1 L4 8 L8 SK810 1 M3 8 H5 R681 1 15 6 12 R825 1 L4 8 L8 R685 1 L5 6 N2 R826 1 L4 8 L8 SL201 2 D1 2 B9 R689 1 L6
57. 6 E8 R262 1 D8 2 N3 R382 1 F5 3 J4 L920 1 P7 9 G7 Q620 1 N6 6 P8 R263 1 08 2 P3 R384 2 E6 3 14 Q630 1 M6 6 P5 8R264 1 08 2 P3 R386 2 E6 3 L2 P100 1 P6 1 R8 Q660 1 L5 6 N1 amp R265 1 C8 2 P3 R388 1 F6 3 M4 P150 1 P2 1 Q4 Q670 1 L6 6 Q2 amp R266 1 C8 2 P3 R390 1 E6 3 Q3 P160 1 P2 1 04 Q710 1 J3 7 K8 R267 1 08 2 R2 R392 1 E6 3 P2 P170 1 P2 1 Q3 Q720 1 J3 7 K8 R268 1 D2 2 C0 R394 1 E6 3 03 P204 1 D1 2 A8 Q730 1 H3 7 N8 R269 1 02 2 C1 R396 1 E6 3 Q2 P208 1 D1 2 A8 Q740 1 H3 7 N8 R270 1 02 2 D1 R502 1 K6 5 K9 P215 1 04 2 A2 Q750 1 G4 7 F3 R271 1 03 2 E1 R505 1 K6 5 L8 P217 1 D4 2 A2 Q760 1 H3 7 H3 R272 1 04 2 F2 R510 1 K6 5 17 P219 1 02 2 A1 Q770 1 H3 7 H1 R273 1 B5 2 G2 R515 1 H6 5 J5 P225 1 D2 2 A0 Q775 1 H3 7 K3 R274 1 04 2 G1 R520 1 J5 5 01 P230 1 05 2 BO Q780 1 H3 7 K3 R275 1 04 2 HO R525 1 J5 5 D1 P231 1 08 2 BO Q785 1 H3 7 K2 R277 1 B5 2 J1 R530 1 J5 5 DO P233 1 C1 2 R9 Q790 1 H4 7 M3 R278 1 B5 2 JO R535 1 35 5 E1 P235 1 01 2 R9 Q795 1 G3 7 P1 R279 1 B5 2 KO R540 1 K5 5 H2 P237 1 B7 2 R8 Q810 1 M2 8 E7 R280 1 B5 2 KO R545 1 K5 5 J1 23 07 99 Copyright TEL IPN 220 01390 03 M830 00 1837 PCB Information C6 3 37 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R550 1 K5 5 K2 R775 1 H4 7 N2 SK513 1 H5 5 H3 R555 1 K5 5 K1 R777 1 H4 7 R2 SK522 1 H6 5 K5 R560 1 K5 5 MO R784 1 G3 7 P1 SK531 1 K6 5 N6 R609 1 L6 6 B8 R785 1 43 7 Q1 SK532 1 K5 5 N5 R613 1 L6 6 C8 R786 1 G2 7 1 SK533 1 K5 5 N4 R615 1 M5 6 F9 R787 1 G2
58. 6 Q3 R827 1 L4 8 L7 SL202 2 D1 2 B8 R693 1 L6 6 Q1 R828 1 L4 8 L7 SL203 2 D2 2 B2 R696 1 M6 6 Q1 R829 1 L4 8 P9 SL204 2 D2 2 B1 R701 1 K4 7 A9 R830 1 13 8 P9 SL320 1 E4 3 E4 R702 1 K4 7 C9 R831 1 13 8 P9 SL501 2 J5 5 FO R703 1 33 7 C8 R832 1 L3 8 P8 SL810 1 M2 8 C7 R705 1 K3 7 A7 R833 1 L3 8 P8 R706 1 33 7 B6 R835 1 13 8 P8 SW230 1 B8 2 B4 R708 1 H3 7 07 R836 1 13 8 P8 R710 1 H2 7 E7 R837 1 L3 8 P7 T210 1 B2 2 C8 R711 1 J2 7 B6 R840 1 13 8 P7 T610 1 15 6 N2 R712 1 J3 7 D9 R841 1 L3 8 P7 R713 1 J4 7 F8 R842 1 L3 8 P6 TP206 1 D5 2 H7 R715 1 K4 7 H6 R843 1 L3 8 P6 TP305 2 E6 3 L6 R717 1 J4 7 47 R845 1 M4 8 Q5 TP308 1 E5 3 G6 R718 1 J4 7 47 R846 1 K2 8 Q4 TP601 1 N5 6 K9 R719 1 J4 7 J6 R847 1 K2 8 Q4 TP602 1 L6 6 R9 R720 1 33 7 K7 R848 1 L2 8 J4 TP603 1 15 6 J2 R721 1 33 7 K9 R849 1 M4 8 Q3 TP604 1 L5 6 M6 R722 1 33 7 K8 R850 1 K2 8 Q4 TP607 1 L4 6 J9 R723 1 H3 7 M7 R853 1 M4 8 N3 TP710 1 H4 7 H5 R725 1 J4 7 N7 R854 1 M4 8 N3 TP715 1 J2 7 C6 R726 1 J8 7 N6 R855 1 M2 8 BO R727 1 H3 7 N9 R859 1 N2 8 C1 R728 1 H3 7 N8 R861 1 N2 8 D1 R742 1 H2 7 B4 R863 1 N3 8 E1 R743 1 H2 7 05 R865 1 N4 8 E0 R744 1 62 7 D4 R867 1 N3 8 E1 R746 1 H3 7 E4 R871 1 N3 8 G2 R747 1 H3 7 E5 R872 1 M4 8 H1 R748 1 J2 7 A1 R873 1 N3 8 G1 R749 1 J2 7 B1 R874 1 N3 8 HO R750 1 H4 7 Q7 R875 1 N3 8 GO R752 1 G4 7 F5 R876 1 N3 8 HO R753 1 64 7 F3 R877 1 M2 8 K2 R754 1 63 7 F3 R879 1 N2 8 13 R756 1 G3 7 G5 R757 1 G4 7 G4 RV210 1 B7 2 F9 R758 1 H3 7 H4
59. 7 G8 D210 1 B2 2 E9 C287 1 06 2 M1 C436 2 17 4 G5 C724 1 J4 7 H6 D220 1 B4 2 P7 C289 1 08 2 N1 C439 2 18 4 H5 C725 1 J4 7 J6 D220 1 B4 2 P6 C291 1 D7 2 P1 C442 2 18 4 H4 C726 1 K4 7 J6 D230 1 B7 2 R5 C293 1 D7 2 Q1 C445 2 18 4 J4 C727 1 J3 7 J8 D240 1 D4 2 C4 C294 1 D7 2 Q0 10448 2 M8 4 K4 C729 1 H3 7 M8 D240 1 D4 2 B2 C295 1 D6 2 00 C454 2 M8 4 15 C733 1 33 7 M5 D250 1 D3 2 E2 C302 1 F7 3 08 C457 2 M7 4 15 C735 1 J2 7 A1 D250 1 D3 2 D3 C308 1 F8 3 C6 C460 2 N7 4 N6 C736 1 J2 7 B1 D260 1 02 2 C2 C310 1 F8 3 D6 C463 2 M8 4 N6 C740A 1 H2 7 B4 D260 1 02 2 C2 C312 1 F8 3 G7 C466 2 N8 4 N4 C740B 1 H2 7 B3 D270 1 D2 2 C1 C313 1 E9 3 H7 C469 2 N9 4 N3 C741A 1 H2 7 C4 D270 1 D2 2 C1 Copyright TEL 30 04 98 IPN 220 01395 02 C6 2 12 T836 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit D330 1 E9 3 NO IC830 1 N3 8 J0 P269 1 08 2 P2 R205 1 07 2 D6 D340 2 F4 3 D2 IC830 1 N3 8 J1 P271 1 09 2 N1 R206 1 B7 2 G8 D350 2 F4 3 E2 IC830 1 N3 8 00 P273 1 09 2 PO R207 1 B6 2 G8 D360 2 F4 3 E2 P275 1 D7 2 00 R208 1 B6 2 G8 D410 1 M7 4 M5 L335 1 F4 3 E3 P750 1 H4 7 R3 R209 1 06 2 H8 D420 1 N8 4 N4 L340 1 E5 3 G2 P805 1 M2 8 A7 R210 1 B6 2 H7 D610 1 N6 6 K6 L345 1 F5 3 H2 P810 1 13 8 A5 R212 1 04 2 F6 D610 1 N6 6 L6 L350 1 F5 3 J2 P820 1 14 8 M8 R213 1 C4 2 G6 D620 1 N4 6 B1 L355 1 F5 3 K3 P825 1 14 8 M8 R214 1 D4 2 G6 D620 1 N4 6 B2 L360 1 F5 3 13 P830 1 14 8 M8 R215 1 C4 2 H6 D630 1 M5 6 G2 L365 1 E5 3 1
60. 7 R2 SK534 1 K5 5 N3 R617 1 M5 6 J8 R790 1 G3 7 PO SK535 1 K5 5 N2 R619 1 M6 6 L8 R791 1 G3 7 Q0 SK710 1 K3 7 A7 R621 1 M6 6 L8 R792 1 63 7 QO SK805 1 K3 8 Q9 R625 1 N6 6 17 R801 1 M2 8 D7 SK805 1 K3 8 07 R629 1 M5 6 P6 R802 1 M2 8 D7 SK805 1 K3 8 05 R633 1 M5 6 Q8 R808 1 L2 8 B4 SK805 1 K3 8 Q7 R637 1 N5 6 K6 R809 1 L2 8 D5 SK805 1 K3 8 Q8 R641 1 N5 6 L5 R810 1 L2 8 D6 SK805 1 K3 8 Q7 R645 1 N5 6 L5 R811 1 L2 8 E6 SK805 1 K3 8 Q8 R649 1 M5 6 M5 R812 1 L2 8 D5 SK805 1 K3 8 Q6 R653 1 M5 6 Q5 R813 1 L2 8 D4 SK805 1 K3 8 Q8 R657 1 M5 6 D1 R815 1 L2 8 F4 SK805 1 K3 8 Q6 R661 1 M5 6 E3 R816 1 L2 8 F4 SK805 1 K3 8 Q6 R665 1 M5 6 E2 R818 1 M2 8 F5 SK805 1 K3 8 Q9 R669 1 M5 6 E2 R819 1 M2 8 F5 SK805 1 K3 8 Q6 R673 1 M5 6 E0 R821 1 M4 8 B3 SK805 1 K3 8 Q9 R677 1 M4 6 F4 R822 1 M4 8 E3 SK805 1 K3 8 Q7 R681 1 15 6 L2 R824 1 L4 8 L8 SK805 1 K3 8 Q8 R685 1 15 6 N2 R825 1 L4 8 L8 SK810 1 M3 8 H5 R689 1 L6 6 Q3 R826 1 14 8 L8 R693 1 L6 6 Q1 R827 1 L4 8 L7 SL201 2 D1 2 B9 R696 1 M6 6 Q1 R828 1 L4 8 17 SL202 2 D1 2 B8 R701 1 K4 7 A9 R829 1 L4 8 P9 SL203 2 D2 2 B2 R702 1 K4 7 C9 R830 1 13 8 P9 SL204 2 D2 2 B1 R703 1 33 7 C8 R831 1 L3 8 P9 SL320 1 E4 3 E4 R705 1 K3 7 A7 R832 1 L3 8 P8 SL501 2 J5 5 FO R706 1 33 7 B6 R833 1 L3 8 P8 SL810 1 M2 8 C7 R708 1 H3 7 07 R835 1 L3 8 P8 R710 1 H2 7 E7 R836 1 13 8 P8 SW230 1 B8 2 B4 R711 1 J2 7 B6 R837 1 L3 8 P7 R712 1 J3 7 D9 R840 1 L3 8 P7 T210 1 B2 2 C8 R713 1 J4 7 F8 R841 1 L3 8 P7 T610 1 L5 6 N2 R714 1 J3 7 B6 R
61. 8 C762 __ Check programming Check serial bus when programming i e clock data enable activity IC740 pins 18 19 amp 17 Check Q760 Q780 R766 amp C765 Is the charge pump voltage N Check charge pump components on Q790 gate between m Q775 amp Q780 and Q790 3 and 8 5V 6 5V 0 2V locked Y N Is the loop filter reference Check C772 R774 R772 voltage at C772 6 5V 0 2V C770 R763 amp Q790 Y Y Check loop filter components N R775 C774 C776 R510 C505 IC750 Is the supply to IC750 20V 4 2V Y Check the signal path from the VCO to synthesiser Measure the frequency from the VCO at IC740 pin 11 using a frequencv counter Signal Is the level gt 10dBm Does the frequencv adjust as the VCO trimmer is adjusted out of lock Y Replace synthesiser IC740 H Check regulator circuitry No signal h Check VCO Check divider buffer circuit Q795 and bias voltages on Q795 emitter 1 3V 0 2V Programming and serial bus OK2 Replace svnthesiser IC740 Is reference clock present at IC740 pin 20 12 8MHz gt 1 5Vpp E Check microcontroller section 10810 Check TCXO IC700 and buffers 10710 Note When locked both of these are very
62. 8 Q7 R332 2 E4 3 C5 R645 1 N5 6 L5 R812 1 L2 8 D5 SK805 1 K3 8 Q8 R334 2 E4 3 D6 R649 1 M5 6 M5 R813 1 L2 8 D4 SK805 1 K3 8 Q7 R336 2 E4 3 D4 R653 1 M5 6 Q4 R815 1 L2 8 F4 SK805 1 K3 8 Q8 R338 2 E4 3 D4 R657 1 M5 6 D1 R816 1 L2 8 F4 SK805 1 K3 8 Q6 R340 2 E4 3 D4 R661 1 M5 6 E3 R818 1 M2 8 F5 SK805 1 K3 8 Q8 R342 2 E4 3 F5 R665 1 M5 6 E2 R819 1 M2 8 F5 SK805 1 K3 8 Q6 R344 2 E5 3 F5 R669 1 M5 6 E2 R821 1 M4 8 B3 SK805 1 K3 8 Q6 R346 2 E5 3 F6 R673 1 M5 6 E0 R822 1 M4 8 E3 SK805 1 K3 8 Q9 R347 2 E5 3 G5 R677 1 M4 6 F4 R824 1 14 8 L8 SK805 1 K3 8 Q6 R348 1 E8 3 G6 R681 1 15 6 L2 R825 1 L4 8 L8 SK805 1 K3 8 Q9 R349 1 E7 3 J6 R685 1 15 6 N2 R826 1 14 8 L8 SK805 1 K3 8 Q7 R350 1 E7 3 K5 R689 1 16 6 Q3 R827 1 14 8 L7 SK805 1 K3 8 Q8 R351 1 E8 3 K5 R693 1 16 6 Q1 R828 1 14 8 L7 SK810 1 M3 8 H5 R352 1 E8 3 L5 R696 1 M6 6 Q1 R829 1 14 8 P9 R353 1 E8 3 J6 R701 1 K4 7 A9 R830 1 13 8 P9 SL201 2 D1 2 B9 R354 1 E8 3 16 R702 1 K4 7 C9 R831 1 L3 8 P9 SL202 2 D1 2 B8 R355 1 E8 3 N6 R703 1 J3 7 08 R832 1 L3 8 P8 SL203 2 D2 2 B1 R356 1 E8 3 N6 R705 1 K3 7 A7 R833 1 13 8 P8 SL204 2 D2 2 B1 R357 1 E8 3 P6 R706 1 33 7 B6 R835 1 13 8 P8 SL320 1 E4 3 E3 R358 1 E8 3 P5 R708 1 H3 7 C7 R836 1 L3 8 P8 SL501 2 35 5 FO R359 1 F5 3 B2 R710 1 H2 7 E7 R837 1 L3 8 P7 SL810 1 M2 8 C7 R360 1 F4 3 C2 R711 1 J2 7 B6 R840 1 L3 8 P7 R362 1 F4 3 C2 R712 1 J3 7 D9 R841 1 13 8 P7 SW230 1 B8 2 B4 R364 2 F4 3 D2 R713 1 J4 7 F8 R842 1 13 8 P6 R366 2 F4 3 D1 R715 1 K4 7 H6 R843 1 L3 8 P6 T
63. 9 1 Two Point Modulation The T836 and T837 utilise two point modulation to obtain a wide audio bandwidth independent of the synthesiser loop filter response This is achieved by simultaneously frequency modulating the VCO and phase modulating the synthesiser reference fre quency The relative signal levels fed to the two modulators are quite critical and cause interaction when setting up Both modulating signals require readjustment when the exciter is shifted in frequency greater than the switching range i e AF gt 4MHz Note 1 In this and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Note 2 The reference modulation and limiter adjustments are controlled by 256 step electronic potentiometers EPOTs which are adjusted via the Refer ence Modulation and Deviation settings in PGM800Win This allows the two point modulation and deviation settings to be adjusted for each chan nel Note 3 To optimise the modulation response across the switching range repeat steps 1 4 below for each channel that will be used usually needed only for data applications In applications where the modulation response is less critical e g voice use only carry out steps 1 4 below on the middle channel and use the EPOT Fill option in PGM800Win to copy the value to the other channels 3 9 2 Modulator Adjustment
64. B4 MAKE R209 036 15100 00 RES M F 0805 10K 5 C250 002 00020 50 S IC 4N25A OPTOCOUPLER R210 036 14220 00 RES M F 0805 2K2 5 C260 002 10003 24 S IC SMD 324 4X O AMP SO14 R212 036 16100 00 RES M F 0805 100K 5 C330 002 00012 40 S IC 358 DUAL O AMP R213 036 15100 00 RES M F 0805 10K 5 C610 002 00014 58 S IC 78L05 5V 100MA REG TO92 R214 036 14820 00 RES M F 0805 8K2 5 C630 002 00014 62 S IC 317L 100MA REG 3TER TO92 R215 036 16100 00 RES M F 0805 100K 5 C640 002 10003 58 S IC SMD LM358 DUAL O AMP R216 036 16100 00 RES M F 0805 100K 5 C650 002 10012 32 SMD DS1232LPS 2 LP RESET amp W DOG R217 036 14100 00 RES M F 0805 1K 5 1C700 539 00010 41 TCXO 12 8MHZ 2 5PPM 30 70C R218 036 16150 00 RES M F 0805 150K 5 C710 002 74900 04 S IC SMD 74HC04D 6X INV BUFFD R219 036 14220 00 RES M F 0805 2K2 5 C720 002 74910 04 S IC SMD 74HCU04 6X INV R221 036 14150 00 RES M F 0805 1K5 5 C730 002 10045 20 S IC SMD 74HC4520T 2XCTR 4BIT R223 036 17100 00 RES M F 0805 1M 5 C740 002 14519 10 S IC MC145191F SMD SYNTH R224 036 14680 00 RES M F 0805 6K8 5 C750 002 10330 78 S IC MC33078D 2X AMP LO NOISE R225 036 17100 00 RES M F 0805 1M5 C810 002 08951 20 S IC AT89C51 PLCC44 MIC 12MHZ R226 036 15100 00 RES M F 0805 10K 5 C820 002 12416 00 S IC SMD AT24C16N 10SC EEPROM R227 036 14220 00 RES M F 0805 2K2 5 C830 002 10003 24 S IC SMD 324 4X O AMP SO14 R229 036 16470 00 RES M F 0805 470K 5 R230 036 16100 00 RES M F 0805 100K 5 LED1 008 00014 79 S LED 3MM RED WITH
65. BD139 NPN AF PWR TO126 C950A 015 01220 06 CAP CER 1210 2P2 NPO500VGRM42 Q305 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS Q310 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 CV481 028 02200 01 AP TRM 4 20P N750 TOP ADJ Q315 000 00012 15 S XSTR BD234 PNP AF PWR TO126 Q320 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D111 001 00011 60 S DIODE SR2607 USE MR750 Q325 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D220 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q330 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D230 001 00010 40 S DIODE ZENER 33V 1 3W Q335 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D240 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q340 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D250 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q345 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D260 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q350 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D270 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q355 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D330 001 00015 69 S DIODE ZEN 11V 0 5W LO CUR Q360 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D340 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q365 000 00031 96 S XSTR 3866 NPN T092 SWITCH D350 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q370 000 00022 30 XSTR 2N4427 NPN T039 VHF DR D360 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q415 000 00021 65 S XSTR SD1012 9 NPN S MTG VHF D410 001 00013 45 S DIODE SCHTTKY 18897 2 Q425 000 00023 23 S XSTR SRFH1001 NPN S MTG 30W D420 001 00013 45 S
66. BLK 051 00006 02 SOLDER SPRING 1 3MM A4M1877 Support for front panel LED solder joints 349 00020 08 7 SCRW T T 4 40X3 8 CSK POZI BZ Secure IC203 205 couplers to heatsink 051 00642 01 32 COAX SEMI RIG N TYPE EXTN 349 00020 09 13 SCRW T T 4 40X3 8 IN P POZ BLK 065 00010 13 25 BEAD FER 7D 1 9X0 9X3 8 349 00020 36 47 LIM SCREW TT M3X8m PANTORX BLK 201 00030 02 WIRE T C 7 0 2 PVC RED Front panel LEDs 349 00020 43 40 SCRW T T M4X12MM P POZ BZ 201 00030 10 WIRE T C 7 0 2 PVC BLACK 349 00020 49 38 SCRW T T M4X35MM P POZ BZ Front panel LEDs 352 00010 04 10 NUT M2 5 MACH HEX ST BZ 201 00050 25 AUTO 154 RED 41 0 3 PVC DC from D range PCB 352 00010 29 46 NUT M4 NYLOC HEX 201 00050 26 AUTO 154 BLACK 41 0 3 PVC 353 00010 10 12 WSHR M3 FLAT 7MMX0 6MM ST BZ DC from D range PCB 356 00010 01 36 TAG SOLDER 3MM SHORT M6132 3 2 206 00010 11 COAX 50 OHM RG316 U PTFE Coax from BNC connector to SK201 356 00010 03 2 TAG SOLDER 3MM LONG M614 3 2 219 02591 00 22 LOOM RIBBON 8 WAY FOR PA 356 00010 05 19 TAG SOLDER 4MM LONG M6144 4 2 219 02592 00 CABLE ASSY RG223 U N TO BNC 357 00010 45 39 CLAMP CABLE 4 8MM P CLIP Exciter PA connecting cable 360 00010 41 44 BUSH SHORTV BLK 220 01402 02 2 PCB T838 9 TEFLON DIRNL COUPLER 362 00010 07 14 GASKET SIL INSULATING TO 220 220 01404 03 1 PCB T838 9 PA MODULE DESIGN 362 00010 13 16 BUSH INSULATING 1 1MM TOP HAT 240 00010 55 24 PLUG 15 W D RANGE W W PNL MT PL101 362 00010 33 43 GROMMET LED MTG 3MM 240 00100 4
67. C159 1 B3 1 H2 C261 1 F6 2 04 L230 1 L4 2 13 R120 1 E3 1 H7 C161 1 84 1 K4 C268 1 E6 2 S2 L231 114 2 12 R121 1 04 1 07 C162 1 83 1 L4 C270 1 06 2 12 L233 1 F6 2 Q3 R122 1 04 1 D6 C164 1 B3 1 4 C271 1 06 2 72 L236 1 H6 2 M2 R123 1 84 1 H7 C165 1 B3 1 M4 C272 1 86 2 U2 L239 TES 2R2 R124 1 84 _ 1 H8 C167 1 K3 1 P3 C273 1 86 2V2 L241 1 06 2 S3 R125 1 B4 1 H8 C169 1 K3 1 P3 C294 1 D6 2 R1 L243 1 06 2 T3 R126 1 83 _ 1 H6 C171 1K3 1 03 C295 1D6 2 R1 L245 1 07 2 2 R127 1A3 1 H7 C173 1 04 1 B0 C297 1 05 218 L247 1 06 2 U3 R128 1 A3 1 37 C174 1 E4 1 B0 C298 1 06 2 18 L248 1 07 2 U2 R129 1 B4 1 J9 C176 1 D4 1 E0 D101 1 83 1 H5 L249 1 86 2 V3 R130 1 84 1 J8 C178 1 04 1 FO D101 1 83 1 G5 L264 1 06 2 18 R131 1 A3 1 37 C179 1 03 1 G2 D103 1 P7 1 59 LINK1 1 D3 1 LO R132 1B5 1 J8 C180 1 E2 1 H0 D105 1 02 1 J2 LINK2 1 P6 1 D1 R133 1 A3 1 K7 C181 1 03 1 G0 D105 1 62 1 J2 LINK201 1 05 2 F8 R134 1 83 1 K6 C182 1 D3 1 Hi D107 1P7 O 1 K5 P101 1 A5 1 R9 R135 1 P7 1 KO C184 1 04 1 G0 D109 1 P6 145 P103 1K3 1 R0 R136 1 A3 1 K7 C185 1D2 1 1 D111 1 C2 1 Mi P105 1 K2 1 R0O R137 1 83 1 K6 C186 1 E2 1 J0 D111 1 C2 1 Mi P201 1 86 2 V3 R138 1 84 1 L6 Copyright TEL 30 04 98 IPN 220 01404 03 D5 3 10 T839 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R141 1 E3 1 C6 R223 1 F2 2 P2 R142 1 E3 1 E7 R224 1 04 2 G7 R143 1 E4 1 F6 R225 1 E6 2 R3 R144 1 03 1 F6 R228 1 E4 2 G7 R145 1
68. C735 015 22470 01 CAP CER 0805 47P 5 NPO 50V C650 002 10012 32 SMD DS1232LPS 2 LP RESET8W DOG C736 015 22470 01 CAP CER 0805 47P 5 NPO 50V C700 539 00010 41 TCXO 12 8MHZ 2 5PPM 30 70C C740A 015 24100 08 CAP CER 0805 1N 10 X7R 50V C710 002 74910 04 S IC SMD 74HCU04 6X INV C740B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C740 002 14519 10 S IC MC145191F SMD SYNTH C741A 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C750 002 10330 78 S IC MC33078D 2X AMP LO NOISE C741B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C810 002 08951 20 S IC AT89C51 PLCC44 MIC 12MHZ C742A 015 06100 08 CAP CER 1206 100N 10 X7R 50V C820 002 12416 00 S IC SMD AT24C16N 10SC EEPROM C742B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C830 002 10003 24 S IC SMD 324 4X O AMP SO14 C743 015 22470 01 CAP CER 0805 47P 5 NPO 50V C840 002 10040 53 S IC 4053 SMD 3X 2CH M PLEXR C745 015 24100 08 CAP CER 0805 1N 10 X7R 50V C850 002 10003 24 S IC SMD 324 4X O AMP SO14 C750 025 08100 03 CAP 10M 35V 20 TANT 5MM L S C757 015 25100 08 CAP CER 0805 10N 10 X7R 50V L230 056 00021 02 IND FXD 100UH AX C759 015 25100 08 CAP CER 0805 10N 10 X7R 50V L310 056 00021 07 IND FXD 33UH AX C761 015 25100 08 CAP CER 0805 10N 10 X7R 50V L320 056 00021 09 IND FXD 820NH AX 4X9 C762 014 08220 01 L CAP TANT 22UF10V276MSER L330 050 00016 58 COIL TAIT 658 2MH IF 7 5 7 5 C764 015 25100 08 CAP CER 0805 10N 10 X7R 50V L340 050 00016 58 COIL TAIT 658 2MH IF 7 5 7 5 C765 014 07470 00 CAP TANT CHIP
69. C790 1 63 7 Q0 C241 1 B4 2 M6 C359 2 E5 3 G1 C638 1 M6 6 P5 C792 1 63 7 Q0 C242 1 B3 2 L6 C362 2 F4 3 G2 C640 1 M5 6 R6 C810 1 L3 8 K8 C243 1 B4 2 P6 C365 2 F4 3 G2 C655 1 M4 6 C1 C812 1 L2 8 F5 C245 1 05 2 A4 C368 2 F5 3 H2 C660 1 15 6 K1 C813 1 K2 8 H5 C247 1 D4 2 B4 C370 2 F5 3 K3 C665 1 L5 6 K1 C822 1 M2 8 B2 C249 1 D4 2 C4 C373 1 E6 3 L4 C670 1 L6 6 L1 C823 1 M3 8 C2 C251 1 C3 2 E4 C376 1 F8 3 M4 C673 1 L5 6 P2 C824 1 M2 8 C1 C253 1 D3 2 E3 C379 2 F5 3 K3 C677 1 L6 6 P1 C826 1 N3 8 00 C255 1 D3 2 D2 C382 2 E5 3 12 C681 1 M5 6 R3 C827 1 N3 8 DO C257 1 D3 2 F2 C385 1 F6 3 P4 C684 1 M5 6 R3 C828 1 N3 8 E0 C259 1 06 2 32 C388 2 F7 3 04 C687 1 L6 6 Q1 C830 1 N3 8 R1 C260 1 D8 2 GO C391 2 E6 3 P2 C690 1 L6 6 R1 C838 1 N4 8 FO C261 1 C6 2 K2 C394 2 E6 3 P3 C693 1 L6 6 R1 C841 1 N2 8 K2 C263 1 D6 2 L3 C396 2 E6 3 R3 C700 1 K4 7 A8 C844 1 M2 8 L2 C265 1 D5 2 N4 C403 2 H8 4 B4 C703 1 J3 7 B7 C910 2 P8 9 E4 C267 1 08 2 P3 C406 2 H8 4 04 C705 1 J3 7 B7 C920 2 P7 9 F4 8 0269 1 08 2 P3 C409 2 J7 4 D5 C706 1 J2 7 B5 C930 2 P7 9 G4 C271 1 C8 2 Q3 C412 2 47 4 D5 C707 1 K4 7 08 C940 2 P7 9 H4 C273 1 08 2 04 C415 2 K8 4 E4 C708 1 J2 7 C9 C950 2 P6 9 J4 C275 1 D3 2 E1 C418 2 K7 4 E4 C709 1 K4 7 D9 C277 1 04 2 G1 C421 2 K7 4 F4 C710 1 J3 7 E8 CV451 1 M8 4 K4 C279 1 B4 2 G1 C424 2 N7 4 E6 C712 1 H2 7 E7 C281 1 B5 2 J1 C427 1 N7 4 F6 C713 1 H2 7 E6 D111 1 P4 1 R1 C283 1 B5 2 KO C430 1 M7 4 F5 C720 1 J3 7 F8 D205 1 B2 2 D9 C285 1 D7 2 LO C433 2 M7 4 G5 C722 1 J4
70. CAP 1206 CHIP NPO 10nF 25V PL210 240 00020 59 HEADER 3 W 1 R PCB MTG C816 015 25100 08 CAP CER 0805 10N 10 X7R 50V PL220 240 00020 59 HEADER 3 W 1 R PCB MTG C818 015 25100 08 CAP CER 0805 10N 10 X7R 50V PL230 240 00020 63 HEADER 4 W X1R PCB MTG C819 015 22330 01 CAP CER 0805 33P 5 NPO 50V PL240 240 00020 58 HEADER 5 WX1 R PCB MTG C820 015 23220 01 CAP CER 0805 220P 5 NPO 50V PL250 240 00020 59 HEADER 3 W 1 R PCB MTG C822 015 25220 08 CAP CER 0805 22N 10 X7R 50V PL260 240 00020 59 HEADER 3 W 1 R PCB MTG C824 015 25470 08 CAP CER 0805 47N 10 X7R 50V PL270 240 00020 59 HEADER 3 W 1 R PCB MTG C826 015 05100 07 CAP 1206 CHIP NPO 10nF 25V C828 015 05100 07 CAP 1206 CHIP NPO 10nF 25V Q210 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C830 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q220 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C832 016 07100 01 CAP EL 6X4 1M 20 50V Q230 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C833 015 25220 08 CAP CER 0805 22N 10 X7R 50V Q240 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C834 015 25100 08 CAP CER 0805 10N 10 X7R 50V Q245 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C836 015 05100 07 CAP 1206 CHIP NPO 10nF 25V Q250 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C837 015 05100 07 CAP 1206 CHIP NPO 10nF 25V Q255 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C838 015 05100 07 CAP 1206 CHIP NPO 10nF 25V Q260 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C840 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q270 000 100
71. CAP TANT 22UF10V276MSER L425 052 08130 15 COIL A W 1 5T 3 0MM HOR 0 8MM C764 015 25100 08 CAP CER 0805 10N 10 X7R 50V L440 065 00010 08 BEAD FERR 483 3 0 7 10MM RED C765 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM L445 065 00010 04 BEAD FERR F8 4X2X5MM C767 015 24100 08 CAP CER 0805 1N 10 X7R 50V L450 065 00010 01 BEAD FERR 3B 6 HOLE C769 015 24100 08 CAP CER 0805 1N 10 X7R 50V L455 052 08140 15 COIL A W 1 5T 4 0MM HOR 0 8MM C770 014 08220 01 L CAP TANT 22UF10V276MSER L465 052 08130 15 COIL A W 1 5T 3 0MM HOR 0 8MM C772 014 08220 01 L CAP TANT 22UF10V276MSER L470 052 08140 25 COIL A W 2 5T 4 0MM HOR 0 8MM C774 022 06330 05 CAP METAL PPS 330N 10 63V 5MM L475 056 00021 01 IND FXD 1 5UH AX C776 015 25150 08 CAP CER 0805 15N 10 X7R 50V L480 052 08140 25 COIL A W 2 5T 4 0MM HOR 0 8MM C782 015 24100 08 CAP CER 0805 1N 10 X7R 50V L485 056 00021 01 IND FXD 1 5UH AX C784 015 24100 08 CAP CER 0805 1N 10 X7R 50V L490 056 00021 01 IND FXD 1 5UH AX C786 015 06100 08 CAP CER 1206 100N 10 X7R 50V L495 056 00021 01 IND FXD 1 5UH AX C788 015 24100 08 CAP CER 0805 1N 10 X7R 50V L750 056 10068 00 IND FXD SMD 68NH 3 2 2 5 1 6 C790 015 24100 08 CAP CER 0805 1N 10 X7R 50V L910 052 08135 45 COIL A W 4 5T 3 5MM HOR 0 8MM C792 015 24100 08 CAP CER 0805 1N 10 X7R 50V L920 052 08155 25 COIL A W 2 5T 5 5MM HOR 0 8MM C810 015 25470 08 CAP CER 0805 47N 10 X7R 50V L930 052 08155 25 COIL A W 2 5T 5 5MM HOR 0 8MM C812 015 23100 01 CAP CER 0805 100P 5 NPO 50V L940 052 08135 45
72. CAP TANT BEAD 10M 10 16V C611B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C243 015 24100 08 CAP CER 0805 1N 10 X7R 50V C623 015 24100 08 CAP CER 0805 1N 10 X7R 50V C245 015 23150 01 CAP CER 0805 150P 5 NPO 50V C625 020 09470 07 CAPEL470M16V20 V 8 20 3 5L ESR C247 015 23150 01 CAP CER 0805 150P 5 NPO 50V C626 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C249 015 24100 08 CAP CER 0805 1N 10 X7R 50V C628 015 24100 08 CAP CER 0805 1N 10 X7R 50V C251 015 24100 08 CAP CER 0805 1N 10 X7R 50V C630 015 06100 08 CAP CER 1206 100N 10 X7R 50V C253 015 24100 08 CAP CER 0805 1N 10 X7R 50V C631A 015 06100 08 CAP CER 1206 100N 10 X7R 50V C255 015 24100 08 CAP CER 0805 1N 10 X7R 50V C634 025 08100 02 CAP TANT BEAD 10M 10 16V C257 015 22470 01 CAP CER 0805 47P 5 NPO 50V C636 015 06100 08 CAP CER 1206 100N 10 X7R 50V C259 015 25470 08 CAP CER 0805 47N 10 X7R 50V C638 015 24100 08 CAP CER 0805 1N 10 X7R 50V C260 015 06100 08 CAP CER 1206 100N 10 X7R 50V C640 015 24100 08 CAP CER 0805 1N 10 X7R 50V C261 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C655 015 24100 08 CAP CER 0805 1N 10 X7R 50V C263 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C660 015 06100 08 CAP CER 1206 100N 10 X7R 50V C265 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C665 020 58100 03 CAP ELE Al RDL 10M 50V 5X11MM C267 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C670 025 07330 01 CAP TANT BEAD 3M3 35V amp C269 10 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C673 015 24470 08 CAP CER 0805 4N7 10 X7R 50V
73. CER 0805 10N 10 X7R 50V C782 015 24100 08 CAP CER 0805 1N 10 X7R 50V C336 015 24100 08 CAP CER 0805 1N 10 X7R 50V C784 015 24100 08 CAP CER 0805 1N 10 X7R 50V C338 015 25220 08 CAP CER 0805 22N 10 X7R 50V C786 015 06100 08 CAP CER 1206 100N 10 X7R 50V C340 015 24100 08 CAP CER 0805 1N 10 X7R 50V C788 015 24100 08 CAP CER 0805 1N 10 X7R 50V C342 015 06100 08 CAP CER 1206 100N 10 X7R 50V C790 015 24100 08 CAP CER 0805 1N 10 X7R 50V C344 015 24100 08 CAP CER 0805 1N 10 X7R 50V C792 015 24100 08 CAP CER 0805 1N 10 X7R 50V C346 015 24100 08 CAP CER 0805 1N 10 X7R 50V C810 015 25470 08 CAP CER 0805 47N 10 X7R 50V C349 015 24100 08 CAP CER 0805 1N 10 X7R 50V 0812 015 23100 01 CAP CER 0805 100P 5 NPO 50V C350 015 24100 08 CAP CER 0805 1N 10 X7R 50V C813 015 24100 08 CAP CER 0805 1N 10 X7R 50V C353 015 24100 08 CAP CER 0805 1N 10 X7R 50V C822 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C356 015 23150 01 CAP CER 0805 150P 5 NPO 50V C823 015 25220 08 CAP CER 0805 22N 10 X7R 50V C359 015 24100 08 CAP CER 0805 1N 10 X7R 50V C824 015 25470 08 CAP CER 0805 47N 10 X7R 50V C362 015 24100 08 CAP CER 0805 1N 10 X7R 50V C826 015 23220 01 CAP CER 0805 220P 5 NPO 50V C365 015 22330 01 CAP CER 0805 33P 5 NPO 50V C827 015 22330 01 CAP CER 0805 33P 5 NPO 50V C828 015 25100 08 CAP CER 0805 10N 10 X7R 50V 30 04 98 Copyright TEL IPN 220 01390 02 M830 00 T837 PCB Infor
74. CER 0805 47P 5 NPO 50V C340A 025 08100 03 CAP 10M 35V 20 TANT 5MM L S C219 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C340B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C221 015 24100 08 CAP CER 0805 1N 10 X7R 50V C344 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C222 020 08100 04 CAP ELE RA 10M 16V 4X7MM C345 015 22330 0 CAP CER 0805 33P 5 NPO 50V C223 015 06100 08 CAP CER 1206 100N 10 X7R 50V C347 015 22330 0 CAP CER 0805 33P 5 NPO 50V C225 015 06100 08 CAP CER 1206 100N 10 X7R 50V C348 025 08100 03 CAP 10M 35V 20 TANT 5MM L S C227 015 23100 01 CAP CER 0805 100P 5 NPO 50V C349 015 25100 08 CAP CER 0805 10N 10 X7R 50V C229 020 08100 04 CAP ELE RA 10M 16V 4X7MM C351 015 06100 08 CAP CER 1206 100N 10 X7R 50V C231 020 08100 04 CAP ELE RA 10M 16V 4X7MM C353 015 06100 08 CAP CER 1206 100N 10 X7R 50V C233 020 08100 04 CAP ELE RA 10M 16V 4X7MM C355 015 25470 08 CAP CER 0805 47N 10 X7R 50V C235 015 24100 08 CAP CER 0805 1N 10 X7R 50V C357 015 23150 0 CAP CER 0805 150P 5 NPO 50V C237 015 24100 08 CAP CER 0805 1N 10 X7R 50V C359 015 06100 08 CAP CER 1206 100N 10 X7R 50V C238 015 06100 08 CAP CER 1206 100N 10 X7R 50V C361 015 06100 08 CAP CER 1206 100N 10 X7R 50V C239 020 09100 03 CAP ELE RA 100M 16V 8X11MM C363 015 22150 0 CAP CER 0805 15P 5 NPO 50V C240A 015 24100 08 CAP CER 0805 1N 10 X7R 50V C365 015 25470 08 CAP CER 0805 47N 10 X7R 50V C240B 015 06100 08 CAP CER 1206 100N 10 X7R 50V C367 015 25100 08 CAP CER 0805 10N 10 X7R 50V C240C 020 09220 01
75. CV1 for a synthesiser loop voltage of 9V on the middle channel If there is no middle channel tune CV1 so that the chan nels are symmetrically placed around a loop voltage of 9V All channels should lie within the upper and lower limits of 13V and 5V respectively Do not attempt to program channels with a greater fre quency separation than the specified switching range of 8MHz 3 4 3 Output Power Adjustment T836 Only Connect an RF power meter to the output socket and key the transmitter Turn RV320 power adjust fully clockwise Tune CV451 output power trim for maximum output power and check that this is gt 30W Adjust RV320 for the required output power between 5 and 25W Readjust CV451 to reduce the supply current by up to 0 5A Copyright TEL 30 04 98 C3 6 T836 837 Initial Tuning amp Adjustment M830 00 3 4 4 Note 1 Note 2 Note 3 Two Point Modulation Adjustment In this and following sections deviation settings are given first for wide bandwidth sets followed bv settings in brackets for mid bandwidth sets and narrow bandwidth sets l The reference modulation and limiter adjustments are controlled by 256 step electronic potentiometers EPOTs which are adjusted via the Refer ence Modulation and Deviation settings in PGM800Win This allows the two point modulation and deviation settings to be adjusted for each chan nel To optimise the modulation response across t
76. DIODE SCHTTKY 18897 2 Q510 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D610 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q520 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D620 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q530 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D630 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q540 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D635 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 Q550 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D640 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q610 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D710 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q620 000 00012 15 S XSTR BD234 PNP AF PWR TO126 D720 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q630 000 50011 30 S XSTR Al BC557B PNP TO92 AF D730 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 Q660 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 D740 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 Q670 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D810 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 Q710 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS Q720 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C210 002 10003 24 S IC SMD 324 4X O AMP SO14 Q730 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C220 002 10126 70 S IC SMD DS1267S10K 2XDIG POT Q740 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C230 002 10003 24 S IC SMD 324 4X O AMP SO14 Q750 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C240 002 10040 53 S MC14053B SMD BREAK B4 MAKE Q760 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C250 002 0002
77. F 0805 150E 5 R416 036 14220 00 RES M F 0805 2K2 5 R262 036 14100 00 RES M F 0805 1K 5 R418 036 17100 00 RES M F 0805 1M 5 R264 036 15270 00 RES M F 0805 27K 5 R419 036 13470 00 RES M F 0805 470E 5 R265 036 13100 00 RES M F 0805 100E 5 R422 036 12100 00 RES M F 0805 10E 5 R266 036 15220 00 RES M F 0805 22K 5 R425 036 13180 00 RES M F 0805 180E 5 R267 036 16330 00 RES M F 0805 330K 5 R427 036 17100 00 RES M F 0805 1M 5 R269 036 14220 00 RES M F 0805 2K2 5 R428 036 12330 00 RES M F 0805 33E 5 R271 036 16100 00 RES M F 0805 100K 5 R432 036 13470 00 RES M F 0805 470E 5 R272 036 15470 00 RES M F 0805 47K 5 R435 036 12120 00 RES M F 0805 12E 5 R273 036 15150 00 RES M F 0805 15K 5 R438 036 13470 00 RES M F 0805 470E 5 R275 036 13100 00 RES M F 0805 100E 5 R441 036 17100 00 RES M F 0805 1M 5 R277 036 14560 00 RES M F 0805 5K6 5 R444 036 10000 00 RES M F 0805 ZERO OHM R278 036 16220 00 RES M F 0805 220K 5 R447 036 17100 00 RES M F 0805 1M 5 R280 036 16100 00 RES M F 0805 100K 5 R453 036 13470 00 RES M F 0805 470E 5 R281 036 14470 00 RES M F 0805 4K7 5 R456 036 12120 00 RES M F 0805 12E 5 R282 036 16100 00 RES M F 0805 100K 5 R459 036 13470 00 RES M F 0805 470E 5 R284 036 13100 00 RES M F 0805 100E 5 R464 036 12470 00 RES M F 0805 47E 5 R285 036 15470 00 RES M F 0805 47K 5 R510 036 13680 00 RES M F 0805 680E 5 R287 036 15100 00 RES M F 0805 10K 5 R515 036 12560 00 RES M F 0805 56E 5 R288 036 14470 00 RES M F 0805 4K7 5 R555 036
78. F 0805 CHIP 1K 1 R750 036 12220 00 RES M F 0805 22E 5 R888 036 14820 10 RES M F 0805 8K2 1 R752 036 12220 00 RES M F 0805 22E 5 R889 036 16100 00 RES M F 0805 100K 5 R753 036 17100 00 RES M F 0805 1M 5 R890 036 16150 00 RES M F 0805 150K 5 R754 036 14100 00 RES M F 0805 1K 5 R891 036 16100 00 RES M F 0805 100K 5 R756 036 16470 00 RES M F 0805 470K 5 R892 036 16330 00 RES M F 0805 330K 5 R757 036 16470 00 RES M F 0805 470K 5 R894 036 14470 00 RES M F 0805 4K7 5 R758 036 14120 00 RES M F 0805 1K2 5 R895 036 15100 00 RES M F 0805 10K 5 R759 036 13330 00 RES M F 0805 330E 5 R897 036 15100 00 RES M F 0805 10K 5 R760 036 13180 00 RES M F 0805 180E 5 R898 036 16470 00 RES M F 0805 470K 5 R762 036 13100 00 RES M F 0805 100E 5 R910 036 15100 00 RES M F 0805 10K 5 R763 036 13100 00 RES M F 0805 100E 5 R765 036 13680 00 RES M F 0805 680E 5 RL210 237 00010 22 RELAY 12V DPDT 8PIN DIL PCB MT R766 036 14100 00 RES M F 0805 1K 5 R767 036 13680 00 RES M F 0805 680E 5 RV205 040 05100 22 POT 10K LOG DUAL PCB 6 OD SFT R769 036 13180 00 RES M F 0805 180E 5 RV210 040 05100 23 POT 10KLOG PCB 15MM SLOT SFT R771 036 14820 00 RES M F 0805 8K2 5 RV220 042 05100 06 RES PRE 10K CAR 6MM FLAT R772 036 15220 00 RES M F 0805 22K 5 RV230 040 05100 21 POT 10K LIN PCB 15MM SLOT SFT R774 036 14820 00 RES M F 0805 8K2 5 RV235 042 05100 06 RES PRE 10K CAR 6MM FLAT R775 036 14560 00 RES M F 0805 5K6 5 RV320 042 05470 06 RES PRE 47K CAR 6MM FLAT T ADJ
79. IC201 345 00040 16 23 SCRW M3X20MM P POZ ST BZ 012 04150 01 22 CAP CER F THRU 1N5 NO LEAD 349 00010 59 17 SCRW 6 32 X 3 8 P PH T T ZP 045 06100 05 16 ASSY 100K NTC FOR MODULE 349 00020 07 7 SCRW 4 40 X 5 16 P POZ T T BLK R219 349 00020 09 12 SCRW T T 4 40X3 8 IN P POZ BLK 051 00006 02 SOLDER SPRING 1 3MM A4M1877 Support for front panel LED solder joints 349 00020 36 37 LIM SCREW TT M3X8m PANTORX BLK 051 00641 01 3 COAX SEMI RIG N TYPE EXTN 352 00010 29 36 NUT M4 NVLOC HEX 051 00642 01 28 COAX SEMI RIG N TYPE EXTN 353 00010 10 11 WSHR M3 FLAT 7MMX0 6MM ST BZ 065 00010 13 21 BEAD FER 7D 1 9X0 9X3 8 356 00010 03 24 TAG SOLDER 3MM LONG M614 3 2 201 00030 02 WIRE T C 7 0 2 PVC RED 356 00010 05 15 TAG SOLDER 4MM LONG M6144 4 2 Front panel LEDs 360 00010 41 34 BUSH SHORTY BLK 201 00030 10 WIRE T C 7 0 2 PVC BLACK Front panel LEDs 362 00010 07 8 GASKET SIL INSULATING TO 220 201 00050 25 AUTO 154 RED 41 0 3 PVC 362 00010 13 10 BUSH INSULATING 1 1MM TOP HAT DC from D range PCB 362 00010 33 33 GROMMET LED MTG 3MM 201 00050 26 AUTO 154 BLACK 41 0 3 PVC DC from D range PCB 365 00100 20 LABEL WHITE S A 28X11MM 206 00010 11 COAX 50 OHM RG316 U PTFE 365 01391 01 LABEL 30X10 8 T MARK VOID Coax from BNC connector to SK203 365 01538 00 LABEL WARNING 60W PWR CLAMP 219 02591 00 18 LOOM RIBBON 8 WAY FOR PA 369 00010 14 TIE CABLE NYLON 100X2 6MM 219 02592 00 CABLE ASSY RG223 U N TO BNC Exciter PA connecting cable 399 00010 56 BAG PLASTIC 200X250MM 2
80. IPN 001 00011 60 to MR2520L IPN 001 00012 90 to provide overvoltage transient sup pression 750087 88 89 90 91 92 Changed from 74HCV04 IPN 002 74910 04 to 74HC04 IPN 002 74900 04 to increase the gain of the TCXO buffer 710312 Changed from 27k 036 15270 00 to 18k 036 15180 00 to improve cyclic keying 8 standby current 710059 Changed from 47k 036 15470 00 to 33k 036 15330 00 to improve cyclic keying 8 standby current 710059 Changed from 33k 036 15330 00 to 56k 036 15560 00 for ACP IETS 300 113 compliance 710158 Changed from 82k 036 15820 00 to 47k 036 15470 00 to improve cyclic keying 8 standby current 710059 Changed from 47k 036 15470 00 to 220k 036 16220 00 to improve cyclic keying 8 standby current 710059 Changed from 47k 036 15470 00 to 22k 036 15220 00 to improve cyclic keying 8 standby current 710059 Changed from 22k 036 15220 00 to 47k 036 15470 00 for ACP IETS 300 113 compliance 710158 Changed from 220 IPN 036 12220 00 to 0Q IPN 036 10000 00 to improve hum 8 noise performance 710837 839 840 841 Changed to IPN 042 05470 07 47k preset because IPN 042 05470 06 no longer available 710793 96 97 98 1B00 ch ssis replaced DY JOS GENN New chassis and lid tooling introduced incorporating mechanical improvements and better RF shielding 750027 750028 8 750029 Note that the new lids should be used oniv with the new chassis T800 top lid replaced by 312 01052 02
81. IPN 220 01404 03 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C187 1 D3 1 K1 D113 1 F7 1 Q2 PL101 1 L3 1 02 Note C188 1 02 1 11 D201 11 6 2 Q3 Q101 1 08 d C9 C189 1 C3 1 M1 D202 1 D4 2 18 Q103 1 B3 1 E8 This grid reference index C190 ECS 1 N1 D202 1 D4 2 18 Q105 1 04 1 D7 covers both the T838 and 5192 1 B2 1 N1 D203 1 E6 2 R2 Q107 1 B5 1 F8 T839 and is reproduced in Giss te rot RARE oa Zea both PCB Information sec S201 1 37 215 IC101 1 D4 1 B8 Q113 1 A3 1 K6 tions for your convenience C202 1 43 _ 2 B8 IC101 1 D4 1 C0 Q115 1 A3 1 17 C203 1 7 2 01 IC101 1 D4 1 NO Q117 1 84 1 K8 C101 1E4 1 B8 C204 1 M6 2 E1 IC103 1 04 1 D4 Q119 1 84 1 L6 C103 1 E4 1 B9 C205 1 L7 2 15 IC103 1 04 1 J8 Q121 1 83 1 L8 C105 1 83 1 D8 C206 1 P6 2 C1 IC103 1 C4 1 FO Q123 1 63 _ 1 E7 C107 1B3 1 D9 C207 1 K7 2 K5 IC103 1 04 1 J5 Q125 1E3 1 F7 C109 1 83 1 D8 C208 1 48 _ 2 08 IC103 1 04 1 E3 Q127 1 D3 _ 1 67 C111 1 C4 1 D8 C209 1 05 2 D8 IC105 1 03 1 MO Q129 1 84 1 14 C113 1 85 1 F8 C210 1 C5 2 E8 IC105 1 03 1 PO Q
82. K3 Q330 2 E4 3 D4 R251 1 04 2 G4 R364 2 F4 3 02 L365 1 E5 3 L3 Q335 2 E4 3 E6 R253 1 06 2 J2 R366 2 F4 3 01 L370 1 E5 3 M2 Q340 2 E5 3 G6 R254 1 06 2 K3 R368 2 F4 3 DO L375 1 E6 3 M4 Q345 2 E5 3 H6 R255 1 67 2 K2 R370 2 F4 3 E1 L380 1 F6 3 N4 Q365 1 F5 3 32 R256 1 D8 2 M3 R372 2 E5 3 G1 L385 1 F6 3 N3 Q370 1 E5 3 N3 R257 1 D8 2 N5 R374 2 F5 3 J2 L390 1 E6 3 R4 Q510 1 35 5 D1 R258 1 D8 2 N4 R376 2 F5 3 J2 L750 1 G4 7 RO Q520 1 35 5 H2 R259 1 D5 2 P4 R378 1 F5 3 J3 L910 1 P7 9 F4 Q530 1 35 5 HO R260 1 D8 2 N4 R380 1 F5 3 J4 L920 1 P7 9 G4 Q540 1 K5 5 L2 R262 1 D8 2 N3 R382 1 F5 3 J4 Q550 1 K5 5 10 R263 1 08 2 P3 R384 2 E6 3 L4 P100 1 P6 1 R8 Q610 1 L6 6 E8 8R264 1 C8 2 P3 R386 2 E6 3 L2 P150 1 P2 1 04 Q620 1 N6 6 P8 8 R265 1 08 2 P3 R388 1 F6 3 M4 P160 1 P2 1 04 Q630 1 M6 6 P5 amp R266 1 08 2 P3 R390 1 E6 3 Q3 P170 1 P2 1 Q3 Q660 1 15 6 N1 R267 1 08 2 R2 R392 1 E6 3 P2 P204 1 D1 2 A8 Q670 1 L6 6 Q2 R268 1 D2 2 C0 R394 1 E6 3 Q3 P208 1 D1 2 A8 Q710 1 33 7 K8 R269 1 02 2 01 R396 1 E6 3 Q2 P210 1 D6 2 A7 Q720 1 J3 7 K8 R270 1 02 2 D1 R502 1 K6 5 K9 P211 1 D5 2 A7 Q730 1 H3 7 N8 R271 1 03 2 E1 R505 1 K6 5 18 P212 1 D6 2 A6 Q740 1 H3 7 N8 R272 1 C4 2 F2 R510 1 K6 5 L7 P215 1 D4 2 A2 Q750 1 G4 7 F3 R273 1 B5 2 G2 R515 1 H6 5 J5 P217 1 D4 2 A2 Q760 1 H3 7 H3 R274 1 C4 2 G1 R520 1 35 5 C1 P219 1 D2 2 A1 Q770 1 H3 7 H1 R275 1 04 2 HO R525 1 J5 5 D1 P225 1 D2 2 A0 Q775 1 H3 7 K3 R277 1 B5 2 J1 R530 1 J5 5 DO P230 1 C5 2 BO Q780 1 H3 7 K3 R278 1 B5 2 JO R535 1 J5
83. M6 6 Q8 C788 1 G3 7 NO C240C 1 05 2 R8 C371 1 E5 3 G3 C626 1 M6 6 R8 C790 1 G3 7 Q0 C249 1 B5 2 Q7 C373 1 E6 3 G1 C628 1 M6 6 R8 C792 1 G4 7 RO C251 2 A5 2 R7 C375 1 E5 3 H2 C630 1 M5 6 K4 C810 1 L4 8 K8 C253 1 08 2 G5 C376 2 E7 3 J3 C631A 1 M5 6 M6 C812 1 K2 8 E5 C255 2 B7 2 L2 C377 2 E7 3 K3 C631B 1 N5 6 M6 C813 1 33 8 H5 C257 2 B6 2 M2 C381 2 E6 3 K3 C637 1 M6 6 P5 C814 1 L2 8 Q4 C259 2 B6 2 M3 C383 2 E6 3 J4 C640 1 M5 6 R5 C815 1 N3 8 B2 C260A 2 B6 2 P4 C385 2 E7 3 L2 C651 1 M5 6 M4 C816 1 N3 8 B2 C260B 2 B6 2 P4 C390 1 E6 3 L3 C658 1 M5 6 J1 C818 1 N3 8 C1 C260C 1 B6 2 P4 C391 2 E7 3 N1 C660 1 15 6 K1 C819 1 N3 8 D1 C261 1 06 2 N2 C392 2 E7 3 N3 C665 1 15 6 K1 C820 1 N4 8 E1 C262 1 B5 2 P3 C393 2 E7 3 N2 C670 1 L6 6 L1 C822 1 N3 8 D2 C264 2 B5 2 P2 C394 2 E7 3 N3 C673 1 L5 6 P2 C824 1 N3 8 D2 C266 1 D2 2 R3 C395 2 E8 3 P3 C677 1 M6 6 P1 C826 1 N3 8 DO C268 1 D3 2 R3 C397 2 E8 3 Q2 C681 1 M5 6 R3 C828 1 N3 8 DO C270 2 B8 2 E3 C399 2 E8 3 R2 C684 1 M6 6 R3 C830 1 M4 8 F1 C272 2 B8 2 D1 C402 2 N8 4 B4 C687 1 L6 6 Q1 C832 1 M3 8 G2 C274 2 B8 2 E1 C404 2 N8 4 B5 C690 1 L6 6 R1 C833 1 M4 8 G1 C276 2 04 2 BO C406 2 N8 4 B5 C693 1 L6 6 R1 C834 1 M3 8 H2 C278 2 04 2 C0 C408 2 M8 4 B4 C700 1 J4 7 A8 C836 1 M3 8 GO C280 2 04 2 F1 C410 2 M8 4 04 C702 1 J4 7 B8 C837 1 M3 8 GO C286 2 B8 2 F1 C412 2 M8 4 C5 C703 1 J3 7 B7 C838 1 N4 8 HO C301 2 F8 3 B7 C414 2 M8 4 04 C705 1 J3 7 B7 C840 1 M2 8 K1 C303 2 F8 3 B6 C416 2 M8 4 D4 C707 1 J3 7 B5 C842 1 N2 8 LO C305
84. P810 1 L3 8 A5 R217 1 A4 2 M8 R314 2 F8 3 D7 10720 1 33 7 JO P820 1 L4 8 M8 R218 1 A4 2 N7 R316 2 F8 3 E8 IC720 1 J3 7 N7 P825 1 L4 8 M8 R219 1 B4 2 N8 R318 2 F8 3 E9 IC720 1 J3 7 M7 P830 1 L4 8 M8 R221 1 B7 2 R7 R320 2 F8 3 G9 IC720 1 J3 7 K7 P835 1 14 8 M7 R223 1 B4 2 K6 R322 2 F8 3 H8 10720 1 33 7 F8 P840 1 L4 8 M7 R224 1 C4 2 K5 R324 2 F7 3 J8 IC720 1 J3 7 KO R225 1 B4 2 L5 R326 2 F7 3 J7 IC730 1 J4 7 H8 PL100 1 P3 1 FO R226 1 B4 2 14 R328 2 F7 3 K8 10730 1 J4 7 G7 PL205 1 05 2 J8 R227 1 B4 2 M4 R330 2 F8 3 M8 10740 1 H2 7 D1 PL210 1 03 2 H4 R229 1 B4 2 M7 R332 2 E4 3 05 IC750 1 H4 7 N3 PL215 1 04 2 K3 R230 1 B4 2 M6 R334 2 E4 3 D6 IC750 1 H4 7 H5 PL220 1 04 2 H2 R231 1 B4 2 M6 R336 2 E4 3 D5 IC750 1 H4 7 Q7 R232 1 B4 2 M5 R338 2 E4 3 D4 IC820 1 14 8 N2 Q210 1 C6 2 J8 R233 1 B4 2 M6 R340 2 E5 3 D5 1C830 1 N3 8 J0 Q220 1 B3 2 L7 R235 1 B4 2 P6 R342 2 E4 3 F5 1C830 1 N3 8 Q1 Q230 1 A4 2 M8 R237 1 B7 2 Q7 R344 2 E5 3 F6 1C830 1 N3 8 JO Q240 1 B7 2 Q7 R238 1 B7 2 R7 R346 2 E5 3 F6 1C830 1 N3 8 J1 Q250 1 B7 2 R5 R239 1 B8 2 R6 R348 2 E5 3 G5 1C830 1 N3 8 CO Q260 1 04 2 F3 R241 1 B8 2 Q6 R350 2 E5 3 H5 Q270 1 D2 2 D1 R242 1 B7 2 Q5 R352 2 E6 3 J6 L335 1 F4 3 E3 Q305 2 E7 3 B8 R244 1 06 2 A5 R354 2 E5 3 J6 L340 1 E4 3 F2 Q310 2 F8 3 G8 R245 1 04 2 D4 R356 2 E6 3 K6 L345 1 F5 3 H2 Q315 1 F8 3 J8 R247 1 03 2 E4 R359 1 F5 3 B2 L350 1 F5 3 H2 Q320 2 E5 3 A5 R248 1 03 2 E3 R360 1 F4 3 02 L355 1 F5 3 J3 Q325 2 E4 3 05 R249 1 04 2 F3 R362 1 F4 3 02 L360 1 F5 3
85. PCB Information C6 3 7 Ref Var IPN Description Ref Var IPN Description R842 036 14220 00 RES M F 0805 2K2 5 R843 036 14220 00 RES M F 0805 2K2 5 R845 036 13470 00 RES M F 0805 470E 5 R846 036 13470 00 RES M F 0805 470E 5 R847 036 13470 00 RES M F 0805 470E 5 R848 036 14470 00 RES M F 0805 4K7 5 R849 036 13470 00 RES M F 0805 470E 5 R850 036 13470 00 RES M F 0805 470E 5 R853 036 14470 00 RES M F 0805 4K7 5 R854 036 14470 00 RES M F 0805 4K7 5 R855 036 14470 00 RES M F 0805 4K7 5 R859 036 16150 00 RES M F 0805 150K 5 R861 036 16150 00 RES M F 0805 150K 5 R863 036 16150 00 RES M F 0805 150K 5 R865 036 16100 00 RES M F 0805 100K 5 R867 036 16100 00 RES M F 0805 100K 5 R871 036 15470 00 RES M F 0805 47K 5 R872 036 14470 00 RES M F 0805 4K7 5 R873 036 15330 00 RES M F 0805 33K 5 R874 036 14470 00 RES M F 0805 4K7 5 R875 036 15470 00 RES M F 0805 47K 5 R876 036 14470 00 RES M F 0805 4K7 5 R877 036 14470 00 RES M F 0805 4K7 5 R879 036 15100 00 RES M F 0805 10K 5 RV210 040 05100 23 POT 10K LOG PCB 15MM SLOT SFT RV220 042 05470 06 RES PRE 47K CAR 6MM FLAT T ADJ RV805 042 05220 07 RES PRE 22K CAR 6MM FLAT D ADJ SK205 240 02020 05 SKT STEREO PHONE JACK PCB MTG SK310 240 02100 44 SKT COAX MINI JACK PCB MT ANG SK420 240 02100 44 SKT COAX MINI JACK PCB MT ANG SK501 240 04021 77 SKT JACK 1 3 PCB MT 64W SK502 240 04021 77 SKT JACK 1 3 PCB MT 64W SK503 240 04021 77 SKT JACK 1 3 PCB MT 64W SK504 240 04021 7
86. PRE 47K CAR 6MM FLAT T ADJ R720 036 15390 00 RES M F 0805 39K 5 RV310 042 04220 06 RES PRE 2K2 CAR 6MM FLAT R721 036 15100 00 RES M F 0805 10K 5 RV320 042 05100 06 RES PRE 10K CAR 6MM FLAT R722 036 15100 00 RES M F 0805 10K 5 RV330 042 06470 06 RES PRE 470 500K 25 6MM T ADJ R723 036 14270 00 RES M F 0805 2K7 5 R330A 036 13390 00 RES M F 0805 390E 5 R725 036 15390 00 RES M F 0805 39K 5 RV805 042 05220 07 RES PRE 22K CAR 6MM FLAT D ADJ R726 036 13100 00 RES M F 0805 100E 5 R727 036 15100 00 RES M F 0805 10K 5 SK205 240 02020 05 SKT STEREO PHONE JACK PCB MTG R728 036 15100 00 RES M F 0805 10K 5 SK310 240 02100 44 SKT COAX MINI JACK PCB MT ANG R742 036 13150 00 RES M F 0805 150E 5 SK420 240 02100 44 SKT COAX MINI JACK PCB MT ANG R743 036 13150 00 RES M F 0805 150E 5 SK501 240 04021 77 SKT JACK 1 3 PCB MT 64W R744 036 12220 00 RES M F 0805 22E 5 SK502 240 04021 77 SKT JACK 1 3 PCB MT 64W R746 036 12220 00 RES M F 0805 22E 5 SK503 240 04021 77 SKT JACK 1 3 PCB MT 64W R747 036 12220 00 RES M F 0805 22E 5 SK504 240 04021 77 SKT JACK 1 3 PCB MT 64W R748 036 15470 00 RES M F 0805 47K 5 SK505 240 04021 77 SKT JACK 1 3 PCB MT 64W R749 036 15470 00 RES M F 0805 47K 5 SK513 240 04021 77 SKT JACK 1 3 PCB MT 64W R750 036 12220 00 RES M F 0805 22E 5 SK522 240 04021 77 SKT JACK 1 3 PCB MT 64W R752 036 12220 00 RES M F 0805 22E 5 SK531 240 04021 77 SKT JACK 1 3 PCB MT 64W R753 036 17100 00 RES M F 0805 1M 5 SK532 240 04021 77 SKT JACK 1 3 PC
87. Q270 collector Opto Key 4 eying og can be used Pin 127 Pin 14 Pin 15 Figure 5 1 DC Loop Keying With Common Earth Where the receiver and transmitter or remote control are distant DC loop keying is provided by an isolated supply driver and detector because an earth cannot be relied on refer to Figure 5 2 Figure 5 3 amp Figure 5 4 D260 OPTO KEY a 2 3 5 kI 5 a i BAW56 4N25A D270 D270 OPTO KEY 8 SL204 1 3 a D260 3 1 OPTO KEY S L VOPAD OPTO KEY P219 OPTO KEY S L PAR BAVSR VOPAD R268 OPTO KEY 5555 100 OPTO KEY Figure 5 2 Isolated Constant Current Loop Current Detector Opto key input on T836 8 T837 Copyright TEL 30 04 98 G5 2 DC Line Keying M830 00 o o e G AR a E l J g if Figure 5 3 Isolated Loop Current Switch Unit 1 Long Line Unit 2 a i C Optional bridge to protect against Isolated sw polarity reversals Supply T223 only gt Figure 5 4 Typical System 30 04 98 Copyright TEL M830 00 HI Part H 1800 Ancillary Equipment This Part of the manual features a brief description of the major ancillaries that mav be used with T800 Series II equipment For a comprehensive list of available ancillarv equipment please contact vour nearest Tait Dealer or Customer Service Organisation Programming Kits General Ancillaries Paging External Freque
88. R168 036 15100 10 RES M F 0805 10K 1 R169 036 14100 00 RES M F 0805 1K 5 R170 036 14100 00 RES M F 0805 1K 5 R171 036 14100 00 RES M F 0805 1K 5 R172 036 15100 10 RES M F 0805 10K 1 R173 036 13470 00 RES M F 0805 470E 5 R174 036 13220 00 RES M F 0805 220E 5 R175 036 16220 00 RES M F 0805 220K 5 R176 036 15100 00 RES M F 0805 10K 5 R177 036 14470 00 RES M F 0805 4K7 5 R178 036 16100 00 RES M F 0805 100K 5 R179 036 15100 00 RES M F 0805 10K 5 R180 036 16150 00 RES M F 0805 150K 5 R181 036 14560 00 RES M F 0805 5K6 5 R182 036 16100 00 RES M F 0805 100K 5 R183 036 14470 00 RES M F 0805 4K7 5 R184 036 14100 00 RES M F 0805 1K 5 R185 036 03100 02 RES 100E 1206 200V 250MW RCO1 R186 036 13100 00 RES M F 0805 100E 5 R187 036 03150 03 RES 1218 PWR CHIP 150E 20 1W R188 036 13220 00 RES M F 0805 220E 5 R189 036 12100 00 RES M F 0805 10E 5 R190 036 12220 00 RES M F 0805 22E 5 R191 036 14100 10 RES M F 0805 CHIP 1K 1 R192 036 13220 10 RES 0805 220E 1 R193 036 12100 00 RES M F 0805 10E 5 R194 036 03220 03 RES 1218 PWR CHIP 220E 20 1W R195 036 14220 00 RES M F 0805 2K2 5 R196 036 13100 00 RES M F 0805 100E 5 R197 036 10000 00 RES M F 0805 ZERO OHM R201 036 03330 03 L RES 1218 PWR 330E 20 1W R202 036 02100 03 L RES 1218 PWR 10E 20 1W R203 036 02100 02 RES 10E 1206 200V 250MW RCO1 R204 036 03330 03 L RES 1218 PWR 330E 20 1W R205 036 02100 02 RES 10E 1206 200V 250MW RCO1 R207 036 15470 10
89. R229 1 B4 2 M7 R332 2 E4 3 05 IC740 1 H2 7 D1 R230 1 B4 2 M6 R334 2 E4 3 D6 IC750 1 H4 7 N3 Q210 1 06 2 J8 R231 1 B4 2 M6 R336 2 E4 3 D5 IC750 1 H4 7 H5 Q220 1 B3 2 17 R232 1 B4 2 M5 R338 2 E4 3 D4 IC750 1 H4 7 Q7 Q230 1 A4 2 M8 R233 1 B4 2 M6 R340 2 E5 3 D5 IC820 1 14 8 N2 Q240 1 B7 2 07 R235 1 B4 2 P6 R342 2 E4 3 F5 IC830 1 N3 8 JO Q250 1 B7 2 R5 R237 1 B7 2 Q7 R344 2 E5 3 F6 IC830 1 N3 8 Q1 Q260 1 04 2 F3 R238 1 B7 2 R7 R346 2 E5 3 F6 IC830 1 N3 8 JO Q270 1 D2 2 D1 R239 1 B8 2 R6 R348 2 E5 3 G5 IC830 1 N3 8 J1 Q305 2 E7 3 B8 R241 1 B8 2 06 R350 2 E5 3 H5 1C830 1 N3 8 CO Q310 2 F8 3 G8 R242 1 B7 2 Q5 R352 2 E6 3 J6 Q315 1 F8 3 J8 R244 1 C6 2 A5 R354 2 E5 3 J6 L335 1 F4 3 E3 Q320 2 E5 3 A5 R245 1 D4 2 D4 R356 2 E6 3 K6 L340 1 E4 3 F2 Q325 2 E4 3 C5 R247 1 D3 2 E4 R359 1 F5 3 B2 L345 1 F5 3 H2 Q330 2 E4 3 D4 R248 1 03 2 E3 R360 1 F4 3 02 L350 1 F5 3 H2 Q335 2 E4 3 E6 R249 1 04 2 F3 R362 1 F4 3 02 L355 1 F5 3 J3 Q340 2 E5 3 G6 R251 1 C4 2 G4 R364 2 F4 3 D2 L360 1 F5 3 K3 Q345 2 E5 3 H6 R253 1 C6 2 J2 R366 2 F4 3 D1 L365 1 E5 3 L3 Q365 1 F5 3 J2 R254 1 C6 2 K3 R368 2 F4 3 DO L370 1 E5 3 M2 Q370 1 E5 3 N3 R255 1 07 2 K2 R370 2 F4 3 E1 L375 1 E6 3 M4 Q510 1 J5 5 D1 R256 1 D8 2 M3 R372 2 E5 3 G1 L380 1 F6 3 N4 Q520 1 35 5 H2 R257 1 D8 2 N5 R374 2 F5 3 J2 L385 1 F6 3 N3 Q530 1 J5 5 HO R258 1 D8 2 N4 R376 2 F5 3 32 L390 1 E6 3 R4 Q540 1 K5 5 12 R259 1 06 2 P4 R378 1 F5 3 J3 L750 1 G4 7 RO Q550 1 K5 5 LO R260 1 D8 2 N4 R380 1 F5 3 J4 L910 1 P7 9 F7 Q610 1 L6
90. R746 1 H3 7 E4 R857 1 N4 8 D2 SL430 2 K7 4 J5 R361 2 E6 3 K2 R747 1 H3 7 E5 R858 1 N3 8 CO SL435 2 J8 4 K4 R363 2 E7 3 12 R748 1 J2 7 A1 R859 1 N3 8 DO SL440 2 J7 4 15 R365 2 E7 3 M1 R749 1 32 7 B1 R860 1 N3 8 E0 R367 2 E7 3 M1 R750 1 H4 7 H7 R861 1 M3 8 FO SW201 1 B4 2 A6 R369 2 E7 3 M3 R752 1 G4 7 F5 R863 1 N3 8 F2 R371 1 E7 3 M3 R753 1 G4 7 F3 R865 1 M3 8 G2 T210 1 03 2 Q2 R372 2 E7 3 M3 R754 1 63 7 F3 R866 1 M3 8 H2 T610 1 L6 6 N2 R374 2 E7 3 N3 R756 1 G3 7 G5 R867 1 M3 8 G1 R376 2 E7 3 N2 R757 1 64 7 H4 R868 1 N4 8 GO TP202 1 D7 2 D9 R378 2 E7 3 N3 R758 1 H3 7 34 R869 1 M3 8 GO TP211 1 D3 2 P8 R380 2 E6 3 P4 R759 1 H3 7 J4 R870 1 M3 8 HO TP310 1 E5 3 KO R381 2 E7 3 P3 R760 1 H3 7 K4 R871 1 N3 8 HO TP601 1 N5 6 K9 R383 2 E8 3 P3 R762 1 H3 7 K4 R872 1 N4 8 HO TP602 1 L6 6 R9 R385 2 E8 3 Q2 R763 1 H4 7 14 R873 1 N4 8 KO TP603 1 15 6 J2 R387 2 E8 3 Q3 R765 1 H3 7 J2 R875 1 M4 8 J1 TP604 1 14 6 N6 R389 2 E8 3 03 R766 1 G3 7 J3 R876 1 M3 8 K1 TP607 1 L4 6 F9 R391 2 E4 3 G0 R767 1 H3 7 K2 R877 1 M2 8 K1 TP710 1 H4 7 J5 R393 2 F4 3 GO R769 1 H3 7 13 R878 1 M2 8 KO R395 2 E5 3 G0 R771 1 H4 7 13 R879 1 M2 8 KO X310 1 F3 3 C2 R397 2 E5 3 G0 R772 1 G4 7 M2 R881 1 M4 8 K2 R398 2 E6 3 HO R774 1 H4 7 M2 R882 1 M4 8 L3 8XF310 1 F7 3 G7 R399 2 E5 3 JO R775 1 H4 7 N2 R884 1 M3 8 N3 8XF320 1 F7 3 37 R410 2 K7 4 E6 R784 1 G3 7 P1 R885 1 M3 8 N2 8XF330 1 F5 3 P7 R413 2 17 4 E5 R785 1 G3 7 Q1 R886 1 M3 8 P3 8XF340 1 E3 3 01 R416 2 18 4 F5 R786 1 G2 7 R1 R887
91. R750 036 12220 00 RES M F 0805 22E 5 R336 036 14100 00 RES M F 0805 1K 5 R752 036 12220 00 RES M F 0805 22E 5 R338 036 14100 00 RES M F 0805 1K 5 R753 036 17100 00 RES M F 0805 1M 5 R340 036 16100 00 RES M F 0805 100K 5 R754 036 14100 00 RES M F 0805 1K 5 R342 036 15150 00 RES M F 0805 15K 5 R756 036 16470 00 RES M F 0805 470K 5 R344 036 15470 00 RES M F 0805 47K 5 R757 036 16470 00 RES M F 0805 470K 5 R346 036 16120 00 RES M F 0805 120K 5 R758 036 14120 00 RES M F 0805 1K2 5 R348 036 14470 00 RES M F 0805 4K7 5 R759 036 13330 00 RES M F 0805 330E 5 R350 036 14100 00 RES M F 0805 1K 5 R760 036 13180 00 RES M F 0805 180E 5 R352 036 15150 00 RES M F 0805 15K 5 R762 036 13100 00 RES M F 0805 100E 5 R354 036 15150 00 RES M F 0805 15K 5 R763 036 13100 00 RES M F 0805 100E 5 R356 036 14100 00 RES M F 0805 1K 5 R765 036 13680 00 RES M F 0805 680E 5 R359 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R766 036 14100 00 RES M F 0805 1K 5 R360 030 52390 20 RES FILM Al 39E 5 0 4W 4X1 6 R767 036 13680 00 RES M F 0805 680E 5 R362 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R769 036 13180 00 RES M F 0805 180E 5 R364 036 14150 00 RES M F 0805 1K5 5 R771 036 14820 00 RES M F 0805 8K2 5 R366 036 12470 00 RES M F 0805 47E 5 R772 036 15220 00 RES M F 0805 22K 5 R368 036 15100 00 RES M F 0805 10K 5 R774 036 14820 00 RES M F 0805 8K2 5 R370 036 13560 00 RES M F 0805 560E 5 R775 036 14560 00 RES M F 0805 5K6 5 R372 036 14150 00 RES M F 0805 1K5 5
92. R777 036 14220 00 RES M F 0805 2K2 5 R374 036 13330 00 RES M F 0805 330E 5 R784 036 12680 00 RES M F 0805 68E 5 R376 036 14100 00 RES M F 0805 1K 5 R785 036 14330 00 RES M F 0805 3K3 5 R378 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 R786 036 12100 00 RES M F 0805 10E 5 R380 030 53180 20 RES FILM Al 180E 5 0 4W 4X1 6 R787 036 12100 00 RES M F 0805 10E 5 R382 030 53180 20 RES FILM Al 180E 5 0 4W 4X1 6 R790 036 13220 00 RES M F 0805 220E 5 R384 036 11330 00 RES M F 0805 3E3 5 R791 036 13100 00 RES M F 0805 100E 5 R386 036 12470 00 RES M F 0805 47E 5 R792 036 14100 00 RES M F 0805 1K 5 R388 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 R801 036 16150 00 RES M F 0805 150K 5 R390 030 52120 20 RES M F 12E 5 4X1 6 0 2 R802 036 15470 00 RES M F 0805 47K 5 R392 030 53820 20 RES FILM Al 820E 5 0 4W 4X1 6 R808 036 12100 00 RES M F 0805 10E 5 R394 030 52120 20 RES M F 12E 5 4X1 6 0 2 R809 036 14470 00 RES M F 0805 4K7 5 R396 030 53820 20 RES FILM Al 820E 5 0 4W 4X1 6 R810 036 14470 00 RES M F 0805 4K7 5 R502 036 13330 00 RES M F 0805 330E 5 R811 036 14470 00 RES M F 0805 4K7 5 R505 036 15150 00 RES M F 0805 15K 5 R812 036 14470 00 RES M F 0805 4K7 5 R510 036 13680 00 RES M F 0805 680E 5 R813 036 14470 00 RES M F 0805 4K7 5 R515 036 12560 00 RES M F 0805 56E 5 R815 036 15470 00 RES M F 0805 47K 5 R520 036 16120 00 RES M F 0805 120K 5 R816 036 16150 00 RES M F 0805 150K 5 R525 036 15470 00 RES M F 0805 47K 5 R818 036 14470 00 RES M F 080
93. R784 036 12680 00 RES M F 0805 68E 5 RV330 042 04220 06 RES PRE 2K2 CAR 6MM FLAT R785 036 14330 00 RES M F 0805 3K3 5 R786 036 12100 00 RES M F 0805 10E 5 SHLD610 062 00010 13 CAN 10MM SQ X 11MM CAN A4M1017 R787 036 12100 00 RES M F 0805 10E 5 R790 036 13220 00 RES M F 0805 220E 5 SK501 240 04021 77 SKT JACK 1 3 PCB MT 64W R791 036 13100 00 RES M F 0805 100E 5 SK502 240 04021 77 SKT JACK 1 3 PCB MT 64W R792 036 14100 00 RES M F 0805 1K 5 SK503 240 04021 77 SKT JACK 1 3 PCB MT 64W R804 036 15470 00 RES M F 0805 47K 5 SK504 240 04021 77 SKT JACK 1 3 PCB MT 64W R805 036 13470 00 RES M F 0805 470E 5 SK505 240 04021 77 SKT JACK 1 3 PCB MT 64W R808 036 12100 00 RES M F 0805 10E 5 SK513 240 04021 77 SKT JACK 1 3 PCB MT 64W R809 036 14470 00 RES M F 0805 4K7 5 SK522 240 04021 77 SKT JACK 1 3 PCB MT 64W R810 036 14470 00 RES M F 0805 4K7 5 SK531 240 04021 77 SKT JACK 1 3 PCB MT 64W R811 036 14470 00 RES M F 0805 4K7 5 SK532 240 04021 77 SKT JACK 1 3 POB MT 64W R812 036 14470 00 RES M F 0805 4K7 5 SK533 240 04021 77 SKT JACK 1 3 PCB MT 64W R813 036 14470 00 RES M F 0805 4K7 5 SK534 240 04021 77 SKT JACK 1 3 PCB MT 64W R815 036 15470 00 RES M F 0805 47K 5 SK535 240 04021 77 SKT JACK 1 3 PCB MT 64W R816 036 16150 00 RES M F 0805 150K 5 SK805 240 10000 07 CONN SMD SKT 16W 2R M MATCH R818 036 14470 00 RES M F 0805 4K7 5 SK810 240 04020 42 SKT 44 PIN SMD PLCC R819 036 14470 00 RES M F 0805 4K7 5 R820 036 15470 00 RES M F 0805 47K 5 SW
94. RES M F 0805 47K 1 R209 036 14150 10 RES MF 0805 CHIP 1K5 1 R210 036 14470 10 RES M F 0805 CHIP 4K7 1 R212 036 15100 00 RES M F 0805 10K 5 R213 036 14390 00 RES M F 0805 3K9 5 R214 036 14470 00 RES M F 0805 4K7 5 R218 036 13390 10 RES MF 0805 CHIP 390E 1 R219 available as sub assembly only refer to 045 06100 05 in the mechanical parts list R220 036 15470 10 RES M F 0805 47K 1 R222 036 15470 10 RES M F 0805 47K 1 R224 036 14150 10 RES MF 0805 CHIP 1K5 1 R225 030 03120 00 RES FILM 120E 5 0 25W 7X2 5 R228 036 14470 10 RES M F 0805 CHIP 4K7 1 R229 036 15560 10 RES MF 0805 CHIP 56K 1 R231 030 03120 00 RES FILM 120E 5 0 25W 7X2 5 R237 045 04470 00 RES NTC SMD 4K7 5 20MW RV101 042 04500 05 RES PRESET SMD 5K CER 4MM SQ RV103 042 05500 05 RES PRESET SMD 50K CER 4MM SQ RV105 042 04500 05 RES PRESET SMD 5K CER 4MM SQ RV107 042 05500 05 RES PRESET SMD 50K CER 4MM SQ RV109 044 04200 03 RES PRE 2K 10 TURN PNL MTG RV113 042 06500 05 RES PRESET SMD 500K CER 4MM SQ RV115 042 04220 05 RES PRESET SMD 2K CER 4MM SQ SK101 240 10000 05 CONN SMD SKT 8W 2R M MATCH SK103 240 10000 05 CONN SMD SKT 8W 2R M MATCH SK203 240 02100 44 SKT COAX MINI JACK PCB MT ANG Copyright TEL 30 04 98 IPN 220 01404 03 D5 2 6 T838 PCB Information M830 00 T838 Mechanical 8 Miscellaneous Parts 220 01404 03 IPN Legend Description IPN Legend Description 000 00030 95 9 Q137 319 30064 00 13 SPACER HSINK RF MODULE 004 00687 02 3 14
95. Series Ancillary Equipment Service Manual M800 00 101 or later issue or consult your nearest Tait Dealer or Customer Service Organisation for further details 1 Use the Read Module function in PGM800Win to find out what the default channel is Copyright TEL 23 07 99 C3 4 T836 837 Initial Tuning Adjustment 3 3 You will need the following test equipment e computer with PGM800Win installed e T800 programming kit 13 8V power supply digital multimeter audio signal generator RF power meter audio voltmeter x 2 modulation meter oscilloscope digital preferred 20dB or 40dB pad Test Equipment Required T800 01 0010 calibration test unit optional module programming interface e g T800 01 0004 optional or RF test set optional Figure 3 1 and Figure 3 2 show typical test equipment set ups 13 8V aa E Frequency PSU 20dB pad exciter i Counter 40dB pad transmitter Ve X i sie T800 RF O P E SEKE T800 Exciter Modulation Audio 600 A TAD Transmitter li iii gt A Meter Generator CTCSS I P AF O P KN AN gt O Audio l l Voltmeter RF Power Audio Oscilloscope Meter Voltmeter ME PGM800Win Figure 3 1 T836 837 Test Equipment Set
96. T837 PCB Information C6 3 9 replace A4 pages C6 3 9 C6 3 10 with A3 pages C6 3 9 C6 3 10 Copyright TEL 30 04 98 C6 3 10 T837 PCB Information M830 00 replace A4 pages C6 3 9 C6 3 10 with A3 pages C6 3 9 C6 3 10 30 04 98 Copyright TEL IPN 220 01390 02 M830 00 T837 PCB Information C6 3 11 T837 Grid Reference Index IPN 220 01390 02 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C201 1 01 2 B8 C318 2 F8 3 F9 C681 1 M5 6 R3 C827 1 N3 8 DO C202 1 01 2 08 C320 2 F7 3 G8 C684 1 M5 6 R3 C828 1 N3 8 E0 C204 1 A2 2 E8 C324 2 F8 3 H9 C687 1 L6 6 Q1 C830 1 N3 8 R1 C205 1 A2 2 E8 C330A 2 F8 3 N8 C690 1 L6 6 R1 C838 1 N4 8 FO C207 1 C7 2 B6 C330B 1 F8 3 N8 C693 1 L6 6 R1 C841 1 N2 8 K2 C209 1 06 2 D6 C332 2 E4 3 B5 C700 1 K4 7 A8 C844 1 M2 8 L2 C210 1 07 2 HO C334 2 E4 3 D4 C703 1 J3 7 B7 C910 1 P7 9 E4 C211 1 B7 2 F8 C336 2 E4 3 D6 C705 1 J3 7 B7 C920 1 P7 9 F4 C213 1 B6 2 G8 C338 2 E5 3 F5 C706 1 J2 7 B5 C930 1 P6 9 G4 C215 1 B6 2 G8 C340 2 E5 3 F5 C707 1 K4 7 08 C217 1 C6 2 H8 C342 2 E4 3 G6 C708 1 J2 7 C9 D111
97. VCO locks refer to Section 5 4 2 Connect the drive output to a power meter and kev the transmitter Check that the output power is between 600 and 1000mW Note If the synthesiser is out of lock the lock detector synthesiser IC740 and comparator IC750 will prevent the RF signal from reaching the PA bv switching the supply to the exciter amplifier Q340 Q345 5 5 2 T836 PA Output Power Reconnect the drive output to the PA input Connect the PA to a power meter and key the transmitter Check that the output power is gt 30W with RV320 power adjust adjusted fully clockwise 5 5 3 T837 Output Power Refer to the exciter drive amplifier fault finding chart Section 5 7 6 Ensure that the VCO locks refer to Section 5 4 2 Copyright TEL 30 04 98 C5 6 T836 837 Fault Finding M830 00 Connect the exciter output to a power meter and kev the exciter Check that the output power is between 600 and 1000mW Note If the synthesiser is out of lock the lock detector synthesiser IC740 and comparator IC750 will prevent the RF signal from reaching the PA bv switching the supplv to the exciter amplifier Q340 Q345 5 5 4 Audio And Modulation Refer to the audio processor fault finding chart Section 5 7 7 Set up the audio processor as described in Section 3 9 Check that the demodulated RF output has the frequencv response referred to in Section 4 5 with at least 5kHz 4kHz 2 5kHz deviation available at 1kHz modul
98. _ 276 00010 44 FLTR XTL 21 4M 7 5KHZ PR 4POLE R842 036 14220 00 RES M F 0805 2K2 5 8XF330 10 _ 276 00010 47 FLTR XTAL 21 4MHZ 15KHZ 2POLE R843 036 14220 00 RES M F 0805 2K2 5 8XF330 13 276 00010 47 FLTR XTAL 21 4MHZ 15KHZ 2POLE R844 036 15470 00 RES M F 0805 47K 5 8XF330 15 _ 276 00010 46 FLTR XTAL 21 4MHZ 7 5KHZ 2POLE R845 036 16150 00 RES M F 0805 150K 5 8XF330 20 276 00010 47 FLTR XTAL 21 4MHZ 15KHZ 2POLE R846 036 14470 00 RES M F 0805 4K7 5 8XF330 23 276 00010 47 FLTR XTAL 21 4MHZ 15KHZ 2POLE R847 036 14470 00 RES M F 0805 4K7 5 8XF330 25 _ 276 00010 46 FLTR XTAL 21 4MHZ 7 5KHZ 2POLE R848 036 13470 00 RES M F 0805 470E 5 8XF340 10 _ 276 00010 14 FLTR CER 455KHZ 15KHZ B W R849 036 13470 00 RES M F 0805 470E 5 8XF340 13 276 00010 76 FLTR CER 455KHZ 12KHZ B W R850 036 13470 00 RES M F 0805 470E 5 8XF340 15 276 00010 138 FLTR CER 455KHZ 9KHZ B W R851 036 13470 00 RES M F 0805 470E 5 8XF340 20 _ 276 00010 14 FLTR CER 455KHZ 15KHZ B W R852 036 14470 00 RES M F 0805 4K7 5 8XF340 23 276 00010 76 FLTR CER 455KHZ 12KHZ B W R853 036 13470 00 RES M F 0805 470E 5 8XF340 25 _ 276 00010 13 FLTR CER 455KHZ 9KHZ B W R854 036 16330 00 RES M F 0805 330K 5 R855 036 15470 00 RES M F 0805 47K 5 R856 036 16150 00 RES M F 0805 150K 5 R857 036 16150 00 RES M F 0805 150K 5 R858 036 15270 10 RES M F 0805 27K 1 R859 036 17120 10 RES MF 0805 CHIP 1M2 1 R860 036 16820 10 RES MF 0805 CHIP 820K 1 R861 036 14510 10 RES MF 0805 CHIP 5K1 1 R863 036 144
99. a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The miscellaneous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend column indicates their position in the mechanical assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments C309 C311 C406 C420 C448 C464 C774 D111 IC710 Q310 R256 R419 R425 R510 R775 RV320 303 11169 03 312 01052 01 312 01053 01 349 00020 36 Changed from 33p to 18p IPN 015 22180 01 To improve sensitivity selectivity distortion and mute ratio 710056 Changed from 39p to 47p IPN 015 22470 01 148 174MHz 20 23 8 25 changed from 15p IPN 015 22150 01 to 18p IPN 015 22180 01 to improve the front end tuning 710386 Changed from 330n polyester to 330n polyphenylene sulphide IPN 022 06330 05 to improve ultimate signal to noise performance by reducing PLL phase noise 710352 Changed from MR750 IPN 001 00011 60 to MR2520L IPN 001 00012 90
100. amp C269 13 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C677 020 07100 02 CAP ELE RA 1M 50V 5X11MM 80269 15 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C681 015 06100 08 CAP CER 1206 100N 10 X7R 50V 80269 16 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C684 025 08100 02 CAP TANT BEAD 10M 10 16V 80269 20 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C687 015 24100 08 CAP CER 0805 1N 10 X7R 50V 80269 23 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C690 015 06100 08 CAP CER 1206 100N 10 X7R 50V 80269 25 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C693 025 08100 02 CAP TANT BEAD 10M 10 16V 80269 26 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C700 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C271 10 015 22470 01 CAP CER 0805 47P 5 NPO 50V C703 015 24100 08 CAP CER 0805 1N 10 X7R 50V amp C271 13 015 22470 01 CAP CER 0805 47P 5 NPO 50V C705 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V amp C271 15 015 22470 01 CAP CER 0805 47P 5 NPO 50V C706 015 22470 01 CAP CER 0805 47P 5 NPO 50V 80271 16 015 22560 01 CAP CER 0805 56P 5 NPO 50V C708 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM 80271 20 015 22470 01 CAP CER 0805 47P 5 NPO 50V C709 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C271 28 015 22470 01 CAP CER 0805 47P 5 NPO 50V C710 015 25100 08 CAP CER 0805 10N 10 X7R 50V 80271 25 015 22470 01 CAP CER 0805 47P 5 NPO 50V C712 015 22470 01 CAP CER 0805 47P 5 NPO 50V 80271 26 015 22560 01 CAP CER 0805 56P 5 NPO 50V C720 015 06100 08 CAP CER 1206 100N 10 X7R
101. and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Figure 4 4 and Figure 4 5 for the location of the main tuning and adjustment controls and to Section 3 3 for the test equipment set up Refer also to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E The following topics are covered in this section Section Current Consumption Output Power Output Frequency Timers Frequency Response Audio Level Input Sensitivity Editor s Note The CTCSS adjustment procedure described in Section 4 7 has been moved to a more appropriate location in Section 3 as part of the Ini tial Tuning amp Adjustment procedure refer to Section 3 4 5 and Sec tion 3 9 3 Copyright TEL 23 07 99 C4 2 T836 837 Functional Testing M830 00 1836 837 Transmit Timers T836 837 Pre emphasis Response T836 837 Limiting Response T836 Main Tuning amp Adjustment Controls T837 Main Tuning amp Adjustment Controls 23 07 99 Copyright TEL M830 00 T836 837 Functi
102. and one T800 Series II transmitter to be mounted horizontally side by side in a standard 483mm rack frame The kit contains a front panel complete with speaker programming port an options tray for mounting a power supply duplexer etc and a wiring loom to connect the two T800 modules to the terminal blocks mounted on the rear of the options tray The T800 23 0010 mains power supply available separatelv is designed for use with the T800 23 0000 The rack height of the assembled unit is 2U T800 23 0001 Slimline Repeater Mounting Kit The T800 23 0001 Slimline Repeater kit is the same as the T800 23 0000 but is supplied with a T800 23 0010 power supply and no options tray 23 07 99 Copyright TEL M830 00 T800 Ancillary Equipment H9 Rack Frame Guides T800 41 0001 The T800 41 0001 rack frame guide is designed to fit into a T800 Series II rack frame and will accept one T800 Series II module except for power supplies and power amplifiers which must use their own guides It is supplied disassembled and comprises a top and bottom rail a rear panel two D range sockets and mounting screws T800 41 0002 The T800 41 0002 rack frame guide is designed to fit into a T800 Series II rack frame and will accept two T800 Series II modules except for power supplies and power amplifiers which must use their own guides It is supplied disassembled and comprises two top and bottom rails a double width rear panel four D range sockets and
103. assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments D101 D105 D113 IC204 L236 R123 R158 R206 R207 R208 R209 R210 R211 R213 R215 R218 R219 R220 R222 R224 R228 R229 258 00010 03 349 00020 36 Removed from the main PCB and replaced by two 1N4148 diodes IPN 001 50012 00 placed on the D range POB one soldered between PL101 pins 5 and 7 cathode the other between PL101 pins 6 and 8 cathode To allow external power meters to read zero and still provide meter overvoltage protection 710978 Changed from MR750 IPN 001 00011 60 to MR2520L IPN 001 00012 90 to provide overvoltage transient sup pression 750087 88 89 90 91 92 Changed from LMC622CM to LM358 710382 Changed from through hole link IPN 051 00640 01 to SMD link IPN 051 00640 02 710580 Changed from 1k resistors IPN 036 14100 00 to BA592 diodes IPN 001 10059 20 to allow external power meters to read zero 710978 Changed from 3904 IPN 036 13390 10 to 1002 IPN 036 13100 10 Changed from 47k IPN 036 15470 10 to 4k7 IPN 036 14470 10 Changed from 1k5 I
104. box 1kHz and close the PTT switch Increase the audio level until the demodulated waveform shows significant signs of clipping approximately 4 5kHz 3 6kHz 2 3kHz deviation Adjust RV220 anticlockwise until the demodulated waveform is just clipping approximately 4kHz 3 2kHz 2kHz deviation Copyright TEL 23 07 99 3 14 T836 837 Initial Tuning Adjustment M830 00 Increase the audio level by 10dB and verify that the test tone is held just into clip ping Whistle steadily into the microphone checking that approximately 4kHz 3 2kHz 2kHz deviation is produced The modulated waveform should be basically sinusoidal Speak into the microphone checking that the modulation peaks reach about 5kHz 4kHz 2 5kHz deviation As the line is to be used without compression set RV210 line sensitivity as described in Section 3 9 5 3 9 6 3 Compressor On Both Line 8 Microphone Inputs Set up as described in Section 3 9 6 1 23 07 99 Copyright TEL M830 00 T836 837 Functional Testing C4 1 4 ZN Caution T836 837 Functional Testing This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following test procedures will confirm that the T836 837 has been tuned and adjusted correctly and is fully operational Note 1 Note 2 In this
105. first digit refers to the sheet number and the last two characters refer to the location on that sheet of the continuation of the circuit e g 183 DISCRIMINATOR R338 ire 1R3 2R9 2R9 8A2 these grid references show where the circuit is continued IF SIG C301 R303 4R4 0 30 04 98 Copyright TEL M830 00 T838 PCB Information D5 2 1 5 2 1838 Power Amplifier PCB This section contains the following information Section 220 01404 03 Parts List Mechanical amp Miscellaneous Parts Mechanical Assembly Grid Reference Index PCB Layout Bottom Side PCB Layout Top Side Control Section Circuit Diagram RF Thermistor Control Sections Circuit Diagram Copyright TEL 30 04 98 D5 2 2 T838 PCB Information M830 00 30 04 98 Copyright TEL M830 00 IPN 220 01404 03 T838 PCB Information D5 2 3 T838 Parts List IPN 220 01404 03 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is a variant component which is fitted only to the product
106. frequency and adjust the TCXO IC700 trimmer if required A Caution This trimmer is susceptible to physical damage Do not exert a down ward force of more than 500g 11b when adjusting Copyright TEL 23 07 99 3 10 T836 837 Initial Tuning amp Adjustment M830 00 3 7 PA Alignment T836 Oniv Check that the exciter is connected to the PA with the coaxial link Connect an RF power meter to the PA output Turn RV320 power adjust fully clockwise Measure and record the voltage VL at L490 perform this measurement at room temperature so that the NTC R460 is close to 25 C Key the transmitter by earthing the Tx Key line Tune CV451 until maximum power is obtained Reduce the current by approximately 1A by detuning CV451 or until the power drops below 30W Check that the total current drawn is less than 4 5A for 25W output power Adjust RV320 for an output power between 5 and 25W 3 8 Thermal Shutdown T836 Only Key the transmitter by earthing the Tx Key line and set the output power to 25W as described in Section 3 7 Short L490 to ground Set RV330 high temperature power adjust for an output power of 5W Set RV310 temperature adjust to 0 16VL volts measured at IC330 pin 5 where VL is the voltage measured at L490 in Section 3 7 This sets the thermal shutdown at 85 C at NTC R460 30 04 98 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 11 3 9 Audio Processor CTCSS 3
107. from 0 to 600 seconds in PGM800Win version 2 12 and later Tx Enable Tail Time Tx Enable M On Tx Reg i l Lockout Time Timeout Time Figure 2 8 1836 837 Transmit Timers Copyright TEL 23 07 99 C2 12 T836 837 Circuit Operation M830 00 2 8 T836 Drive Amplifier amp PA Refer to Figure 2 1 and the exciter and PA circuit diagrams sheets 3 amp 4 in Section 6 2 The output power of the PA is maintained at a constant level via a power control loop applied to the two stage wide band exciter amplifier Q365 Q370 The forward and reverse RF power levels are sensed via a dual directional coupler and detector diodes D410 D420 in the PA cavity The detected DC signals are summed with the power adjust level and fed to the control integrator 1C330 pins 1 2 amp 3 The output control voltage is buffered by Q310 and Q315 and applied to the collectors of the wide band exciter amplifier Note Forward and reflected power signals are summed so that under high VSWR the power control will turn the output RF level down To reduce the spurious output level when the synthesiser is out of lock the Tx Reg and Lock Detect signals are gated to inhibit the PA control circuit and to switch off the RF signal at the input to the drive amplifier This is achieved by a PIN switch attenuator D340 D350 D360 Cyclic keying control is provided by additional circuitry consisting of several time delay ramp
108. i D350 D360 L311 circuit cd Y Y N Check Q310 Racks hee Check Q365 Q315 circuitry f 8 IC330 Y N Check signal eck signal tit path between r Q365 amp Q370 Y y gt 6V RF at N Q370 collector ere Q370 Y Check signal path to output incl output socket SK310 Copyright TEL 30 04 98 C5 16 T836 837 Fault Finding M830 00 5 7 5 T836 PA amp Power Control Set RV320 Normal operating conditions power adjust Forward power 1 6V fully ko Reverse power 0 25V Check Q415 a kw ed 1C330 pin 2 27V Q425 8 circuitry i IC330pin3 lt 27V LP filter IC330 pin 1 9V Y Tx delivering N Y Check drive Y 10 5V e ow 0 1000mi gt 30W 600 1000mW Y N N N Refer to Drive Amp Check supplv Fault Finding Chart circuitrv y Check IC330 lt 2 7V on Q310 Q315 IC330 pin 2 amp circuitry 13 8V supply N Check lock det circuit TP308 should be gt 8V Check temp shutdown circuit IC330 TP314 should be lt 0 6V Check Q305 RV330 Turn RV320 cew Does variation Check power N of RV320 Y drops to zero cause either slowly in a full power or no power controlled manner Set RV320 so that output power 25W check L375 approx 7V Momentarily remove Tx load Voltage at L375 decreases to approx 6 5V Power control circuitry OK Check for break in power sense circuitry directional coupler D410 D420 amp circui
109. internal Micromatch connector If vou do not use the T800 01 0010 vou will have to connect the PC to the receiver via a module programming interface such as the T800 01 0004 For a full description of the channel programming procedure refer to the PGM800Win programming software user s manual Note When an auxiliary D range kit D range 2 T800 03 0000 is fitted you can also select a channel with an external switch such as the DIP switch on the rack frame backplane PCB Refer to Part C in the T800 Series Ancillary Equipment Service Manual M800 00 101 or later issue or consult your nearest Tait Dealer or Customer Service Organisation for further details 1 Use the Read Module function in PGM800Win to find out what the default channel is Copyright TEL 23 07 99 B3 4 T835 Initial Tuning amp Adjustment M830 00 3 3 Test Equipment Required You will need the following test equipment e computer with PGM800Win installed e T800 programming kit e module programming interface e g T800 01 0004 optional e 13 8V power supply e digital multimeter e audio signal generator a id or RF test set optional e audio voltmeter e sinad meter e oscilloscope not needed for short tuning procedure e d
110. junction of L1 amp R1 in the VCO this measures the synthesiser loop voltage Single Channel Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V Multichannel Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V on the middle channel If there is no middle channel tune CV1 so that the chan nels are symmetrically placed around a loop voltage of 9V All channels should lie within the upper and lower limits of 13V and 5V respectively Do not attempt to program channels with a greater fre quency separation than the specified switching range of 3MHz 3 4 3 Front End Alignment Note 1 In this and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Note 2 For multichannel operation align the receiver on a frequency in the middle of the required band Set RV230 front panel gating sensitivity fully clockwise Inject a strong on channel RF signal with 3kHz deviation 2 4kHz 1 5kHz at Copyright TEL 23 07 99 B3 6 T835 Initial Tuning 8 Adjustment M830 00 3 4 4 1kHz into the antenna socket and adjust front end doublets L410 L420 L460 amp L470 to give best sinad Continually decrease the RF level to maintain 12dB sinad Readjust L410 L420 L460 amp L470 to give best sinad With PL210 and PL220 connected for de emphasised audio response the receiver sensitivity should be b
111. local oscillator 20 945MHz by 1C340 The 455kHz signal is filtered using a six pole ceramic filter amp XF340 before being lim ited and detected The second IF mixer limiter detector and RSSI is in a 16 pin IC IC350 Quadrature detection is employed using L360 and the recovered audio on pin 7 of 1C350 is typi cally 0 3V p p for 60 system deviation Copyright TEL 30 04 98 B2 6 T835 Circuit Operation M830 00 2 5 Noise Mute Squelch Refer to the audio processor and IF section circuit diagrams sheets 2 and 3 respec tivelv in Section 6 and Figure 2 2 The noise mute operates on the detected noise outside the audio bandwidth An opera tional amplifier in IC390 is used as an active band pass filter centred on 70kHz to filter out audio components The noise spectrum is then further amplified in a variable gain two stage amplifier Q340 amp Q350 with additional filtering The noise is then rectified D310 and filtered to produce a DC voltage proportional to the noise amplitude The lowest average DC voltage corresponds to a high RF signal strength and the highest DC voltage corresponds to no signal at the RF input The rectified noise voltage is compared with a threshold voltage set up on RV230 the front panel Gating Sensitivity potentiometer Hysteresis is introduced by the feedback resistor R267 to prevent the received message from being chopped when the average noise voltage is close to the threshold R281 an
112. methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd The terms wide bandwidth mid bandwidth and narrow bandwidth used in this and following sections are defined in the following table Modulation Receiver 100 Deviation IF Bandwidth Channel Spacing Wide Bandwidth 25kHz 15 0kHz Mid Bandwidth 20kHz 12 0kHz Narrow Bandwidth 12 5kHz 7 5kHz Sensitivity and distortion figures are stated for standard operating conditions which includes audio de emphasis Note that the sensitivity and distortion figures will be degraded when flat audio is selected De emphasised Audio Flat Audio 23 07 99 Copyright TEL M830 00 1835 General Information B1 7 1 2 2 General Number Of Channels 128 standard Supply Voltage Operating Voltage 10 8 to 16V DC Standard Test Voltage 13 8V DC Polarity negative earth only Polarity Protection crowbar diode Supply Current Standby 350mA Full Audio 800mA Operating Temperature Range 30 C to 60 C Dimensions Height 183mm Width 60mm Length 324mm Weight 2 13kg 1 2 3 RF Section Frequency Range 136 174MHz Type Frequency Increment Switching Range Input Impedance Frequency Stability see also Section 1 4 Signal Strength Indicator RSSI dual conversion superheterodyne 5 or 6 25kHz 3MHz i e 1 5MHz from the centre frequency 50 ohms 2 5ppm 30 C
113. narrow 50ns If unlocked one will be very narrow 50ns and the other wide gt 15us 30 04 98 Copyright TEL M830 00 T835 Fault Finding B5 15 G Noisy synth poor selectivity 8 or poor residual FM VCO phase locked 5 13V present on control line c H Go to B Y Correct DC V present on Q1 VCO Y N Check inductors t biasing resistors 8 Q1 Loop filter 8 components around op amp IC750 OK Replace if faulty Change trimmer still noisy still noisy Y Y still noisy Y Y Change Q1 Change TCXO Change varactors still noisy Y Y Replace VCO assembly Y Synthesiser OK Copyright TEL 30 04 98 B5 16 T835 Fault Finding M830 00 5 7 4 Noise Mute j IC350 pin 7 Rotate RV230 gating sensitivitv c w 8 cc w amp view Gate LED Y Does Gate LED Ensure PL250 is set for noise mute operation Y Apply on channel signal 117dBm to receiver toggle on off y Switch SW201 monitor mute to ensure mute is enabled Y Check Q230 Q245 8 Q290 for operation OK 1 Y Mutable audio on outputs
114. not free resolder the joint and trv again Note The desoldering iron does not usuallv have enough heat to desolder leads from the ground plane Additional heat mav be applied bv holding a sol dering iron on the tip of the desoldering iron this mav require some addi tional help 3 1 2 Component Cutting Method Cut the leads on the component side of the PCB Heat the solder joint sufficiently to allow easy removal of the lead by drawing it out from the component side do not use undue force Fill the hole with solder and then clear with solderwick Copyright TEL 30 04 98 A3 2 Component Replacement M830 00 3 2 Surface Mount Devices Caution Surface mount devices SMDs require special storage handling removal and replacement techniques This equipment should be serv iced only by an approved Tait Dealer or Customer Service Organisa tion equipped with the necessary facilities Repairs attempted with incorrect equipment or by untrained personnel may result in perma nent damage If in doubt contact your nearest Tait Dealer or Customer Service Organisation 3 3 Cased Mica Capacitors Cased mica capacitors can be removed by heating the top with a heavy duty soldering iron and gently lifting the capacitor off the PCB with a solder resistant spike or equiva lent 23 07 99 Copyright TEL M830 00 Software Historv A4 1 4 Software History 28 06 96 PGM800Win Version 1 0 18 08 97 PGM800Win Version 2 00
115. of the main tuning and adjustment con trols Refer also to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E Section Introduction Channel Programming Test Equipment Required Short Tuning Procedure Introduction Synthesiser Alignment Front End Alignment Mute Adjustment Noise Mute Carrier Level Mute Line Amplifier Output CTCSS Decoder Operation Opening Sinad High Pass Filter RSSI If Used Copyright TEL 23 07 99 B3 2 T835 Initial Tuning amp Adjustment M830 00 Section 3 5 Audio Processor Links 3 8 3 5 1 General 3 8 3 5 2 Audio Processor Linking Details For CTCSS 3 9 3 6 Synthesiser Alignment 3 10 3 7 Alignment Of Receiver Front End And IF 3 10 3 8 Gating Delay 3 12 3 9 Noise Mute Adjustment 3 12 3 10 Carrier Level Mute 3 12 3 11 Audio Processor 3 13 3 11 1 Line Amplifier Output 3 13 3 11 2 Monitor Amplifier Output Speaker Output 3 13 3 12 CTCSS 3 13 3 12 1 Decoder Operation 3 13 3 12 2 Opening Sinad 3 13 3 12 3 High Pass Filter 3 14 3 13 RSSI 3 14 T835 Test Equipment Set up For Short Tuning Procedure T835 Test Equipment Set up For Full Tuning amp Adjustment Procedure 23 07 99 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3
116. pins SOLDER SPRING 1 3MM A4M1877 Support for front panel LED solder joints BEAD FER 7D 1 9X0 9X3 8 Fitted to D range pins WIRE T C 0 5 For ferrite beads WIRE T C 7 0 2 PVC RED Front panel LEDs WIRE T C 7 0 2 PVC BLACK Front panel LEDs COAX 50 OHM RG316 U PTFE Connects SK310 to SK420 PCB T83X VCO PCB T837 EX SERIES II BUTTON 232 00010 26 SWITCH PLUG 15 W D RANGE W W PNL MT PL100 PLG COAX MINI PIN CRIMP 1 5D For coax connecting SK310 to SK420 SKT COAX N TYPE PNL MTG OP TER SKT 2 W RECEP SHORTING LINK PL205 210 215 220 CHASSIS PAINTED T800 SERIES COVER A3M2247 D RANGE CLIP A3M2246 SPRING CLAMP CLIP A4M2630 SPR CABLE CLAMP HANDLE BASE STATION SERIES II LID TOP PNTD A1M2364 T800 LID BOTTOM PNTD A1M2364 T800 PNL FRT EX NO EX OUT SER II SHIELD A3M2250 F THRU MTG SCRW M3X6MM P POZ ST BZ LIM SCREW TT M3X8m PANTORX BLK SCRW T T M4X12MM P POZ BZ SCRW T T M4X20MM P POZ BZ SPACER 5MM HI 8MM ST 2 5MM HO NUT M3 COLD FORM HEX ST BZ NUT M4 NYLOC HEX WSHR M3 FLAT 7MMX0 6MM ST BZ WSHR M3 S PROOF INT BZ GASKET SIL INSUL TO 5 TO 39 Under Q370 GASKET SIL TO 220 CLIP MTG GROMMET LED MTG 3MM LABEL 104X37MM 365 00100 09 365 00100 20 365 01541 00 400 00020 07 410 01081 01 410 01082 01 LABEL WHITE VINYL 15X11MM S A LABEL WHITE S A 28X11MM LABEL TX RX EX TYPE APR SER NO SLEEVING 2MM SIL RUBBER CRT T800 SERIES II CRTN 10 T800 KIWI 423X410X360 30 04 98 Copyright TEL M830 00
117. present on pin 2 of IC202 and or IC201 the level is dependent on the setting of RV109 Check that 13 8V is present at pin 4 of IC103 Check that approximately 12V is present at pin 8 of IC105 the level is dependent on the setting of RV109 Check that 7 0V is present at the output of regulator IC109 4 3 RF Checks The PA Fault Finding Charts Section 4 4 1 amp Section 4 4 2 provide a systematic approach for locating a fault in the RF circuitry Use these charts in conjunction with Figure 4 1 which shows the locations of the 5002 input and output test points for RF power modules IC201 and IC202 Note 1 Use good quality 504 coax for the flying test leads Note 2 Ensure each output is terminated in a 509 load of the correct power rating For problems with the power control circuitry refer to the Power Control Fault Finding Chart Section 4 4 3 Copyright TEL 30 04 98 D4 4 T838 839 Fault Finding M830 00 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 5 replace A4 pages D4 5 D4 6 with A3 pages D4 5 D4 6 Copyright TEL 30 04 98 D4 6 T838 839 Fault Finding M830 00 replace A4 pages D4 5 D4 6 with A3 pages D4 5 D4 6 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 7 4 4 Fault Finding Charts 4 4 1 1838 PA A RF circuitry OK _ Is maximum power gt 50W over entire frequency range
118. product codes are explained in Section 1 3 in this Part of the manual and Figure 1 1 in Part A shows tvpical labels Xou can further verifv the PA tvpe bv checking the placement of an SMD resistor in the table that is screen printed onto the PCB similar to the example drawn below In this example the resistor indicates that the product was built as a T830 Series I compatible T838 10 XXXX See below for further details on T830 Series I Series II compatibility PRODUCT TYPE Note MODEL REV SERIES SERIES The only function of this l resistor is to indicate the 1839 10 3A product type It has no T839 20 3A effect on the circuitry or T838 10 3A M operation of the PA T838 20 3A T830 Series Series Il Compatibility T838 and T839 PAs can be built compatible with either T830 Series I or Series II equipment You can check whether your PA was built as Series I or Series II compatible by checking the table that is screen printed onto the PCB as explained above The table below explains briefly the differences between Series I and Series II compatible PAs Apart from these differences Series I and Series II compatible PAs are electrically and mechanically the same Refer to Part I for detailed information on Series I Series II compatibility Note This manual covers the latest design T838 PA which uses an RF power module and is identified by the product code T838 X0 XXXX Please refer to servi
119. rack frame in Series I pin 7 is allocated to audio 1 for the transmitter exciter and audio 2 for the receiver converting the exciter from rear RF output to front RF out put e disabling cyclic keying in the exciter This procedure assumes you have already purchased the appropriate Series I conver sion kit e T835 T800 70 0035 e T836 T800 70 0036 e T837 T800 70 0037 If not you should purchase one from your nearest Tait Dealer or Customer Service Organisation before beginning the procedure It should take approximately 15 20 minutes per module to perform these steps Copyright TEL 23 07 99 12 2 T835 836 837 SII SI Conversion M830 00 2 2 Method 1 Remove the Series II front panel from the module as follows e remove the volume knob T835 only e remove the four screws using a Torx screwdriver e push the LEDs from the front of the panel to remove them from their grommets 2 Remove both covers from the module 3 Remove the M3 screws spring washers and M3 nuts from D range 1 Note If you have a chassis with threaded holes you will need to remove only the M3 screws and spring washers 4 Replace the M3 screws with locating pins M3 spring washers and nuts if necessary 5 If you are modifying a T835 follow this step otherwise go to Step 6 Remove R808 109 as shown in Figure 2 1 Ensure that R160 100 is placed as shown in Figure 2 1 This will convert D range 1 pin
120. respectively in Section 6 Local Oscillator From Synthesiser RF In 136 174MHz 2dB Pad Post 4 Pole Harmonic Doublet RF Doublet Mixer Crystal IF Filter Filter Amp Filter Diplexer Amp Filter Amp 2 R ER Z Mixer 21 4MHz lt 2 Pole FM Low Crystal Mixer Ceramic IF Limiter Detector Pass Filter NE612 Filter Amp NE614 NE614 Filter Audio R AS gt o To Audio ow oy sA D Processor 21 4MHz 455kHz Buffer e ASSI Output 2nd LO oltage IUH 20 945MHz RSSI gt To D Range Socket lt Comparator Buffer Amp Link Carrier Mute Carrier Noise Mute WAXA Mute Active LF Diode Adjust Amp Filter Amp Detector Comparator Rx Gate Out RL b sa Ne At PA gt 0 To Audio Z Processor Smoothing Gating Comparator i Filter Noise Delays ain A Mute ooh Adjust p Adjust Audio Section l Figure 2 2 1835 Front End IF and Mute Block Diagram The incoming signal from the N type antenna socket is fed through a 7 pole low pass filter with a cut frequency of approximately 200MHz This low loss filter tvpicallv less than 0 5dB insertion loss over 136 174MHz provides excellent immunity to interference from high frequency signals The signal is then further f
121. the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C201 1 01 2 B8 C318 2 F8 3 F9 C681 1 M5 6 R3 C827 1 N3 8 DO C202 1 01 2 08 C320 2 F7 3 G8 C684 1 M5 6 R3 C828 1 N3 8 E0 C204 1 A2 2 E8 C324 2 F8 3 H9 C687 1 L6 6 Q1 C830 1 N3 8 R1 C205 1 A2 2 E8 C330A 2 F8 3 N8 C690 1 L6 6 R1 C838 1 N4 8 FO C207 1 C7 2 B6 C330B 1 F8 3 N8 C693 1 L6 6 R1 C841 1 N2 8 K2 C209 1 06 2 D6 C332 2 E4 3 B5 C700 1 K4 7 A8 C844 1 M2 8 L2 C210 1 07 2 HO C334 2 E4 3 D4 C703 1 J3 7 B7 C910 1 P7 9 E6 C211 1 B7 2 F8 C336 2 E4 3 D6 C705 1 J3 7 B7 C920 1 P7 9 F6 C213 1 B6 2 G8 C338 2 E5 3 F5 C706 1 J2 7 B5 C930 1 P6 9 G6 C215 1 B6 2 G8 C340 2 E5 3 F5 C707 1 K4 7 08 C217 1 C6 2 H8 C342 2 E4 3 G6 C708 1 J2 7 C9 D111 1 P4 1 R1 C219 1 C6 2 H7 C344 2 E5 3 J5 C709 1 K4 7 D9 D205 1 B2 2 D9 C221 1 D5 2 G6 C346 2 E6 3 J6 C710 1 J3 7 E8 D210 1 B2 2 E9 C223 1 05 2 J6 C349 2 F4 3 02 C712 1 H2 7 E7 D220 1 B4 2 P7 C225 1 03 2 K7 C350 2 F4 3 E3 C713 1 H2 7 E6 D220 1 B4 2 P6 C227 1 B4 2 K7 C353 2 F4 3 DO C720 1 J3 7 F8 D230 1 B7 2 R5 C229 1 B3 2 L7 C356 2 E4 3 F1 C722 1 J4 7 G8 D240 1 D4 2 C4 C230 1 B4 2 HO C359 2 E5 3 F1 C724 1 J4 7 H6 D240 1 D4 2 B2 C232 1 A4 2 M7 C362 2 F4 3 G2 C725 1 J4 7 J6 D250 1 D3 2 E2 C233 1 A5 2 N7 C365 2 F4 3 G2 C726 1 K4 7 J6 D250 1 D3 2 D3 C235 1 B5 2 K5 C368 2 F5 3 H2 C727 1 J3 7 J8 D260 1 02 2 C2 C237 1 04 2 K5 C370 2 F5 3 K3 C729 1 H3 7 M8 D260 1 02 2 C2 C2
122. to 60 C 1ppm available for special applications 115dBm to 70dBm 3 5 to 6 5V at approx 15dB V 1 Additional channels may be factory programmed Contact your nearest Tait Dealer or Customer Service Organisation Copyright TEL 23 07 99 B1 8 T835 General Information M830 00 IF Amplifiers Frequencies Bandwidths Narrow Bandwidth NB Mid Bandwidth MB Wide Bandwidth WB Sensitivity De emphasised Response Single Channel Bandspread 12dB Sinad Sensitivity Flat Response Single Channel Bandspread 12dB Sinad Signal Noise To Noise Ratio Iypical RF Level 107dBm CEPT RF Level 83dBm CEPT RF Level 57dBm EIA Selectivity Narrow Bandwidth 12 5kHz Mid Bandwidth 20kHz Wide Bandwidth 25kHz 21 4MHz and 455kHz 7 5kHz 12kHz 15kHz 117dBm 115dBm across switching range 111dBm 109dBm across switching range De emphasised Flat 30dB WB 25dB WB 25dB NB 20dB NB 54dB MB 49dB MB 50dB NB 45dB NB 55dB WB 52dB WB 86dB minimum 89dB typical 87dB minimum 90dB typical 92dB minimum 95dB typical Offset Selectivity Canada only 20dB Spurious Response Attenuation 100dB typical Intermodulation Response Attenuation Narrow Bandwidth 80dB CEPT typical Mid Bandwidth 80dB CEPT typical Wide Bandwidth 85dB EIA typical Blocking 100dB Co channel Rejection 6dB Amplitude Characteristic 3dB Spurious Emissi
123. to indicate the product type It has no effect on the circuitry or operation of the transmitter or exciter PCB Identification All PCBs are identified by a unique 10 digit internal part number IPN e g 220 12345 00 which is screen printed onto the PCB usually on the top side as shown in the example below ETE ON 220 D1390 Le The last 2 digits of this number define the issue status which starts at 00 and increments through 01 02 03 etc as the PCB is updated Some issue PCBs never reach full production status and are there fore not included in this manual A letter following the 10 digit IPN has no relevance in identifying the PCB for service purposes Note It is important that you identify which issue PCB you are working on so that you can refer to the appropriate set of PCB information Copyright TEL 30 04 98 C6 1 4 T836 837 PCB Information M830 00 Parts Lists The 10 digit numbers 000 00000 00 in this Parts List are internal part numbers IPNs We can process your spare parts orders more efficiently and accurately if you quote the IPN and provide a brief description of the part The components listed in this parts list are divided into two main types those with a circuit refer ence e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry com
124. torquing down otherwise the device may be broken Solder all module legs to the PCB Carefully solder the thermistor leg to the PCB Later production PAs are fitted with a different type of thermistor which you do not need to desolder from the PCB before removing a power module Refer to the top side PCB layout diagrams in Sections 5 2 and 5 3 for further details Copyright TEL 23 07 99 D4 12 T838 839 Fault Finding M830 00 4 6 Removing The PCB From The Heatsink Note This is a lengthy procedure and should be considered only after all other checks have been carried out There are no components on the bottom of the PCB Remove the harmonic filter shield lid T839 Only Desolder the power feed to the fan from the PCB Remove the output 50 ohm coaxial connector by unscrewing it from the heatsink casting and desoldering it from the PCB and harmonic filter shield wall Unplug the input 50 ohm coaxial cable from the PCB unscrew the BNC connector from the heatsink and remove the connector and cable Desolder the positive and negative power feed wires from the D range PCB Disconnect the ribbon cable from the D range PCB Remove the 2 screws securing the D range connector and PCB to the heatsink and withdraw the assembly from the heatsink Remove the mounting screws for the TO 220 device s Q137 and R223 in the T839 Remove the screws securing the RF power modules IC201 and IC202 in the T839 T839 Only R
125. via the directional coupler and low pass filter The T839 consists of two RF power modules IC201 IC202 each of which delivers 60 70W The input signal to these modules is split via a 3dB quadrature hybrid IC203 The outputs from the modules are recombined by a second 3dB quadrature hybrid IC205 before being passed to the antenna socket via the directional coupler and low pass filter The directional coupler senses forward and reflected power which is rectified D201 amp D203 and passed to the control circuitry for metering alarm and power control pur poses Power control is via a series pass transistor Q137 which controls the supply voltage on pin 2 of 1C201 in the T838 and pin 2 of both IC201 and IC202 in the T839 30 04 98 Copyright TEL M830 00 T838 839 Circuit Operation D2 5 2 3 Control Circuitry Refer to the control section circuit diagram in Section 5 10107 10105 RV115 Drive Level Clamp L101 L103 V 13 8V 13 8V lt m O Filtered Voltage Regulator Ic109 o i a VA Supply LED y Forward O Power Tx 7V Meter Forwa
126. 0 00 RES M F 0805 100K 5 R352 036 15150 00 RES M F 0805 15K 5 R253 036 16100 00 RES M F 0805 100K 5 R353 036 15100 00 RES M F 0805 10K 5 R254 036 16100 00 RES M F 0805 100K 5 R354 036 15100 00 RES M F 0805 10K 5 R255 036 15100 00 RES M F 0805 10K 5 R355 036 15470 00 RES M F 0805 47K 5 R256 036 15470 00 RES M F 0805 47K 5 R356 036 16220 00 RES M F 0805 220K 5 R257 036 16330 00 RES M F 0805 330K 5 R357 036 15470 00 RES M F 0805 47K 5 R258 036 16150 00 RES M F 0805 150K 5 R358 036 13100 00 RES M F 0805 100E 5 R259 036 15220 00 RES M F 0805 22K 5 R359 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R260 036 15470 00 RES M F 0805 47K 5 R360 030 52390 20 RES FILM Al 39E 5 0 4W 4X1 6 R262 036 15470 00 RES M F 0805 47K 5 R362 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R263 036 14470 00 RES M F 0805 4K7 5 R364 036 14150 00 RES M F 0805 1K5 5 8R264 10 036 15220 00 RES M F 0805 22K 5 R366 036 12470 00 RES M F 0805 47E 5 amp R264 13 036 15220 00 RES M F 0805 22K 5 R368 036 15100 00 RES M F 0805 10K 5 amp R264 15 036 15270 00 RES M F 0805 27K 5 R370 036 13560 00 RES M F 0805 560E 5 amp R264 20 036 15220 00 RES M F 0805 22K 5 R372 036 14150 00 RES M F 0805 1K5 5 amp R264 23 036 15220 00 RES M F 0805 22K 5 R374 036 13330 00 RES M F 0805 330E 5 8R264 25 036 15270 00 RES M F 0805 27K 5 R376 036 14100 00 RES M F 0805 1K 5 amp R265 10 036 15150 00 RES M F 0805 15K 5 R378 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 amp R265 13 0
127. 0 00 RES M F 0805 330K 5 PL205 240 00020 67 HEADER 6W 2X3 PCB MTG STD R258 036 16150 00 RES M F 0805 150K 5 PL210 240 00020 67 HEADER 6W 2X3 PCB MTG STD R259 036 15220 00 RES M F 0805 22K 5 PL215 240 00020 44 HEADER 10W X2R POB MTG 5 2 R260 036 15470 00 RES M F 0805 47K 5 PL220 240 00020 67 HEADER 6W 2X3 PCB MTG STD R262 036 15470 00 RES M F 0805 47K 5 R263 036 14470 00 RES M F 0805 4K7 5 Q210 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 10 036 15220 00 RES M F 0805 22K 5 Q220 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 amp R264 13 036 15220 00 RES M F 0805 22K 5 Q230 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 15 036 15270 00 RES M F 0805 27K 5 Q240 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 16 036 15220 00 RES M F 0805 22K 5 Q250 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 8R264 20 036 15220 00 RES M F 0805 22K 5 Q260 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS 8R264 23 036 15220 00 RES M F 0805 22K 5 Q270 000 00011 91 S XSTR BD139 NPN AF PWR TO126 8R264 25 036 15270 00 RES M F 0805 27K 5 Q305 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 26 036 15220 00 RES M F 0805 22K 5 Copyright TEL 23 07 99 IPN 220 01390 03 C6 3 30 7837 PCB Information M830 00 Ref Var_ IPN Description Ref Var IPN Description 8R265 10 036 15150 00 RES M F 0805 15K 5 R390 030 52120 20 RES M F 12E 5 4X1 6 0 2 8R265 13 036 15150 00 RES M F 0805 15K 5 R392 030 53820 20 RES FILM Al 820E 5 0 4W 4X1 6 8R265 15 036 1
128. 0 08 CAP CER 0805 1 N10 X71 50V A C373 022 55470 10 CAP MYLAR Al 47N 5 63V POTTED special applications C376 015 24100 08 CAP CER 0805 1N 10 X7R 50V C379 015 24100 08 CAP CER 0805 1N 10 X7R 50V E C382 015 22470 01 CAP CER 0805 47P 5 NPO 50V R705 47 ohm and SK710 are fitted in place of c385 020 07470 04 CAP ELE RA 4M7 25V 20 8X13 SOL 1C700 when an external frequency reference is used C388 015 24100 08 CAP CER 0805 1N 10 X7R 50V i ili C391 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V These two components are supplied with the auxiliary 394 015 04100 04 CAP GER 1206 1N 10 X7R 50V D range kits T800 06 0000 8 T800 06 0001 C396 015 04100 04 CAP CER 1206 1N 10 X7R 50V C399 015 24100 08 CAP CER 0805 1N 10 X7R 50V C503 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C201 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C505 015 06100 08 CAP CER 1206 100N 10 X7R 50V C202 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C510 015 25220 08 CAP CER 0805 22N 10 X7R 50V C204 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C513 015 25100 08 CAP CER 0805 10N 10 X7R 50V C205 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C535 015 06100 08 CAP CER 1206 100N 10 X7R 50V C207 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C550 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C209 015 25470 08 CAP CER 0805 47N 10 X7R 50V C605 015 24100 08 CAP CER 0805 1N 10 X7R 50V C210 015 06100 08 CAP CER 1206 100N 10 X7R 50V C610A 015 25100 08 CAP CER 0805 10N 10 X7R 50V C211 015 06100 08 CA
129. 0 10008 48 S XSTR SMD BCW60 NPN SOT23 SS es O Uy GAR TNT MDA Q115 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS aes pe ig ete OP bad Otel Q117 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 6 Q119 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 0173 015 23680 08 CAP CER 0805 680P 10 X7R 50V Spe a 013 53000 08 CAR CER 0905 980p 10 X70 50V Q12 000 10017 00 LS XSTR SMD BF170LT1 SOT23 a EZ KERRY U oo Q123 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS gk RER AA la eae Q125 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS cje o Q127 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS 9 015 06150 08 CAP CER1206150N10 X7R25VW 25V 6 Q129 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 oo 019 23680 081 SAR CER 0805 8807 10 418 304 Q13 000 10017 00 LS XSTR SMD BF170LT1 SOT23 C181 015 23100 01 CAP CER 0805 100P 5 NPO 50V gia EA AE CAR CER 09091000 37 NPO SON Q133 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS EH bin CAP CER 0805 ANT 104 eo Q135 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 e Q136 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C185 015 23680 08 CAP CER 0805 680P 10 X7R 50V C186 015 23680 08 CAP CER 0805 680P 10 X7R 50V Qar 00000090 26 S ASTR ENG 1O FNE 10220 AR e Q20 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C187 015 06100 08 CAP CER 1206 100N 10 X7R 50V C188 014 08100 00 CAP TANT CHIP 10M 16VW 20 Sore 3 C189 015 25100 08 CAP CER 0805 10N 10 X7R 50V Rol EME S76 C190 015 23680 08 CAP CER 0805 680P 10 X7R 50V isa oae 16470 00 RES MIE 0802 DOREA C
130. 0 50 S IC 4N25A OPTOCOUPLER Q770 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C260 002 10003 24 S IC SMD 324 4X O AMP SO14 Q775 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C330 002 10003 58 S IC SMD LM358 DUAL O AMP Q780 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C610 002 00014 58 S IC 78L05 5V 100MA REG TO92 Q785 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C630 002 00014 62 S IC 317L 100MA REG 3TER TO92 Q790 000 10003 12 S XSTR SMD BFR31 N JFET SOT23 C640 002 10003 58 S IC SMD LM358 DUAL O AMP Q795 000 10057 10 XSTR SMD BR571 NPN SOT23 C650 002 10012 32 SMD DS1232LPS 2 LP RESET amp W DOG Q810 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C700 539 00010 41 TCXO 12 8MHZ 2 5PPM 30 70C Q820 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C710 002 74910 04 S IC SMD 74HCU04 6X INV Q830 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C720 002 74910 04 S IC SMD 74HCU04 6X INV Q840 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C730 002 10045 20 S IC SMD 74HC4520T 2XCTR 4BIT Q850 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C740 002 14519 10 S IC MC145191F SMD SYNTH Q860 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C750 002 10330 78 S IC MC33078D 2X AMP LO NOISE C810 002 08951 20 S IC AT89C51 PLCC44 MIC 12MHZ R160 036 12100 00 RES M F 0805 10E 5 C820 002 12416 00 S IC SMD AT24C16N 10SC EEPROM R201 036 13560 00 RES M F 0805 560E 5 C830 002 10003 24 S IC SMD 324 4X O AMP SO14 R202 036 14100 00 RES M F 0805 1K 5 R204 036 14220 00 RES M F 0805 2K2 5 L335 056
131. 0 T836 837 Circuit Operation C2 7 2 4 VCO Refer to the VCO circuit diagram in Part E The VCO transistor Q1 operates in a common source configuration with an LC tank circuit coupled between its gate and drain to provide the feedback necessary for oscilla tion The VCO control voltage from the loop filter 1C750 pin 7 is applied to the vari caps D1 D4 to facilitate tuning within an 8MHz band of frequencies A trimcap CV1 is used for coarse tuning of the VCO The output from the oscillator circuit drives a cas code amplifier stage Q2 Q3 which supplies 10dBm typically to a further stage of amplification Q5 This is the final amplifier on the VCO PCB and delivers 22dBm typically to the exciter drive amplifier A low level sniff is taken from the output of Q3 and used to drive the divider buffer Q795 for the synthesiser IC740 The VCO operates at the actual output frequency of the exciter i e there are no multi plier stages The VCO is modulated bv superimposing the audio signal onto the control voltage and bv phase modulating the reference signal 2 4 1 VCO Supply The VCO is supplied from two switched 9V supplies under the control of the Tx Reg supply The VCO Q1 and buffer amplifier Q2 Q3 are supplied from one 9V switched sup ply by Q540 via the capacitor multiplier Q550 C550 The output amplifier is supplied from the other 9V supply by Q520 Q530 and Q510 A delay circuit holds the VCO
132. 00 00 RES M F 0805 10K 5 LED2 008 00013 35 S LED 3 GRN LO CURRENT NO MTG R232 036 16330 00 RES M F 0805 330K 5 R233 036 16100 00 RES M F 0805 100K 5 L335 056 00021 04 IND FXD 330NH AX R235 036 14470 00 RES M F 0805 4K7 5 L340 056 00021 04 IND FXD 330NH AX R237 036 15470 00 RES M F 0805 47K 5 L345 052 08135 25 COIL A W 2 5T 3 5MM HOR 0 8MM R238 036 15470 00 RES M F 0805 47K 5 L350 052 08125 15 COIL A W 1 5T 2 5MM HOR 0 8MM R239 036 14150 00 RES M F 0805 1K5 5 L355 056 00021 01 IND FXD 1 5UH AX R241 036 14470 00 RES M F 0805 4K7 5 L360 052 08135 35 COIL A W 3 5T 3 5MM HOR 0 8MM R242 036 14220 00 RES M F 0805 2K2 5 L365 052 08130 15 COIL A W 1 5T 3 0MM HOR 0 8MM R244 036 15100 00 RES M F 0805 10K 5 L370 065 00010 08 BEAD FERR 483 3X0 7X10MM RED R245 036 16100 00 RES M F 0805 100K 5 L375 065 00010 04 BEAD FERR F8 4X2X5MM R247 036 15100 00 RES M F 0805 10K 5 L380 056 00021 01 IND FXD 1 5UH AX R248 036 16100 00 RES M F 0805 100K 5 L385 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM R249 036 16100 00 RES M F 0805 100K 5 L390 056 00021 04 IND FXD 330NH AX R251 036 16100 00 RES M F 0805 100K 5 L750 056 10068 00 IND FXD SMD 68NH 3 2 2 5 1 6 R253 036 16100 00 RES M F 0805 100K 5 L910 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM R254 036 16100 00 RES M F 0805 100K 5 L920 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM R255 036 15100 00 RES M F 0805 10K 5 R256 036 15470 00 RES M F 0805 47K 5 PL100 240 00010 55 PLUG 15 W D RANGE W W PNL MT R257 036 16330 00 RES
133. 01390 02 C6 3 12 T837 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit IC260 1 D8 2 NO P239 1 07 2 R8 Q820 1 12 8 D5 R284 1 D7 2 LO IC260 1 D8 2 FO P240 1 C7 2 R8 Q830 1 12 8 D5 R285 1 C8 2 MO IC260 1 D8 2 Q2 P243 1 B7 2 R7 Q840 1 12 8 F5 R286 1 07 2 MO IC260 1 D8 2 Q3 P244 1 B7 2 R7 Q850 1 M2 8 G5 R287 1 D9 2 MO IC260 1 D8 2 N3 P245 1 B8 2 R6 Q860 1 14 8 B3 R288 1 06 2 M2 IC330 1 E8 3 E9 P247 1 B8 2 R6 R289 1 D9 2 MO IC330 1 E8 3 M8 P248 1 B7 2 R6 R150 1 P2 1 R4 R290 1 08 2 N2 IC330 1 E8 3 MO P249 1 C7 2 R5 R160 1 P2 1 R3 R291 1 08 2 N1 IC610 1 M5 6 G8 P251 1 07 2 R5 R201 1 B2 2 E9 R292 1 08 2 Q2 1C630 1 N5 6 K5 P255 1 D5 2 R4 R202 1 C1 2 F9 R293 1 D9 2 Q2 IC640 1 M5 6 F1 P257 1 C2 2 R4 R204 1 67 2 B6 R294 1 D9 2 01 IC640 1 M5 6 Q6 P259 1 B8 2 R3 R205 1 C7 2 D6 R295 1 D8 2 R1 IC640 1 M5 6 N6 P261 1 B8 2 R3 R206 1 B7 2 G8 R296 1 06 2 PO IC650 1 L5 6 F4 P263 1 B2 2 R2 R207 1 B6 2 G8 R297 1 D7 2 P1 IC700 1 K3 7 A8 P265 1 05 2 MO R208 1 B6 2 G8 R298 1 07 2 Q0 IC710 1 J2 7 E8 P267 1 08 2 N2 R209 1 06 2 H8 R299 1 07 2 RO IC710 1 J2 7 C6 P269 1 D8 2 P2 R210 1 B6 2 H7 R302 2 F7 3 A7 IC710 1 J2 7 G0 P271 1 09 2 N1 R212 1 D4 2 F6 R304 2 E7 3 B7 IC710 1 J2 7 D6 P273 1 D9 2 PO R213 1 C4 2 G6 R306 2 F7 3 C8 IC710 1 J2 7 D7 P275 1 D7 2 QO R214 1 D4 2 G6 R308 2 E8 3 C9 IC710 1 J2 7 D6 P750 1 H4 7 R3 R215 1 04 2 H6 R310 2 F8 3 09 IC710 1 J2 7 C6 P805 1 M2 8 A7 R216 1 03 2 K7 R312 2 F8 3 D8 IC720 1 J3 7 P6
134. 028 Changed from 6804 036 13680 00 to 1k5 036 14150 00 l Changed from 2k2 036 14220 00 to 4k7 036 14470 00 Changed from 5604 036 13560 00 to 6800 036 13680 00 to reduce the level of side bands generated 710028 Changed from 15k 036 15150 00 to 2k7 036 14270 00 Changed from 22k 036 15220 00 to 47k 036 15470 00 Changed from 1k0 036 14100 00 to 1k5 036 14150 00 p To improve power at 174MHz 710028 Changed from 1k0 036 14100 00 to 10k 036 15100 00 Changed from 1k0 036 14100 00 to 47k 036 15470 00 Changed from 220 IPN 036 12220 00 to 0Q IPN 036 10000 00 to improve hum 8 noise performance 710837 839 840 841 Changed to IPN 042 05470 07 47k preset because IPN 042 05470 06 no longer available 710793 96 97 98 il li New chassis and lid tooling introduced incorporating T800 top lid replaced by 312 01052 02 mechanical improvements and better RF shielding 750027 750028 8 750029 Note that the new lids T800 bottom lid replaced by 312 01053 02 should be used only with the new chassis Silpad for Q370 replaced by Silpad IPN 362 01101 00 which needs no thermal paste 710608 Copyright TEL 23 07 99 IPN 220 01390 02 C6 3 4 T837 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description C368 015 22820 01 CAP CER 0805 82P 5 NPO 50V Note D205 and D210 are optional level limiting diodes for 370 015 2410
135. 036 14470 00 RES M F 0805 4K7 5 R758 036 14120 00 RES M F 0805 1K2 5 R350 036 14100 00 RES M F 0805 1K 5 R759 036 13330 00 RES M F 0805 330E 5 R352 036 15150 00 RES M F 0805 15K 5 R760 036 13180 00 RES M F 0805 180E 5 R354 036 15150 00 RES M F 0805 15K 5 R762 036 13100 00 RES M F 0805 100E 5 R356 036 14100 00 RES M F 0805 1K 5 R763 036 13100 00 RES M F 0805 100E 5 R359 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R765 036 13680 00 RES M F 0805 680E 5 R360 030 52390 20 RES FILM Al 39E 5 0 4W 4X1 6 R766 036 14100 00 RES M F 0805 1K 5 R362 030 53150 20 RES FILM Al 150E 5 0 4W 4X1 6 R767 036 13680 00 RES M F 0805 680E 5 R364 036 14150 00 RES M F 0805 1K5 5 R769 036 13180 00 RES M F 0805 180E 5 R366 036 12470 00 RES M F 0805 47E 5 R771 036 14820 00 RES M F 0805 8K2 5 R368 036 15100 00 RES M F 0805 10K 5 R772 036 15220 00 RES M F 0805 22K 5 R370 036 13560 00 RES M F 0805 560E 5 R774 036 14820 00 RES M F 0805 8K2 5 R372 036 14150 00 RES M F 0805 1K5 5 R775 036 14560 00 RES M F 0805 5K6 5 R374 036 13330 00 RES M F 0805 330E 5 R777 036 14220 00 RES M F 0805 2K2 5 R376 036 14100 00 RES M F 0805 1K 5 R784 036 12680 00 RES M F 0805 68E 5 R378 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 R785 036 14330 00 RES M F 0805 3K3 5 R380 030 53180 20 RES FILM Al 180E 5 0 4W 4X1 6 R786 036 12100 00 RES M F 0805 10E 5 R382 030 53180 20 RES FILM AI 180E 5 0 4W 4X1 6 R787 036 12100 00 RES M F 0805 10E 5 R384 036 11330 00 RES M F 0805 3E3 5 R790 036 13
136. 05 10N 10 X7R 50V Q550 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C830 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q610 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C838 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Q620 000 00012 15 S XSTR BD234 PNP AF PWR T0126 C841 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Q630 000 50011 30 S XSTR Al BC557B PNP TO92 AF C844 015 25100 08 CAP CER 0805 10N 10 X7R 50V Q660 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C910 015 02120 06 CAP CER 1210 12P NPO500VGRM42 Q670 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C920 015 02270 06 CAP CER 1210 27P NPO500VGRM42 Q710 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C930 015 02120 06 CAP CER 1210 12P NPO500VGRM42 Q720 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS Q730 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D111 001 00011 60 S DIODE MR750 OR SR2607 Q740 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D220 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q750 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D230 001 00010 40 S DIODE ZEN 33V 1 3W BZT03 C33 Q760 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D240 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q770 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D250 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q775 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D260 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q780 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D270 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q785 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D340 001 10000 18 S
137. 06100 08 CAP CER 1206 100N 10 X7R 50V C670 025 07330 01 CAP TANT BEAD 3M3 35V C242 025 08100 02 CAP TANT BEAD 10M 10 16V C673 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C243 015 24100 08 CAP CER 0805 1N 10 X7R 50V C677 020 07100 02 CAP ELE RA 1M 50V 5X11MM C245 015 23150 01 CAP CER 0805 150P 5 NPO 50V C681 015 06100 08 CAP CER 1206 100N 10 X7R 50V C247 015 23150 01 CAP CER 0805 150P 5 NPO 50V C684 025 08100 02 CAP TANT BEAD 10M 10 16V C249 015 24100 08 CAP CER 0805 1N 10 X7R 50V C687 015 24100 08 CAP CER 0805 1N 10 X7R 50V C251 015 24100 08 CAP CER 0805 1N 10 X7R 50V C690 015 06100 08 CAP CER 1206 100N 10 X7R 50V C253 015 24100 08 CAP CER 0805 1N 10 X7R 50V C693 025 08100 02 CAP TANT BEAD 10M 10 16V C255 015 24100 08 CAP CER 0805 1N 10 X7R 50V C700 015 06100 08 CAP CER 1206 100N 10 X7R 50V C257 015 22470 01 CAP CER 0805 47P 5 NPO 50V C703 015 24100 08 CAP CER 0805 1N 10 X7R 50V C259 015 25470 08 CAP CER 0805 47N 10 X7R 50V C705 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V C260 015 06100 08 CAP CER 1206 100N 10 X7R 50V C706 015 22470 01 CAP CER 0805 47P 5 NPO 50V C261 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C708 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C263 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C709 015 06100 08 CAP CER 1206 100N 10 X7R 50V C265 020 07470 92 CAP BI P RA 4M7 50V 6X11 5LS C710 015 25100 08 CAP CER 0805 10N 10 X7R 50V C267 015 24470 08 CAP CER 0805 4N7 10 X7R 50V c712 015 22470 01 CAP CER 0805 47P 5 NPO 50V amp C269
138. 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS Ga 01 31 2500 015 CAP CER 0805 585 NPO 504 C207 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM 6700 01572318001 CAE CER 0805 1808 5 NRO 50V C209 015 25470 08 CAP CER 0805 47N 10 X7R 50V C409 015 054 008 E CAR IZA SOY eloo 0412 015 04100 05 GAP CER HIQ1210 1N 10 NPO 50V C210 015 06100 08 CAP CER 1206 100N 10 X7R 50V 511 015 08100 08 CAP GER 1206 100N 10 XZR 50V 0415 015 02820 02 GAP CER HIQ1210 82P 5 NPO200V 0213 025 08100 02 CAP TANT BEAD 10M 10 16V 0418 015 02820 02 CAP CER HIQ1210 82P 5 NPO200V C215 014 08220 01 L CAP TANT 22UF10V276MSER ctal 01570318002 1 GAP CER HIQ T210180P S NFOT00V C217 015 24220 08 CAP CER 0805 2N2 10 X7R 50V cit 913 24100 08 CAE CER 0805 1N 10 X R 501 241003 o 0427 020 07470 04 GAP ELE RA 4M7 25V 20 8X13 SOL C219 015 24100 08 CAP CER 0805 1N 10 X7R 50V p Y faa 014 08220 01 L CAP TANT 22UF10V276MSER 0430 020 07470 04 CAP ELE RA 4M7 25V 20 8X13 SOL 0223 015 06100 08 CAP CER 1206 100N 10 X7R 50V C493 01505470 08 GAR E 1206 4 N 10 X7R 50V 0225 015 08100 08 CAP GER 1206 100N 10 X7R 50V 0436 015 03880 02 CAP CER HIQ1210 330P 5 NPO100V C227 015 06100 08 CAP CER 1206 100N 10 X7R 50V C439 0150547008 ACER 1206 ANTO XTR OY C229 015 23150 01 CAP CER 0805 150P 5 NPO 50V C442 015 02270 02 CAP CER HIQ1210 27P 5 NPO200V C230 015 06100 08 CAP CER 1206 100N 10 X7R 50V Gas 02903 10002 1 CAF MICK CASE 100r 5 23150 P 59 C448 10 015 02890 02 CAP CER HIQ1210 39P 5 NPO200V C232 0
139. 08 17 S XSTR SMD BC817 25 NPN SOT23 0842 016 07100 01 CAP EL 6X4 1M 20 50V Q280 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 0844 016 07100 01 CAP EL 6X4 1M 20 50V Q290 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C846 016 07100 01 CAP EL 6X4 1M 20 50V Q310 000 50020 18 S XSTR Al BF247A JFETTO92 VHF C848 016 07100 01 CAP EL 6X4 1M 20 50V Q320 000 10095 10 S XSTR SMD BR951 NPN UHF C850 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q330 000 10095 10 S XSTR SMD BR951 NPN UHF C873 015 25220 08 CAP CER 0805 22N 10 X7R 50V Q340 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C876 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Q350 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C879 020 08100 04 CAP ELE RA 10M 16V 4X7MM Q410 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C910 015 22150 01 CAP CER 0805 15P 5 NPO 50V Q420 000 10095 10 S XSTR SMD BR951 NPN UHF C920 015 22330 01 CAP CER 0805 33P 5 NPO 50V 0540 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C930 015 22330 01 CAP CER 0805 33P 5 NPO 50V Q620 000 00012 15 S XSTR BD234 PNP AF PWR T0126 C940 015 22150 01 CAP CER 0805 15P 5 NPO 50V Q630 000 50011 30 S XSTR Al BC557B PNP TO92 AF Q660 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 CV318 028 02100 06 CAP TRM 3 10P NPO TOP ADJ Q670 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS Q750 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D111 001 00011 60 S DIODE SR2607 USE MR750 Q760 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D220 001 10000 56 S DIO
140. 0805 47N 10 X7R 50V C742B 015 25100 08 CAP CER 0805 10N 10 X7R 50V c29 014 08220 01 L CAP TANT 22UF10V276MSER C743 015 22470 01 CAP CER 0805 47P 5 NPO 50V C293 015 27100 10 CAP CER 0805 1M 80 20 Y5V 16V C745 015 24100 08 CAP CER 0805 1N 10 X7R 50V C294 015 22470 01 CAP CER 0805 47P 5 NPO 50V C750 025 08100 03 CAP 10M 35V 20 TANT 5MM L S C295 022 06470 02 CAP MYLAR 470N 10 50V C757 015 25100 08 CAP CER 0805 10N 10 X7R 50V C304 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C759 015 25100 08 CAP CER 0805 10N 10 X7R 50V C308 015 25100 08 CAP CER 0805 10N 10 X7R 50V C761 015 25100 08 CAP CER 0805 10N 10 X7R 50V C312 015 24100 08 CAP CER 0805 1N 10 X7R 50V C762 014 08220 01 L CAP TANT 22UF10V276MSER C316 015 24100 08 CAP CER 0805 1N 10 X7R 50V C764 015 25100 08 CAP CER 0805 10N 10 X7R 50V C317 015 23100 01 CAP CER 0805 100P 5 NPO 50V C765 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C318 015 23100 01 CAP CER 0805 100P 5 NPO 50V C767 015 24100 08 CAP CER 0805 1N 10 X7R 50V C320 015 24100 08 CAP CER 0805 1N 10 X7R 50V C769 015 24100 08 CAP CER 0805 1N 10 X7R 50V C324 015 24100 08 CAP CER 0805 1N 10 X7R 50V C770 014 08220 01 L CAP TANT 22UF10V276MSER C330A 015 25100 08 CAP CER 0805 10N 10 X7R 50V C772 014 08220 01 L CAP TANT 22UF10V276MSER C330B 020 08100 04 CAP ELE RA 10M 16V 4X7MM C774 022 06330 05 CAP METAL PPS 330N 10 63V 5MM C332 015 24100 08 CAP CER 0805 1N 10 X7R 50V C776 015 25150 08 CAP CER 0805 15N 10 X7R 50V C334 015 25100 08 CAP
141. 0805 4N7 10 X7R 50V C223 015 24100 08 CAP CER 0805 1N 10 X7R 50V Note The T838 and T839 share the same basic design and 224 015 23680 08 CAP CER 0805 680P 10 X7R 50V C225 015 03680 06 CAP CER 1210 680P NPO200VGRM42 are built on the same PCB While most components in c226 015 23680 08 CAP CER 0805 680P 10 X7R 50V this design are common to both products there are a o bie A EA l ay E Gata number of components that are placed in only one prod c230 015 06100 08 CAP CER 1206 100N 10 X7R 50V uct C231 015 03680 06 CAP CER 1210 680P NPO200VGRM42 C232 015 03680 06 CAP CER 1210 680P NPO200VGRM42 KA C233 015 06100 08 CAP CER 1206 100N 10 X7R 50V Because the circuit diagrams for this design cover both c234 014 07470 03 L CAP TANT SMD 4U7 35V 20 products we have indicated on the diagrams those e 0 on aan oe te ee A 11 components which are placed only in the T839 by cze1 015 24470 08 CAP CER 0805 4N7 10 X7R 50V enclosing them in a labelled box The circuit reference 20 029 02220 02 CAP MICA 5 CASE 22P 5 a f l kal p GA for each of these components is also prefixed with the CA 005 p MIGA io AE 15 a x character C272 029 02560 03 CAP MICA 10 CASE 56P 2 C273 029 02220 02 CAP MICA 5 CASE 22P 5 Am at C294 015 23680 08 CAP CER 0805 680P 10 X7R 50V The character is used in this parts list to indicate c295 015 24470 08 CAP CER 0805 4N7 10 X7R 50V components used only in the T839 C297 015 23680 08 CAP CER 0805 6
142. 1 Inject an audio signal of 600Hz 1 5V rms 5dBm into the CTCSS input D range 1 PL100 pin 8 Key the transmitter by earthing the Tx Key line 2 Adjust the output from the audio generator to obtain 3kHz 2 4kHz 1 5kHz deviation at 600Hz 3 Change the input frequency to 120Hz and using PGM800Win adjust the value of the Reference Modulation EPOT setting for the current channel to obtain 3kHz 2 4kHz 1 5kHz deviation you can use either the mouse or up and down arrow keys 4 Change the input frequency back to 600Hz Repeat steps 2 and 3 above until the deviations achieved at the two input frequen cies are within 0 2dB of each other You will need to do this at least four times 1 Use the EDIT FILL button on the tool bar or go to Edit Fill Epot Settings on the menu bar Copyright TEL 23 07 99 3 12 T836 837 Initial Tuning Adjustment M830 00 5 Sweep the audio between 50 and 300Hz for peaks Note A peak between 50 and 300Hz will indicate a fault condition i e incorrect set up or modulation circuitry fault The specification window is 1dB relative to 150Hz from 65 to 260 Hz 3 9 3 CTCSS Encoder If Used Program a CTCSS tone on the default channel using PGM800Win If you are using an RF test set turn off the 300Hz high pass filter Key the T836 837 with the front panel Carrier switch Adjust RV805 CTCSS level adjust to give 500Hz 350Hz
143. 1 F7 3 B7 C418 2 M8 4 D5 C708 1 J3 7 B5 C844 1 N3 8 LO C307 2 F8 3 C7 C420 2 M8 4 D5 C709 1 H3 7 C5 C846 1 M2 8 MO C309 2 F8 3 D7 C422 2 18 4 D4 C710A 1 H3 7 D8 C848 1 N2 8 MO C311 2 F8 3 E7 C424 2 18 4 E4 C710B 1 H4 7 D8 C850 1 M2 8 NO 8 0313 2 F7 3 F7 C428 2 18 4 E4 C710C 1 J3 7 F8 C873 1 M4 8 N2 amp C315 2 F7 3 G6 C430 2 L8 4 F4 C711 1 J2 7 E7 C876 1 M4 8 P2 8 0317 2 F7 3 H6 C432 2 18 4 F5 C712 1 H2 7 E7 C879 1 M3 8 QO 8C319 2 F7 3 J6 C436 2 K8 4 G5 C713 1 H2 7 F7 C910 2 P6 9 E6 8C321 2 F6 3 J7 C438 2 K8 4 G4 C735 1 J2 7 A1 C920 2 P7 9 F6 C323 2 F6 3 K7 C440 2 K7 4 H6 C736 1 J2 7 B1 C930 2 P7 9 G6 Copyright TEL 30 04 98 IPN 220 01394 02 B6 2 12 T835 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C940 2 P8 9 H6 IC750 1 H4 7 H6 P825 1 K4 8 M8 R232 2 B5 2 M7 IC750 1 H4 7 H5 P830 1 K4 8 M8 R233 2 05 2 M7 CTP310 2 F8 3 E7 IC820 1 14 8 N5 P835 1 K4 8 M7 R234 2 05 2 N7 CTP320 2 F6 3 K7 IC830 1 N4 8 J0 P840 1 K4 8 M7 R236 2 B5 2 N7 CTP330 2 F5 3 N7 IC830 1 N4 8 F1 R238 2 A5 2 R6 CTP410 2 18 4 E4 IC830 1 N4 8 FO PL100 1 P3 1 FO R239 2 B5 2 R6 CTP420 2 K8 4 H4 IC830 1 N4 8 H2 PL210 1 06 2 B8 R241 2 D8 2 G5 CTP430 2 H8 4 N4 IC830 1 N4 8 E2 PL220 1 06 2 H7 R242 2 08 2 G4 CTP440 2 G8 4 R4 10840 1 M2 8 LO PL230 1 B2 2 K8 R244 2 08 2 G4 CTP910 2 N8 9 J6 1C850 1 M3 8 N1 PL240 1 B6 2 K7 R245 2 08 2 H5 IC850 1 M3 8 M2 PL250 1 08 2 C2 R247 2 B7 2 J4 CV318 1 F7 3 H6 IC850 1 M3 8 Q2 PL260 1 C8 2 H3 R
144. 1 F8 C212 1 05 2 G9 10105 1 D3 1 G2 Q133 1 D4 1 DO 0117 1 B5 d F9 C213 1 D4 2 H9 IC107 1 D3 1 K1 Q135 1 E2 1 H0 C119 1 85 1 G8 C215 1 05 2 J8 IC109 1 82 1 M1 Q136 1 63 1 H0 0121 1 04 1 B6 C216 1 46 2 B6 HIC201 1 K7 2 14 Q137 1 D2 1 J0 C123 1 D4 1 B6 C217 1 P3 2 E3 HIC202 1 K4 2 1 Q201 1 D5 2 K8 C124 1 E3 1 06 C218 1 H5 2 C6 IC203 1 N5 2 F2 R101 1 E4 _ 1 A8 C125 1 04 1 D7 C219 1 P2 2 E3 IC204 1 D5 2 H7 R102 1 E4 1 A9 0127 1 04 1 D6 C220 1 65 2 D6 IC204 1 D5 2 H8 R103 1 E4 _ 1 A8 C129 1 83 _ 1 H5 c221 1 E5 2N8 IC204 1 D5 2 N8 R104 1 E4 1 B9 C131 1 83 1 J6 c222 TES 2 E6 C205 1 65 2 P2 R105 1 D4 1 C8 C132 1 A3 1 K7 C223 1 05 2 G7 L101 1K3 1 P3 R106 1 B3 1 C8 C133 1 84 1 K8 C224 1 05 2 M8 L103 1 K2 1 Q3 R107 1 04 1 07 C137 1 82 1 K8 C225 1 L6 2 14 L105 1E2 1 KO R108 1 B3 1 E9 C138 1B2 1 18 C226 1 D4 2 H7 L201 1 P7 2 01 R109 1 03 1 E9 C139 1 84 1 M6 C227 1K6 2 J4 L202 1 43 2 B8 R111 1 85 1 E8 C141 1 83 _ 1 M8 C229 1 H6 2 K4 L203 1 L7 2 16 R112 1 B5 1 E9 C143 1 63 _ 1 E7 C230 1 L4 2 12 L204 1 05 2 D8 R113 1 B5 1 F9 C145 1 E3 1 F7 C231 1 14 2 1 L206 1 H5 2 B7 R114 1 04 1 A6 C147 1 03 1 F6 C232 1K4 2 J1 L208 TES 2 D7 R115 1 05 1 A6 C149 1 D3 1 F7 C233 1 K4 2 K2 L211 1 P2 2 D3 R116 1 D4 1 A7 C151 1 C5 1 D5 C234 1 J4 2 11 L215 117 2 5 R117 1 04 1 A6 C153 1 B5 1 D3 C240 1 H4 2 K1 L217 1 7 2 K5 R118 1 04 1 B6 C155 1 D3 1 63 C259 1 7 2 03 L223 1 J4 2 K2 R119 1 D4 1 07
145. 10 X7R 50V 8C313 23 015 22270 01 CAP CER 0805 27P 5 NPO 50V C436 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 80313 25 015 22390 01 CAP CER 0805 39P 5 NPO 50V C438 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 80315 0 015 25100 08 CAP CER 0805 10N 10 X7R 50V C440 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 80315 3 015 25100 08 CAP CER 0805 10N 10 X7R 50V C442 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 80315 5 015 22820 01 CAP CER 0805 82P 5 NPO 50V C446 015 21680 0 GAP CER 0805 6P8 1 4P NPO 50V 80315 20 015 25100 08 CAP CER 0805 10N 10 X7R 50V C448 015 22150 0 GAP CER 0805 15P 5 NPO 50V 80315 23 015 25100 08 CAP CER 0805 10N 10 X7R 50V C450 015 22470 0 GAP CER 0805 47P 5 NPO 50V 80315 25 015 22820 01 CAP CER 0805 82P 5 NPO 50V C452 015 22150 0 GAP CER 0805 15P 5 NPO 50V 80317 0 015 20050 01 CAP CER 0805 0P5 1 4P NPO 50V C454 015 22470 0 GAP CER 0805 47P 5 NPO 50V 80317 3 015 20050 01 CAP CER 0805 0P5 1 4P NPO 50V C456 015 22100 0 GAP CER 0805 10P 1 2P NPO 50V 80317 5 015 22100 01 CAP CER 0805 10P 1 2P NPO 50V C458 015 22390 0 GAP CER 0805 39P 5 NPO 50V 80317 20 015 20050 01 CAP CER 0805 0P5 1 4P NPO 50V C462 015 21680 0 GAP CER 0805 6P8 1 4P NPO 50V 80317 23 015 20050 01 CAP CER 0805 0P5 1 4P NPO 50V C464 015 22150 0 GAP CER 0805 15P 5 NPO 50V 80317 25 015 22100 01 CAP CER 0805 10P 1 2P NPO 50V C468 015 22470 0 GAP CER 0805 47P 5 NPO 50V 80319 0 015 25100 08 CAP CER 0805 10N 10 X7R 50V C470 015 22150 0 GAP CER 0805 15P 5 NPO 50V 80319 3 015 25
146. 10 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C720 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C269 13 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C722 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C269 15 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C724 014 08220 01 L CAP TANT 22UF10V276MSER amp C269 20 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C725 014 08220 01 L CAP TANT 22UF10V276MSER amp C269 23 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C726 015 25100 08 CAP CER 0805 10N 10 X7R 50V 80269 25 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C727 015 23220 01 CAP CER 0805 220P 5 NPO 50V C27 015 22470 01 CAP CER 0805 47P 5 NPO 50V C729 015 23220 01 CAP CER 0805 220P 5 NPO 50V C273 015 25470 08 CAP CER 0805 47N 10 X7R 50V C733 015 23470 08 CAP CER 0805 470P 10 X7R 50V C275 015 23120 01 CAP CER 0805 120P 5 NPO 50V C735 015 22470 01 CAP CER 0805 47P 5 NPO 50V C277 015 25100 08 CAP CER 0805 10N 10 X7R 50V C736 015 22470 01 CAP CER 0805 47P 5 NPO 50V C279 015 24100 08 CAP CER 0805 1N 10 X7R 50V C740A 015 24100 08 CAP CER 0805 1N 10 X7R 50V C28 015 25220 08 CAP CER 0805 22N 10 X7R 50V C740B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C283 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C741A 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C285 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C741B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C287 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C742A 015 06100 08 CAP CER 1206 100N 10 X7R 50V C289 015 25470 08 CAP CER
147. 100 08 CAP CER 0805 10N 10 X7R 50V C472 015 22470 0 GAP CER 0805 47P 5 NPO 50V 80319 5 015 22820 01 CAP CER 0805 82P 5 NPO 50V C478 015 23180 0 GAP CER 0805 180P 5 NPO 50V 80319 20 015 25100 08 CAP CER 0805 10N 10 X7R 50V C480 015 23180 0 CAP CER 0805 180P 5 NPO 50V 80319 23 015 25100 08 CAP CER 0805 10N 10 X7R 50V C505 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C319 25 015 22820 01 CAP CER 0805 82P 5 NPO 50V C515 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C321 0 015 22270 01 CAP CER 0805 27P 5 NPO 50V C530 014 08100 00 CAP TANT CHIP 10M 16VW 20 amp C321 3 015 22270 01 CAP CER 0805 27P 5 NPO 50V C535 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C321 5 015 22390 01 CAP CER 0805 39P 5 NPO 50V C610A 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C321 20 015 22270 01 CAP CER 0805 27P 5 NPO 50V C610B 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM 8 0321 23 015 22270 01 CAP CER 0805 27P 5 NPO 50V C611A 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM 80321 25 015 22390 01 CAP CER 0805 39P 5 NPO 50V C611B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C323 015 25100 08 CAP CER 0805 10N 10 X7R 50V C623 015 24100 08 CAP CER 0805 1N 10 X7R 50V C325 020 08100 04 CAP ELE RA 10M 16V 4X7MM C625 020 09470 07 CAPEL470M16V20 V 8 20 3 5L ESR C327 015 25100 08 CAP CER 0805 10N 10 X7R 50V C626 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C329 015 25100 08 CAP CER 0805 10N 10 X7R 50V C628 015 24100 08 CAP CER 0805 1N 10 X7R 50V C331 015 25100 08 CAP CER 0805 10N 10 X
148. 10330 02 L IND SMD 330NH R205 036 13220 00 RES M F 0805 220E 5 L340 056 10330 02 L IND SMD 330NH R206 036 14100 00 RES M F 0805 1K 5 L345 052 08135 25 COIL A W 2 5T 3 5MM HOR 0 8MM R207 036 14390 00 RES M F 0805 3K9 5 L350 052 08125 15 COIL A W 1 5T 2 5MM HOR 0 8MM R208 036 13560 00 RES M F 0805 560E 5 Copyright TEL 30 04 98 IPN 220 01395 02 C6 2 6 T836 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description R209 036 15100 00 RES M F 0805 10K 5 R309 036 14470 00 RES M F 0805 4K7 5 R210 036 14220 00 RES M F 0805 2K2 5 R310 036 14220 00 RES M F 0805 2K2 5 R212 036 16100 00 RES M F 0805 100K 5 R311 036 14470 00 RES M F 0805 4K7 5 R213 036 15100 00 RES M F 0805 10K 5 R312 036 14100 00 RES M F 0805 1K 5 R214 036 14820 00 RES M F 0805 8K2 5 R313 036 15180 00 RES M F 0805 18K 5 R215 036 16100 00 RES M F 0805 100K 5 R314 036 16330 00 RES M F 0805 330K 5 R216 036 16100 00 RES M F 0805 100K 5 R315 036 15150 00 RES M F 0805 15K 5 R217 036 14100 00 RES M F 0805 1K 5 R316 036 16220 00 RES M F 0805 220K 5 R218 036 16150 00 RES M F 0805 150K 5 R317 036 16100 00 RES M F 0805 100K 5 R219 036 14220 00 RES M F 0805 2K2 5 R318 036 14470 00 RES M F 0805 4K7 5 R221 036 14150 00 RES M F 0805 1K5 5 R320 036 15560 00 RES M F 0805 56K 5 R223 036 17100 00 RES M F 0805 1M 5 R321 036 15560 00 RES M F 0805 56K 5 R224 036 14680 00 RES M F 0805 6K8 5 R322 036 13220 00 RES M F 0805 220E 5
149. 131 1 83 _ 1 M5 C115 1 85 1 F8 C212 1 05 2 G9 10105 1 D3 1 G2 Q133 1 D4 1 DO 0117 1 B5 d F9 C213 1 D4 2 H9 IC107 1 D3 1 K1 Q135 1 E2 1 H0 C119 1 85 1 G8 C215 1 05 2 J8 IC109 1 82 1 M1 Q136 1 63 1 H0 0121 1 04 1 B6 C216 1 46 2 B6 HIC201 1 K7 2 14 Q137 1 D2 1 J0 C123 1 D4 1 B6 C217 1 P3 2 E3 HIC202 1 K4 2 1 Q201 1 D5 2 K8 C124 1 E3 1 06 C218 1 H5 2 C6 IC203 1 N5 2 F2 R101 1 E4 _ 1 A8 C125 1 04 1 D7 C219 1 P2 2 E3 IC204 1 D5 2 H7 R102 1 E4 1 A9 0127 1 04 1 D6 C220 1 65 2 D6 IC204 1 D5 2 H8 R103 1 E4 _ 1 A8 C129 1 83 _ 1 H5 c221 1 E5 2N8 IC204 1 D5 2 N8 R104 1 E4 1 B9 C131 1 83 1 J6 c222 TES 2 E6 C205 1 65 2 P2 R105 1 D4 1 C8 C132 1 A3 1 K7 C223 1 05 2 G7 L101 1K3 1 P3 R106 1 B3 1 C8 C133 1 84 1 K8 C224 1 05 2 M8 L103 1 K2 1 Q3 R107 1 04 1 07 C137 1 82 1 K8 C225 1 L6 2 14 L105 1E2 1 KO R108 1 B3 1 E9 C138 1B2 1 18 C226 1 D4 2 H7 L201 1 P7 2 01 R109 1 03 1 E9 C139 1 84 1 M6 C227 1K6 2 J4 L202 1 43 2 B8 R111 1 85 1 E8 C141 1 83 _ 1 M8 C229 1 H6 2 K4 L203 1 L7 2 16 R112 1 B5 1 E9 C143 1 63 _ 1 E7 C230 1 L4 2 12 L204 1 05 2 D8 R113 1 B5 1 F9 C145 1 E3 1 F7 C231 1 14 2 1 L206 1 H5 2 B7 R114 1 04 1 A6 C147 1 03 1 F6 C232 1K4 2 J1 L208 TES 2 D7 R115 1 05 1 A6 C149 1 D3 1 F7 C233 1 K4 2 K2 L211 1 P2 2 D3 R116 1 D4 1 A7 C151 1 C5 1 D5 C234 1 J4 2 11 L215 117 2 5 R117 1 04 1 A6 C153 1 B5 1 D3 C240 1 H4 2 K1 L217 1 7 2 K5 R118 1 04 1 B6 C155 1 D3 1 63 C259 1 7 2 03 L
150. 14100 00 RES M F 0805 1K 5 R289 036 14680 00 RES M F 0805 6K8 5 R615 036 13100 00 RES M F 0805 100E 5 R290 036 14100 00 RES M F 0805 1K 5 R617 036 10000 00 RES M F 0805 ZERO OHM R292 036 14680 00 RES M F 0805 6K8 5 R619 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R293 036 13560 00 RES M F 0805 560E 5 R621 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R294 036 14100 00 RES M F 0805 1K 5 R625 036 14100 00 RES M F 0805 1K 5 R295 036 14680 00 RES M F 0805 6K8 5 R629 032 33270 00 RES M F PWR 270E 5 1W 12X4 5 R296 036 14120 00 RES M F 0805 1K2 5 R633 036 14680 00 RES M F 0805 6K8 5 R297 030 52100 20 RES FILM Al 10E 5 0 4W 4X1 6 R636 036 12330 00 RES M F 0805 33E 5 R298 036 15470 00 RES M F 0805 47K 5 R637 036 12330 00 RES M F 0805 33E 5 R299 036 15470 00 RES M F 0805 47K 5 R641 036 14150 00 RES M F 0805 1K5 5 R301 036 13100 00 RES M F 0805 100E 5 R645 036 13470 00 RES M F 0805 470E 5 R302 036 17100 00 RES M F 0805 1M5 R649 036 14470 00 RES M F 0805 4K7 5 R303 036 12120 00 RES M F 0805 12E 5 R653 036 15100 00 RES M F 0805 10K 5 R305 036 12100 00 RES M F 0805 10E 5 R681 036 13100 00 RES M F 0805 100E 5 R307 036 13680 00 RES M F 0805 680E 5 R685 036 15150 00 RES M F 0805 15K 5 30 04 98 Copyright TEL IPN 220 01394 02 M830 00 T835 PCB Information B6 2 7 Ref Var IPN Description Ref Var IPN Description R689 036 12100 00 RES M F 0805 10E 5 R865 036 14270 00 RES M F 0805 2
151. 15 23150 01 GAP CER 0805 150P 5 NPO 50V c 02005470 02 CAP ELE RA ANM Tel OCA C448 13 015 02890 02 CAP CER HIQ1210 39P 5 NPO200V Goss 015 2410005 CGAP GER ODO INI io UR 50V HC448 15 _ 015 02390 02 CAP CER HIQ1210 39P 5 NPO200V 537 0200710002 CAR ELE RAHAMEOVISXKIAMM C448 20 016 02270 02 CAP CER HIQ1210 27P 5 NPO200V ane 0500747085 CAP BLD RAM SOV O TSTS HC448 23 015 02270 02 GAP CER HIQ1210 27P 5 NPO200V 61001 l HC448 25 015 02270 02 GAP CER HIQ1210 27P 5 NPO200V 0241 015 06100 08 GAP CER 1206 100N 10 X7R 50V ae Oat Wi 0454 015 04100 05 GAP CER HIQ1210 1N 10 NPO 50V 0242 025 08100 02 CAP TANT BEAD 10M 10 16V ke CSRO de CAB GEA OBOS INITIA SO 0457 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V 0245 015 23150 01 CAP CER 0805 150P 5 NPO 50V C460 0132410008 CAB CER OSOS IN 10 XZR 50V C247 015 23150 01 GAP CER 0805 150P 5 NPO 50V C463 91574 100 08 CAR CER 08051N 10 7h SO aoe G1E 24100 08 CAREER 0602 INAS CR SO 0466 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V C251 015 24100 08 CAP CER 0805 1N 10 X7R 50V C469 019 2410008 CAR CER0805 IN 10 X 7RIS50V ER 3 0472 015 24100 08 GAP CER 0805 1N 10 X7R 50V 0253 015 24100 08 CAP CER 0805 1N 10 X7R 50V C255 015 24100 08 CAP CER 0805 1N 10 X7R 50V Cata 015 24100 08 CAF CER 0805 1N 10 78 SOV eine E 0477 015 24100 08 GAP CER 0805 1N 10 X7R 50V 0257 015 22470 01 GAP CER 0805 47P 5 NPO 50V P o 0269 015 25470 08 CAP GER 0805 47N 10 X7R 50V 0495 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C260 01
152. 192 015 06100 08 CAP CER 1206 100N 10 X7R 50V ie o Eo osos C193 015 06100 08 CAP CER 1206 100N 10 X7R 50V EG R SZOK MESIME CROS SEIC 579 C195 014 08100 00 CAP TANT CHIP 10M 16VW 20 A A Ooo RES ME 080e IK B C201 014 07470 03 L CAP TANT SMD 4U7 35V 20 a a bio C203 015 03680 06 CAP CER 1210 680P NPO200VGRM42 Ripa 0361610000 RES MF OBO AD0K bu C204 015 03680 06 CAP CER 1210 680P NPO200VGRM42 se ooe 110000 RES MEOR 0K e 205 015 06100 08 CAP CER 1206 100N 10 X7R 50V ihe UGO d BE SME cda C206 015 03680 06 CAP CER 1210 680P NPO200VGRM42 i ARE WEGA C207 015 06100 08 CAP CER 1206 100N 10 X7R 50V ssh BE EO cer Ee MEDOK C215 015 23680 08 CAP CER 0805 680P 10 X7R 50V ee coo RESME 000E ki BL C216 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 50 GO CIA MFOD GL C218 015 23680 08 CAP CER 0805 680P 10 X7R 50V ibs o5e 16160 00 BES MIE 0802 100K S7 C220 015 23680 08 CAP CER 0805 680P 10 X7R 50V Rio e e RES NIEDER cod C221 015 06100 08 CAP CER 1206 100N 10 X7R 50V kisi os RES osos ja C222 015 24470 08 CAP CER 0805 4N7 10 X7R 50V i DE SA ii C223 015 24100 08 CAP CER 0805 1N 1026 X7R 50V ib oae 1360 00t BES ME 060E Gone ee C224 015 23680 08 CAP CER 0805 680P 10 X7R 50V di 03e AS10000 RES ME OBOTO KES C225 015 03680 06 CAP CER 1210 680P NPO200VGRM42 ze 03613470007 RES WIE oboe 4705 Ge C226 015 23680 08 CAP CER 0805 680P 10 X7R 50V AK ty 0227 015 03680 06 CAP CER 1210 680P NPO200VGRM42 jib e tee C229 015 03680 03 CAP CER 680P 5 NPO100V GRH111 o E Eee C25
153. 2 C513 1 H5 5 G2 C759 1 G4 7 G4 D640 1 15 6 M2 C263 1 D6 2 L3 C535 1 K5 5 M2 C761 1 G3 7 J4 D710 1 J3 7 L8 C265 1 D5 2 N4 C550 1 K4 5 LO C762 1 G3 7 K4 D710 1 J3 7 L8 C267 1 08 2 P3 C605 1 L6 6 D8 C764 1 H3 7 32 D720 1 H3 7 P8 8C269 1 08 2 P3 C610A 1 M5 6 F8 C765 1 G3 7 K2 D720 1 H3 7 P8 C271 1 C8 2 Q3 C610B 1 M5 6 G8 C767 1 H3 7 K3 D730 1 H3 7 H1 C273 1 08 2 04 C611A 1 L5 6 H8 C769 1 H4 7 N4 D740 1 H3 7 K2 C275 1 D3 2 E1 C611B 1 M5 6 J8 C770 1 H4 7 N4 D810 1 M2 8 B7 C277 1 04 2 G1 C623 1 M6 6 N8 C772 1 G4 7 N2 C279 1 B4 2 G1 C625 1 M6 6 Q8 C774 1 H4 7 P2 IC210 1 07 2 H0 C281 1 B5 2 31 C626 1 M6 6 R8 C776 1 H4 7 N1 IC210 1 07 2 Q0 C283 1 B5 2 KO C628 1 M6 6 R8 C782 1 G2 7 N1 IC210 1 07 2 K2 C285 1 D7 2 LO C630 1 M5 6 K5 C784 1 G2 7 Q1 IC210 1 07 2 11 C287 1 06 2 M1 C631A 1 M5 6 M6 C786 1 G2 7 R1 IC210 1 07 2 C6 C289 1 08 2 N1 C634 1 N5 6 M4 C788 1 G3 7 PO IC220 1 D6 2 PO C291 1 D7 2 P1 C636 1 M5 6 M4 C790 1 G3 7 Q0 IC220 1 D6 2 M3 C293 1 D7 2 Q1 C638 1 M6 6 P5 C792 1 G3 7 Q0 IC220 1 D6 2 D5 C294 1 D7 2 Q0 C640 1 M5 6 R6 C810 1 L3 8 K8 IC230 1 B4 2 GO C295 1 D6 2 Q0 C655 1 M4 6 C1 C812 1 L2 8 F5 IC230 1 B4 2 JO C304 2 F7 3 A8 C660 1 L5 6 K1 C813 1 K2 8 H5 IC230 1 B4 2 L5 C308 2 F7 3 C8 C665 1 L5 6 K1 C822 1 M2 8 B2 IC230 1 B4 2 N6 C312 2 F7 3 D8 C670 1 L6 6 L1 C823 1 M3 8 C2 IC230 1 B4 2 G1 C316 2 E8 3 D9 C673 1 15 6 P2 C824 1 M2 8 C1 IC240 1 D4 2 F3 C317 2 F8 3 E8 C677 1 L6 6 P1 C826 1 N3 8 CO IC250 1 D3 2 E1 Copyright TEL 30 04 98 IPN 220
154. 20 B m 25 S 3 30 2 B 35 lt 40 45 50 55 25 C 13 8V Ref audio power 2 2dBm 1kHz Audio Level dB ref to O P 1kHz 100 200 300 500 1k 2k 3k 5k 10k Frequency Hz T835 De emphasised Audio Frequency Response Copyright TEL 30 04 98 B4 6 T835 Functional Testing M830 00 4 7 Note 4 8 Noise Mute If Linked In Rotate RV230 front panel gating sensitivity fully anticlockwise Apply an on channel signal from the RF generator at a level of 110dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Increase the RF level in 1dB steps checking that the mute opens for an RF input level of approximately 105dBm Turn the RF off and check that the mute closes Rotate RV230 clockwise and check that the mute opens Reset RV230 to give the required opening sinad False opening of the mute can occur if the RF generator s attenuator is noisy when the level is being changed RSSI Apply an on channel signal from the RF generator at a level of 100dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Using a high impedance DMM check that the RSSI output voltage on pin 5 of D range 1 PL100 is 4 5V nominal Vary the RF level in 5dB steps and check that the RSSI output voltage changes at a rate of approximately 1
155. 20 01402 02 2 PCB T838 9 TEFLON DIRNL COUPLER 400 00020 07 SLEEVING 2MM SIL RUBBER 220 01404 03 1 PCB T838 9 PA MODULE DESIGN 410 00010 43 PKG T296 AMPAC REF 73 46 240 00010 55 20 PLUG 15 W D RANGE W W PNL MT PL101 240 00100 43 PLG COAX MINI PIN CRIMP 1 5D Coax from BNC connector to SK203 240 02010 54 SKT 15W DRANGE PNL MTG 125 C Matching socket for D range plug PL101 240 02100 06 27 SKT COAX N TYPE PNL MTG OP TER 240 02100 17 29 SKT COAX BNC PNL JAC CRP RG316 240 04020 62 SKT 2 W RECEP SHORTING LINK LINK1 240 06010 14 CLAMP LATCHING 15 W D RANGE Cover for D range socket 240 06010 15 25 BLOCK LATCHING 15W D RANGE 240 06010 44 26 HOOD CONN UHF 8 N TYPE 303 23120 00 30 COVER A3M2288 HOLE BLANKING 303 23146 00 38 COVER SIDE T838 9PA 308 01007 01 35 HANDLE BASE STATION SERIES II 308 13122 02 6 HEATSINK T838 9 PA COMPLETE 316 06617 00 32 PNL PA NO INP DRV SER II SNGL 319 01152 00 19 SHIELD A3M2250 F THRU MTG 319 01190 01 4 SHIELD WALL HARM FILTER 319 01201 00 31 SHIELD LID HARM FILTER 319 01202 00 5 SHIELD PA CONTROL CIRCUIT 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T838 PCB Information D5 2 7 replace A4 pages D5 2 7 D5 2 8 with A3 pages D5 2 7 D5 2 8 Copyright TEL 30 04 98 IPN 220 01404 03 D5 2 8 T838 PCB Information M830 00 replace A4 pages D5 2 7 D5 2 8 with A3 pages D5 2 7 D5 2 8 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T838 PCB Information D5 2 9 T838 Grid Reference Index
156. 201 230 00010 30 SWITCH TOG SPDT R ANG PCB MTG R821 036 15470 00 RES M F 0805 47K 5 R822 036 15470 00 RES M F 0805 47K 5 T210 053 00010 17 XFMR T4030 LINE MATCH POTCORE R823 036 15470 00 RES M F 0805 47K 5 T610 050 00016 50 COIL TAIT NO 650 455KHZ R824 036 14220 00 RES M F 0805 2K2 5 R825 036 14220 00 RES M F 0805 2K2 5 X310 274 00010 02 XTAL 20 945MHZ SPEC TE 15 R826 036 14220 00 RES M F 0805 2K2 5 R827 036 14220 00 RES M F 0805 2K2 5 8XF310 10 _ 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R828 036 14220 00 RES M F 0805 2K2 5 8XF310 13 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R829 036 14220 00 RES M F 0805 2K2 5 8XF310 15 276 00010 44 FLTR XTL 21 4M 7 5KHZ PR 4POLE R830 036 14220 00 RES M F 0805 2K2 5 8XF310 20 _ 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R831 036 14220 00 RES M F 0805 2K2 5 8XF310 23 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R832 036 14220 00 RES M F 0805 2K2 5 8XF310 25 276 00010 44 FLTR XTL 21 4M 7 5KHZ PR 4POLE R833 036 14220 00 RES M F 0805 2K2 5 8XF320 10 _ 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R835 036 14220 00 RES M F 0805 2K2 5 8XF320 13 _ 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R836 036 14220 00 RES M F 0805 2K2 5 8XF320 15 276 00010 44 FLTR XTL 21 4M 7 5KHZ PR 4POLE R837 036 14220 00 RES M F 0805 2K2 5 8XF320 20 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R840 036 14220 00 RES M F 0805 2K2 5 8XF320 23 276 00010 43 FLTR XTAL 21 4M 15KHZ PR 4POLE R841 036 14220 00 RES M F 0805 2K2 5 8XF320 25
157. 210 1 B2 2 C8 R368 2 F4 3 DO R717 1 J4 7 H7 R845 1 M4 8 05 T610 1 15 6 N2 R370 2 F4 3 E1 R718 1 J4 7 H7 R846 1 K2 8 04 R372 2 E5 3 G1 R719 1 J4 7 J6 R847 1 K2 8 04 TP206 1 05 2 H7 R374 2 F5 3 J2 R720 1 J3 7 K7 R848 1 L2 8 J4 TP305 1 E4 3 E5 R376 2 F5 3 J3 R721 1 J3 7 K9 R849 1 M4 8 Q3 TP308 1 E5 3 G5 R378 1 F5 3 J3 R722 1 33 7 K8 R850 1 K2 8 Q4 TP309 1 E8 3 R9 R380 1 F5 3 J4 R723 1 H3 7 M7 R853 1 M4 8 N3 TP310 1 E8 3 R9 R382 1 F5 3 K4 R725 1 J4 7 N7 R854 1 M4 8 N3 TP313 1 F8 3 C7 R384 2 E6 3 L3 R726 1 J3 7 N6 R855 1 M2 8 BO TP314 1 E8 3 F8 R386 2 E6 3 M2 R727 1 H3 7 N9 R859 1 N2 8 C1 TP401 1 67 4 E6 R388 1 F6 3 M4 R728 1 H3 7 N8 R861 1 N2 8 D1 TP402 1 F7 3 A9 R390 1 E6 3 Q3 R742 1 H2 7 B4 R863 1 N3 8 E1 TP409 1 19 4 P4 R392 1 E6 3 Q2 R743 1 H2 7 05 R865 1 N4 8 E0 TP410 1 M8 4 N6 R394 1 E6 3 Q3 R744 1 62 7 D4 R867 1 N3 8 E1 TP601 1 N5 6 K9 R396 1 E6 3 Q2 R746 1 H3 7 E4 R871 1 N3 8 G2 TP602 1 L6 6 R9 R405 1 H7 4 D4 R747 1 H3 7 E5 R872 1 M4 8 H1 TP603 1 15 6 J2 R410 1 J7 4 05 R748 1 J2 7 A1 R873 1 N3 8 G1 TP604 1 15 6 M6 R415 1 J7 4 D5 R749 1 J2 7 B1 R874 1 N3 8 HO TP607 1 L4 6 J9 R420 2 K8 4 G4 R750 1 H4 7 Q7 R875 1 N3 8 GO TP710 1 H4 7 H5 R425 1 M7 4 G5 R752 1 G4 7 F5 R876 1 N3 8 HO TP715 1 J2 7 C6 R430 1 M7 4 G5 R753 1 G4 7 F3 R877 1 M2 8 K2 Copyright TEL 30 04 98 C6 2 14 T836 PCB Information M830 00 30 04 98 Copyright TEL M830 00 T837 PCB Information C6 3 1 6 3 T837 Exciter PCB This section contains the following information
158. 215 052 08340 40 COIL A W 4T 4 0MM SMD 0 8MM C131 015 27100 10 CAP CER 0805 1M 80 20 Y5V 16V L217 052 08340 40 COIL A W 4T 4 0MM SMD 0 8MM C132 015 24100 08 CAP CER 0805 1N 10 X7R 50V L233 056 10330 02 L IND SMD 330NH C133 015 23680 08 CAP CER 0805 680P 10 X7R 50V L239 056 10330 02 L IND SMD 330NH 0137 015 23680 08 CAP CER 0805 680P 10 X7R 50V L241 052 08360 20 COIL A W 2T 6 0MM SMD 0 8MM C138 015 24470 08 CAP CER 0805 4N7 10 X7R 50V L243 052 08340 20 COIL A W 2T 4 0MM SMD 0 8MM C139 015 23680 08 CAP CER 0805 680P 10 X7R 50V L245 052 08345 10 COIL A W 1T 4 5MM SMD 0 8MM C141 014 07100 02 CAP TANT CHIP 1U0 3 2 X 1 6MM Da L247 052 08340 20 COIL A W 2T 4 0MM SMD 0 8MM C143 015 23680 08 CAP CER 0805 680P 10 X7R 50V L248 052 08345 10 COIL A W 1T 4 5MM SMD 0 8MM C145 015 23680 08 CAP CER 0805 680P 10 X7R 50V L249 052 08360 20 COIL A W 2T 6 0MM SMD 0 8MM C147 015 24470 08 CAP CER 0805 4N7 10 X7R 50V A 61030002 1 INDEMDS UNH C149 015 23680 08 CAP CER 0805 680P 10 X7R 50V C151 015 23680 08 CAP CER 0805 680P 10 X7R 50V iRi GK HEADER APARAT C153 015 23680 08 CAP CER 0805 680P 10 X7R 50V LINK2 036 10000 00 RES M F 0805 ZERO OHM C155 015 25100 08 CAP CER 0805 10N 10 X7R 50V Nene or HM ABELA WARG LMIG C159 015 23680 08 CAP CER 0805 680P 10 X7R 50V C161 015 23680 08 CAP CER 0805 680P 10 X7R 50V Ae ee eee ei CREA PL101 240 00010 55 PLUG 15 WD RANGE W W PNL MT dE e epa pe coa ant 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS bie Pa b Q113 00
159. 220 00 RES M F 0805 220E 5 R386 036 12470 00 RES M F 0805 47E 5 R791 036 13100 00 RES M F 0805 100E 5 R388 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 R792 036 14100 00 RES M F 0805 1K 5 23 07 99 Copyright TEL IPN 220 01390 03 M830 00 T837 PCB Information C6 3 31 Ref Var IPN Description Ref Var IPN Description R801 036 16150 00 RES M F 0805 150K 5 R802 036 15470 00 RES M F 0805 47K 5 R808 036 12100 00 RES M F 0805 10E 5 R809 036 14470 00 RES M F 0805 4K7 5 R810 036 14470 00 RES M F 0805 4K7 5 R811 036 14470 00 RES M F 0805 4K7 5 R812 036 14470 00 RES M F 0805 4K7 5 R813 036 14470 00 RES M F 0805 4K7 5 R815 036 15470 00 RES M F 0805 47K 5 R816 036 16150 00 RES M F 0805 150K 5 R818 036 14470 00 RES M F 0805 4K7 5 R819 036 14470 00 RES M F 0805 4K7 5 R821 036 15470 00 RES M F 0805 47K 5 R822 036 15470 00 RES M F 0805 47K 5 R824 036 14220 00 RES M F 0805 2K2 5 R825 036 14220 00 RES M F 0805 2K2 5 R826 036 14220 00 RES M F 0805 2K2 5 R827 036 14220 00 RES M F 0805 2K2 5 R828 036 14220 00 RES M F 0805 2K2 5 R829 036 14220 00 RES M F 0805 2K2 5 R830 036 14220 00 RES M F 0805 2K2 5 R831 036 14220 00 RES M F 0805 2K2 5 R832 036 14220 00 RES M F 0805 2K2 5 R833 036 14220 00 RES M F 0805 2K2 5 R835 036 14220 00 RES M F 0805 2K2 5 R836 036 14220 00 RES M F 0805 2K2 5 R837 036 14220 00 RES M F 0805 2K2 5 R840 036 14220 00 RES M F 0805 2K2 5 R841 036 14220 00 RES M F
160. 22150 01 CAP CER 0805 15P 5 NPO 50V C6 D 015 22220 01 CAP CER 0805 22P 5 NPO 50V C7 A 015 22270 01 CAP CER 0805 27P 5 NPO 50V C7 B 015 22330 01 CAP CER 0805 33P 5 NPO 50V C7 Cc 015 22270 01 CAP CER 0805 27P 5 NPO 50V C7 D 015 22330 01 CAP CER 0805 33P 5 NPO 50V C8 015 23120 01 CAP CER 0805 120P 5 NPO 50V C9 015 23680 08 CAP CER 0805 680P 10 X7R 50V C10 015 21220 01 CAP CER 0805 2P2 1 4P NPO 50V C11 015 23680 08 CAP CER 0805 680P 10 X7R 50V C12 015 23680 08 CAP CER 0805 680P 10 X7R 50V C13 025 08100 02 CAP TANT BEAD 10M 10 16V C14 015 23680 08 CAP CER 0805 680P 10 X7R 50V C15 015 23680 08 CAP CER 0805 680P 10 X7R 50V C16 015 22560 01 CAP CER 0805 56P 5 NPO 50V C17 015 22560 01 CAP CER 0805 56P 5 NPO 50V C18 015 23680 08 CAP CER 0805 680P 10 X7R 50V C19 015 05470 08 CAP CER 1206 47N 10 X7R 50V C20 015 23680 08 CAP CER 0805 680P 10 X7R 50V C21 015 23680 08 CAP CER 0805 680P 10 X7R 50V C22 015 23680 08 CAP CER 0805 680P 10 X7R 50V C23 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V C24 015 21680 01 CAP CER 0805 6P8 1 4P NPO 50V C25 015 23680 08 CAP CER 0805 680P 10 X7R 50V C26 A 036 10000 00 RES M F 0805 ZERO OHM C26 B 036 10000 00 RES M F 0805 ZERO OHM C26 Cc 036 10000 00 RES M F 0805 ZERO OHM C26 D 036 10000 00 RES M F 0805 ZERO OHM Cvi 028 02111 00 16PF TRM CAP PISTON PREC D1 001 00012 63 S DIODE VARICAP BB809 D2 001 00012 63 S DIODE VARICAP BB809 D3 001 00012 63 S DIODE VARICAP BB809 D4 001 00012 63 S DI
161. 222 1 05 2 G7 30 04 98 Copyright TEL M830 00 T839 PCB Information D5 3 1 5 3 1839 Power Amplifier PCB This section contains the following information Section 220 01404 03 Parts List Mechanical amp Miscellaneous Parts Mechanical Assemblv Grid Reference Index PCB Layout Bottom Side PCB Layout Top Side Control Section Circuit Diagram RF Thermistor Control Sections Circuit Diagram Copyright TEL 30 04 98 D5 3 2 T839 PCB Information M830 00 30 04 98 Copyright TEL M830 00 IPN 220 01404 03 T839 PCB Information D5 3 3 T839 Parts List IPN 220 01404 03 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The miscellaneous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend column indicates their position in the mechanical
162. 223 1 J4 2 K2 R119 1 D4 1 07 C159 1 B3 1 H2 C261 1 F6 2 04 L230 1 L4 2 13 R120 1 E3 1 H7 C161 1 84 1 K4 C268 1 E6 2 S2 L231 114 2 12 R121 1 04 1 07 C162 1 83 1 L4 C270 1 06 2 12 L233 1 F6 2 Q3 R122 1 04 1 D6 C164 1 B3 1 4 C271 1 06 2 72 L236 1 H6 2 M2 R123 1 84 1 H7 C165 1 B3 1 M4 C272 1 86 2 U2 L239 TES 2R2 R124 1 84 _ 1 H8 C167 1 K3 1 P3 C273 1 86 2V2 L241 1 06 2 S3 R125 1 B4 1 H8 C169 1 K3 1 P3 C294 1 D6 2 R1 L243 1 06 2 T3 R126 1 83 _ 1 H6 C171 1K3 1 03 C295 1D6 2 R1 L245 1 07 2 2 R127 1A3 1 H7 C173 1 04 1 B0 C297 1 05 218 L247 1 06 2 U3 R128 1 A3 1 37 C174 1 E4 1 B0 C298 1 06 2 18 L248 1 07 2 U2 R129 1 B4 1 J9 C176 1 D4 1 E0 D101 1 83 1 H5 L249 1 86 2 V3 R130 1 84 1 J8 C178 1 04 1 FO D101 1 83 1 G5 L264 1 06 2 18 R131 1 A3 1 37 C179 1 03 1 G2 D103 1 P7 1 59 LINK1 1 D3 1 LO R132 1B5 1 J8 C180 1 E2 1 H0 D105 1 02 1 J2 LINK2 1 P6 1 D1 R133 1 A3 1 K7 C181 1 03 1 G0 D105 1 62 1 J2 LINK201 1 05 2 F8 R134 1 83 1 K6 C182 1 D3 1 Hi D107 1P7 O 1 K5 P101 1 A5 1 R9 R135 1 P7 1 KO C184 1 04 1 G0 D109 1 P6 145 P103 1K3 1 R0 R136 1 A3 1 K7 C185 1D2 1 1 D111 1 C2 1 Mi P105 1 K2 1 R0O R137 1 83 1 K6 C186 1 E2 1 J0 D111 1 C2 1 Mi P201 1 86 2 V3 R138 1 84 1 L6 Copyright TEL 30 04 98 IPN 220 01404 03 D5 2 10 T838 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R141 1 E3 1 C6 R223 1 F2 2 P2 R142 1 E3 1 E7 R224 1 04 2 G7 R143 1 E4 1 F6 R225 1 E6 2 R3 R144 1 03
163. 23 07 99 fold out 23 07 99 fold out 23 07 99 fold out 23 07 99 fold out 23 07 99 fold out 23 07 99 23 07 99 30 04 98 30 04 98 Page 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 3 1 3 2 4 1 4 2 5 1 5 2 Part H NOo0XNOQO 0140NAa Rhin 2 O NN LH Part I 1 1 1 2 2 1 2 2 2 3 Issue Date 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 23 07 99 30 04 98 23 07 99 30 04 98 23 07 99 30 04 98 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 23 07 99 30 04 98 30 04 98 blank blank blank blank blank blank 23 07 99 Copyright TEL M830 00 11 Page Issue Date Page Issue Date 2 4 30 04 98 2 5 23 07 99 2 6 30 04 98 2 7 30 04 98 2 8 30 04 98 blank 3 1 23 07 99 3 2 30 04 98 3 3 30 04 98 3 4 30 04 98 3 5 30 04 98 3 6 30 04 98 blank Copyright TEL 23 07 99 12 M830 00 23 07 99 Copyright TEL M830 00 AI PartA Introduction To Servicing This part of the manual is divided into the sections listed below These sections provide some general and advisorv information on servicing procedures and a brief historv of PGM800Win programming software Section Title Page General Additional Technical Information Caution CMOS Devices Cau
164. 249 2 B6 2 J3 IC850 1 M3 8 MO PL270 1 02 2 L1 R251 2 B7 2 13 D111 1 P4 1 R1 1C850 1 M3 8 M2 R252 2 B7 2 13 D220 2 D8 2 E4 Q210 2 06 2 J8 R254 2 B7 2 13 D220 2 D8 2 E4 L230 1 D2 2 K2 Q220 2 05 2 M6 R255 2 B7 2 M3 D230 2 06 2 J5 L310 1 F8 3 B7 Q230 2 05 2 N6 R256 2 B6 2 M3 D230 2 06 2 J4 L320 1 F8 3 C7 Q240 2 08 2 H4 R258 2 B6 2 N3 D240 2 08 2 D3 L330 1 F7 3 G7 Q245 2 B6 2 J4 R260 2 B5 2 P2 D240 2 08 2 D2 L340 1 F7 3 J7 Q250 2 B8 2 G2 R261 2 B4 2 Q3 D250 1 B7 2 H1 L350 1 F5 3 P7 Q255 2 B7 2 H2 R262 2 B3 2 Q3 D260 2 A7 2 H1 L360 1 E5 3 F2 Q260 2 B7 2 KO R264 2 B8 2 A3 D270 2 B7 2 J1 L410 1 M8 4 05 Q270 2 02 2 K0 R265 2 B8 2 A2 D270 2 B7 2 H1 L420 1 L8 4 D5 Q280 2 B7 2 12 R266 2 B8 2 B2 D280 1 B7 2 K1 L430 1 18 4 F4 Q290 2 B6 2 M2 R267 2 08 2 C3 D285 1 D2 2 11 L440 1 M7 4 G6 Q310 1 F8 3 C7 R269 2 08 2 B1 D289 1 02 2 KO L450 1 K8 4 G5 Q320 2 F6 3 17 R271 2 D3 2 A0 D290 1 02 2 L0 L460 1 J8 4 K4 Q330 2 F6 3 M7 R272 2 C4 2 B1 D295 1 02 2 L0 L470 1 H8 4 M4 Q340 2 E7 3 M2 R273 2 04 2 C1 D310 2 E8 3 P2 L480 1 G8 4 P4 Q350 2 E7 3 P2 R275 2 04 2 C1 D310 2 E8 3 P2 L490 1 68 4 Q4 Q410 2 18 4 F5 R277 2 04 2 C0 D610 1 N5 6 L6 L750 1 G4 7 RO Q420 2 K8 4 G4 R278 2 04 2 C1 D610 1 N5 6 M6 L910 1 P6 9 F7 Q540 1 K5 5 K2 R280 2 08 2 D3 D640 1 15 6 M1 L920 1 P7 9 G7 Q620 1 N6 6 P8 R281 2 08 2 D2 D640 1 15 6 M2 L930 1 P8 9 H7 Q630 1 M6 6 P5 R282 2 B8 2 E2 D730 1 H3 7 H1 Q660 1 15 6 N1 R284 2 08 2 F3 D740 1 H3 7 K2 P100 1 P6 1 R8 Q670 1 L6 6 Q2 R285 2 B8 2 F2 D820 1 J3 8 B7 P1
165. 25100 08 CAP CER 0805 10N 10 X7R 50V C399 015 25470 08 CAP CER 0805 47N 10 X7R 50V C274 015 06100 08 CAP CER 1206 100N 10 X7R 50V C402 015 22390 0 CAP CER 0805 39P 5 NPO 50V C276 015 25470 08 CAP CER 0805 47N 10 X7R 50V C404 015 21560 0 CAP CER 0805 5P6 1 4P NPO 50V C278 015 06100 08 CAP CER 1206 100N 10 X7R 50V C406 015 22150 0 CAP CER 0805 15P 5 NPO 50V C280 015 25470 08 CAP CER 0805 47N 10 X7R 50V C408 015 22150 0 GAP CER 0805 15P 5 NPO 50V C286 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C410 015 22390 0 GAP CER 0805 39P 5 NPO 50V C301 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C412 015 22120 0 GAP CER 0805 12P 5 NPO 50V C303 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C414 015 22330 0 CAP CER 0805 33P 5 NPO 50V C305 020 08100 04 CAP ELE RA 10M 16V 4X7MM C416 015 22390 0 CAP CER 0805 39P 5 NPO 50V C307 015 24100 08 CAP CER 0805 1N 10 X7R 50V C418 015 21560 0 CAP CER 0805 5P6 1 4P NPO 50V C309 015 22330 01 CAP CER 0805 33P 5 NPO 50V C420 015 22150 0 CAP CER 0805 15P 5 NPO 50V C311 015 22390 01 CAP CER 0805 39P 5 NPO 50V C422 015 22150 0 CAP CER 0805 15P 5 NPO 50V amp C313 0 015 22270 01 CAP CER 0805 27P 5 NPO 50V C424 015 22390 0 CAP CER 0805 39P 5 NPO 50V amp C313 3 015 22270 01 CAP CER 0805 27P 5 NPO 50V C428 015 22220 0 CAP CER 0805 22P 5 NPO 50V amp C313 5 015 22390 01 CAP CER 0805 39P 5 NPO 50V C430 015 23680 08 CAP CER 0805 680P 10 X7R 50V amp C313 20 015 22270 01 CAP CER 0805 27P 5 NPO 50V C432 015 06100 08 CAP CER 1206 100N
166. 3 3 1 Introduction When you receive your T835 receiver it will be run up and working on a particular fre quency the default channel If you want to switch to a frequency that is within the 3MHz switching range i e 1 5MHz from the factory programmed frequency you should only need to reprogram the receiver with the PGM800Win software refer to the PGM800Win programming kit and Section 3 2 below However if you want to switch to a frequency outside the 3MHz switching range you will have to reprogram and re tune the receiver to ensure correct operation In this case you should carry out the short tuning procedure described in Section 3 4 If you have carried out repairs or other major adjustments you must carry out the full tuning and adjustment procedure described in this section except for Section 3 4 3 2 Channel Programming You can program up to 128 channel frequencies into the receiver s EEPROM memory IC820 by using the PGM800Win software package and an IBM PC You can also use PGM800Win to select the receiver s current operating frequency or default channel If the receiver is installed in a rack frame you can program it via the programming port in the speaker panel However you can also program the receiver before it is installed in a rack frame as follows e by using a T800 01 0010 calibration test unit e via D range 1 e via D range 2 standard T800 03 0000 auxiliary D range only e via SK805
167. 3 0558 Singapore Tait Electronics Far East Pte Ltd Taiwan Tait Mobile Taiwan Ltd 1104 No 142 Chung Hsiao E Rd Sec 4 Taipei Taiwan Phone 886 2 2731 1290 Fax 886 2 2711 6351 Thailand Tait Mobile Radio Ltd 14 1 Suwan Tower Third Floor Soi Saladaeng 1 North Sathorn Road Bangrak Bangkok 10500 Thailand Phone 662 267 6290 Fax 662 267 6293 United Kingdom Tait Europe Ltd Ermine Business Park Ermine Road Huntingdon Cambridgeshire PE18 6YA United Kingdom Phone 44 1480 52255 Fax 44 1480 411996 USA Tait Electronics USA Inc 9434 Old Katy Road Suite 110 Houston Texas 77055 USA Phone 1 713 984 8684 Toll Free 1 800 222 1255 Fax 1 713 468 6944 Internet http www taitworld com Beijing Representative Office 4 Leng Kee Road Room 812 Tower A SIS Building 05 11A Beijing Bright China Singapore 159088 Chang An Building Phone 65 471 2688 No 7 Jianguomennei Dai Jei Fax 65 479 7778 Dongcheng District Beijing China 100005 23 07 99 Copyright TEL M830 00 3 About This Manual Scope This manual contains general technical and servicing informa tion on T830 Series II 25W 50W and 100W base stations which comprise the following equipment 25W base station 1835 receiver 1836 25W transmitter 50W base station 1835 receiver 1837 exciter 1838 50W power amplifier 100W base station T835 receiver 1837 exciter T839 100W power amplifier Format We
168. 3 8 P7 SK531 1 K6 5 N6 R685 1 L5 6 N2 R840 1 K3 8 P7 SK532 1 K5 5 N5 R689 1 L6 6 Q3 R841 1 K3 8 P7 SK533 1 K5 5 N4 R693 1 L6 6 Q1 R842 1 K3 8 P6 SK534 1 K5 5 N3 R696 1 L6 6 Q1 R843 1 K3 8 P6 SK535 1 K5 5 N2 R701 1 J4 7 A9 R844 1 L2 8 M5 SK805 1 K3 8 Q5 R702 1 J4 7 C9 R845 1 L2 8 M5 SK805 1 K3 8 Q6 R703 1 J4 7 08 R846 1 L4 8 L6 SK805 1 K3 8 Q7 R706 1 33 7 B6 R847 1 L4 8 M6 SK805 1 K3 8 Q8 R707 1 33 7 C7 R848 1 L4 8 Q5 SK805 1 K3 8 Q9 R708 1 J2 7 D7 R849 1 J2 8 Q5 SK810 1 L3 8 H5 Copyright TEL 30 04 98 B6 2 14 T835 PCB Information M830 00 30 04 98 Copyright TEL M830 00 CI PartC 1836 Transmitter 8 T837 Exciter This part of the manual is divided into six sections as listed below There is a detailed table of contents at the start of each section Section 1 2 3 4 5 6 General Information Circuit Operation Initial Tuning r Adjustment Functional Testing Fault Finding PCB Information Copyright TEL 30 04 98 CII M830 00 30 04 98 Copyright TEL M830 00 T836 837 General Information C1 1 1 1836 837 General Information This section provides a brief description of the T836 transmitter and T837 exciter along with detailed specifications and a list of tvpes available The following topics are covered in this section Section Introduction Specifications Introduction General RF Section Audio Processor Inputs Modulation Characteristics C
169. 3 P835 1 14 8 M7 R216 1 03 2 K7 D630 1 M5 6 G3 L370 1 E5 3 M2 P840 1 14 8 M7 R217 1 A4 2 M8 D635 1 M4 6 G3 L375 1 E6 3 M4 R218 1 A4 2 N7 D640 1 L5 6 M2 L380 1 F6 3 N4 PL100 1 P3 1 FO R219 1 B4 2 N8 D640 1 L5 6 M1 L385 1 F6 3 P3 PL205 1 C5 2 J8 R221 1 B7 2 R7 D710 1 33 7 L8 L400 1 H8 4 C4 PL210 1 03 2 H4 R223 1 B4 2 K6 D710 1 33 7 L8 L405 2 H8 4 C4 PL215 1 04 2 K3 R224 1 04 2 K5 D720 1 H3 7 P8 L410 1 H8 4 D4 PL220 1 04 2 H2 R225 1 B4 2 15 D720 1 H3 7 P8 L415 1 H8 4 D3 R226 1 B4 2 14 D730 1 H3 7 H1 L420 1 J7 4 E6 Q210 1 C6 2 J8 R227 1 B4 2 M4 D740 1 H3 7 K2 L425 1 57 4 E5 Q220 1 B3 2 17 R229 1 B4 2 M7 D810 1 M2 8 B7 L430 2 K8 4 F4 Q230 1 A4 2 M8 R230 1 B4 2 M6 L435 2 K8 4 F4 Q240 1 B7 2 Q7 R231 1 B4 2 M6 IC210 1 C7 2 HO L440 1 J8 4 G4 Q250 1 B7 2 R5 R232 1 B4 2 M5 IC210 1 07 2 00 L445 1 M7 4 H6 Q260 1 04 2 F3 R233 1 B4 2 M6 IC210 1 07 2 K2 L450 1 17 4 H5 Q270 1 D2 2 D1 R235 1 B4 2 P6 IC210 1 C7 2 C6 L455 1 L7 4 H5 Q305 1 F8 3 G7 R237 1 B7 2 Q7 IC210 1 C7 2 11 L460 2 18 4 J5 Q310 1 F9 3 M8 R238 1 B7 2 R7 IC220 1 D6 2 PO L465 1 M8 4 J5 Q315 1 F8 3 P8 R239 1 B8 2 R6 IC220 1 06 2 M3 L470 1 M8 4 15 Q320 2 E5 3 A5 R241 1 B8 2 06 IC220 1 D6 2 D5 L475 1 M8 4 N6 Q325 2 E4 3 05 R242 1 B7 2 05 IC230 1 B4 2 G0 L480 1 N8 4 N4 Q330 2 E4 3 D4 R244 1 C6 2 A5 IC230 1 B4 2 JO L485 1 M9 4 N4 Q335 2 E4 3 E5 R245 1 D4 2 D4 IC230 1 B4 2 15 L490 1 J9 4 N8 Q340 1 E7 3 H6 R247 1 D3 2 E4 IC230 1 B4 2 N6 L495 1 68 4 N1 Q345 1 E7 3 J5 R248 1 03 2 E3 IC230 1 B4 2 G1 L750 1 G4 7 RO
170. 3 PLG COAX MINI PIN CRIMP 1 5D 365 00100 20 LABEL WHITE S A 28X11MM Coax from BNC connector to SK201 365 01391 01 LABEL 30X10 8 T MARK VOID 240 02010 54 SKT 15W DRANGE PNL MTG 125 C Matching socket for D range plug PL101 365 01539 00 LABEL WARNING 120W PWR CLAMP 240 02100 06 31 SKT COAX N TYPE PNL MTG OP TER 369 00010 14 TIE CABLE NYLON 100X2 6MM 240 02100 17 33 SKT COAX BNC PNL JAC CRP RG316 399 00010 56 BAG PLASTIC 200X250MM 240 04020 62 SKT 2 W RECEP SHORTING LINK 400 00020 07 SLEEVING 2MM SIL RUBBER LINK1 400 00020 30 HEATSHRINK 3MM 240 06010 14 CLAMP LATCHING 15 W D RANGE Cover for D range socket 410 00010 43 PKG T296 AMPAC REF 73 46 240 06010 15 29 BLOCK LATCHING 15W D RANGE 240 06010 44 30 HOOD CONN UHF 8 N TYPE 258 00010 03 37 FAN 12V 119X119X25MM TUBE AX 302 05204 00 34 BRKT A3M2314 F THRU MTG 303 23146 00 48 COVER SIDE T838 9 PA 308 01007 01 45 HANDLE BASE STATION SERIES II 308 13122 02 5 HEATSINK T838 9 PA COMPLETE 308 13125 00 6 HEATSINK T839 COUPLER 316 06651 00 42 PANEL PA 100W REAR DRV SER II 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T839 PCB Information D5 3 7 replace A4 pages D5 3 7 D5 3 8 with A3 pages D5 3 7 D5 3 8 Copyright TEL 30 04 98 IPN 220 01404 03 D5 3 8 T839 PCB Information M830 00 replace A4 pages D5 3 7 D5 3 8 with A3 pages D5 3 7 D5 3 8 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T839 PCB Information D5 3 9 T839 Grid Reference Index IPN 220 01404 03 How To
171. 30 04 98 5 1 6 30 04 98 1 1 30 04 98 19 30 04 98 blank 5 2 1 30 04 98 1 3 30 04 98 fold out 5 2 2 30 04 98 blank 1 4 30 04 98 fold out 5 2 3 23 07 99 1 5 30 04 98 52 4 30 04 98 1 6 23 07 99 5 2 5 30 04 98 1 7 23 07 99 5 2 6 30 04 98 1 8 30 04 98 52 7 30 04 98 fold out 1 9 23 07 99 5 2 8 30 04 98 fold out blank 1 10 23 07 99 5 2 9 30 04 98 5 2 10 30 04 98 2 1 23 07 99 5 2 11 30 04 98 fold out 2 2 30 04 98 blank 5 2 12 23 07 99 fold out 2 3 23 07 99 5 2 13 30 04 98 fold out 2 4 30 04 98 5 2 14 30 04 98 fold out 2 5 23 07 99 2 6 30 04 98 5 3 1 30 04 98 2 7 23 07 99 5 3 2 30 04 98 blank 2 8 23 07 99 5 3 3 23 07 99 5 3 4 30 04 98 3 1 23 07 99 5 3 5 30 04 98 3 2 30 04 98 blank 5 3 6 30 04 98 3 3 30 04 98 5 3 7 30 04 98 fold out 3 4 30 04 98 5 3 8 30 04 98 fold out blank 3 5 30 04 98 5 3 9 30 04 98 Copyright TEL 23 07 99 10 M830 00 Page 5 3 10 5 3 11 5 3 12 5 3 13 5 3 14 Part E 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 Part F 1 1 1 2 2 1 2 2 3 1 3 2 4 1 4 2 Part G Issue Date 30 04 98 30 04 98 fold out 23 07 99 fold out 30 04 98 fold out 30 04 98 fold out 30 04 98 30 04 98 blank 30 04 98 30 04 98 30 04 98 30 04 98 blank 30 04 98 30 04 98 blank 23 07 99 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 30 04 98 fold out 30 04 98 fold out blank 23 07 99 23 07 99 23 07 99 fold out
172. 36 15150 00 RES M F 0805 15K 5 R380 030 53180 20 RES FILM Al 180E 5 0 4W 4X1 6 amp R265 15 036 15180 00 RES M F 0805 18K 5 R382 030 53180 20 RES FILM Al 180E 5 0 4W 4X1 6 amp R265 20 036 15150 00 RES M F 0805 15K 5 R384 036 11330 00 RES M F 0805 3E3 5 amp R265 23 036 15150 00 RES M F 0805 15K 5 R386 036 12470 00 RES M F 0805 47E 5 8R265 25 036 15180 00 RES M F 0805 18K 5 R388 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 8R266 10 036 15470 00 RES M F 0805 47K 5 R390 030 52180 20 RES FILM Al 18E 5 0 4W 4X1 6 8R266 13 036 15470 00 RES M F 0805 47K 5 R392 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 8R266 15 036 15560 00 RES M F 0805 56K 5 R394 030 52180 20 RES FILM Al 18E 5 0 4W 4X1 6 8R266 20 036 15470 00 RES M F 0805 47K 5 R396 030 53560 20 RES FILM Al 560E 5 0 4W 4X1 6 8R266 23 036 15470 00 RES M F 0805 47K 5 R405 032 32100 00 RES M F PWR 10E 5 1W 10X4MM amp R266 25 036 15560 00 RES M F 0805 56K 5 R410 030 51330 20 RES FILM Al 3E3 5 0 4W 4X1 6 R267 036 14220 00 RES M F 0805 2K2 5 R415 032 33150 00 RES M F PWR 150E 5 1W 12X4 5 R268 036 13100 00 RES M F 0805 100E 5 R420 030 52100 20 RES FILM Al 10E 5 0 4W 4X1 6 R269 036 15100 00 RES M F 0805 10K 5 R425 030 52100 20 RES FILM Al 10E 5 0 4W 4X1 6 R270 036 13470 00 RES M F 0805 470E 5 R430 030 52100 20 RES FILM Al 10E 5 0 4W 4X1 6 R271 036 16390 00 RES M F 0805 390K 5 R435 032 33180 00 RES M F PWR 180E 5 1W 12X4 5 R272 036 13560 00 RES M F 0805 560E 5 R440 036 14470 00 RES M F 0805
173. 36 837 General Information M830 00 1 4 T836 Standard Product Range The following table lists the range of standard T836 types i e no options fitted availa ble at the time this manual was published Consult your nearest Tait Dealer or Cus tomer Service Organisation for more information Frequency Range MHz 136 156 Deviation kHz 2 5 2 5ppm 30 C to 60 C e Transmitter Type T836 16 0000 15 0000 13 0000 10 0000 Frequency Range MHz 148 174 Deviation kHz 2 5 2 5ppm 30 C to 60 C e Transmitter Type T836 26 0000 25 0000 23 0000 20 0000 a A TCXO with a stability of 1ppm 0 C to 60 C is available to suit specific requirements Contact your nearest authorised Tait Dealer or Customer Service Organisation for further details b United States market only You can identify the transmitter type by checking the product code printed on a label on the rear of the chassis Figure 1 1 in Part A shows typical labels You can further verify the transmitter type by checking the placement of an SMD resistor in the table that is screen printed onto the PCB refer to Section 6 1 for more details 23 07 99 Copyright TEL M830 00 T836 837 General Information C1 15 1 5 T837 Standard Product Range The following table lists the range of standard T837 types i e no options fitted availa ble at the time this manual was published Consult your nearest Tait Dea
174. 39 1 04 2 L4 C373 1 E6 3 14 C733 1 J3 7 M5 D270 1 D2 2 C1 C241 1 B4 2 M6 C376 2 F8 3 L4 C735 1 J2 7 A1 D270 1 D2 2 C1 C242 1 B3 2 L6 C379 2 F5 3 K3 C736 1 J2 7 B1 D340 2 F4 3 D2 C243 1 B4 2 P6 C382 2 E5 3 12 C740A 1 H2 7 B4 D350 2 F4 3 E2 C245 1 05 2 A4 C385 1 F6 3 P4 C740B 1 H2 7 B3 D360 2 F4 3 E2 C247 1 D4 2 B4 C388 2 F7 3 P4 C741A 1 H2 7 C4 D610 1 N6 6 L6 C249 1 D4 2 C4 C391 2 E6 3 P2 C741B 1 62 7 C3 D610 1 N6 6 K6 C251 1 C3 2 E4 C394 2 E6 3 P3 C742A 1 H2 7 D4 D620 1 N4 6 B1 C253 1 03 2 E3 C396 2 E6 3 Q3 C742B 1 H3 7 D3 D620 1 N4 6 B2 C255 1 D3 2 D2 C399 2 E5 3 R4 C743 1 H2 7 B1 D630 1 M5 6 G2 C257 1 D3 2 F2 C503 1 K6 5 L9 C745 1 G3 7 D1 D630 1 M5 6 G3 C259 1 06 2 32 C505 1 K6 5 M6 C750 1 H4 7 Q7 D635 1 M4 6 G3 C260 1 D8 2 GO C510 1 J5 5 CO C757 1 G4 7 F5 D640 1 L5 6 M1 C261 1 06 2 K2 C513 1 H5 5 G2 C759 1 G4 7 G4 D640 1 15 6 M2 C263 1 06 2 L3 C535 1 K5 5 M2 C761 1 G3 7 J4 D710 1 J3 7 L8 C265 1 D6 2 N4 C550 1 K4 5 LO C762 1 G3 7 K4 D710 1 J3 7 L8 C267 1 08 2 P3 C605 1 L6 6 D8 C764 1 H3 7 32 D720 1 H3 7 P8 8C269 1 08 2 P3 C610A 1 M5 6 F8 C765 1 G3 7 K2 D720 1 H3 7 P8 C271 1 C8 2 Q3 C610B 1 M5 6 G8 C767 1 H3 7 K3 D730 1 H3 7 H1 C273 1 08 2 04 C611A 1 L5 6 H8 C769 1 H4 7 N4 D730A 1 H3 7 K1 C275 1 D3 2 E1 C611B 1 M5 6 J8 C770 1 H4 7 N4 D740 1 H3 7 K2 C277 1 04 2 G1 C623 1 M6 6 N8 C772 1 G4 7 N2 D740A 1 H3 7 K1 C279 1 B4 2 G1 C625 1 M6 6 Q8 C774 1 H4 7 P2 D810 1 M2 8 B7 C281 1 B5 2 31 C626 1 M6 6 R8 C776 1 H4 7 N1 D810A 1 M2 8 B7 C283 1 B5 2 KO C628 1 M
175. 3X6MM P POZ ST BZ 349 00020 36 15 SCREW TT M3X8m PANTORX BLK 349 00020 43 16 SCRW T T M4X12MM P POZ BZ 349 00020 45 17 SCRW T T M4X20MM P POZ BZ 350 00016 42 18 SPACER 5MM HI 8MM ST 2 5MM HO 352 00010 08 19 NUT M3 COLD FORM HEX ST BZ 352 00010 29 20 NUT M4 NYLOC HEX 353 00010 10 21 WSHR M3 FLAT 7MMX0 6MM ST BZ 353 00010 13 22 WSHR M3 S PROOF INT BZ 353 00010 24 WSHR M4X8MM FLAT Fitted under handle lock nuts 362 00010 23 23 GASKET SIL TO 220 CLIP MTG 362 00010 33 24 GROMMET LED MTG 3MM 362 01101 00 GASKET INSUL SIL PAD 2000 TO5 Under Q370 365 00100 09 LABEL WHITE VINYL 15X11MM S A 365 00100 20 LABEL WHITE S A 28X11MM 365 01541 00 LABEL TX RX EX TYPE APR SER NO 400 00020 07 SLEEVING 2MM SIL RUBBER 410 01081 01 CRT T800 SERIES Il 23 07 99 Copyright TEL M830 00 T837 PCB Information C6 3 33 replace A4 pages C6 3 33 C6 3 34 with A3 pages C6 3 33 C6 3 34 Copyright TEL 23 07 99 C6 3 34 T837 PCB Information M830 00 replace A4 pages C6 3 33 C6 3 34 with A3 pages C6 3 33 C6 3 34 23 07 99 Copyright TEL IPN 220 01390 03 M830 00 T837 PCB Information C6 3 35 T837 Grid Reference Index IPN 220 01390 03 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and
176. 40 00100 43 240 02100 06 240 04020 62 303 11169 03 303 23118 00 303 50074 00 303 50078 00 308 01007 01 308 13090 00 312 01052 01 312 01053 01 316 06621 00 319 01152 00 345 00040 10 349 00020 36 349 00020 43 349 00020 45 350 00016 42 352 00010 08 352 00010 29 352 00010 35 353 00010 10 353 00010 13 353 00010 24 28 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 CAP CER F THRU 1N5 NO LEAD 362 00010 08 Fitted to D range pins SOLDER SPRING 1 3MM A4M1877 362 00010 23 26 Support for front panel LED solder joints 362 00010 33 27 BEAD FER 7D 1 9X0 9X3 8 Fitted to D range pins 365 0001 1 53 WIRE T C 0 5 365 00100 09 For ferrite beads 365 00100 20 WIRE T C 7 0 2 PVC RED Front panel LEDs 365 01541 00 WIRE T C 7 0 2 PVC BLACK 399 00010 51 Front panel LEDs 400 00020 07 COAX 50 OHM RG316 U PTFE Connects SK310 to SK420 410 01081 01 STRIP CU 3X0 35 SLOT CAR TRACK Soldered to printed inductor L950 410 01082 01 PCB T83X VCO PCB T836 SERIES II BUTTON 232 00010 26 SWITCH PLUG 15 W D RANGE W W PNL MT PL100 PLG COAX MINI PIN CRIMP 1 5D For coax connecting SK310 to SK420 SKT COAX N TYPE PNL MTG OP TER SKT 2 W RECEP SHORTING LINK PL205 210 215 220 CHASSIS PAINTED T800 SERIES COVER A3M2247 D RANGE CLIP A3M2246 SPRING CLAMP CLIP A4M2630 SPR CABLE CLAMP HANDLE BASE STATION SERIES II HSINK A4M2361 BRKT COPPER LID TO
177. 4560 00 RES M F 0805 5K6 5 R715 036 14100 00 RES M F 0805 1K 5 R298 036 16100 00 RES M F 0805 100K 5 R717 036 14270 00 RES M F 0805 2K7 5 R299 036 14270 00 RES M F 0805 2K7 5 R718 036 15560 00 RES M F 0805 56K 5 R302 036 15220 00 RES M F 0805 22K 5 R719 036 15560 00 RES M F 0805 56K 5 R304 036 14270 00 RES M F 0805 2K7 5 R720 036 15390 00 RES M F 0805 39K 5 R306 036 15100 00 RES M F 0805 10K 5 R721 036 15100 00 RES M F 0805 10K 5 R308 036 16100 00 RES M F 0805 100K 5 R722 036 15100 00 RES M F 0805 10K 5 R310 036 15220 00 RES M F 0805 22K 5 R723 036 14270 00 RES M F 0805 2K7 5 R312 036 14150 00 RES M F 0805 1K5 5 R725 036 15390 00 RES M F 0805 39K 5 R314 036 13150 00 RES M F 0805 150E 5 R726 036 13100 00 RES M F 0805 100E 5 R316 036 15100 00 RES M F 0805 10K 5 R727 036 15100 00 RES M F 0805 10K 5 R318 036 14220 00 RES M F 0805 2K2 5 R728 036 15100 00 RES M F 0805 10K 5 R320 036 14100 00 RES M F 0805 1K 5 R742 036 13150 00 RES M F 0805 150E 5 R322 036 12220 00 RES M F 0805 22E 5 R743 036 13150 00 RES M F 0805 150E 5 R324 036 13470 00 RES M F 0805 470E 5 R744 036 12220 00 RES M F 0805 22E 5 R326 036 13470 00 RES M F 0805 470E 5 R746 036 12220 00 RES M F 0805 22E 5 R328 036 13470 00 RES M F 0805 470E 5 R747 036 12220 00 RES M F 0805 22E 5 R330 036 12220 00 RES M F 0805 22E 5 R748 036 15470 00 RES M F 0805 47K 5 R332 036 15470 00 RES M F 0805 47K 5 R749 036 15470 00 RES M F 0805 47K 5 R334 036 15100 00 RES M F 0805 10K 5
178. 4U7 3 5 X 2 8MM L350 050 00016 58 COIL TAIT 658 2MH IF 7 5 7 5 C767 015 24100 08 CAP CER 0805 1N 10 X7R 50V L360 050 00016 31 COIL TAIT NO 631 455KHZ C769 015 24100 08 CAP CER 0805 1N 10 X7R 50V L410 050 00016 59 COIL 659 RF 3 5T SLUG CAN C770 014 08220 01 L CAP TANT 22UF10V276MSER L420 050 00016 59 COIL 659 RF 3 5T SLUG CAN C772 014 08220 01 L CAP TANT 22UF10V276MSER L430 052 08135 65 COIL A W 6 5T 3 5MM HOR 0 8MM C774 022 06330 03 CAP METPOLY330N 10 50V 5 L S L440 056 00021 04 IND FXD 330NH AX C776 015 25150 08 CAP CER 0805 15N 10 X7R 50V L450 056 00021 04 IND FXD 330NH AX C782 015 24100 08 CAP CER 0805 1N 10 X7R 50V L460 050 00016 59 COIL 659 RF 3 5T SLUG CAN C784 015 24100 08 CAP CER 0805 1N 10 X7R 50V L470 050 00016 59 COIL 659 RF 3 5T SLUG CAN C786 015 06100 08 CAP CER 1206 100N 10 X7R 50V L480 056 00021 04 IND FXD 330NH AX C788 015 24100 08 CAP CER 0805 1N 10 X7R 50V L490 056 00021 04 IND FXD 330NH AX C790 015 24100 08 CAP CER 0805 1N 10 X7R 50V L750 056 10068 00 IND FXD SMD 68NH 3 2 2 5 1 6 C792 015 24100 08 CAP CER 0805 1N 10 X7R 50V L910 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM C810 015 25100 08 CAP CER 0805 10N 10 X7R 50V L920 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM 0812 015 23100 01 CAP CER 0805 100P 5 NPO 50V L930 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM C813 015 24100 08 CAP CER 0805 1N 10 X7R 50V C814 015 24100 08 CAP CER 0805 1N 10 X7R 50V PL100 240 00010 55 PLUG 15 W D RANGE W W PNL MT C815 015 05100 07
179. 5 06100 08 CAP CER 1206 100N 10 X7R 50V C503 0152447008 1 CAF CER 0805 AN7 0 X7R SOY C261 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM 20 015 08100 08 4CAE CER 1208100 10 XZR 30Y C263 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C510 015 2522008 CARCER 0805 22 10 X7 R 50V C265 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS Cols 01925100 08 GAR CEH 0805 1 ON Oe SoY C267 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 0398 015 06100708 ri GAF GER1206 100N 1096 X7R 50V 80269 10 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C550 914 0 470 00 CAR TANT GHIP 4U7 3 5 X 23MM amp C269 13 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V C608 O19 24 100 08 GAF CER 0805 IN 10 X Ri50 amp C269 15 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V GOIDA 01925100092 CAP CER 0802 LON 0 X18 SON 80269 20 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V poe 020 09100 04 GAB ELERAGDOM 10V 6 3X9MM amp C269 23 015 21150 01 CAP CER 0805 1P5 1 4P NPO 50V CELIA A LOOM Oe SZM amp C269 25 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V GENE 015 25100 08 CAP CER 0805 10N 10 X7R 50V C27 015 22470 01 CAP CER 0805 47P 5 NPO 50V 0623 01972410008 CAE CER D805 INO XLR 30V 0273 015 25470 08 CAP GER 0805 47N 10 X7R 50V C625 020 09470 07 CAPEL470M16V20 V 8 20 3 5L ESR 0275 0152312001 CAP GER 0805 120P 5 NPO SOV C626 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 251002 0628 015 24100 08 GAP CER 0805 1N 10 X7R 50V 0277 015 25100 08 CAP CER 0805 10N 10 X7R 50V 2 GS 210008 CAB CER 0802 IN iO SOV C630 015 0
180. 5 15K 5 R232 036 15470 00 RES M F 0805 47K 5 R371 045 06100 01 RES NTC 100K 5 5MM DISC R233 036 14820 00 RES M F 0805 8K2 5 R372 036 14100 00 RES M F 0805 1K 5 R234 036 15470 00 RES M F 0805 47K 5 R374 036 14330 00 RES M F 0805 3K3 5 R236 036 15470 00 RES M F 0805 47K 5 R376 036 15220 00 RES M F 0805 22K 5 R238 036 11470 00 RES M F 0805 4E7 10 R378 036 16100 00 RES M F 0805 100K 5 R239 036 14100 00 RES M F 0805 1K 5 R380 036 13100 00 RES M F 0805 100E 5 R241 036 14100 00 RES M F 0805 1K 5 R381 036 14270 00 RES M F 0805 2K7 5 R242 036 13100 00 RES M F 0805 100E 5 R383 036 14100 00 RES M F 0805 1K 5 R244 036 14680 00 RES M F 0805 6K8 5 R385 036 15100 00 RES M F 0805 10K 5 R245 036 14100 00 RES M F 0805 1K 5 R387 036 15470 00 RES M F 0805 47K 5 R247 036 14220 00 RES M F 0805 2K2 5 R389 036 15470 00 RES M F 0805 47K 5 R249 036 15100 00 RES M F 0805 10K 5 R391 036 15820 00 RES M F 0805 82K 5 R251 036 15390 00 RES M F 0805 39K 5 R393 036 15470 00 RES M F 0805 47K 5 R252 036 14470 00 RES M F 0805 4K7 5 R395 036 13470 00 RES M F 0805 470E 5 R254 036 14820 00 RES M F 0805 8K2 5 R397 036 15220 00 RES M F 0805 22K 5 R255 036 15470 00 RES M F 0805 47K 5 R398 036 15100 00 RES M F 0805 10K 5 R256 036 14470 00 RES M F 0805 4K7 5 R399 036 14100 00 RES M F 0805 1K 5 R258 036 15470 00 RES M F 0805 47K 5 R410 036 14100 00 RES M F 0805 1K 5 R260 036 11470 00 RES M F 0805 4E7 10 R413 036 14390 00 RES M F 0805 3K9 5 R261 036 13150 00 RES M
181. 5 4K7 5 R530 036 15220 00 RES M F 0805 22K 5 R819 036 14470 00 RES M F 0805 4K7 5 R535 036 15100 00 RES M F 0805 10K 5 R821 036 15470 00 RES M F 0805 47K 5 R540 036 14220 00 RES M F 0805 2K2 5 R822 036 15470 00 RES M F 0805 47K 5 R545 036 14470 00 RES M F 0805 4K7 5 R824 036 14220 00 RES M F 0805 2K2 5 R550 036 14470 00 RES M F 0805 4K7 5 R825 036 14220 00 RES M F 0805 2K2 5 R555 036 14470 00 RES M F 0805 4K7 5 R826 036 14220 00 RES M F 0805 2K2 5 R560 036 14270 00 RES M F 0805 2K7 5 R827 036 14220 00 RES M F 0805 2K2 5 R609 036 14100 00 RES M F 0805 1K 5 R828 036 14220 00 RES M F 0805 2K2 5 R613 036 13560 00 RES M F 0805 560E 5 R829 036 14220 00 RES M F 0805 2K2 5 R615 036 13100 00 RES M F 0805 100E 5 R830 036 14220 00 RES M F 0805 2K2 5 R617 036 10000 00 RES M F 0805 ZERO OHM R831 036 14220 00 RES M F 0805 2K2 5 R619 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R832 036 14220 00 RES M F 0805 2K2 5 R621 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R833 036 14220 00 RES M F 0805 2K2 5 R625 036 14100 00 RES M F 0805 1K 5 R835 036 14220 00 RES M F 0805 2K2 5 R629 032 33270 00 RES M F PWR 270E 5 1W 12X4 5 R836 036 14220 00 RES M F 0805 2K2 5 R633 036 14680 00 RES M F 0805 6K8 5 R837 036 14220 00 RES M F 0805 2K2 5 R637 036 12220 00 RES M F 0805 22E 5 R840 036 14220 00 RES M F 0805 2K2 5 R641 036 14150 00 RES M F 0805 1K5 5 R841 036 14220 00 RES M F 0805 2K2 5 30 04 98 Copyright TEL IPN 220 01390 02 M830 00 T837
182. 5 5 Further adjust these coils along with L360 for minimum audio distortion ensur ing that the 455kHz level on the oscilloscope does not fall significantly Check that the distortion reading is wide bandwidth lt 2 mid bandwidth lt 4 narrow bandwidth lt 4 Reconnect plugs PL210 and PL220 to give a de emphasised audio response if required and reduce the RF level until 12dB sinad is reached The receiver sensi tivity should be better than 117dBm assuming that the audio levels are not being overdriven refer to Section 3 11 Copyright TEL 23 07 99 B3 12 T835 Initial Tuning amp Adjustment M830 00 3 8 Gating Delay Two solder links SL210 z SL220 are provided on the bottom of the PCB to allow three gate delay time options as shown in the table below Closing Delay linked not linked not linked linked not linked not linked Factory setting 3 9 Noise Mute Adjustment Connect pins 1 amp 2 of PL250 to enable the noise mute Align the receiver as instructed in Section 3 6 and Section 3 7 Set the RF level to 105dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Set RV230 front panel gating sensitivity fully anticlockwise Adjust RV330 noise mute gain fully clockwise to close the mute if necessary turn off the RF signal and then turn it on again Rotate RV330 anticlockwise until the mute just opens Reset the signal generator for the required opening sinad and adjust
183. 5 Ultimate Signal To Noise Ratio 4 4 4 6 De emphasised Audio Frequency Response 4 5 4 7 Noise Mute If Linked In 4 6 4 8 RSSI 4 6 4 9 Carrier Level Mute Carrier Mute Linked In 4 7 Editor s Note The CTCSS adjustment procedures described in Section 4 10 have been moved to a more appropriate location in Section 3 as part of the Initial Tuning Adjustment procedure refer to Section 3 4 6 and Section 3 12 Copyright TEL 23 07 99 B4 2 T835 Functional Testing M830 00 T835 De emphasised Audio Frequency Response T835 RSSI Voltage vs Signal Strength T835 Main Tuning Adjustment Controls 23 07 99 Copyright TEL M830 00 T835 Functional Testing B4 3 4 1 4 2 4 3 Current Consumption Connect the T835 to a 13 8V power supply Rotate RV230 front panel gating sensitivity anticlockwise until the Gate LED is extinguished Set switch SW201 front panel monitor mute to the on position Check that the current in the 13 8V power cable is less than 350mA Rotate the RV230 clockwise until the Gate LED is lit Rotate RV210 front panel line level and RV205 front panel monitor volume to give maximum outputs Check that the current is less than 800mA Reset the front panel controls to the required settings Sensitivitv If CTCSS is enabled disable the CTCSS tone by either programming the T835 for No Tone on the set channel or by pulling pin 10 of D range 2 CTCSS ENABLE low Ap
184. 50V C273 015 25470 08 CAP CER 0805 47N 10 X7R 50V C722 015 06100 08 CAP CER 1206 100N 10 X7R 50V C275 015 23120 01 CAP CER 0805 120P 5 NPO 50V C724 014 08220 01 L CAP TANT 22UF10V276MSER C277 015 25100 08 CAP CER 0805 10N 10 X7R 50V C725 014 08220 01 L CAP TANT 22UF10V276MSER C279 015 24100 08 CAP CER 0805 1N 10 X7R 50V C726 015 25100 08 CAP CER 0805 10N 10 X7R 50V C281 015 25220 08 CAP CER 0805 22N 10 X7R 50V C727 015 23220 01 CAP CER 0805 220P 5 NPO 50V C283 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C729 015 23220 01 CAP CER 0805 220P 5 NPO 50V C285 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V C733 015 23470 08 CAP CER 0805 470P 10 X7R 50V C287 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C735 015 22470 01 CAP CER 0805 47P 5 NPO 50V 80289 10 015 25470 08 CAP CER 0805 47N 10 X7R 50V C736 015 22470 01 CAP CER 0805 47P 5 NPO 50V amp C289 13 015 25470 08 CAP CER 0805 47N 10 X7R 50V C740A 015 24100 08 CAP CER 0805 1N 10 X7R 50V 80289 15 015 25470 08 CAP CER 0805 47N 10 X7R 50V C740B 015 25100 08 CAP CER 0805 10N 10 X7R 50V 80289 16 015 25680 08 CAP CER 0805 68N 10 X7R 50V C741A 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM 80289 20 015 25470 08 CAP CER 0805 47N 10 X7R 50V C741B 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C289 23 015 25470 08 CAP CER 0805 47N 10 X7R 50V C742A 015 06100 08 CAP CER 1206 100N 10 X7R 50V 80289 25 015 25470 08 CAP CER 0805 47N 10 X7R 50V C742B 015 25100 08 CAP CER 0805 10N 10 X7R 50V amp C289 26 015 25680 08 CA
185. 5100 00 RES M F 0805 10K 5 C250 002 00020 50 S IC 4N25A OPTOCOUPLER R210 036 14220 00 RES M F 0805 2K2 5 C260 002 10003 24 S IC SMD 324 4X O AMP SO14 R212 036 16100 00 RES M F 0805 100K 5 C330 002 00012 40 S IC 358 DUAL O AMP R213 036 15100 00 RES M F 0805 10K 5 C610 002 00014 58 S IC 78L05 5V 100MA REG TO92 R214 036 14820 00 RES M F 0805 8K2 5 C630 002 00014 62 S IC 317L 100MA REG 3TER TO92 R215 036 16100 00 RES M F 0805 100K 5 C640 002 10003 58 S IC SMD LM358 DUAL O AMP R216 036 16100 00 RES M F 0805 100K 5 C650 002 10012 32 SMD DS1232LPS 2 LP RESET amp W DOG R217 036 14100 00 RES M F 0805 1K 5 IC700 539 00010 41 TCXO 12 8MHZ 2 5PPM 30 70C R218 036 16150 00 RES M F 0805 150K 5 C710 002 74910 04 S IC SMD 74HCU04 6X INV R219 036 14220 00 RES M F 0805 2K2 5 C720 002 74910 04 S IC SMD 74HCU04 6X INV R221 036 14150 00 RES M F 0805 1K5 5 C730 002 10045 20 S IC SMD 74HC4520T 2XCTR 4BIT R223 036 17100 00 RES M F 0805 1M 5 C740 002 14519 10 S IC MC145191F SMD SYNTH R224 036 14680 00 RES M F 0805 6K8 5 C750 002 10330 78 S IC MC33078D 2X AMP LO NOISE R225 036 17100 00 RES M F 0805 1M 5 C810 002 08951 20 S IC AT89C51 PLCC44 MIC 12MHZ R226 036 15100 00 RES M F 0805 10K 5 C820 002 12416 00 SJIC SMD AT24C16N 10SC EEPROM R227 036 14220 00 RES M F 0805 2K2 5 C830 002 10003 24 S IC SMD 324 4X O AMP SO14 R229 036 16470 00 RES M F 0805 470K 5 R230 036 16100 00 RES M F 0805 100K 5 LED1 008 00013 32 S LED 3 RED LO CURRENT NO MTG R231 036 151
186. 5180 00 RES M F 0805 18K 5 R394 030 52120 20 RES M F 12E 5 4X1 6 0 2 8R265 16 036 15150 00 RES M F 0805 15K 5 R396 030 53820 20 RES FILM Al 820E 5 0 4W 4X1 6 amp R265 20 036 15150 00 RES M F 0805 15K 5 R502 036 13330 00 RES M F 0805 330E 5 amp R265 23 036 15150 00 RES M F 0805 15K 5 R505 036 15150 00 RES M F 0805 15K 5 8R265 25 036 15180 00 RES M F 0805 18K 5 R510 036 13680 00 RES M F 0805 680E 5 8R265 26 036 15150 00 RES M F 0805 15K 5 R515 036 12560 00 RES M F 0805 56E 5 8R266 10 036 15470 00 RES M F 0805 47K 5 R520 036 16120 00 RES M F 0805 120K 5 8R266 13 036 15470 00 RES M F 0805 47K 5 R525 036 15470 00 RES M F 0805 47K 5 8R266 15 036 15560 00 RES M F 0805 56K 5 R530 036 15220 00 RES M F 0805 22K 5 amp R266 16 036 15470 00 RES M F 0805 47K 5 R535 036 15100 00 RES M F 0805 10K 5 amp R266 20 036 15470 00 RES M F 0805 47K 5 R540 036 14220 00 RES M F 0805 2K2 5 amp R266 23 036 15470 00 RES M F 0805 47K 5 R545 036 14470 00 RES M F 0805 4K7 5 amp R266 25 036 15560 00 RES M F 0805 56K 5 R550 036 14470 00 RES M F 0805 4K7 5 amp R266 26 036 15470 00 RES M F 0805 47K 5 R555 036 14470 00 RES M F 0805 4K7 5 R267 036 14220 00 RES M F 0805 2K2 5 R560 036 14270 00 RES M F 0805 2K7 5 R268 036 13100 00 RES M F 0805 100E 5 R609 036 14100 00 RES M F 0805 1K 5 R269 036 15100 00 RES M F 0805 10K 5 R613 036 13560 00 RES M F 0805 560E 5 R270 036 14120 00 RES M F 0805 1K2 5 R615 036 13100 00 RES M F 0805 100E 5 R271 036 17100 00 RES
187. 5dB V over the range of 115dBm to 70dBm refer to Fig ure 4 2 for RSSI voltage vs signal strength 8 RSSI Voltage 130 120 110 100 90 80 70 60 RF Level dBm Figure 4 2 T835 RSSI Voltage vs Signal Strength 23 07 99 Copyright TEL M830 00 T835 Functional Testing B4 7 4 9 Carrier Level Mute Carrier Mute Linked In Apply an on channel signal from the RF generator at a level of 120dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Increase the RF level in 2dB steps and check that the mute opens at an RF level which corresponds with the preset level on RV235 carrier mute i e between 115dBm and 70dBm Editor s Note The CTCSS adjustment procedures described in Section 4 10 have been moved to a more appropriate location in Section 3 as part of the Initial Tuning amp Adjustment procedure refer to Section 3 4 6 and Section 3 12 Copyright TEL 23 07 99 B4 8 T635 Functional Testing M830 00 23 07 99 Copyright TEL M830 00 T835 Fault Finding B5 1 5 ZN Caution T835 Fault Finding This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following test procedures and fault finding flow charts may be used to help locate a hardware problem however they a
188. 6 6 R8 C782 1 G2 7 N1 C285 1 D7 2 LO C630 1 M5 6 K5 C784 1 G2 7 Q1 IC210 1 07 2 H0 C287 1 06 2 M1 C631A 1 M5 6 M6 C786 1 G2 7 R1 IC210 1 07 2 Q0 C289 1 08 2 N1 C634 1 N5 6 M5 C788 1 G3 7 PO IC210 1 07 2 K2 C291 1 D7 2 P1 C636 1 M5 6 M5 C790 1 G3 7 Q0 IC210 1 07 2 11 C293 1 D7 2 Q1 C638 1 M6 6 P6 C792 1 G3 7 Q1 IC210 1 07 2 C6 C294 1 D7 2 Q0 C640 1 M5 6 R6 C810 1 L3 8 K8 IC220 1 D6 2 PO C295 1 D6 2 Q0 C655 1 M4 6 C1 C812 1 L2 8 F5 IC220 1 D6 2 M3 C304 2 F7 3 A8 C660 1 L5 6 K1 C813 1 K2 8 H5 IC220 1 D6 2 D5 C308 2 F7 3 C8 C665 1 15 6 K1 C822 1 M2 8 B2 IC230 1 B4 2 GO C312 2 F7 3 D8 C670 1 L6 6 L1 C823 1 M3 8 C2 IC230 1 B4 2 JO C316 2 E8 3 D9 C673 1 15 6 P2 C824 1 M2 8 C1 IC230 1 B4 2 L5 C317 2 F8 3 E8 C677 1 L6 6 P1 C826 1 N3 8 CO IC230 1 B4 2 N6 Copyright TEL 23 07 99 IPN 220 01390 03 C6 3 36 T837 PCB Information M830 00 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit IC230 1 B4 2 G1 P239 1 07 2 R8 Q820 1 12 8 D5 R282 1 D7 2 K1 IC240 1 04 2 F3 P240 1 07 2 R8 Q830 1 12 8 D5 R283 1 D7 2 11 IC250 1 D3 2 E1 P243 1 B7 2 R7 Q840 1 12 8 F5 R284 1 D7 2 L0 IC260 1 08 2 NO P244 1 B7 2 R7 Q850 1 M2 8 G5 R285 1 C8 2 MO IC260 1 08 2 FO P245 1 B8 2 R6 Q860 1 14 8 B3 R286 1 07 2 MO IC260 1 08 2 Q2 P247 1 B8 2 R6 R287 1 D9 2 MO IC260 1 08 2 Q3 P248 1 B7 2 R6 R150 1 P2 1 R4 R288 1 06 2 M2 IC260 1 08 2 N3 P249 1 07 2 R5 R160 1 P2 1 R3 R289 1 09 2 MO IC330 1 E8 3 MO P251 1 07 2 R5 R200 1 B2 2 D9 R290 1 08 2 N2 IC330 1 E8 3
189. 6 and the VCO circuit dia gram in Part E FREQUENCY SYNTHESISER IC VCO PCB Reference Phase Charge Loop i Output Divider Detector Pump Filter VCO Buffer Buffer i 12 8MHz Reference Si IR DA oy JX AS 5 adm Oscillator fref I i O 1 AAA AE asocia as Programmable Prescaler Divider N K 64 65 r Clk no fin Serial Data T T Buffer Bus En Controller Figure 2 6 1835 Synthesiser Block Diagram The synthesiser IC740 employs a phase locked loop PLL to lock a voltage controlled oscillator VCO to a given reference frequency The synthesiser receives the divider information from the control microprocessor via a 3 wire serial bus clock data enable When the data has been latched in the synthesiser processes the incoming signals from the VCO buffer fin and the reference oscillator fref A reference oscillator at 12 8MHz IC700 is buffered IC710 and divided down to 6 25kHz or 5kHz within the synthesiser IC 1C740 A buffered output of the VCO is divided with a prescaler and programmable divider which is incorporated into the synthesiser chip IC740 This signal is compared with the reference signal at the phase detector also part of the synthesiser chip The phase detector outputs drive a balanced charge pump circuit Q760 Q770 Q775 Q780 Q785 and active loop filter IC750 Q790 which produces a DC voltage between OV an
190. 60 1 P2 1 04 Q750 1 G4 7 G3 R287 2 B8 2 F2 D860 1 M2 8 NO P170 1 P2 1 R4 Q760 1 G3 7 J3 R288 2 B8 2 F1 D860 1 M2 8 NO P201 1 D4 2 A9 Q770 1 H3 7 41 R289 2 B7 2 G3 D880 1 M2 8 R2 P204 1 D7 2 A9 Q775 1 H3 7 K3 R290 2 B7 2 H3 D880 1 M2 8 R2 P207 1 D6 2 A8 Q780 1 H3 7 K3 R292 2 08 2 G2 P210 1 D6 2 07 Q785 1 H3 7 K2 R293 2 B7 2 H1 IC210 1 07 2 G7 P213 1 D3 2 A7 Q790 1 H4 7 L3 R294 2 03 2 HO IC210 1 07 2 07 P216 1 B2 2 A7 Q795 1 G3 7 PO R295 2 B7 2 J1 IC210 1 07 2 F7 P219 1 D7 2 A7 Q810 1 K2 8 C5 R296 2 A7 2 K1 IC240 1 B5 2 P7 P222 1 05 2 A6 Q820 1 K2 8 C6 R297 1 B2 2 MO IC260 1 B6 2 N2 P225 1 08 2 A4 Q840 1 K2 8 F5 R298 2 D7 2 JO IC270 1 B8 2 F3 P228 1 D8 2 A4 Q850 1 12 8 G5 R299 2 07 2 JO IC270 1 B8 2 E2 P231 1 07 2 A4 Q860 1 K4 8 B4 R301 2 F8 3 B6 IC270 1 B8 2 B2 P234 1 B7 2 A3 Q870 1 14 8 C4 R302 2 F8 3 B6 IC280 1 04 2 BO P236 1 08 2 A1 Q880 1 12 8 L5 R303 2 F8 3 C7 IC280 1 04 2 DO P238 1 D3 2 A1 Q890 1 14 8 K3 R305 2 F7 3 C8 IC280 1 04 2 E1 P240 1 08 2 G2 Q895 1 M3 8 P2 R307 2 F8 3 D7 IC340 1 F4 3 B1 P242 1 07 2 G1 R309 2 E8 3 F6 IC350 1 E4 3 D1 P244 1 07 2 G8 R160 1 P2 1 04 R311 2 F8 3 F7 IC390 1 E6 3 H3 P246 1 06 2 H9 R201 2 D6 2 B8 R313 2 E8 3 F6 IC390 1 E6 3 L3 P248 1 C6 2 H9 amp R202 2 D6 2 B7 R315 2 F6 3 L6 IC390 1 E6 3 LO P250 1 B3 2 K9 R204 2 06 2 C9 R317 2 F6 3 L6 IC390 1 E6 3 HO P252 1 B2 2 K9 R205 2 07 2 08 R319 2 F6 3 17 IC390 1 E6 3 K3 P254 1 B2 2 K9 R207 2 07 2 D8 R321 2 F6 3 L8 IC410 1 H7 4 P4 P256 1 B2 2 18 amp R209 2 07 2 D8 R323 2 F6
191. 60 NPN SOT23 SS R321 036 14100 00 RES M F 0805 1K 5 R323 036 12680 00 RES M F 0805 68E 5 R160 036 12100 00 RES M F 0805 10E 5 R325 036 13100 00 RES M F 0805 100E 5 R201 036 14470 00 RES M F 0805 4K7 5 R327 036 12560 00 RES M F 0805 56E 5 8R202 10 036 14470 00 RES M F 0805 4K7 5 R329 036 12390 00 RES M F 0805 39E 5 8R202 13 036 14470 00 RES M F 0805 4K7 5 R331 036 13470 00 RES M F 0805 470E 5 8R202 15 036 14330 00 RES M F 0805 3K3 5 R332 036 13680 00 RES M F 0805 680E 5 8R202 20 036 14470 00 RES M F 0805 4K7 5 R333 036 12100 00 RES M F 0805 10E 5 8R202 23 036 14470 00 RES M F 0805 4K7 5 8R333 10 036 17100 00 RES M F 0805 1M 5 8R202 25 036 14330 00 RES M F 0805 3K3 5 8R333 13 036 17100 00 RES M F 0805 1M 5 R204 036 15100 00 RES M F 0805 10K 5 8R333 15 036 14330 00 RES M F 0805 3K3 5 R205 036 16220 00 RES M F 0805 220K 5 8R333 20 036 17100 00 RES M F 0805 1M 5 R207 036 14820 00 RES M F 0805 8K2 5 8R333 23 036 17100 00 RES M F 0805 1M 5 amp R209 10 036 15220 00 RES M F 0805 22K 5 8R333 25 036 14330 00 RES M F 0805 3K3 5 8R209 13 036 15220 00 RES M F 0805 22K 5 R334 036 10000 00 RES M F 0805 ZERO OHM 8R209 15 036 15180 00 RES M F 0805 18K 5 R335 036 10000 00 RES M F 0805 ZERO OHM 8R209 20 036 15220 00 RES M F 0805 22K 5 R337 036 14120 00 RES M F 0805 1K2 5 8R209 23 036 15220 00 RES M F 0805 22K 5 R339 036 16100 00 RES M F 0805 100K 5 8R209 25 036 15180 00 RES M F 0805 18K 5 R341 036 17100 00 RES M F 0805 1M 5 R210 036 15150 00
192. 60W T838 120W T839 maximum output power and should not normally need adjustment If the output power level is low check that the high tempera ture shutdown circuit has not activated by verifying that IC101 pin 8 is low Adjust RV109 to set the power output to the required level e g 50W for the T838 100W for the T839 30 04 98 Copyright TEL M830 00 T838 839 Initial Adjustment D3 5 3 4 Limiting The Maximum Output Power Refer to the control section circuit diagram in Section 5 Two chip resistors are provided on the PCB if there is a requirement to set an absolute limit to the maximum output power These two resistors are normally bypassed by a zero Ohm resistor LINK2 Remove LINK2 as shown in Figure 3 2 to aa Ne ki bring bring R173 amp R174 into circuit into circui You can now limit the maximum output z power by selecting the appropriate values for R173 amp R174 Two examples are given in the table below XRV411 17AMHz T838 8 T839 T839 only R173 4700 4700 R174 3k9 1k8 Figure 3 2 Modifications To Limit Maximum Output Power Note The resistor values given in the above table are valid at 174MHz only Dif ferent frequencies mav require different values and vou will have to deter mine the correct values for vour application bv testing At anv given frequencv an increase in resistance will result in a decrease in maximum output power 3 5 High Temperature Shutdown Power Level
193. 6100 08 CAP CER 1206 100N 10 X7R 50V 028 015 25220 08 CAP GER 0805 22N 10 X7R 50V C631A 015 06100 08 CAP CER 1206 100N 10 X7R 50V C283 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V Gost 02970810002 CAP TANTBEAD 10M 10 16V C285 015 21470 01 CAP CER 0805 4P7 1 4P NPO 50V a 01570610008 CAP CER 1206 TOON 10 X B SOY C287 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Cee 015 54100 081 CAR CER 0505 INI 275501 C289 015 25470 08 CAP CER 0805 47N 10 X7R 50V C630 015 24100 08 AP CER O80SIN 10 X7R 50V C29 014 08220 01 L CAP TANT 22UF10V276MSER 0655 045724100 08 gt CAP CER D805 1N 10 x7 SOW C293 015 27100 10 CAP CER 0805 1M 80 20 Y5V 16V Geen 0150610008 CAR CER 1206 100N 10 X7R 50V 0294 015 22470 01 CAP GER 0805 47P 5 NPO BOV C665 020 58100 03 CAP ELE Al RDL 10M SOV 5X11MM 0295 022 06470 02 CAP MYLAR 470N 10 50V 9670 025 07330011 CAR TANT BEAD SMS 95V 0302 025 08100 02 CAP TANT BEAD 10M 10 16V C673 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C308 015 24100 08 CAP CER 0805 1N 10 X7R 50V Gort 020010002 MO IM CHO GIS SAIGON UR CAP CEI 0602AN J0 AR SOV 0681 015 06100 08 CAP CER 1206 100N 10 X7R 50V C312 015 24100 08 CAP CER 0805 1N 10 X7R 50V c6s4 025 0810002 CAF TANT BEAD 10M110 16V 0313 015 06100 08 CAP CER 1206 100N 10 X7R 50V coer 015724100708 7 CARCER 0805 IN 107 2 7P 90V C316 015 25470 08 CAP CER 0805 47N 10 X7R 50V Coso 0190610008 SAR CELI OB 100N 10 XCR DOV C317 015 23100 01 CAP CER 0805 100P 5 NPO 50V C693 025 08100 02 CAP TANT
194. 7 03 MODULE M68702H 150 174MHZ 60W SA Foe oer Ab EE BOE fie OR AW 1C203 051 00005 36 RFPOWER 3DB HYBRID COUPLER i kai IC204 002 10006 62 S IC SMD LMC662CM 2X O AMP cios 01972368009 CARCER 0805 680F1025 SOY 1C205 051 00005 36 RFPOWER 3DB HYBRID COUPLER C141 014 07100 02 CAP TANT CHIP 1U0 3 2 X 1 6MM 0143 015 23680 08 CAP CER 0805 680P 10 X7R 50V dd Ga SIRES CARER eee IDA Eey Mol mn geo EE sup oap saa cier O15 288 20 08 2 CCAP CER OBO 4N 10 X76 SOV L105 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 C149 015 23680 08 CAP CER 0805 680P 10 X7R 50V Loba 058 14150 02 L IND SMD 1 5UH GISI 019 2368009 CAR CER 0805168010 X7R 50V L203 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 C153 015 23680 08 CAP CER 0805 680P 10 X7R 50V TEM 058 14150 02 DINDSMDASUH C155 015 25100 08 CAP CER 0805 10N 10 X7R 50V i20 056 1418002 L IND SMD 1 5UH C159 015 23680 08 CAP CER 0805 680P 10 X7R 50V fae 056 14180 02 L IND GMD 15UH C161 015 23680 08 CAP CER 0805 680P 10 X7R 50V re 056 10330 02 L IND SMD 330NH C162 015 23680 08 CAP CER 0805 680P 10 X7R 50V i A ATI OSN DSN iet 015 5 4 0 08 CAP CER 08054N7 10 x7 HOON L217 052 08340 40 COIL A W 4T 4 0MM SMD 0 8MM C165 015 23680 08 CAP CER 0805 680P 10 X7R 50V A des 03 040 GOIL AWATA GUN SMD SUM iet 015 24100 08 GAP CER 0805 1N 10 AZF TON L230 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 C169 014 07470 03 L CAP TANT SMD 4U7 35V 20 dis A MME aie Gud C171 015 24470 08 CAP CER 0805 4N7 10 X7R 50V e 056 10380 02
195. 7 K3 R277 1 B5 2 J1 IC720 1 J3 7 M7 P239 1 07 2 R8 Q780 1 H3 7 K3 R278 1 B5 2 JO IC720 1 33 7 JO P240 1 07 2 R8 Q785 1 H3 7 K2 R279 1 B5 2 KO IC720 1 J3 7 K7 P243 1 B7 2 R7 Q790 1 H4 7 M3 R280 1 B5 2 KO IC720 1 J3 7 F8 P244 1 B7 2 R7 Q795 1 G3 7 PO R282 1 D7 2 K1 10720 1 33 7 N7 P245 1 B8 2 R6 Q810 1 M2 8 E7 R283 1 D7 2 L1 IC720 1 J3 7 P6 P247 1 B8 2 R6 Q820 1 12 8 D5 R284 1 D7 2 LO IC720 1 J3 7 KO P248 1 B7 2 R6 Q830 1 12 8 D5 R285 1 08 2 MO IC730 1 J4 7 H8 P249 1 07 2 R5 Q840 1 12 8 F5 R286 1 07 2 MO IC730 1 J4 7 G7 P251 1 07 2 R5 Q850 1 M2 8 G5 R287 1 09 2 MO IC740 1 H2 7 D1 P255 1 D5 2 R4 Q860 1 14 8 B3 R288 1 C6 2 M2 IC750 1 H4 7 N3 P257 1 02 2 R4 R289 1 09 2 MO IC750 1 H4 7 H5 P259 1 B8 2 R3 R150 1 P2 1 R4 R290 1 08 2 N2 IC750 1 H4 7 Q7 P261 1 B8 2 R3 R160 1 P2 1 R3 R291 1 C8 2 N1 IC820 1 14 8 N2 P263 1 B2 2 R2 R201 1 B2 2 E9 R292 1 08 2 Q2 IC830 1 N3 8 JO P265 1 C5 2 MO R202 1 C1 2 F9 R293 1 D9 2 Q2 IC830 1 N3 8 Q1 P267 1 08 2 N2 R204 1 07 2 B6 R294 1 09 2 Q1 30 04 98 Copyright TEL IPN 220 01395 02 M830 00 T836 PCB Information C6 2 13 Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit R295 1 D8 2 R1 R435 2 K8 4 H5 R754 1 63 7 F3 R879 1 N2 8 L3 R296 1 D6 2 PO R440 2 N7 4 M6 R756 1 63 7 G5 R330A 1 F9 3 LO R297 1 D7 2 P1 R445 2 N8 4 N5 R757 1 G4 7 G4 R298 1 D7 2 Q0 R450 2 M8 4 M4 R758 1 H3 7 H4 RV210 1 B7 2 F9 R299 1 07 2 RO R455 2 N8 4 N3 R759 1 H3 7 J4 RV220 1 A4 2 M6 R301 1 F8 3 A8 R460 1 J9 4 M8
196. 7 SKT JACK 1 3 PCB MT 64W SK505 240 04021 77 SKT JACK 1 3 PCB MT 64W SK513 240 04021 77 SKT JACK 1 3 PCB MT 64W SK522 240 04021 77 SKT JACK 1 3 PCB MT 64W SK531 240 04021 77 SKT JACK 1 3 PCB MT 64W SK532 240 04021 77 SKT JACK 1 3 PCB MT 64W SK533 240 04021 77 SKT JACK 1 3 PCB MT 64W SK534 240 04021 77 SKT JACK 1 3 PCB MT 64W SK535 240 04021 77 SKT JACK 1 3 PCB MT 64W SK805 240 10000 07 CONN SMD SKT 16W 2R M MATCH SK810 240 04020 42 SKT 44 PIN SMD PLCC SW230 232 00010 26 SWITCH PUSH SPDT R ANG PCB MTG T210 053 00010 17 XFMR T4030 LINE MATCH POTCORE T610 050 00016 50 COIL TAIT NO 650 455KHZ Copyright TEL 30 04 98 IPN 220 01390 02 C6 3 8 T837 PCB Information M830 00 T837 Mechanical 8 Miscellaneous Parts 220 01390 02 IPN Legend Description IPN Legend Description 012 04150 01 051 00006 02 065 00010 13 200 00010 05 201 00030 02 201 00030 10 206 00010 11 220 01176 03 220 01390 02 232 00020 26 240 00010 55 240 00100 43 240 02100 06 240 04020 62 303 11169 03 303 231 18 00 303 50074 00 303 50078 00 308 01007 01 312 01052 01 312 01053 01 316 06619 00 319 01152 00 345 00040 10 349 00020 36 349 00020 43 349 00020 45 350 00016 42 352 00010 08 352 00010 29 353 00010 10 353 00010 13 362 00010 08 362 00010 23 362 00010 33 365 00011 53 25 10 11 12 13 14 21 22 23 24 CAP CER F THRU 1N5 NO LEAD Fitted to D range
197. 7 from serial com to audio 2 Go to Step 8 30 04 98 Copyright TEL M830 00 T835 836 837 SII SI Conversion 12 3 ensure R160 is placed Sjeeso ETETSTEJS ia k remove R808 Figure 2 1 T835 Component Changes Copyright TEL 30 04 98 12 4 T835 836 837 SII SI Conversion M830 00 Action If you are modifying a T836 follow these steps refer to Figure 2 2 e remove R808 10Q e remove R160 100 e place R150 102 converts D range 1 pin 7 from serial com to audio 1 Continue with Step 8 If you are modifying a T837 follow these steps refer to Figure 2 2 e remove R808 100 e remove R160 100 e place R150 100 e remove L390 this will disable cyclic keying to enable the T837 to work with a Series I PA converts D range 1 pin 7 from serial com to audio 1 Continue with Step 7 30 04 98 Copyright TEL M830 00 T835 836 837 SII SI Conversion 12 5 place R150 remove R160 remove R808 remove L390 T837 only Figure 2 2 T836 837 Component Changes Copyright TEL 23 07 99 12 6 T835 836 837 SII SI Conversion M830 00 Action Converting the T837 from rear panel RF output to front panel RF out put Desolder unscrew and remove the rear panel N type connecto
198. 70 00 RES M F 0805 4K7 5 Copyright TEL 30 04 98 IPN 220 01394 02 B6 2 8 T835 PCB Information M830 00 T835 Mechanical amp Miscellaneous Parts 220 01394 02 IPN Legend Description IPN Legend Description 012 04150 01 CAP CER F THRU 1N5 NO LEAD 400 00020 07 SLEEVING 2MM SIL RUBBER Fitted to D range pins 410 01081 01 CRT T800 SERIES II 051 00006 02 SOLDER SPRING 1 3MM A4M1877 Support for front panel LED solder joints 065 00010 13 BEAD FER 7D 1 9X0 9X3 8 Fitted to D range pins 201 00030 02 WIRE T C 7 0 2 PVC RED Front panel LEDs 201 00030 10 WIRE T C 7 0 2 PVC BLACK Front panel LEDs 220 01176 03 1 PCB T83X VCO 220 01394 02 2 PCB T835 SERIES II 230 00010 31 3 SWITCH COVER FOR 230 00010 30 240 00010 55 25 PLUG 15 W D RANGE W W PNL MT PL100 240 02100 06 4 SKT COAX N TYPE PNL MTG OP TER 240 04020 62 SKT 2 W RECEP SHORTING LINK PL210 220 230 240 250 260 270 303 11169 03 CHASSIS PAINTED T800 SERIES 303 23118 00 6 COVER A3M2247 D RANGE 303 50074 00 7 CLIP A3M2246 SPRING CLAMP 308 01007 01 8 HANDLE BASE STATION SERIES II 311 01015 00 9 KNOB 15MM 8 SKIRT 6MM SFT 312 01052 01 10 LID TOP PNTD A1M2364 T800 312 01053 01 14 LID BOTTOM PNTD A1M2364 T800 316 06622 00 12 PNL FRT RX T800 SERIES Il 319 01152 00 13 SHIELD A3M2250 F THRU MTG T857 345 00040 10 14 SCRW M3X6MM P POZ ST BZ 349 00020 36 15 LIM SCREW TT M3X8m PANTORX BLK 349 00020 43 16 SCRW T T M4X12MM P POZ BZ 349 00020 45 17 SCRW T T M4X20MM P POZ BZ 350
199. 7R 50V C630 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C333 10 015 22270 01 CAP CER 0805 27P 5 NPO 50V C631A 015 06100 08 CAP CER 1206 100N 10 X7R 50V amp C333 13 015 22270 01 CAP CER 0805 27P 5 NPO 50V C631B 025 08100 02 CAP TANT BEAD 10M 10 16V 80333 15 015 22390 01 CAP CER 0805 39P 5 NPO 50V C637 015 24100 08 CAP CER 0805 1N 10 X7R 50V 80333 20 015 22270 01 CAP CER 0805 27P 5 NPO 50V C640 015 24100 08 CAP CER 0805 1N 10 X7R 50V 8C333 23 015 22270 01 CAP CER 0805 27P 5 NPO 50V C651 015 06100 08 CAP CER 1206 100N 10 X7R 50V 30 04 98 Copyright TEL IPN 220 01394 02 M830 00 T835 PCB Information B6 2 5 Ref Var IPN Description Ref IPN Description C658 015 06100 08 CAP CER 1206 100N 10 X7R 50V D289 001 00011 70 S DIODE 1N4001 1A 50V C660 015 06100 08 CAP CER 1206 100N 10 X7R 50V D290 001 00011 70 S DIODE 1N4001 1A 50V C665 020 58100 03 CAP ELE AI RDL 10M 50V 5X11MM D295 001 00011 70 S DIODE 1N4001 1A 50V C670 025 07330 01 CAP TANT BEAD 3M3 35V D310 001 10000 56 S DIODE SMD BAW56 D SW SOT23 C673 015 24470 08 CAP CER 0805 4N7 10 X7R 50V D610 001 10000 99 S DIODE SMD BAV99 D SW SOT23 C677 020 07100 02 CAP ELE RA 1M 50V 5X11MM D640 001 10000 70 S DIODE SMD BAV70 D SW SOT23 C681 015 06100 08 CAP CER 1206 100N 10 X7R 50V D730 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 C684 025 08100 02 CAP TANT BEAD 10M 10 16V D740 001 10065 00 DIODE BAT65 SCH
200. 8 C442 2 K7 4 H5 C740A 1 H2 7 B4 amp C203 2 C6 2 B8 C327 2 F5 3 L8 C446 2 K8 4 J5 C740B 1 H2 7 B3 C205 2 06 2 B8 C329 2 F5 3 M6 C448 2 J8 4 J4 C741A 1 H2 7 C4 C207 1 D6 2 C8 C331 2 F5 3 M7 C450 2 J8 4 J4 C741B 1 G2 7 03 C209 1 07 2 E8 8 0333 2 F5 3 N7 C452 2 J8 4 K4 C742A 1 H2 7 D4 C210 2 C7 2 C7 amp C335 2 F5 3 P6 C454 2 J8 4 K4 C742B 1 H3 7 D3 C211 2 07 2 D7 8 0337 2 F4 3 Q6 C456 2 J8 4 14 C743 1 H2 7 B1 C213 2 07 2 E7 C339 2 F4 3 R7 C458 2 J8 4 K4 C745 1 G3 7 D1 C215 2 07 2 E7 C340A 1 F4 3 A2 C462 2 J8 4 15 C750 1 H4 7 H7 C217 2 07 2 E7 C340B 2 F4 3 B2 C464 2 J8 4 14 C757 1 G4 7 G5 C219 2 C6 2 H6 C344 2 F4 3 B1 C468 2 J8 4 14 C759 1 G4 7 G4 C221 2 06 2 H6 C345 2 F4 3 B2 C470 2 H8 4 14 C761 1 H3 7 J4 C222 1 C6 2 J9 C347 2 F4 3 02 C472 2 H8 4 M4 C762 1 G3 7 K4 C223 2 C6 2 H8 C348 1 F4 3 C2 C478 2 67 4 Q4 C764 1 H3 7 32 C225 2 06 2 J8 C349 2 E4 3 D2 C480 2 G8 4 Q4 C765 1 G3 7 J2 C227 2 C6 2 J8 C351 2 E4 3 DO C505 1 K6 5 L8 C767 1 H3 7 K3 C229 1 06 2 K8 C353 2 E3 3 DO C515 1 H5 5 F3 C769 1 H4 7 M4 C231 1 B3 2 K8 C355 2 E4 3 D1 C530 1 K5 5 K1 C770 1 H3 7 N4 C233 1 B7 2 J7 C357 2 E4 3 E2 C535 1 K5 5 L1 C772 1 G4 7 M2 C235 2 05 2 M6 C359 2 E4 3 E2 C610A 1 M5 6 08 C774 1 H4 7 P2 C237 2 06 2 M5 C361 2 E4 3 E1 C610B 1 M5 6 D8 C776 1 H4 7 N1 C238 2 05 2 N7 C363 2 E4 3 E1 C611A 1 15 6 E8 C782 1 G3 7 NO C239 1 05 2 P6 C365 2 E4 3 F2 C611B 1 M5 6 F8 C784 1 G2 7 Q1 C240A 2 B5 2 Q8 C367 2 E4 3 FO C623 1 M6 6 N8 C786 1 G2 7 R1 C240B 2 B5 2 R8 C369 2 E5 3 G3 C625 1
201. 805 18K 5 Q330 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS 8R266 10 036 15470 00 RES M F 0805 47K 5 Q335 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF amp R266 13 036 15470 00 RES M F 0805 47K 5 Q340 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS amp R266 15 036 15560 00 RES M F 0805 56K 5 Q345 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R266 20 _ 036 15470 00 RES M F 0805 47K 5 Q365 000 00031 96 S XSTR 3866 NPN T092 SWITCH amp R266 23 036 15470 00 RES M F 0805 47K 5 Q370 000 00022 30 S XSTR 2N4427 NPN T039 VHF DR 8R266 25 036 15560 00 RES M F 0805 56K 5 Q510 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF R267 036 14220 00 RES M F 0805 2K2 5 Q520 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF R268 036 13100 00 RES M F 0805 100E 5 Q530 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF R269 036 15100 00 RES M F 0805 10K 5 Q540 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF R270 036 13470 00 RES M F 0805 470E 5 Q550 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R271 036 16390 00 RES M F 0805 390K 5 Copyright TEL 30 04 98 IPN 220 01390 02 C6 3 6 T837 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description R272 036 13560 00 RES M F 0805 560E 5 R645 036 13470 00 RES M F 0805 470E 5 R273 036 15120 00 RES M F 0805 12K 5 R649 036 14470 00 RES M F 0805 4K7 5 R274 036 15150 00 RES M F 0805 15K 5 R653 036 15100 00 RES M F 0805 10K 5 R275 036 14270 00 RES M F 0805 2K7 5 R657 036 15100 00 RES
202. 80P 10 X7R 50V C298 015 24470 08 CAP CER 0805 4N7 10 X7R 50V L l D101 001 10000 70 S DIODE SMD BAV70 D SW SOT23 05 OO GF ALE AO BV D103 008 00013 32 S LED 3 RED LO CURRENT NO MTG ja O IL cl babe ates EEO D105 001 10000 70 S DIODE SMD BAV70 D SW SOT23 107 BI ma oe Sd DO D107 008 00013 35 S LED 3 GRN LO CURRENT NO MTG 05 EGO EP D109 008 00013 32 S LED 3 RED LO CURRENT NO MTG 6 D111 001 10000 70 S DIODE SMD BAV70 D SW SOT23 C111 015 23680 08 CAP CER 0805 680P 10 X7R 50V Se 001 00011 60 8 DIODE SR2607 USE MA750 C113 015 23680 08 CAP CER 0805 680P 10 X7R 50V Da 001 00013 45 _ 8 DIODE SCHTTKY 1889772 10115 015 23680 08 CAP CER 0805 680P 10 X7R 50V D202 001 10000 70 S DIODE SMD BAV70 D SW SOT23 C117 015 23680 08 CAP CER 0805 680P 10 X7R 50V D203 dos e DIODE Ga 1a 26 C119 015 23680 08 CAP CER 0805 680P 10 X7R 50V C121 015 23680 08 CAP CER 0805 680P 10 X7R 50V C123 015 23680 08 CAP CER 0805 680P 10 X7R 50V ke PERETE S oi C124 015 23680 08 CAP CER 0805 680P 10 X7R 50V bio 002 10003 58 8 IG SMD LM358 DUAL O AMP C125 015 23680 08 CAP CER 0805 680P 10 X7R 50V cla 02 10002 17 8 IG LMS171 REG SO TOOMA C127 015 23680 08 CAP CER 0805 680P 10 X7R 50V C108 00210003 IE is OIE REG 20 8 100MA RON 5 100 Gai a Mge fe HIC201 10 004 00687 02 MODULE M68702L 135 160MHZ 60W RZ DOO ZAP se IC201 20 _ 004 00687 03 MODULE M68702H 150 174MHZ 60W a a A A A 1C202 10 004 00687 02 MODULE M68702L 135 160MHZ 60W Oe 1C202 20 004 0068
203. 842 1 L3 8 P6 R715 1 K4 7 H6 R843 1 L3 8 P6 TP206 1 C5 2 H7 R717 1 J4 7 47 R845 1 M4 8 Q5 TP305 2 E6 3 L6 R718 1 J4 7 47 R846 1 K2 8 Q4 TP308 1 E5 3 G6 R719 1 J4 7 37 R847 1 K2 8 Q4 TP601 1 N5 6 K9 R720 1 33 7 K7 R848 1 L2 8 J4 TP602 1 L6 6 R9 R721 1 33 7 K9 R849 1 M4 8 Q3 TP603 1 L5 6 J2 R722 1 33 7 K8 R850 1 K2 8 Q4 TP604 1 15 6 M6 R723 1 H3 7 M7 R853 1 M4 8 N3 TP607 1 L4 6 J9 R725 1 J4 7 N7 R854 1 M4 8 N3 TP710 1 H4 7 H5 R726 1 J3 7 N6 R855 1 M2 8 BO TP715 1 J2 7 C6 R727 1 H3 7 N9 R859 1 N2 8 C1 R728 1 H3 7 N8 R861 1 N2 8 D1 R742 1 H2 7 B4 R863 1 N3 8 E1 R743 1 H2 7 05 R865 1 N4 8 E0 R744 1 62 7 D4 R867 1 N3 8 E1 R746 1 H3 7 E4 R871 1 N3 8 G2 R747 1 H3 7 E5 R872 1 M4 8 H1 R748 1 J2 7 A1 R873 1 N3 8 G1 R749 1 J2 7 B1 R874 1 N3 8 HO R750 1 H4 7 Q7 R875 1 N3 8 GO R752 1 G4 7 F5 R876 1 N3 8 HO R753 1 G4 7 F3 R877 1 M2 8 K2 R754 1 63 7 F3 R879 1 N2 8 L3 R756 1 63 7 G5 R757 1 G4 7 G4 RV210 1 B7 2 F9 R758 1 H3 7 H4 RV220 1 A4 2 M6 R759 1 H3 7 34 RV805 1 N4 8 F1 R760 1 H3 7 K4 R762 1 H3 7 K4 SK200 1 D5 2 E1 R763 1 H4 7 L4 SK205 1 B5 2 A5 R765 1 H3 7 H2 SK310 1 E7 3 R3 R766 1 63 7 J3 SK420 1 M8 1 M8 R767 1 H3 7 K2 SK501 1 G6 5 D6 R769 1 H3 7 L3 SK502 1 G6 5 D5 R771 1 H4 7 M3 SK503 1 G6 5 04 R772 1 G4 7 M2 SK504 1 65 5 D3 R774 1 H4 7 M2 SK505 1 65 5 D2 Copyright TEL 23 07 99 C6 3 38 T837 PCB Information M830 00 23 07 99 Copyright TEL M830 00 DI PartD 1838 8 T839 Power Amplifiers A Cauti
204. 9 015 23680 08 CAP CER 0805 680P 10 X7R 50V 123 036 1810000 RES ME 080s 10K E C261 015 24470 08 CAP CER 0805 4N7 10 X7R 50V Riia ida 15530 00 RES ME 090E coe C268 029 02220 02 CAP MICA 5 CASE 22P 5 WE OAEABATI 00 RES ME 0802 SKO C270 029 02560 03 CAP MICA 10 CASE 56P 2 ap AGD lt KEOME 00 Ice C271 029 02470 03 CAP MICA 10 CASE 47P 2 te p RES ME Oaoa IKS 0272 029 02560 03 GAP MICA 10 CASE 56P 2 ik econ sc 0273 029 02220 02 CAP MICA 5 CASE 22P 5 Riso 0312230 00 RES ME 0805 22ER C294 015 23680 08 CAP CER 0805 680P 10 X7R 50V Risi 036i 5100 00 RES MIE OSS 10K er C295 015 24470 08 CAP CER 0805 4N7 10 X7R 50V ie 03e 15100 00 RES ME OJORA OK E C297 015 23680 08 CAP CER 0805 680P 10 X7R 50V ku C298 015 24470 08 CAP CER 0805 4N7 10 X7R 50V RSS 096 1468000 RES M F 0805 05 5 o R154 036 14680 00 RES M F 0805 6K8 5 D101 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Lies Ramen UE OM Siac Ose gt 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T838 PCB Information D5 2 5 Ref Var IPN Description Ref Var IPN Description R157 036 12220 00 RES M F 0805 22E 5 R158 036 14100 00 RES M F 0805 1K 5 R159 036 15100 00 RES M F 0805 10K 5 R160 036 14470 00 RES M F 0805 4K7 5 R161 036 14100 00 RES M F 0805 1K 5 R162 036 17100 00 RES M F 0805 1M 5 R163 036 13680 00 RES M F 0805 680E 5 R164 036 14220 00 RES M F 0805 2K2 5 R165 036 14100 00 RES M F 0805 1K 5 R166 036 13680 00 RES M F 0805 680E 5
205. AB ECT OL RELIG on BRU Q109 000 10008 69 S XSTR SMD BC869 PNP 1W SOT89 06 O 0610008 CAP CER Babe GOD 107 BOW ati 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS 28 OSB DOG GED CEE bebe OPG OU Q113 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 010 Mee one CCAP CERRO AGU Q115 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS oD oo A AT SN Q117 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 b Q119 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C213 015 23680 08 CAP CER 0805 680P 10 X7R 50V Gis O 1001700 Le MoT SMD ER Trot ri cores Cate ene AP ch Gada a MOW Q123 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS RAA e Q125 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C217 015 03680 06 CAP CER 1210 680P NPO200VGRM42 aie 000 10008 57 18 XSTR SMD BCW70 PNP SOT23 88 wale Or eanan CAR CER 0005 GROP 1076 5504 Q129 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C219 015 03680 06 CAP CER 1210 680P NPO200VGRM42 U 000 100100 tLe XSTA MELEE DE DSD WE ee tace e XIN S Sss oBiem ema BLO 6 Q135 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 30 04 98 Copyright TEL IPN 220 01404 03 M830 00 T839 PCB Information D5 3 5 Ref Var IPN Description Ref Var IPN Description Q136 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 R207 036 15470 10 RES M F 0805 47K 1 Q137 000 00030 95 S XSTR 2N6107 PNP TO220 AF R208 036 15470 10 RES M F 0805 47K 1 Q201 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R209 036 14150 10 RES MF 0805 CHIP 1K5 1
206. Adjustment 1836 Only Two Point Modulation Adjustment CTCSS Encoder If Used FM Deviation Limiter Adjustment Line in Level Adjustment Copyright TEL 23 07 99 C3 2 T836 837 Initial Tuning amp Adjustment M830 00 Section Audio Processor Links Link Details Typical Options Synthesiser Alignment PA Alignment T836 Only Thermal Shutdown T836 Only Audio Processor Two Point Modulation Modulator Adjustment CTCSS Encoder If Used Limiter Adjustment Line Level Without Compressor Compressor Compressor On Line Input Only Compressor On Microphone Input Only Compressor On Both Line amp Microphone Inputs T836 837 Test Equipment Set up With T800 01 0010 T836 837 Test Equipment Set up Without T800 01 0010 23 07 99 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 3 3 1 Introduction When you receive your T836 transmitter or T837 exciter it will be run up and working on a particular frequency the default channel If you want to switch to a frequency that is within the 8MHz switching range i e 4MHz from the factory programmed fre quency you should only need to reprogram the transmitter exciter with the PGM800Win software refer to the PGM800Win programming kit and Section 3 2 below However if you want to switch to a frequency outside the 8MHz switching range you will have to reprogram and re tune the transmitter exciter to ensure correct operat
207. B MT 64W R754 036 14100 00 RES M F 0805 1K 5 SK533 240 04021 77 SKT JACK 1 3 PCB MT 64W R756 036 16470 00 RES M F 0805 470K 5 SK534 240 04021 77 SKT JACK 1 3 PCB MT 64W R757 036 16470 00 RES M F 0805 470K 5 SK535 240 04021 77 SKT JACK 1 3 PCB MT 64W R758 036 14120 00 RES M F 0805 1K2 5 SK805 240 10000 07 CONN SMD SKT 16W 2R M MATCH R759 036 13330 00 RES M F 0805 330E 5 SK810 240 04020 42 SKT 44 PIN SMD PLCC R760 036 13180 00 RES M F 0805 180E 5 R762 036 13100 00 RES M F 0805 100E 5 SW230 232 00010 26 SWITCH PUSH SPDT R ANG PCB MTG R763 036 13100 00 RES M F 0805 100E 5 R765 036 13680 00 RES M F 0805 680E 5 T210 053 00010 17 XFMR T4030 LINE MATCH POTCORE R766 036 14100 00 RES M F 0805 1K 5 T610 050 00016 50 COIL TAIT NO 650 455KHZ R767 036 13680 00 RES M F 0805 680E 5 R769 036 13180 00 RES M F 0805 180E 5 R771 036 14820 00 RES M F 0805 8K2 5 R772 036 15220 00 RES M F 0805 22K 5 R774 036 14820 00 RES M F 0805 8K2 5 R775 036 14560 00 RES M F 0805 5K6 5 R777 036 14220 00 RES M F 0805 2K2 5 R784 036 12680 00 RES M F 0805 68E 5 R785 036 14330 00 RES M F 0805 3K3 5 R786 036 12100 00 RES M F 0805 10E 5 R787 036 12100 00 RES M F 0805 10E 5 R790 036 13220 00 RES M F 0805 220E 5 R791 036 13100 00 RES M F 0805 100E 5 R792 036 14100 00 RES M F 0805 1K 5 R801 036 16150 00 RES M F 0805 150K 5 R802 036 15470 00 RES M F 0805 47K 5 R808 036 12100 00 RES M F 0805 10E 5 R809 036 14470 00 RES M F 0805 4K7 5 R810 036
208. BEAD 10M 10 16V cais Bid 087 GAP GER 0503AN 10 SR SO 0700 015 06100 08 GAP CER 1206 100N 10 X7R 50V 0320 015 24100 08 GAP CER 0805 1N 10 X7R 50V C108 A CARCER 0805 IND 20 8 SOM 330A 015 24470 08 CAP CER 0805 4N7 10 X7R 50V 705 015 2182001 Ab OER 0805 Bret Vat NEO Soy 5306 0160810001 CAP ELOXAA OM 209216U C706 015 22470 01 CAP CER 0805 47P 5 NPO 50V eae 01534100 08 CARGER 0805 1NA 024 TA BOV 0708 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM 0334 015 25100 08 CAP GER 0805 10N 10 X7R 50V 0709 015 06100 08 GAP CER 1206 100N 10 X7R 50V ADOS 5 C710 015 25100 08 GAP CER 0805 10N 10 X7R 50V 0336 015 24100 08 CAP CER 0805 1N 10 X7R 50V C338 015 25220 08 CAP CER 0805 22N 10 X7R 50V criz 015122470 011 CAP CER 0805 a7F NEO SOV C340 012 5410008 CAP CER 0505 N40 REDY 0720 015 06100 08 CAP CER 1206 100N 10 X7R 50V C342 015 06100 08 CAP CER 1206 100N 10 X7R 50V oie 0 15 06 10008 CAP CER 1206 100N 10 X A 204 333 613 2410008 CABICER 0805 ANAOSEX7RIG W 0724 014 08220 01 L CAP TANT 22UF10V276MSER C54 015 24100 08 CAB CER 0608 IN 108878 BOV 0725 014 08220 01 LJCAP TANT 22UF10V276MSER GE oie 54100 08 GAP GER 0805 ANAO XO ED 0726 015 25100 08 CAP CER 0805 10N 10 X7R 50V ie ME 54100 08 GACER Gece ANAD X A EOV 0727 015 23220 01 CAP CER 0805 220P 5 NPO 50V 0347 015 25470 08 CAP CER 0805 47N 10 X7R 50V Gis 01529220 Ol BOAR CER 0805 220F 57 NFO B0V 321001 o 146733 015 23470 08 GAP CER 0805 470P 10 X7R 50V 0348 015 24100 08 CAP CER 0805 1N 10
209. CAP ELE RA 220M 16V 10X12 5MM C369 015 23100 0 CAP CER 0805 100P 5 NPO 50V C249 020 09470 05 CAP ELE RAD 470M 16V 10X12 5MM C371 025 08100 02 CAP TANT BEAD 10M 10 16V C251 015 06100 08 CAP CER 1206 100N 10 X7R 50V C373 025 08100 02 CAP TANT BEAD 10M 10 16V C253 020 09100 03 CAP ELE RA 100M 16V 8X11MM C375 025 08100 02 CAP TANT BEAD 10M 10 16V C255 015 24100 08 CAP CER 0805 1N 10 X7R 50V C376 015 23100 0 CAP CER 0805 100P 5 NPO 50V C257 015 24100 08 CAP CER 0805 1N 10 X7R 50V C377 015 23100 0 CAP CER 0805 100P 5 NPO 50V C259 015 06100 08 CAP CER 1206 100N 10 X7R 50V C381 015 23100 0 CAP CER 0805 100P 5 NPO 50V C260A 015 24100 08 CAP CER 0805 1N 10 X7R 50V C383 015 25100 08 CAP CER 0805 10N 10 X7R 50V C260B 015 06100 08 CAP CER 1206 100N 10 X7R 50V C385 015 25100 08 CAP CER 0805 10N 10 X7R 50V C260C 020 09220 01 CAP ELE RA 220M 16V 10X12 5MM C390 025 08100 02 CAP TANT BEAD 10M 10 16V C261 020 09100 03 CAP ELE RA 100M 16V 8X11MM C391 015 25470 08 CAP CER 0805 47N 10 X7R 50V C262 020 09100 03 CAP ELE RA 100M 16V 8X11MM C392 015 23120 0 CAP CER 0805 120P 5 NPO 50V C264 015 06100 08 CAP CER 1206 100N 10 X7R 50V C393 015 23120 0 CAP CER 0805 120P 5 NPO 50V C266 020 07470 91 CAP ELE RA 4M7 63V 6X11MM BI P C394 015 25470 08 CAP CER 0805 47N 10 X7R 50V C268 020 07470 91 CAP ELE RA 4M7 63V 6X11MM BI P C395 015 25470 08 CAP CER 0805 47N 10 X7R 50V C270 015 06100 08 CAP CER 1206 100N 10 X7R 50V C397 015 25470 08 CAP CER 0805 47N 10 X7R 50V C272 015
210. COIL A W 4 5T 3 5MM HOR 0 8MM C813 015 24100 08 CAP CER 0805 1N 10 X7R 50V C822 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM LED1 008 00013 32 S LED 3 RED LO CURRENT NO MTG C823 015 25220 08 CAP CER 0805 22N 10 X7R 50V LED2 008 00013 35 S LED 3 GRN LO CURRENT NO MTG C824 015 25470 08 CAP CER 0805 47N 10 X7R 50V C826 015 23220 01 CAP CER 0805 220P 5 NPO 50V PL100 240 00010 55 PLUG 15 W D RANGE W W PNL MT C827 015 22330 01 CAP CER 0805 33P 5 NPO 50V PL205 240 00020 67 HEADER 6W 2X3 PCB MTG STD C828 015 25100 08 CAP CER 0805 10N 10 X7R 50V PL210 240 00020 67 HEADER 6W 2X3 PCB MTG STD C830 015 25470 08 CAP CER 0805 47N 10 X7R 50V PL215 240 00020 44 HEADER 10W X2R PCB MTG 5 2 C838 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM PL220 240 00020 67 HEADER 6W 2X3 PCB MTG STD C841 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C844 015 25100 08 CAP CER 0805 10N 10 X7R 50V Q210 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C910 015 02150 02 CAP CER HIQ1210 15P 5 NPO200V Q220 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C910A 015 01220 06 CAP CER 1210 2P2 NPO500VGRM42 Q230 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C920 015 02330 02 CAP CER HIQ1210 33P 5 NPO200V Q240 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C930 015 02270 02 CAP CER HIQ1210 27P 5 NPO200V Q250 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C940 015 02330 02 CAP CER HIQ1210 33P 5 NPO200V Q260 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C950 015 02150 02 CAP CER HIQ1210 15P 5 NPO200V Q270 000 00011 91 S XSTR
211. Changed from 47k IPN 036 15470 10 to 4k7 IPN 036 14470 10 Changed from 1k5 IPN 036 14150 10 to 3902 IPN 036 13390 10 Changed from 4k7 IPN 036 14470 10 to 3902 IPN 036 13390 10 Changed from 3k9 IPN 036 14390 00 to 5602 IPN 036 13560 00 Changed from 3904 IPN 036 13390 10 to 1004 IPN 036 13100 10 Changed from 100k NTC IPN 045 06100 05 to 10k NTC IPN 045 05100 02 Changed from 47k IPN 036 15470 10 to 4k7 IPN 036 14470 10 Changed from 47k IPN 036 15470 10 to 4k7 IPN 036 14470 10 Changed from 1k5 IPN 036 14150 10 to 3902 IPN 036 13390 10 Changed from 4k7 IPN 036 14470 10 to 3900 IPN 036 13390 10 Changed from 56k IPN 036 15560 10 to 6k8 IPN 036 14680 10 100k thermistor assembly replaced with 10k item values of associated compo nents changed accordingly 710394 411 447 The two M3x8 Torx screws which secure the module into the rack frame have been replaced by M3x8 Pozidriv screws IPN 349 00020 55 750101 2 3 5 6 Copyright TEL 23 07 99 IPN 220 01404 03 D5 2 4 T838 PCB Information M830 00 Ref Var_ IPN Description Ref Var IPN Description D103 008 00013 32 S LED 3 RED LO CURRENT NO MTG D105 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Note The T838 and T839 share the same basic design and 2107 008 00013 35 S LED 3 GRN LO CURRENT NO MTG D109 008 00013 32 S LED 3 RED LO CURRENT NO MTG are built on the same PCB While most components In D111 001 10000 70 S DIODE SMD BA
212. D 10M 10 16V C385 020 07470 04 CAP ELE RA 4M7 25V 20 8X13 SOL C215 014 08220 01 L CAP TANT 22UF10V276MSER C388 015 24100 08 CAP CER 0805 1N 10 X7R 50V C217 015 24220 08 CAP CER 0805 2N2 10 X7R 50V C391 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V C219 015 24100 08 CAP CER 0805 1N 10 X7R 50V C394 015 04100 04 CAP CER 1206 1N 10 X7R 50V C221 014 08220 01 L CAP TANT 22UF10V276MSER C396 015 04100 04 CAP CER 1206 1N 10 X7R 50V C223 015 06100 08 CAP CER 1206 100N 10 X7R 50V C399 015 24100 08 CAP CER 0805 1N 10 X7R 50V C225 015 06100 08 CAP CER 1206 100N 10 X7R 50V C503 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C227 015 06100 08 CAP CER 1206 100N 10 X7R 50V C505 015 06100 08 CAP CER 1206 100N 10 X7R 50V C229 015 23150 01 CAP CER 0805 150P 5 NPO 50V C510 015 25220 08 CAP CER 0805 22N 10 X7R 50V C230 015 06100 08 CAP CER 1206 100N 10 X7R 50V C513 015 25100 08 CAP CER 0805 10N 10 X7R 50V C232 015 23150 01 CAP CER 0805 150P 5 NPO 50V C535 015 06100 08 CAP CER 1206 100N 10 X7R 50V C233 020 08470 02 CAP ELE RA 47M 16V 6X11MM C550 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C235 015 24100 08 CAP CER 0805 1N 10 X7R 50V C605 015 24100 08 CAP CER 0805 1N 10 X7R 50V C237 020 07100 02 CAP ELE RA 1M 50V 5X11MM C610A 015 25100 08 CAP CER 0805 10N 10 X7R 50V C239 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C610B 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C241 015 06100 08 CAP CER 1206 100N 10 X7R 50V C611A 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C242 025 08100 02
213. D BAT18 S SW SOT23 Q790 000 10003 12 S XSTR SMD BFR31 N JFET SOT23 D350 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q795 000 10057 10 S XSTR SMD BR571 NPN SOT23 D360 001 10000 18 S DIODE SMD BAT18 S SW SOT23 Q810 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D610 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q820 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 D620 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q830 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D630 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q840 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D635 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 Q850 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D640 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q860 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D710 001 10000 99 S DIODE SMD BAV99 D SW SOT23 D720 001 10000 99 S DIODE SMD BAV99 D SW SOT23 R160 036 12100 00 RES M F 0805 10E 5 D730 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 R201 036 13560 00 RES M F 0805 560E 5 D740 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 R202 036 14100 00 RES M F 0805 1K 5 D810 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 R204 036 14220 00 RES M F 0805 2K2 5 R205 036 13220 00 RES M F 0805 220E 5 C210 002 10003 24 S IC SMD 324 4X O AMP SO14 R206 036 14100 00 RES M F 0805 1K 5 C220 002 10126 70 S IC SMD DS1267S10K 2XDIG POT R207 036 14390 00 RES M F 0805 3K9 5 C230 002 10003 24 S IC SMD 324 4X O AMP SO14 R208 036 13560 00 RES M F 0805 560E 5 C240 002 10040 53 S MC14053B SMD BREAK B4 MAKE R209 036 1
214. DC supply 13 8V nominal A7V supply runs directly off the 13 8V rail driving the fan control power control and alarm circuitry A crowbar diode is fitted for protection against connection to a power supply of incor rect polarity It also provides transient overvoltage protection Note A fuse must be fitted in the power supply line for the diode to provide effec tive protection 23 07 99 Copyright TEL M830 00 T838 839 Initial Adjustment D3 1 3 T838 839 Initial Adjustment e Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following section describes the full adjustment procedure to be carried out before operating the T838 839 Note The 1838 839 require no RF tuning or alignment Refer to Section 5 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components Refer also to Figure 3 3 which shows the location of the main adjustment controls The following topics are covered in this section Section Test Equipment Required Preliminary Checks Setting The Output Power Limiting The Maximum Output Power High Temperature Shutdown Power Level Remote Forward Power Meter Calibration Remote Reverse Power Meter Calibration Setting Alarm Levels Forward Power
215. DE SMD BAW56 D SW SOT23 Q770 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D230 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q775 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D240 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q780 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D250 008 00013 32 S LED 3 RED LO CURRENT NO MTG Q785 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D260 001 10084 33 S DIODE ZEN SMD 0 3W 3V3SOT23 Q790 000 10003 12 S XSTR SMD BFR31 N JFET SOT23 D270 001 10000 70 S DIODE SMD BAV70 D SW SOT23 Q795 000 10057 10 S XSTR SMD BR571 NPN SOT23 D280 008 00013 35 S LED 3 GRN LO CURRENT NO MTG Q810 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 D285 001 00011 70 S DIODE 1N4001 1A 50V Q820 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS Copyright TEL 30 04 98 IPN 220 01394 02 B6 2 6 T835 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description Q840 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS R309 036 17100 00 RES M F 0805 1M 5 Q850 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R311 036 10000 00 RES M F 0805 ZERO OHM Q860 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS R313 036 17100 00 RES M F 0805 1M 5 Q870 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R315 036 14100 00 RES M F 0805 1K 5 Q880 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R317 036 11470 00 RES M F 0805 4E7 10 Q890 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS R319 036 14330 00 RES M F 0805 3K3 5 Q895 000 10008 48 S XSTR SMD BCW
216. E3 1 K6 C22 1 03 1 K5 C23 1 02 1 K4 C24 1 02 1 14 C25 1 02 1 15 C26 1 05 1 04 C40 1 D5 1 D3 Cv1 1 05 1 D3 D1 1 07 1 B4 D2 1 07 1 04 D3 1 D7 1 B3 D4 1 D7 1 03 L1 1 08 1 B3 L2 1 B7 1 03 HL3 1 B6 1 D4 L4 1 D6 1 E3 L5 1 D7 1 F6 L6 1 A4 1 J4 L7 1 D2 1 K6 L8 1 02 1 15 PL 2 2 B4 2 F3 PL 3 2 03 2 G3 PL 4 2 08 2 F4 PL 5 2 01 2 G4 Q1 1 06 1 F3 Q2 1 D4 1 G3 Q3 1 04 1 G4 Q4 1 D2 1 K7 Q5 1 B3 1 K5 R1 1 B8 1 B3 R3 1 C7 1 C4 R5 1 D6 1 F3 R6 1 D4 1 G3 R7 1 D3 1 G3 30 04 98 Copyright TEL IPN 220 01176 03 M830 00 T830 VCO PCB Information E2 7 T830 VCO PCB IPN 220 01176 03 Bottom Side Copyright TEL 30 04 98 IPN 220 01176 03 E2 8 T830 VCO PCB Information M830 00 N L H e CO x E a ep eu C26 SGS O R RSE N 01 01 BLIGE 4 EEE EARR 3 ale ARS N O IE DESA E Q gt La FB C19 1 A B C D E T830 VCO PCB IPN 220 01176 03 Top Side 30 04 98 Copyright TEL M830 00 FI PartF Installation This part of the manual is divided into the sections listed below These sections give a brief description of the basic rack mounting and wiring procedures for the T835 receiver T836 transmi
217. E4 1 F7 R229 1 04 2 H7 R146 1 E4 1 G7 R230 1 14 2 12 R148 1 05 1 D5 R231 1 F5 2 02 R149 1 05 1 04 R232 1 K4 2 K1 R150 1 04 1 FO R237 1 05 2 K8 R151 1 B5 1 D5 RV101 1 04 1 H8 R152 1 B5 1 03 RV103 1 04 1 H6 R153 1 05 1 F4 RV105 1 03 1 J5 R154 1 05 1 F3 RV107 1 03 1 J3 R155 1 03 1 F2 RV109 1 P5 1 02 R156 1 03 1 F3 RV111 1 P5 1 D1 R157 1 04 1 GO RV113 1 03 1 DO R158 1 04 1 H3 RV115 1 03 1 KO R159 1 04 1 H4 SK101 1 K3 1 A2 R160 1 03 1 J5 SK103 1 B4 1 B2 R161 1 B3 1 J3 SK201 1 N3 2 D3 R162 1 B3 1 K4 SK203 1 N7 2 C1 R163 1 P8 1 K5 R164 1 B3 1 K4 R165 1 B4 1 K4 R166 1 P7 1 15 R168 1 E4 1 A1 R169 1 E4 1 A0 R170 1 04 1 BO R171 1 E4 1 BO R172 1 E4 1 BO R173 1 P6 1 01 R174 1 P6 1 01 R175 1 04 1 00 R176 1 04 1 DO R177 1 04 1 DO R178 1 03 1 E1 R179 1 04 1 E0 R180 1 D4 1 E0 R181 1 E3 1 F2 R182 1 D4 1 E0 R183 1 D4 1 F1 R184 1 E3 1 G1 R185 1 E2 1 J0 R186 1 02 1 H1 R187 1 E2 1 HO R188 1 D2 1 L1 R189 1 D2 1 11 R190 1 03 1 M1 R191 1 B2 1 P1 R192 1 B2 1 P1 R193 1 02 1 Q1 R194 1 D2 1 H0 R195 1 D3 1 J0 R196 1 D3 1 J0 R197 1 03 1 11 R201 1 N6 2 D1 R202 1 N6 2 D1 R203 1 17 2 15 R204 1 N6 2 D1 R205 1 K7 2 K4 R206 1 05 2 E8 R207 1 04 2 F8 R208 1 05 2 G9 R209 1 D5 2 G8 R210 1 D5 2 G8 R211 1 04 2 H9 R212 1 D4 2 18 R213 1 D5 2 E7 R214 1 E4 2 J8 R215 1 H3 2 B8 R216 1 P6 2 E2 R217 1 P6 2 E2 R218 1 E5 2 E7 R219 1 H6 2 B6 R220 1 E5 2 F7 R222 1 05 2 G7 30 04 98 Copyr
218. E9 P255 1 D4 2 R4 R201 1 B2 2 E9 R291 1 C8 2 N1 IC330 1 E8 3 M8 P257 1 02 2 R4 R202 1 01 2 F9 R292 1 08 2 Q2 IC610 1 M5 6 G8 P259 1 B8 2 R3 R203 1 B3 2 D8 R293 1 09 2 02 IC630 1 N5 6 K5 P261 1 B8 2 R3 R204 1 07 2 B6 R294 1 09 2 Q1 IC640 1 M5 6 F1 P263 1 B2 2 R2 R205 1 07 2 D6 R295 1 08 2 R1 IC640 1 M5 6 R6 P267 1 08 2 N2 R206 1 B7 2 G8 R296 1 D6 2 PO IC640 1 M5 6 N6 P269 1 D8 2 P2 R207 1 B6 2 G8 R297 1 D7 2 P1 1C650 1 15 6 F4 P271 1 09 2 N1 R208 1 B6 2 G8 R298 1 D7 2 Q0 C700 1 K3 7 A8 P273 1 D9 2 PO R209 1 C6 2 H8 R299 1 07 2 RO IC710 1 J2 7 E8 P275 1 D7 2 00 R210 1 B6 2 H7 R302 2 F7 3 A7 IC710 1 J2 7 C6 P290 1 D5 2 FO R212 1 D4 2 F6 R304 2 E7 3 B7 IC710 1 J2 7 GO P291 1 D5 2 FO R213 1 C4 2 G6 R306 2 F7 3 C8 IC710 1 J2 7 D6 P805 1 M2 8 A7 R214 1 D4 2 G6 R308 2 E8 3 C9 10710 1 J2 7 D7 P810 1 L3 8 A5 R215 1 C4 2 H6 R310 2 F8 3 C9 IC710 1 J2 7 D6 P820 1 14 8 M8 R216 1 03 2 K7 R312 2 F8 3 D8 IC710 1 J2 7 C6 P825 1 L4 8 M8 R217 1 A4 2 M8 R314 2 F8 3 D7 IC720 1 33 7 P6 P830 1 14 8 M8 R218 1 A4 2 N7 R316 2 F8 3 E8 IC720 1 J3 7 JO P835 1 14 8 M7 R219 1 B4 2 N8 R318 2 F8 3 E9 IC720 1 J3 7 N7 P840 1 14 8 M7 R221 1 B7 2 R7 R320 2 F8 3 G9 IC720 1 J3 7 M7 R223 1 B4 2 K6 R322 2 F8 3 H8 IC720 1 33 7 K7 PL100 1 P3 1 FO R224 1 C4 2 K5 R324 2 F7 3 J8 IC720 1 33 7 F8 PL205 1 05 2 J8 R225 1 B4 2 15 R326 2 F7 3 J7 IC720 1 33 7 KO PL210 1 03 2 H4 R226 1 B4 2 14 R328 2 F7 3 K8 10730 1 J4 7 H8 PL215 1 04 2 K3 R227 1 B4 2 M4 R330 2 F8 3 M8 IC730 1 J4 7 G7 PL220 1 04 2 H2
219. Fan Control Logic Diagram Copyright TEL 23 07 99 D2 8 T838 839 Circuit Operation M830 00 Comparator IC101 pins 12 13 amp 14 are set to switch at heatsink temperatures greater than 90 C or RF power module flange temperatures greater than 110 C and pins 1 2 amp 3 at temperatures less than 10 C A logic AND function is applied to the comparator outputs by Q103 and Q105 thereby turning on the fan unconditionally via Q107 and Q109 if the heatsink tem perature exceeds 90 C or the module flange temperatures exceed 110 C A logic OR function is applied to comparator IC101 pins 12 13 amp 14 and Tx KEY signals thereby turning on the fan when the transmitter is keyed and the temperature is between 10 C and 90 C or 110 C for the module flanges If the temperature drops below 10 C Q105 is turned off preventing Q103 from acti vating the fan 2 4 Power Supply amp Regulator Circuits Refer to the control section circuit diagram in Section 5 O kd Crowbar 7V Diode A Reg Temp V V Sense 3 Fan a 13 8V aii Control Nom y To Fan Clamp Power 7 Power Clamp Set y Power E Power q Control O From Power Directional Control Coupler Vout Figure 2 5 T838 839 Power Supply Regulator Circuitry Block Diagram The T838 839 are designed to operate off a 10 8 16V
220. Input Coax Routing Copyright TEL 30 04 98 l Il M830 00 30 04 98 Copyright TEL M830 00 Tools Required 11 1 1 Tools Required Allen Head Screwdriver 2mm AF Flat Blade Screwdriver 3mm AF Pozidriv Screwdrivers No 1 for M3 screws No 2 for M4 screws Torx Screwdrivers T10 for M3 screws T20 for M4 screws Spanners 1 4 AF for D range locating pins 5 5mm AF for M3 nuts 6mm AF for SMC connector 7mm AF for M4 nuts Solder Soldering Iron a If you do not have a 5 5mm spanner you can use long nosed pliers to carefully grip the M3 nuts on the D range securing screws and locating pins Copyright TEL 30 04 98 11 2 Tools Required M830 00 30 04 98 Copyright TEL M830 00 T835 836 837 SII SI Conversion 12 1 2 T835 836 837 SII SI Conversion 2 1 Introduction You must make a number of modifications to enable a T830 Series II receiver exciter or transmitter to operate in a Series I rack frame These changes can be split into two groups mechanical and electrical as described below Mechanical These changes involve e putting on a new front panel because of the differences in height and width between a Series II and Series I panel e adding D range locating pins as the Series I rack requires them for alignment Electrical These changes involve e making sure there is pin compatibility for D Range 1 pin 7 between the Series II module and the Series I
221. Is RV109 N Rotate RV109 fully clockwise Is RV115 N fully clockwise Rotate RV115 fully clockwise y Is the PA keyed D range pin 12 low Y gt gt Is IC201 pin 2 gt 10V Is IC201 pin 3 gt 13V N fully clockwise Earth D range pin 12 or connect to exciter key line Replace Q135 8 Q137 then check 10201 pin 2 for short circuit Y 7 Is the drive from the N Set drive to exciter 600MW 1W 600mW 1W Y Y Is the output from z N Check IC201 solder joints gt zi m 10201 gt 60W If joints OK replace module Refer to Figure 4 1 B na RK Check components in LPF 4 iD cal ue Check output N type connector E output bower e for short circuit or excessive wear Refer to Section 3 3 Replace parts as necessarv Y Is maximum power gt 50W over entire frequency range N Y Frequency Ranges Return PA to your local 10 2 Tait service centre e WSE 30 04 98 Copyright TEL D4 8 T838 839 Fault Finding M830 00 EE Is maximum power gt 100W RF ae AS over entire frequency range N Y Is RV109 N Rotate RV109 fully clockwise fully clockwise Y Y Is RV115 N Rotate RV115 fully clockwise fully clockwise Y Y Is the PA keyed N Earth D range pin 12 or
222. K7 5 R693 036 16100 00 RES M F 0805 100K 5 R866 036 16820 00 RES M F 0805 820K 5 R696 036 15560 00 RES M F 0805 56K 5 R867 036 16820 00 RES M F 0805 820K 5 R701 036 12220 00 RES M F 0805 22E 5 R868 036 14470 00 RES M F 0805 4K7 5 R702 036 17100 00 RES M F 0805 1M 5 R869 036 15270 10 RES M F 0805 27K 1 R703 036 17100 00 RES M F 0805 1M 5 R870 036 17120 10 RES MF 0805 CHIP 1M2 1 R706 036 15150 00 RES M F 0805 15K 5 R871 036 16820 10 RES MF 0805 CHIP 820K 1 R707 036 16100 00 RES M F 0805 100K 5 R872 036 14510 10 RES MF 0805 CHIP 5K1 1 R708 036 13100 00 RES M F 0805 100E 5 R873 036 14220 00 RES M F 0805 2K2 5 R709 036 13100 00 RES M F 0805 100E 5 R875 036 14470 00 RES M F 0805 4K7 5 R710 036 13100 00 RES M F 0805 100E 5 R876 036 16100 00 RES M F 0805 100K 5 R711 036 13100 00 RES M F 0805 100E 5 R877 036 16100 00 RES M F 0805 100K 5 R712 036 12100 00 RES M F 0805 10E 5 R878 036 16100 00 RES M F 0805 100K 5 R742 036 13150 00 RES M F 0805 150E 5 R879 036 16100 00 RES M F 0805 100K 5 R743 036 13150 00 RES M F 0805 150E 5 R881 036 15470 00 RES M F 0805 47K 5 R744 036 12220 00 RES M F 0805 22E 5 R882 036 15470 00 RES M F 0805 47K 5 R746 036 12220 00 RES M F 0805 22E 5 R884 036 16150 00 RES M F 0805 150K 5 R747 036 12220 00 RES M F 0805 22E 5 R885 036 16150 00 RES M F 0805 150K 5 R748 036 15470 00 RES M F 0805 47K 5 R886 036 15100 10 RES M F 0805 10K 1 R749 036 15470 00 RES M F 0805 47K 5 R887 036 14100 10 RES M
223. M F 0805 100K 5 R850 036 13470 00 RES M F 0805 470E 5 R677 036 15470 00 RES M F 0805 47K 5 R853 036 14470 00 RES M F 0805 4K7 5 R68 036 13100 00 RES M F 0805 100E 5 R854 036 14470 00 RES M F 0805 4K7 5 R685 036 15150 00 RES M F 0805 15K 5 R855 036 14470 00 RES M F 0805 4K7 5 R689 036 12100 00 RES M F 0805 10E 5 R859 036 16150 00 RES M F 0805 150K 5 R693 036 16100 00 RES M F 0805 100K 5 R861 036 16150 00 RES M F 0805 150K 5 R696 036 15560 00 RES M F 0805 56K 5 R863 036 16150 00 RES M F 0805 150K 5 R70 036 12220 00 RES M F 0805 22E 5 R865 036 16100 00 RES M F 0805 100K 5 R702 036 17100 00 RES M F 0805 1M5 R867 036 16100 00 RES M F 0805 100K 5 R703 036 17100 00 RES M F 0805 1M 596 R871 036 15470 00 RES M F 0805 47K 5 R706 036 15150 00 RES M F 0805 15K 5 R872 036 14470 00 RES M F 0805 4K7 5 R708 036 16100 00 RES M F 0805 100K 5 R873 036 15330 00 RES M F 0805 33K 5 R710 036 13100 00 RES M F 0805 100E 5 R874 036 14470 00 RES M F 0805 4K7 5 R711 036 13100 00 RES M F 0805 100E 5 R875 036 15470 00 RES M F 0805 47K 5 R712 036 12100 00 RES M F 0805 10E 5 R876 036 14470 00 RES M F 0805 4K7 5 R713 036 12220 00 RES M F 0805 22E 5 R877 036 14470 00 RES M F 0805 4K7 5 R715 036 14100 00 RES M F 0805 1K 5 R879 036 15100 00 RES M F 0805 10K 5 R717 036 14270 00 RES M F 0805 2K7 5 R718 036 15560 00 RES M F 0805 56K 5 RV210 040 05100 23 POT 10K LOG PCB 15MM SLOT SFT R719 036 15560 00 RES M F 0805 56K 5 RV220 042 05470 06 RES
224. M F 0805 10K 5 R277 036 16100 00 RES M F 0805 100K 5 R661 036 15100 00 RES M F 0805 10K 5 R278 036 16120 00 RES M F 0805 120K 5 R665 036 16100 00 RES M F 0805 100K 5 R279 036 17100 00 RES M F 0805 1M 5 R669 036 15470 00 RES M F 0805 47K 5 R280 036 15100 00 RES M F 0805 10K 5 R673 036 16100 00 RES M F 0805 100K 5 R282 036 15560 00 RES M F 0805 56K 5 R677 036 15470 00 RES M F 0805 47K 5 R283 036 15560 00 RES M F 0805 56K 5 R681 036 13100 00 RES M F 0805 100E 5 R284 036 17100 00 RES M F 0805 1M 5 R685 036 15150 00 RES M F 0805 15K 5 R285 036 10000 00 RES M F 0805 ZERO OHM R689 036 12100 00 RES M F 0805 10E 5 R286 036 14220 00 RES M F 0805 2K2 5 R693 036 16100 00 RES M F 0805 100K 5 R287 036 15100 00 RES M F 0805 10K 5 R696 036 15560 00 RES M F 0805 56K 5 R288 036 15150 00 RES M F 0805 15K 5 R701 036 12220 00 RES M F 0805 22E 5 R289 036 16100 00 RES M F 0805 100K 5 R702 036 17100 00 RES M F 0805 1M 5 R290 036 13680 00 RES M F 0805 680E 5 R703 036 17100 00 RES M F 0805 1M 5 R291 036 10000 00 RES M F 0805 ZERO OHM R706 036 15150 00 RES M F 0805 15K 5 R292 036 14470 00 RES M F 0805 4K7 5 R708 036 16100 00 RES M F 0805 100K 5 R293 036 15470 00 RES M F 0805 47K 5 R710 036 13100 00 RES M F 0805 100E 5 R294 036 14470 00 RES M F 0805 4K7 5 R711 036 13100 00 RES M F 0805 100E 5 R295 036 14270 00 RES M F 0805 2K7 5 R712 036 12100 00 RES M F 0805 10E 5 R296 036 14100 00 RES M F 0805 1K 5 R713 036 12220 00 RES M F 0805 22E 5 R297 036 1
225. M F 0805 1M 5 R617 036 10000 00 RES M F 0805 ZERO OHM R272 036 13560 00 RES M F 0805 560E 5 R619 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R273 036 15120 00 RES M F 0805 12K 5 R621 032 31100 00 RES M F PWR 1E0 5 1W 12X4 5MM R274 036 15150 00 RES M F 0805 15K 5 R625 036 14100 00 RES M F 0805 1K 5 R275 036 14270 00 RES M F 0805 2K7 5 R629 032 33270 00 RES M F PWR 270E 5 1W 12X4 5 R277 036 16100 00 RES M F 0805 100K 5 R633 036 14680 00 RES M F 0805 6K8 5 R278 036 16120 00 RES M F 0805 120K 5 R637 036 12220 00 RES M F 0805 22E 5 R279 036 17100 00 RES M F 0805 1M 5 R641 036 14150 00 RES M F 0805 1K5 5 R280 036 15100 00 RES M F 0805 10K 5 R645 036 13470 00 RES M F 0805 470E 5 R282 036 15560 00 RES M F 0805 56K 5 R649 036 14470 00 RES M F 0805 4K7 5 R283 036 15560 00 RES M F 0805 56K 5 R653 036 15100 00 RES M F 0805 10K 5 R284 036 17100 00 RES M F 0805 1M 5 R657 036 15100 00 RES M F 0805 10K 5 R285 036 10000 00 RES M F 0805 ZERO OHM R661 036 15100 00 RES M F 0805 10K 5 R286 036 14220 00 RES M F 0805 2K2 5 R665 036 16100 00 RES M F 0805 100K 5 R287 036 15100 00 RES M F 0805 10K 5 R669 036 15470 00 RES M F 0805 47K 5 R288 036 15150 00 RES M F 0805 15K 5 R673 036 16100 00 RES M F 0805 100K 5 R289 036 16100 00 RES M F 0805 100K 5 R677 036 15470 00 RES M F 0805 47K 5 amp R290 10 036 13560 00 RES M F 0805 560E 5 R681 036 13100 00 RES M F 0805 100E 5 amp R290 13 036 13560 00 RES M F 0805 560E 5 R685 036 15150 00 RES M F 0805 15K 5
226. M F 0805 330K 5 PL205 240 00020 67 HEADER 6W 2X3 PCB MTG STD R258 036 16150 00 RES M F 0805 150K 5 PL210 240 00020 67 HEADER 6W 2X3 POB MTG STD R259 036 15220 00 RES M F 0805 22K 5 PL215 240 00020 44 HEADER 10W X2R PCB MTG 5 2 R260 036 15470 00 RES M F 0805 47K 5 PL220 240 00020 67 HEADER 6W 2X3 PCB MTG STD R262 036 15470 00 RES M F 0805 47K 5 R263 036 14470 00 RES M F 0805 4K7 5 Q210 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 10 036 15220 00 RES M F 0805 22K 5 Q220 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 8R264 138 036 15220 00 RES M F 0805 22K 5 Q230 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 15 036 15270 00 RES M F 0805 27K 5 Q240 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R264 20 036 15220 00 RES M F 0805 22K 5 Q250 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 8R264 23 036 15220 00 RES M F 0805 22K 5 Q260 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS 8R264 25 036 15270 00 RES M F 0805 27K 5 Q270 000 00011 91 S XSTR BD139 NPN AF PWR TO126 8R265 10 _ 036 15150 00 RES M F 0805 15K 5 Q305 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R265 138 036 15150 00 RES M F 0805 15K 5 Q310 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS 8R265 15 036 15180 00 RES M F 0805 18K 5 Q315 000 00012 15 S XSTR BD234 PNP AF PWR TO126 8R265 20 _ 036 15150 00 RES M F 0805 15K 5 Q320 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF 8R265 23 036 15150 00 RES M F 0805 15K 5 Q325 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF 8R265 25 036 15180 00 RES M F 0
227. M F 0805 4K7 5 R184 036 14100 00 RES M F 0805 1K 5 R185 036 03100 02 RES 100E 1206 200V 250MW RCO1 R186 036 13100 00 RES M F 0805 100E 5 R187 036 03150 03 RES 1218 PWR CHIP 150E 20 1W R188 036 13220 00 RES M F 0805 220E 5 R189 036 12100 00 RES M F 0805 10E 5 R190 036 12220 00 RES M F 0805 22E 5 R191 036 14100 10 RES M F 0805 CHIP 1K 1 R192 036 13220 10 RES 0805 220E 1 R193 036 12100 00 RES M F 0805 10E 5 R194 036 03220 03 RES 1218 PWR CHIP 220E 20 1W R195 036 14220 00 RES M F 0805 2K2 5 R196 036 13100 00 RES M F 0805 100E 5 R197 036 10000 00 RES M F 0805 ZERO OHM R203 036 02100 02 RES 10E 1206 200V 250MW RC01 R205 036 02100 02 RES 10E 1206 200V 250MW RC01 R206 036 13390 10 RES MF 0805 CHIP 390E 1 Copyright TEL 30 04 98 IPN 220 01404 03 D5 3 6 T839 PCB Information M830 00 T839 Mechanical 8 Miscellaneous Parts 220 01404 03 IPN Legend Description IPN Legend Description 000 00030 95 15 Q137 319 01152 00 23 SHIELD A3M2250 F THRU MTG 004 00687 02 3 18 IC201 1C202 319 01190 01 3 SHIELD WALL HARM FILTER 012 04100 05 35 CAP F THRU 1N SUPPR FLTR S MTG 319 01201 00 41 SHIELD LID HARM FILTER 012 04150 01 26 CAP CER F THRU 1N5 NO LEAD 319 01202 00 4 SHIELD CONTROL CIRCUIT 039 05050 00 11 R223 319 30064 00 17 SPACER HSINK RF MODULE 045 06100 05 20 AA 2 FOR MODULE 345 00040 16 27 SCRW M3X20MM P POZ ST BZ 349 00010 59 21 SCRW 6 32 X 3 8 P PH T T ZP 051 00005 36 9 C203 IC205 349 00020 07 8 SCRW 4 40 X 5 16 P POZ T T
228. M830 00 1 1830 Series Il Base Station Equipment 136 174MHz Service Manual Issue 201 August 1999 M830 00 201 Copyright TEL 23 07 99 M830 00 T800 7 Head Office New Zealand Tait Electronics Ltd 558 Wairakei Road P O Box 1645 Christchurch New Zealand Phone 64 3 358 3399 Fax 64 3 358 3636 Radio Systems Division 535 Wairakei Road P O Box 1645 Christchurch New Zealand Phone 64 3 358 3399 Fax 64 3 358 2825 Australia Tait Electronics Aust Pty Ltd 186 Granite Street Geebung Queensland 4034 P O Box 679 Virginia Queensland 4014 Australia Phone 61 7 3865 7799 Toll Free 1800 077 112 Fax 61 7 3865 7990 Beijing Tait Mobile Radio HK Ltd Canada Tait Mobile Radio Inc Unit 5 158 Anderson Avenue Markham Ontario L6E1A9 Canada Phone 1 905 472 1100 Toll Free 1 800 890 8248 Fax 1 905 472 5300 France Tait France Sarl 2 Avenue de la Cristallerie 92 316 S vres Cedex France Phone 33 1 41 14 05 50 Fax 33 1 41 14 05 55 Germany Tait Mobilfunk GmbH Willst tterstrafie 50 D 90449 Niirnberg 60 Germany Phone 49 911 96 746 0 Fax 49 911 96 746 79 Hong Kong Tait Mobile Radio HK Ltd Unit 2216 North Tower Concordia Plaza 1 Science Museum Road Tsim Sha Tsui East Kowloon Phone 852 2369 3040 Fax 852 2369 3009 New Zealand Tait Communications Ltd Unit 4 75 Blenheim Road P O Box 1185 Christchurch Phone 64 3 348 3301 Fax 64 3 34
229. Mains Power Supply The T807 10 0000 is a switching power supply capable of supplving up to 15A at 11 14V DC It requires a mains supply of 230V 50Hz or 115V 60Hz nominal values which can be internally selected with a switch The T807 10 0000 is designed to power T800 Series II 50W transmitters plus receivers etc and requires a T800 44 0000 guide to fit into a T800 Series II rack frame Refer to the T800 Ancillary Equipment Service Manual for more information T808 10 0000 Mains Power Supply The T808 10 0000 is a switching power supply capable of supplying up to 25A at 11 14V DC It requires a mains supply of 230V 50Hz or 115V 60Hz nominal values which can be internally selected with a switch The T808 10 0000 is designed to power T800 Series II 100W transmitters plus receivers etc and requires a T800 44 0000 guide to fit into a T800 Series II rack frame Refer to the T800 Ancillary Equipment Service Manual for more information 23 07 99 Copyright TEL M830 00 l I Part Using T830 Series Il Equipment In A Series Rack Frame This part of the manual describes how to modify T830 Series II equipment for operation in a T800 Series I rack frame Section Tools Required T835 836 837 SII SI Conversion Introduction Method T838 839 SII SI Conversion Introduction Method T835 Component Changes T836 837 Component Changes 1837 RF Output Coax Routing T838 839 Component Changes T838 839 RF
230. O Locking Using a DMM monitor the VCO control voltage at PL4 1 or the junction of L1 amp R1 on the VCO PCB If the synthesiser is locked and the VCO aligned the voltage at this point should be between 5 and 13V If the VCO is not locked refer to the synthesiser fault finding charts Section 5 7 3 5 4 3 Mute Operation The front panel Gate LED will show the status of the mute circuitry and will turn on when a signal is received above the threshold level Check that PL250 is linked correctly noise mute l 2 carrier mute 2 3 Check that the mute gate opens as follows noise mute rotate RV230 front panel gating sensitivity fully clock wise and check that the front panel Gate LED turns on carrier mute rotate RV235 carrier mute fully clockwise and check that the front panel Gate LED turns on If the mute fails to operate correctly refer to the noise mute fault finding chart Section 5 7 4 or the carrier mute fault finding chart Section 5 7 5 30 04 98 Copyright TEL M830 00 T835 Fault Finding B5 5 5 5 RF Checks 5 5 1 VCO Frequency Check that the VCO is phase locked refer to Section 5 4 2 Connect a frequency counter level 19dBm to the VCO input to the mixer IC410 Monitor the local oscillator frequency and check that it is 21 4MHz above the required receive frequency Refer to the synthesiser fault finding charts Section 5 7 3 for further information 5 5 2 RF Sensitivitv Ensure t
231. ODE VARICAP BB809 L1 056 00021 56 IND FXD 3 3UH AX 10X4 2 PHEN L2 056 00021 60 IND FXD 330NH AX N MAG 6 6 2 7 L3 A 055 01004 00 COIL TROID 103NH 22P 9T T830TX L3 B 055 01000 00 COIL TOROID 110NH 22P 10T T830 L3 Cc 055 01003 00 COIL TROID 91NH 22P 8T T830RX L3 D 055 01004 00 COIL TROID 103NH 22P 9T T830TX L4 056 00021 52 IND FXD 820NH 10 NON MAGNETIC L5 056 00021 56 IND FXD 3 3UH AX 10X4 2 PHEN L6 052 08135 35 COIL A W 3 5T 3 5MM HOR 0 8MM L7 056 00021 56 IND FXD 3 3UH AX 10X4 2 PHEN L8 052 08130 45 COIL A W 4 5T 3 0MM HOR 0 8MM Q1 000 10003 10 S XSTR SMD BFJ310 JFET UHF Q2 000 10057 10 S XSTR SMD BR571 NPN SOT23 Q3 000 10057 10 S XSTR SMD BR571 NPN SOT23 Q4 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS Qs 000 00032 47 S XSTR MRF559 NPN XPACK 0 5W R1 036 12220 00 RES M F 0805 22E 5 R3 036 11470 00 RES M F 0805 4E7 10 R5 A 036 13390 00 RES M F 0805 390E 5 R5 B 036 13390 00 RES M F 0805 390E 5 R5 C 036 13330 00 RES M F 0805 330E 5 R5 D 036 13390 00 RES M F 0805 390E 5 R6 036 12560 00 RES M F 0805 56E 5 R7 036 14100 00 RES M F 0805 1K 5 R8 036 12560 00 RES M F 0805 56E 5 R9 036 14100 00 RES M F 0805 1K 5 R10 036 12100 00 RES M F 0805 10E 5 R11 036 14270 00 RES M F 0805 2K7 5 R12 036 13180 00 RES M F 0805 180E 5 30 04 98 Copyright TEL IPN 220 01176 03 M830 00 T830 VCO PCB Information E2 5 T830 VCO Mechanical 8 Miscellaneous Parts 220 01176 03 IPN Legend Description 220 01176 03 PCB T83X
232. OTTKEY SOD123 C687 015 24100 08 CAP CER 0805 1N 10 X7R 50V D820 001 10065 00 DIODE BAT65 SCHOTTKEY SOD123 C690 015 06100 08 CAP CER 1206 100N 10 X7R 50V D860 001 10000 70 S DIODE SMD BAV70 D SW SOT23 C693 025 08100 02 CAP TANT BEAD 10M 10 16V D880 001 10000 70 S DIODE SMD BAV70 D SW SOT23 C700 015 06100 08 CAP CER 1206 100N 10 X7R 50V C702 015 24100 08 CAP CER 0805 1N 10 X7R 50V C210 002 00012 40 S IC 358 DUAL O AMP C703 015 24100 08 CAP CER 0805 1N 10 X7R 50V C240 002 00014 05 S IC TDA7231 1 6W AF PWR C705 015 21820 01 CAP CER 0805 8P2 1 4P NPO 50V C260 002 00014 05 S IC TDA7231 1 6W AF PWR C707 015 22470 01 CAP CER 0805 47P 5 NPO 50V C270 002 00012 40 S IC 358 DUAL O AMP C708 015 22470 01 CAP CER 0805 47P 5 NPO 50V C280 002 00012 40 S IC 358 DUAL O AMP C709 015 22100 01 CAP CER 0805 10P 1 2P NPO 50V C340 002 00061 20 S IC NE612AN DBM 8 OSCILLATOR C710A 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C350 002 00061 40 S IC NE614AN LO PWR IF 16DIL C710B 015 06100 08 CAP CER 1206 100N 10 X7R 50V C390 002 00012 25 S IC TLO84 4X O AMP JFET IP C710C 015 25100 08 CAP CER 0805 10N 10 X7R 50V C410 002 00022 01 S MIXER DOUBLE BLNCD 2 750MHZ C711 015 23100 01 CAP CER 0805 100P 5 NPO 50V C610 002 00014 58 S IC 78L05 5V 100MA REG TO92 c712 015 23100 01 CAP CER 0805 100P 5 NPO 50V C630 002 00014 62 S IC 317L 100MA REG 3TER TO92 C713 015 25100 08 CAP CER 0805 10N 10 X7R 50V C640 002 10003 58 S IC SMD LM358 DUAL O AMP
233. P CER 0805 68N 10 X7R 50V C743 015 22470 01 CAP CER 0805 47P 5 NPO 50V C291 014 08220 01 L CAP TANT 22UF10V276MSER C745 015 24100 08 CAP CER 0805 1N 10 X7R 50V C293 015 27100 10 CAP CER 0805 1M 80 20 Y5V 16V C750 025 08100 03 CAP 10M 35V 20 TANT 5MM L S C294 015 22470 01 CAP CER 0805 47P 5 NPO 50V C757 015 25100 08 CAP CER 0805 10N 10 X7R 50V C295 022 06470 02 CAP MYLAR 470N 10 50V C759 015 25100 08 CAP CER 0805 10N 10 X7R 50V C304 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C761 015 25100 08 CAP CER 0805 10N 10 X7R 50V C308 015 25100 08 CAP CER 0805 10N 10 X7R 50V C762 014 08220 01 L CAP TANT 22UF10V276MSER C312 015 24100 08 CAP CER 0805 1N 10 X7R 50V C764 015 25100 08 CAP CER 0805 10N 10 X7R 50V C316 015 24100 08 CAP CER 0805 1N 10 X7R 50V C765 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C317 015 23100 01 CAP CER 0805 100P 5 NPO 50V C767 015 24100 08 CAP CER 0805 1N 10 X7R 50V C318 015 23100 01 CAP CER 0805 100P 5 NPO 50V C769 015 24100 08 CAP CER 0805 1N 10 X7R 50V C320 015 24100 08 CAP CER 0805 1N 10 X7R 50V C770 014 08220 01 L CAP TANT 22UF10V276MSER C324 015 24100 08 CAP CER 0805 1N 10 X7R 50V C772 014 08220 01 L CAP TANT 22UF10V276MSER C330A 015 25100 08 CAP CER 0805 10N 10 X7R 50V C774 022 06330 05 CAP METAL PPS 330N 10 63V 5MM C330B 020 08100 04 CAP ELE RA 10M 16V 4X7MM C776 015 25150 08 CAP CER 0805 15N 10 X7R 50V 23 07 99 Copyright TEL IPN 220 01390 03
234. P CER 1206 100N 10 X7R 50V C610B 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C213 025 08100 02 CAP TANT BEAD 10M 10 16V C611A 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM C215 014 08220 01 L CAP TANT 22UF10V276MSER C611B 015 25100 08 CAP CER 0805 10N 10 X7R 50V C217 015 24220 08 CAP CER 0805 2N2 10 X7R 50V C623 015 24100 08 CAP CER 0805 1N 10 X7R 50V C219 015 24100 08 CAP CER 0805 1N 10 X7R 50V C625 020 09470 07 CAPEL470M16V20 V 8 20 3 5L ESR C221 014 08220 01 L CAP TANT 22UF10V276MSER C626 015 24470 08 CAP CER 0805 4N7 10 X7R 50V C223 015 06100 08 CAP CER 1206 100N 10 X7R 50V C628 015 24100 08 CAP CER 0805 1N 10 X7R 50V C225 015 06100 08 CAP CER 1206 100N 10 X7R 50V C630 015 06100 08 CAP CER 1206 100N 10 X7R 50V C227 015 06100 08 CAP CER 1206 100N 10 X7R 50V C631A 015 06100 08 CAP CER 1206 100N 10 X7R 50V C229 015 23150 01 CAP CER 0805 150P 5 NPO 50V C634 025 08100 02 CAP TANT BEAD 10M 10 16V C230 015 06100 08 CAP CER 1206 100N 10 X7R 50V C636 015 06100 08 CAP CER 1206 100N 10 X7R 50V C232 015 23150 01 CAP CER 0805 150P 5 NPO 50V C638 015 24100 08 CAP CER 0805 1N 10 X7R 50V C233 020 08470 02 CAP ELE RA 47M 16V 6X11MM C640 015 24100 08 CAP CER 0805 1N 10 X7R 50V C235 015 24100 08 CAP CER 0805 1N 10 X7R 50V C655 015 24100 08 CAP CER 0805 1N 10 X7R 50V C237 020 07100 02 CAP ELE RA 1M 50V 5X11MM C660 015 06100 08 CAP CER 1206 100N 10 X7R 50V C239 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C665 020 58100 03 CAP ELE Al RDL 10M 50V 5X11MM C241 015
235. P PNTD A1M2364 T800 LID BOTTOM PNTD A1M2364 T800 PNL FRT TX T800 SERIES II SHIELD A3M2250 F THRU MTG SCRW M3X6MM P POZ ST BZ LIM SCREW TT M3X8m PANTORX BLK SCRW T T M4X12MM P POZ BZ SCRW T T M4X20MM P POZ BZ SPACER 5MM HI 8MM ST 2 5MM HO NUT M3 COLD FORM HEX ST BZ NUT M4 NYLOC HEX NUT 8 32 UNC HEX XSTR MTG WSHR M3 FLAT 7MMX0 6MM ST BZ WSHR M3 S PROOF INT BZ WSHR M4 FLAT ST BZ A4M1957 GASKET SIL INSUL TO 5 TO 39 Under Q370 GASKET SIL TO 220 CLIP MTG GROMMET LED MTG 3MM LABEL 104X37MM LABEL WHITE VINYL 15X11MM S A LABEL WHITE S A 28X11MM LABEL TX RX EX TYPE APR SER NO BAG PLASTIC 75X100MM SLEEVING 2MM SIL RUBBER CRT T800 SERIES II CRTN 10 T800 KIWI 423X410X360 30 04 98 Copyright TEL M830 00 T836 PCB Information C6 2 9 replace A4 pages C6 2 9 C6 2 10 with A3 pages C6 2 9 C6 2 10 Copyright TEL 30 04 98 C6 2 10 T836 PCB Information M830 00 replace A4 pages C6 2 9 C6 2 10 with A3 pages C6 2 9 C6 2 10 30 04 98 Copyright TEL IPN 220 01395 02 M830 00 T836 PCB Information C6 2 11 T836 Grid Reference Index IPN 220 01395 02 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the componen
236. PN 036 14150 10 to 3904 IPN 036 13390 10 Changed from 4k7 IPN 036 14470 10 to 3904 IPN 036 13390 10 Changed from 56k IPN 036 15560 10 to 6k8 IPN 036 14680 10 100k thermistor assembly replaced with 10k item values of associated compo nents changed accordingly 710394 411 447 Changed from 3k9 IPN 036 14390 00 to 5604 IPN 036 13560 00 Changed from 100k NTC IPN 045 06100 05 to 10k NTC IPN 045 05100 02 Changed from 3904 IPN 036 13390 10 to 1004 IPN 036 13100 10 Changed from 100k NTC IPN 045 06100 05 to 10k NTC IPN 045 05100 02 Changed from 47k IPN 036 15470 10 to 4k7 IPN 036 14470 10 Changed from 1k5 IPN 036 14150 10 to 3904 IPN 036 13390 10 Changed from 4k7 IPN 036 14470 10 to 3904 IPN 036 13390 10 Changed from 56k IPN 036 15560 10 to 6k8 IPN 036 14680 10 Cooling fan some T839 PAs may be fitted with a different fan IPN 258 00010 06 If so a 100uH inductor IPN 056 00021 02 may be fitted in series in the fan power feed wire with a 10uF capacitor IPN 025 08100 03 fitted in parallel with this inductor 710977 The two M3x8 Torx screws which secure the module into the rack frame have been replaced by M3x8 Pozidriv screws IPN 349 00020 55 750101 2 3 5 6 Copyright TEL 23 07 99 IPN 220 01404 03 D5 3 4 T839 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description c222 015 24470 08 CAP CER
237. Q350 1 E8 3 K6 R249 1 D4 2 F3 IC240 1 04 2 F3 L910 1 P8 9 E5 Q355 1 E8 3 M6 R251 1 04 2 G4 IC250 1 03 2 E1 L920 1 P7 9 F5 Q360 1 E8 3 P6 R253 1 06 2 J2 IC260 1 08 2 Q2 L930 1 P7 9 G5 Q365 1 F5 3 K2 R254 1 C6 2 K3 IC260 1 08 2 FO L940 1 P6 9 H5 Q370 1 E5 3 N3 R255 1 07 2 K2 IC260 1 08 2 Q3 L950 2 P7 9 G4 Q415 2 J8 4 E4 R256 1 08 2 M3 IC260 1 08 2 N3 Q425 2 K8 4 H4 R257 1 08 2 N5 IC260 1 08 2 NO P100 1 06 1 R8 Q510 1 J5 5 D1 R258 1 08 2 N4 IC330 1 F8 3 K8 P150 1 P2 1 04 Q520 1 J5 5 H2 R259 1 05 2 P4 IC330 1 F8 3 LO P160 1 P2 1 04 Q530 1 J5 5 HO R260 1 D8 2 N4 IC330 1 F8 3 D6 P170 1 P2 1 Q3 Q540 1 K5 5 L2 R262 1 D8 2 N3 IC610 1 M5 6 G8 P204 1 D1 2 A8 Q550 1 K5 5 LO R263 1 C8 2 P3 IC630 1 N5 6 K5 P208 1 D1 2 A8 Q610 1 L6 6 E8 amp R264 1 C8 2 P3 IC640 1 M5 6 F1 P210 1 D6 2 A7 Q620 1 N6 6 P8 amp R265 1 C8 2 P3 IC640 1 M5 6 N6 P211 1 D5 2 A7 Q630 1 M6 6 P5 amp R266 1 C8 2 P3 IC640 1 M5 6 Q6 P212 1 D6 2 A6 Q660 1 15 6 N1 R267 1 C8 2 R2 IC650 1 15 6 F4 P215 1 04 2 A2 Q670 1 L6 6 Q2 R268 1 D2 2 C0 C700 1 K3 7 A8 P217 1 D4 2 A2 Q710 1 33 7 K8 R269 1 02 2 C1 IC710 1 J2 7 E8 P219 1 D2 2 A1 Q720 1 33 7 K8 R270 1 02 2 D1 IC710 1 J2 7 GO P225 1 D2 2 A0 Q730 1 H3 7 N8 R271 1 03 2 E1 IC710 1 J2 7 D6 P230 1 05 2 BO Q740 1 H3 7 N8 R272 1 04 2 F2 IC710 1 J2 7 D7 P231 1 08 2 BO Q750 1 G4 7 F3 R273 1 B5 2 G2 IC710 1 J2 7 D6 P233 1 01 2 R9 Q760 1 H3 7 H3 R274 1 04 2 G1 IC710 1 J2 7 C6 P235 1 01 2 R9 Q770 1 H3 7 H1 R275 1 04 2 HO IC710 1 J2 7 C6 P237 1 B7 2 R8 Q775 1 H3
238. Q860 base associated circuitry Regulators OK Check microcontroller section Copyright TEL 23 07 99 C5 12 T836 837 Fault Finding M830 00 5 7 3 Synthesiser Refer to the synthesiser circuit diagram sheet 7 in Section 6 and the VCO circuit dia gram in Part E A B No VCO RF output VCO out of lock 9V present at VCO 04 05 DC V present at Q4 8 Q5 8 3V present a 2 at VCO synth Check biasing DOY presenta resistors Q1 VCO Q1 Q2 amp Q3 POS DC V present de Check biasing on Q795 emitter resistors 8 Q795 Y Replace if faulty Does VCO trimmer adjust for stable Y control line between 5 8 13V Replace VCO Y N Recheck VCO freq correct programming UN via PGM800Win Y Does VCO trimmer adjust for required frequency range between 5 8 13V Check Tx reg Q610 8 9V reg 5V present at IC700 IC710 IC740 IC720 8 107307 Check 5V reg 8 supply resistor to each IC 20V inverter supply faulty Check 9V supply Check biasing resistors Q4 8 Q5 20V present on 1C750 pin 8 9V present on Q795 divider buffer Capacitors OK Check for cracks shorts etc VCO trimmer freq range OK Check VCO tuning caps 4 trimmer Y Is 8MHz VCO range achieved between Svnthesiser OK 5 8 13V Check
239. R225 036 17100 00 RES M F 0805 1M 5 R323 036 16220 00 RES M F 0805 220K 5 R226 036 15100 00 RES M F 0805 10K 5 R324 036 14220 00 RES M F 0805 2K2 5 R227 036 14220 00 RES M F 0805 2K2 5 R325 036 14100 00 RES M F 0805 1K 5 R229 036 16470 00 RES M F 0805 470K 5 R326 036 12220 00 RES M F 0805 22E 5 R230 036 16100 00 RES M F 0805 100K 5 R327 036 14100 00 RES M F 0805 1K 5 R231 036 15100 00 RES M F 0805 10K 5 R328 036 13470 00 RES M F 0805 470E 5 R232 036 16330 00 RES M F 0805 330K 5 R332 036 15220 00 RES M F 0805 22K 5 R233 036 16100 00 RES M F 0805 100K 5 R334 036 15100 00 RES M F 0805 10K 5 R235 036 14470 00 RES M F 0805 4K7 5 R336 036 14100 00 RES M F 0805 1K 5 R237 036 15470 00 RES M F 0805 47K 5 R338 036 14100 00 RES M F 0805 1K 5 R238 036 15470 00 RES M F 0805 47K 5 R340 036 16100 00 RES M F 0805 100K 5 R239 036 14150 00 RES M F 0805 1K5 5 R342 036 15150 00 RES M F 0805 15K 5 R241 036 14470 00 RES M F 0805 4K7 5 R344 036 15470 00 RES M F 0805 47K 5 R242 036 14220 00 RES M F 0805 2K2 5 R346 036 16120 00 RES M F 0805 120K 5 R244 036 15100 00 RES M F 0805 10K 5 R347 036 14470 00 RES M F 0805 4K7 5 R245 036 16100 00 RES M F 0805 100K 5 R348 036 15100 00 RES M F 0805 10K 5 R247 036 15100 00 RES M F 0805 10K 5 R349 036 15150 00 RES M F 0805 15K 5 R248 036 16100 00 RES M F 0805 100K 5 R350 036 14100 00 RES M F 0805 1K 5 R249 036 16100 00 RES M F 0805 100K 5 R351 036 15150 00 RES M F 0805 15K 5 R251 036 1610
240. R229 036 15560 10 RES MF 0805 CHIP 56K 1 R121 036 15150 00 RES M F 0805 15K 5 R230 036 02100 02 RES 10E 1206 200V 250MW RCO1 R122 036 14390 00 RES M F 0805 3K9 5 R231 030 03120 00 RES FILM 120E 5 0 25W 7X2 5 R123 036 14100 00 RES M F 0805 1K 5 R232 036 02100 02 RES 10E 1206 200V 250MW RCO1 R124 036 16100 00 RES M F 0805 100K 5 R237 045 04470 00 RES NTC SMD 4K7 5 20MW R125 036 15100 00 RES M F 0805 10K 5 R126 036 14100 00 RES M F 0805 1K 5 RV101 042 04500 05 RES PRESET SMD 5K CER 4MM SQ R127 036 15100 00 RES M F 0805 10K 5 RV103 042 05500 05 RES PRESET SMD 50K CER 4MM SQ R128 036 15220 00 RES M F 0805 22K 5 RV105 042 04500 05 RES PRESET SMD 5K CER 4MM SQ R129 036 17100 00 RES M F 0805 1M 5 RV107 042 05500 05 RES PRESET SMD 50K CER 4MM SQ R130 036 14220 00 RES M F 0805 2K2 5 RV109 044 04200 03 RES PRE 2K 10 TURN PNL MTG R131 036 16180 00 RES M F 0805 180K 5 RV113 042 06500 05 RES PRESET SMD 500K CER 4MM SQ R132 036 14100 00 RES M F 0805 1K 5 RV115 042 04220 05 RES PRESET SMD 2K CER 4MM SQ R133 036 15100 00 RES M F 0805 10K 5 R134 036 13470 00 RES M F 0805 470E 5 SK101 240 10000 05 CONN SMD SKT 8W 2R M MATCH R135 036 13680 00 RES M F 0805 680E 5 SK103 240 10000 05 CONN SMD SKT 8W 2R M MATCH R136 036 15100 00 RES M F 0805 10K 5 SK201 240 02100 44 SKT COAX MINI JACK PCB MT ANG R137 036 13470 00 RES M F 0805 470E 5 R138 036 15100 00 RES M F 0805 10K 5 R141 036 15100 00 RES M F 0805 10K 5 R142 036 15100 00 RES M F 0805 10K 5 R143 036
241. R760 1 H3 7 K4 RV310 1 F7 3 B7 R302 1 F8 3 A8 R502 1 K6 5 K9 R762 1 H3 7 K4 RV320 1 E7 3 G9 R303 1 F8 3 B8 R505 1 K6 5 L8 R763 1 H4 7 L4 RV330 1 F7 3 G8 R304 1 F7 3 09 R510 1 K6 5 17 R765 1 H3 7 H2 RV805 1 N4 8 F1 R307 1 F8 3 D7 R515 1 H6 5 J5 R766 1 G3 7 J3 R308 1 F8 3 E7 R520 1 J5 5 C1 R767 1 H3 7 K2 SK205 1 B5 2 A5 R309 1 F8 3 F7 R525 1 35 5 D1 R769 1 H3 7 L3 SK310 1 E7 3 R3 R310 1 F8 3 F7 R530 1 J5 5 DO R771 1 H4 7 M3 SK420 1 H8 4 A4 R311 1 E8 3 G9 R535 1 35 5 E1 R772 1 G4 7 M2 SK501 1 G6 5 D6 R312 1 E7 3 G8 R540 1 K5 5 H2 R774 1 H4 7 M2 SK502 1 G6 5 D5 R313 1 E8 3 G9 R545 1 K5 5 J1 R775 1 H4 7 N2 SK503 1 G6 5 D4 R314 1 E8 3 H8 R550 1 K5 5 K2 R777 1 H4 7 R3 SK504 1 G5 5 D3 R315 1 E8 3 H9 R555 1 K5 5 K1 R784 1 G3 7 P1 SK505 1 G5 5 D2 R316 1 E8 3 H8 R560 1 K5 5 MO R785 1 63 7 Q1 SK513 1 H5 5 H3 R317 1 E8 3 H7 R609 1 L6 6 B8 R786 1 G2 7 Q1 SK522 1 H6 5 K5 R318 1 E8 3 J8 R613 1 L6 6 C8 R787 1 62 7 R2 SK531 1 K6 5 N6 R320 1 E8 3 J9 R615 1 M5 6 F9 R790 1 G3 7 PO SK532 1 K5 5 N5 R321 1 E8 3 J9 R617 1 M5 6 J8 R791 1 G3 7 Q0 SK533 1 K5 5 N4 R322 1 E8 3 J8 R619 1 M6 6 L8 R792 1 63 7 QO SK534 1 K5 5 N3 R323 1 E9 3 L8 R621 1 M6 6 L8 R801 1 M2 8 D7 SK535 1 K5 5 N2 R324 1 E9 3 18 R625 1 N6 6 L7 R802 1 M2 8 D7 SK710 1 K3 7 A7 R325 1 F8 3 M8 R629 1 M5 6 P6 R808 1 12 8 B4 SK805 1 K3 8 Q9 R326 1 F8 3 N8 R633 1 M5 6 Q8 R809 1 L2 8 D5 SK805 1 K3 8 Q7 R327 1 F8 3 N7 R637 1 N5 6 K6 R810 1 L2 8 D6 SK805 1 K3 8 Q5 R328 1 F8 3 P7 R641 1 N5 6 L4 R811 1 L2 8 E6 SK805 1 K3
242. RES M F 0805 15K 5 R343 036 15470 00 RES M F 0805 47K 5 R211 036 15390 00 RES M F 0805 39K 5 R345 036 15470 00 RES M F 0805 47K 5 R213 036 14270 00 RES M F 0805 2K7 5 8R347 10 036 15100 00 RES M F 0805 10K 5 R215 036 15150 00 RES M F 0805 15K 5 8R347 13 036 15100 00 RES M F 0805 10K 5 R218 036 14390 00 RES M F 0805 3K9 5 8R347 15 036 14820 00 RES M F 0805 8K2 5 8R219 10 036 14820 00 RES M F 0805 8K2 5 8R347 20 036 15100 00 RES M F 0805 10K 5 amp R219 13 036 14820 00 RES M F 0805 8K2 5 8R347 23 036 15100 00 RES M F 0805 10K 5 8R219 15 036 14390 00 RES M F 0805 3K9 5 8R347 25 036 14820 00 RES M F 0805 8K2 5 8R219 20 036 14820 00 RES M F 0805 8K2 5 R349 036 15100 00 RES M F 0805 10K 5 8R219 23 036 14820 00 RES M F 0805 8K2 5 R351 045 03500 01 RES NTC 500E 5MM DISC UNCOATED 8R219 25 036 14390 00 RES M F 0805 3K9 5 R353 036 13220 00 RES M F 0805 220E 5 R221 036 15470 00 RES M F 0805 47K 5 R355 036 15100 00 RES M F 0805 10K 5 R222 036 16100 00 RES M F 0805 100K 5 R357 036 14150 00 RES M F 0805 1K5 5 R223 036 12100 00 RES M F 0805 10E 5 R359 036 16330 00 RES M F 0805 330K 5 R224 036 14390 00 RES M F 0805 3K9 5 R361 036 17100 00 RES M F 0805 1M 5 R225 036 13470 00 RES M F 0805 470E 5 R363 036 12100 00 RES M F 0805 10E 5 R227 036 14100 00 RES M F 0805 1K 5 R365 036 14330 00 RES M F 0805 3K3 5 R229 036 14470 00 RES M F 0805 4K7 5 R367 036 14100 00 RES M F 0805 1K 5 R230 036 14470 00 RES M F 0805 4K7 5 R369 036 15150 00 RES M F 080
243. RV220 1 A4 2 M6 R759 1 H3 7 J4 RV805 1 N4 8 F1 R760 1 H3 7 K4 R762 1 H3 7 K4 SK205 1 B5 2 A5 R763 1 H4 7 L4 SK310 1 E7 3 R3 R765 1 H3 7 H2 SK420 1 M8 1 M8 R766 1 63 7 33 SK501 1 G6 5 D6 R767 1 H3 7 K2 SK502 1 G6 5 D5 R769 1 H3 7 13 SK503 1 G6 5 04 R771 1 H4 7 M3 SK504 1 65 5 D3 R772 1 G4 7 M2 SK505 1 65 5 D2 R774 1 H4 7 M2 SK513 1 H5 5 H3 R775 1 H4 7 N2 SK522 1 H6 5 K5 R777 1 H4 7 R3 SK531 1 K6 5 N6 R784 1 G3 7 P1 SK532 1 K5 5 N5 Copyright TEL 30 04 98 C6 3 14 T837 PCB Information M830 00 30 04 98 Copyright TEL IPN 220 01390 03 M830 00 T837 PCB Information C6 3 27 1837 Parts List IPN 220 01390 03 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The miscellaneous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend column indicates their position in
244. RV230 clock wise until the mute just opens 3 10 Carrier Level Mute Connect pins 2 amp 3 of PL250 to enable the carrier mute and disable the noise mute Apply an on channel signal from the RF generator at the required mute opening level with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV235 carrier mute anticlockwise to close the mute if necessary momen tarily turn off the RF then slowly adjust it clockwise until the mute just opens The mute should now open at this preset level 23 07 99 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3 13 3 11 Audio Processor 3 11 1 Line Amplifier Output Apply an on channel signal from the RF generator at a level of 70dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV210 front panel line level to give an output of 10dBm on the 600 ohm line Check for any clipping or distortion on the oscilloscope Set the line level to the required output level 3 11 2 _ Monitor Amplifier Output Speaker Output Adjust RV205 front panel monitor volume to give an output of 2V rms into a 4 ohm resistive load Check for anv clipping or distortion on the oscilloscope Switch to a 4 ohm speaker and adjust RV205 to the required level 3 12 CTCSS 3 12 1 Decoder Operation Program a CTCSS tone on the default channel using PGM800Win Set the RF signal generator output to 70dBm Modulate the generator with both e a1kHz tone at 3kHz deviation
245. System 30 04 98 Copyright TEL M830 00 T835 Link Selectable Features G1 1 1 1835 Link Selectable Features 1 1 Flat Or De emphasised Response The links of PL210 and PL220 mav be set to give either a flat or de emphasised audio frequencv response refer to Section 1 7 for further details 1 2 Mute Relav Control A relav with undedicated contacts RL210 is available in the audio processor circuit block for various switching applications A link PL270 is available for control of the relav from the mute circuit refer to Section 1 7 This makes the relav suitable for con trolling the keving of a transmitter in repeater applications 1 3 Mute Selection Link PL250 mav be set to operate with noise mute or carrier mute refer to Section 1 7 1 4 Receiver Disable The receiver audio can be disabled bv pulling the RX DISABLE line low When the cir cuit is pulled from low to high the receiver audio cannot be re enabled until the disable timer completes its operation This time is variable from 15ms to 200ms bv adjusting RV220 in the audio processor section If required the operation of this circuit can be disabled bv changing the link of PL260 from l 2 to 2 3 Tvpical applications of the receiver disable are as an extra mute for signalling purposes or when the T835 is configured as a line controlled base station refer to Section 4 1 5 CTCSS Configuration Links PL230 amp PL240 select various CTCSS options r
246. T800 bottom lid replaced by 312 01053 02 The two M3x8 Torx screws which secure the module into the rack frame have been replaced by M3x8 Pozidriv screws IPN 349 00020 55 750101 2 3 5 6 Copyright TEL 23 07 99 IPN 220 01395 02 C6 2 4 T836 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description 0353 015 24100 08 GAP CER 0805 1N 10 X7R 50V Note D205 and D210 are optional level limiting diodes for 356 015 23150 01 CAP CER 0805 150P 5 NPO 50V solar 0359 015 24100 08 GAP CER 0805 1N 10 X7R 50V special applications C362 015 24100 08 CAP CER 0805 1N 10 X7R 50V 0365 015 22330 01 GAP CER 0805 33P 5 NPO 50V z s angi 0368 015 22820 01 CAP CER 0805 82P 5 NPO 50V R705 47 ohm and SK710 are fitted in place of c370 015 24100 08 GAP CER 0805 1N 10 X7R 50V 1C700 when an external frequency reference is used C373 022 55470 10 CAP MYLAR Al 47N 5 63V POTTED These two components are supplied with the auxiliary 692 io ed ROW D range kits T800 06 0000 8 T800 06 0001 C382 015 22470 01 CAP CER 0805 47P 5 NPO 50V 0385 020 07470 04 GAP ELE RA 4M7 25V 20 8X13 SOL 0388 015 24100 08 GAP CER 0805 1N 10 X7R 50V kat TA A 0391 015 21820 01 GAP CER 0805 8P2 1 4P NPO 50V C202 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C394 015 04100 047 CAP CER 1206 TATO XTRA AOV C204 020 07470 92 CAP Bl P RA 4M7 50V 6X11 5 LS C396 01904100 04 CAR CER 1208 10 103 xr SOM C205 020
247. T839 20 148 174MHz 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 9 4 4 3 Power Control Approximate voltages 174MHz under normal operating conditions Forward amp Reverse Power Output Power Measurement 50W 100W forward power at IC103 pin 1 forward power at C261 reverse power at IC103 pin 8 reverse power at C294 Caution The following voltage checks are all done with RV115 driver power clamp set to maximum When these tests are finished reset RV115 to 60W T838 or 120W T389 RF Power Level Control Check Check 12V DC present Using RV109 does output power _N gt ee ee ae arange from directional coupler Check IC103 pins 1 amp 8 T839 20 120W Y Low Forward Power Alarm Check Using RV109 does low forward N Check Q117 amp Q121 power alarm LED light when Check IC103 pin 14 gt 12V DC output power reduced to when forward power low T838 40W T839 80W Y High Reverse Power Alarm Check N Check Q129 amp Q131 Does high reverse power alarm Check IC103 pin 7 gt 12V DC LED light when PA operated into when reverse power high a mismatch of 3 1 or worse Y Over Temperature Shutdown Check Earth IC101 pin 9 A Check IC103 pin 13 is at 0 6V At high operating temperatures N Check IG103 bin 14 goes from does the output po
248. TCSS Microcontroller Test Standards Product Codes 1836 Standard Product Range T837 Standard Product Range T836 Main Circuit Block Identification T836 Front Panel Controls T837 Main Circuit Block Identification T837 Front Panel Controls Copyright TEL 30 04 98 C1 2 T836 837 General Information M830 00 30 04 98 Copyright TEL M830 00 T836 837 General Information C1 3 replace A4 pages C1 3 C1 4 with A3 pages C1 3 C1 4 Copyright TEL 30 04 98 C1 4 T836 837 General Information M830 00 replace A4 pages C1 3 C1 4 with A3 pages C1 3 C1 4 30 04 98 Copyright TEL M830 00 T836 837 General Information C1 5 replace A4 pages C1 5 C1 6 with A3 pages C1 5 C1 6 Copyright TEL 30 04 98 C1 6 T836 837 General Information M830 00 replace A4 pages C1 5 C1 6 with A3 pages C1 5 C1 6 30 04 98 Copyright TEL M830 00 T836 837 General Information C1 7 1 1 Introduction The T836 is a svnthesised microprocessor controlled FM base station transmitter designed for single or multichannel operation in the 136 to 174MHz frequency range with a standard power output of 25W The RF section of the transmitter comprises a fre quency synthesiser which provides 170mW of frequency modulated RE drive to a two stage wide band output driver followed by a 25W power amplifier A thermal shut down feature is provided in the T836 in case operating temperatures exceed acceptable l
249. TEL M830 00 T838 839 General Information D1 5 1 1 Introduction The T838 amp T839 are FM base station power amplifiers designed for single or multichan nel operation in the 136 to 174MHz frequency range The typical output power capabil ities are as follows T838 10 to 60W T839 20 to 120W The T838 PA comprises a single broad band RF power module whose output is filtered before being fed to the output socket The T839 PA comprises two broad band RF power modules whose outputs are recom bined using a quadrature hybrid combiner and filtered before being fed to the output socket This dual module design enables the transmitter to produce at least one quarter of its rated power if one of the modules fails VSWR and thermal protection is incorporated into the basic design while monitoring and alarm signals are available for both forward and reverse power The output power is adjustable from the front panel The main PCB is mounted directly on a die cast chassis heatsink Extensive use is made of the latest surface mount technology Effective RF isolation between the PA con trol circuitry and RF stages is achieved by internal metal shields Forced air cooling for the heatsink is provided on the T839 by a fan which is activated whenever the transmitter is keyed Thermal sensors will also activate the fan automati cally if the internal temperature reaches an unacceptable level The T838 has a width of 60mm and occupies a sin
250. Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V on the middle channel If there is no middle channel tune CV1 so that the chan nels are symmetrically placed around a loop voltage of 9V All channels should lie within the upper and lower limits of 13V and 5V respectively Do not attempt to program channels with a greater fre quency separation than the specified switching range of 3MHz The TCXO IC700 output frequency should be trimmed when the IF is tuned refer to Section 3 7 3 7 Note 1 Note 2 Alignment Of Receiver Front End And IF In this and following sections deviation settings are given first for wide bandwidth sets followed bv settings in brackets for mid bandwidth sets and narrow bandwidth sets Frequency Range 136 156MHz 148 174MHz VCO Check that links SL405 to SL440 and link B in the front end are bridged with solder Check that link A is bridged with solder and links SL405 to SL440 and link B are not connected The correct VCO is fitted at the factory If you change the operating frequency range of the receiver make sure you also fit the correct VCO for that frequency range Align the synthesiser as instructed in Section 3 6 For multichannel operation align the receiver on a frequency in the middle of the required band Set RV230 front panel gating sensitivity fully clockwise Inject a strong on chan
251. Tx Enable 8 Rx Disable On Tx Reg ogee pg Rx Disable Time No Tx or Rx Tail Time Figure 4 4 Receiver Disable Time vs Tail Time if the system configuration also uses an aerial changeover relay as well as the tail timer the changeover relay must be driven from the relay driver Q250 in the audio processor rather than by Tx key or Tx enable this output is available on pin 9 of the T800 03 000 auxiliary D range D range 2 depending on tail time requirements it is possible for the transmitter tail time to exceed the receiver disable time capability in this situation the receiver disable line should also be driven from relay driver Q250 D range 2 pin 9 30 04 98 Copyright TEL M830 00 DC Line Keying G5 1 5 DC Line Keving Where the transmitter and receiver are separated by only a short distance and DC isola tion is not required DC loop keying may be employed A small DC current usually less than 10mA can be fed via the balanced 2 wire line to provide remote control of various functions In a duplex system the receiver mute is used to key a transmitter provided there is a common earth between the two units refer to Figure 5 1 Receiver Transmitter Audio T210 Pin 1 PL100 Short Line Pin 4 PL100 T210 Out O 1 8 1 8 2 7 0 Pin 2 Pin 3 9 2 Ed E Pin 3 Pin 2 O 4 5 T 5 Q266 C268 Pin 4 Pin 1 Q Q V RL210 7 Pin 13 oe REY o jet Aka Keying Logic Q270
252. Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C187 1 D3 1 K1 D113 1 F7 1 Q2 PL101 1 L3 1 02 Note C188 1 02 1 11 D201 11 6 2 Q3 Q101 1 08 d C9 C189 1 C3 1 M1 D202 1 D4 2 18 Q103 1 B3 1 E8 This grid reference index C190 ECS 1 N1 D202 1 D4 2 18 Q105 1 04 1 D7 covers both the T838 and 5192 1 B2 1 N1 D203 1 E6 2 R2 Q107 1 B5 1 F8 T839 and is reproduced in Giss te rot RARE oa Zea both PCB Information sec S201 1 37 215 IC101 1 D4 1 B8 Q113 1 A3 1 K6 tions for your convenience C202 1 43 _ 2 B8 IC101 1 D4 1 C0 Q115 1 A3 1 17 C203 1 7 2 01 IC101 1 D4 1 NO Q117 1 84 1 K8 C101 1E4 1 B8 C204 1 M6 2 E1 IC103 1 04 1 D4 Q119 1 84 1 L6 C103 1 E4 1 B9 C205 1 L7 2 15 IC103 1 04 1 J8 Q121 1 83 1 L8 C105 1 83 1 D8 C206 1 P6 2 C1 IC103 1 C4 1 FO Q123 1 63 _ 1 E7 C107 1B3 1 D9 C207 1 K7 2 K5 IC103 1 04 1 J5 Q125 1E3 1 F7 C109 1 83 1 D8 C208 1 48 _ 2 08 IC103 1 04 1 E3 Q127 1 D3 _ 1 67 C111 1 C4 1 D8 C209 1 05 2 D8 IC105 1 03 1 MO Q129 1 84 1 14 C113 1 85 1 F8 C210 1 C5 2 E8 IC105 1 03 1 PO Q131 1 83 _ 1 M5 C115 1 85
253. V70 D SW SOT23 this design are common to both products there are a a dac S PODE BR 5 E MR750 lt 45 S DIODE SCHTTKY 18897 2 number of components that are placed in only one prod page 001 10000 70 S DIODE SMD BAV70 D SW SOT23 uct D203 001 00013 45 S DIODE SCHTTKY 18897 2 NOE C101 002 10003 24 S IC SMD 324 4X O AMP SO14 Because the circuit diagrams for this design cover both 1c103 002 10003 24 S IC SMD 324 4X O AMP SO14 products we have indicated on the diagrams those 0105 002 10003 58 S IC SMD LM358 DUAL O AMP i l C107 002 10003 17 S IC LM317L REG S0 8 100MA components which are placed only in the T838 by c109 002 10003 17 S IC LM317L REG S0 8 100MA enclosing them in a labelled box The circuit reference 12 10 004 00687 02 MODULE M68702L 135 160MHZ 60W f M IC201 20 004 00687 03 MODULE M68702H 150 174MHZ 60W for each of these components is also prefixed with the 20094 002 10006 62 S IC SMD LMC662CM 2X O AMP x character L101 065 10004 20 BEAD FE SMD CBD 4 6 3 3 482 m A hig of L103 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 The character is used in this parts list to indicate L105 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 components used only in the T838 L201 056 10330 02 L IND SMD 330NH L203 065 10004 20 BEAD FE SMD CBD 4 6 3 3 4S2 L206 056 14150 02 L IND SMD 1 5UH 0129 015 23680 08 CAP CER 0805 680P 10 X7R 50V meee 05814190 NO SMD 1 SUH 1
254. VCO 240 00025 36 PLUG 32WAV 1ROW PC MTG HARWIN 345 00040 10 SCRW M3X6MM P POZ ST BZ 345 00060 08 SCRW M5 X 16 CH SLOT PLASTIC 350 00016 42 SPACER 5MM HI 8MM ST 2 5MM HO 352 00010 14 NUT M5 HEX PLASTIC T800 TOROID 353 00010 10 WSHR M3 FLAT 7MMXO 6MM ST BZ 353 00010 13 WSHR M3 S PROOF INT BZ 353 00010 41 WSHR M6 NYLON BULTE LOCK Copyright TEL 30 04 98 IPN 220 01176 03 E2 6 T830 VCO PCB Information M830 00 T830 VCO Grid Reference Index IPN 220 01176 03 How To Use This Grid Reference Index The first digit in the PCB layout reference is a 1 or 2 indicating the top or bottom side layout respectively and the last two charac ters give the location of the component on that diagram The first digit in the circuit diagram reference is the sheet number and the last two characters give the location of the component on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C2 1 B7 1 B3 R8 1 D4 1 G3 C3 1 C6 1 D4 R9 1 D3 1 G4 HC 4 1 06 1 D4 R10 1 04 1 G4 C5 1 D6 1 D3 R11 1 03 1 G5 C6 1 05 1 E4 R12 1 04 1 G5 C7 1 D5 1 E3 R13 1 B3 1 G6 C8 1 D6 1 F3 R14 1 07 1 F5 C9 1 D4 1 H3 R15 1 D8 1 G6 C10 1 04 1 F3 R16 1 B4 1 H4 C11 1 04 1 G4 R17 1 A4 1 H4 C12 1 D8 1 F6 R18 1 B4 1 H5 C13 1 D7 1 G6 R19 1 B4 1 H6 C14 1 03 1 G5 R20 1 E2 1 J6 C15 1 04 1 H5 R21 1 B2 1 K6 C16 1 B3 1 J5 R22 1 D2 1 J7 C17 1 B3 1 J4 R23 1 D2 1 K7 C18 1 B2 1 J5 R24 1 B2 1 K5 C19 1 D1 1 J6 R25 1 03 1 K5 C20 1 D3 1 37 C21 1
255. WIRE R231 036 15100 00 RES M F 0805 10K 5 LED2 008 00014 80 S JLED 3MM GREEN WITH WIRE R232 036 16330 00 RES M F 0805 330K 5 R233 036 16100 00 RES M F 0805 100K 5 L335 056 00021 04 IND FXD 330NH AX R235 036 14470 00 RES M F 0805 4K7 5 L340 056 00021 04 IND FXD 330NH AX R237 036 15470 00 RES M F 0805 47K 5 L345 052 08135 25 COIL A W 2 5T 3 5MM HOR 0 8MM R238 036 15470 00 RES M F 0805 47K 5 L350 052 08125 15 COIL A W 1 5T 2 5MM HOR 0 8MM R239 036 14150 00 RES M F 0805 1K5 5 L355 056 00021 01 IND FXD 1 5UH AX R241 036 14470 00 RES M F 0805 4K7 5 L360 052 08135 35 COIL A W 3 5T 3 5MM HOR 0 8MM R242 036 14220 00 RES M F 0805 2K2 5 L365 052 08135 15 COIL A W 1 5T 3 5MM HOR 0 8MM R244 036 15100 00 RES M F 0805 10K 5 L370 065 00010 08 BEAD FERR 483 3X0 7X10MM RED R245 036 16100 00 RES M F 0805 100K 5 L375 065 00010 04 BEAD FERR F8 4X2X5MM R247 036 15100 00 RES M F 0805 10K 5 L380 056 00021 01 IND FXD 1 5UH AX R248 036 16100 00 RES M F 0805 100K 5 L385 052 08145 35 COIL A W 3 5 4 5MM HOR 0 8MM R249 036 16100 00 RES M F 0805 100K 5 L390 056 00021 04 IND FXD 330NH AX R251 036 16100 00 RES M F 0805 100K 5 L750 056 10068 00 IND FXD SMD 68NH 3 2 2 5 1 6 R253 036 16100 00 RES M F 0805 100K 5 L910 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM R254 036 16100 00 RES M F 0805 100K 5 L920 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM R255 036 15100 00 RES M F 0805 10K 5 R256 036 15470 00 RES M F 0805 47K 5 PL100 070 01001 00 D RANGE 15 WAY COMPL T800 R257 036 1633
256. X7R 50V 541003 3 0735 015 22470 01 GAP CER 0805 47P 5 NPO 50V 0349 015 24100 08 GAP CER 0805 1N 10 X7R 50V c GE SRO of fa EEA AT NEW 0350 015 24100 08 CAP CER N 10 X7R 50V 20470 e ee EEO G740A 015 24100 08 GAP CER 0805 1N 10 X7R 50V 30 04 98 Copyright TEL IPN 220 01395 02 M830 00 T836 PCB Information C6 2 5 Ref Var IPN Description Ref Var IPN Description C740B 015 25100 08 CAP CER 0805 10N 10 X7R 50V L355 056 00021 01 IND FXD 1 5UH AX C741A 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM L360 052 08140 35 COIL A W 3 5T 4 0MM HOR 0 8MM C741B 015 25100 08 CAP CER 0805 10N 10 X7R 50V L365 052 08130 15 COIL A W 1 5T 3 0MM HOR 0 8MM C742A 015 06100 08 CAP CER 1206 100N 10 X7R 50V L370 065 00010 08 BEAD FERR 483 3 0 7 10MM RED C742B 015 25100 08 CAP CER 0805 10N 10 X7R 50V L375 065 00010 04 BEAD FERR F8 4X2X5MM C743 015 22470 01 CAP CER 0805 47P 5 NPO 50V L380 056 00021 01 IND FXD 1 5UH AX C745 015 24100 08 CAP CER 0805 1N 10 X7R 50V L385 052 08145 35 COIL A W 3 5 4 5MM HOR 0 8MM C750 025 08100 03 CAP 10M 35V 20 TANT 5MM L S L400 052 08135 15 COIL A W 1 5T 3 5MM HOR 0 8MM C757 015 25100 08 CAP CER 0805 10N 10 X7R 50V L410 065 00010 04 BEAD FERR F8 4X2X5MM C759 015 25100 08 CAP CER 0805 10N 10 X7R 50V L415 065 00010 04 BEAD FERR F8 4X2X5MM C761 015 25100 08 CAP CER 0805 10N 10 X7R 50V L420 065 00010 08 BEAD FERR 483 3 0 7 10MM RED C762 014 08220 01 L
257. a brief description of the part The components listed in this parts list are divided into two main types those with a circuit refer ence e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns as shown below circuit reference lists components Ref_ Var IPN Description in alphanumeric C126 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V d 6127 020 09220 01 CAP ELECT RADL 220M 16V 10X12 5MM oraer C128 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V C129 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V amp C130 10 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R 50V 30130 15 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R SOV amp C130 20 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R SOV 80130 25 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7A SOV C131 015 24100 08 CAP CER 0805 CHIP 1N 10 X7R 50V C132 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R 50V C133 015 05470 08 CAP CER 1206 CHIP 47N 10 X7R SOV variant column indicates that this is a variant component description which is fitted only to gives a brief description the product type listed of the component Internal Part Number order the component by this number The mechanical and miscellaneous section lists the variant and common parts in IPN order 30 04 98 Copyright TEL M830 00 T838 839 PCB Infor
258. abled when the transmitter is energised to prevent the receiver mute opening from RF due to lack of isolation in the relay direct radiation or the noise skirt of the dual frequency link Since the base station may be controlled via a 2 wire line and a 4 wire to 2 wire hybrid there is a possibility of system oscillation if the receiver is not disabled during transmit This occurs when the transmit energy enters the receiver and produces an audio response which can pass from the receive to the transmit audio part of the hybrid impedance imbalance etc o DC Relay Tx DC Enable T il sent l R Kev gt IX 3 0 gt RX i RF RF Logic Out Coax n Relay Rx Disable Figure 4 1 Basic Configuration jie Tx gt ob gt Rx RF Out RF In Coax Relay k Hybrid I lt Tx AF Rx AF o Microphone o Speaker o PTT Remote Control Figure 4 2 Remote Line Controlled Base Station Copyright TEL 30 04 98 G4 2 Line Controlled Base Without Talk Through M830 00 Receiver MAR l ra H Transmitter C1 RVI 1k approx 2u Hybrid Balance Al AA C2 W meat 2 Wire Line Figure 4 3 4 Wire to 2 Wire Converter 4 2 Transmitter Tail Timer If the transmitter has the tail timer enabled the receiver disable timer must be set so that Rx Dis gt Tx Tail
259. ad in the audio processor The line must be pulled low to key Copyright TEL 30 04 98 G2 4 T836 837 Optional Features M830 00 30 04 98 Copyright TEL M830 00 Talk Through Repeater G3 1 3 Talk Through Repeater In this configuration the receiver directly keys the transmitter when the signal is received The demodulated audio is fed via 600 ohm lines to the transmitter to modu late the carrier The receiver and transmitter operate simultaneously and must therefore be on different frequencies The minimum frequency separation depends on the duplexer used Antenna Receive Port Transmit Port Duplexer RF In RF Out N Socket RA N Socket Line Out Typical line level 15dBm Line In Tx Key Out Receiver Transmitter Monitor Out Monitor Local Speaker Microphone Figure 3 1 Talk Through Repeater Copyright TEL 30 04 98 G3 2 Talk Through Repeater M830 00 30 04 98 Copyright TEL M830 00 Line Controlled Base Without Talk Through G4 1 4 Line Controlled Base Without Talk Through 4 1 General This installation contains a transmitter and receiver which may or may not be on the same frequency thus simultaneous transmission and reception is not possible When the transmitter is keyed the coaxial relay is also energised When the relay is in its rest position signals from the aerial are passed to the receiver and the demodulated output is fed via 600 ohm lines to the RCU The receiver is dis
260. ailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E The following topics are covered in this section Section Introduction Microcontroller Synthesised Local Oscillator Two Point Modulation VCO VCO Supplv Audio Processor General Audio Inputs Keving Inputs Compressor Automatic Level Control ALC Outputs To Modulators Power Supply amp Regulator Circuits Transmit Timers T836 Drive Amplifier amp PA T837 Exciter Drive Amplifier Copyright TEL 30 04 98 C2 2 T836 837 Circuit Operation M830 00 2 1 T836 High Level Block Diagram 2 3 2 2 T837 High Level Block Diagram 2 3 2 3 T836 837 Microcontroller Block Diagram 2 4 2 4 T836 837 Synthesiser Block Diagram 2 5 2 5 T836 837 Two Point Modulation 2 6 2 6 T836 837 Audio Processor Block Diagram 2 8 2 7 T836 837 Power Supply amp Regulators Block Diagram 2 10 2 8 T836 837 Transmit Timers 2 11 30 04 98 Copyright TEL M830 00 T836 837 Circuit Operation C2 3 2 1 Introduction The individual circuit blocks which make up the T836 and T837 are e synthesiser e VCO e audio processor e drive amplifier e power amplifier T836 only e voltage regulators Each of these circuit blocks is set in its own shielded compartment formed as an inte gral part of the main chassis The configuration of the circuit blocks ma
261. ain Circuit Block Identification T835 Front Panel Controls Copyright TEL 23 07 99 B1 2 T835 General Information M830 00 30 04 98 Copyright TEL M830 00 T835 General Information B1 3 replace A4 pages B1 3 B1 4 with A3 pages B1 3 B1 4 Copyright TEL 30 04 98 B1 4 T835 General Information M830 00 replace A4 pages B1 3 B1 4 with A3 pages B1 3 B1 4 30 04 98 Copyright TEL M830 00 T835 General Information B1 5 1 1 Introduction The T835 is a high performance microprocessor controlled FM base station receiver designed for single or multichannel operation in the 136 to 174MHz frequency rangel The receiver is a dual conversion superhet with a synthesised local oscillator The first IF is 21 4MHz allowing exceptionally high spurious signal rejection to be achieved in the receiver front end The second IF section 455kHz combines amplitude limiting detection and RSSI within a single integrated circuit This IC also drives a noise level detector for gating the audio output RSSI can also be used to drive a carrier mute for audio output gating link selectable The audio section output can be adjusted to deliver gt 10dBm to a 600 ohm balanced output and 1W to a local monitor speaker A flat or de emphasised audio response is link selectable The synthesiser frequency is programmed via the serial communications port Eight channel select lines are accessible via an optional D range connector D rang
262. aintaining a low level unmodulated RF input to the receiver looselv cou ple into the first IF an additional high level signal at 21 4MHz you should now hear a constant low frequency beat note Tap the TCXO with a finger and replace it if the beat note permanently changes 5 5 3 2 Second IF While maintaining a low level unmodulated RF input to the receiver loosely cou ple into the second IF an additional high level signal at 455kHz you should now hear a constant low frequency beat note Adjust the frequency of the 455kHz signal for zero beat If the second IF is more than 300Hz off frequency check 1C340 X310 C345 and C347 and replace if necessary 5 5 4 Demodulator Output Apply an on channel RF signal modulated by 1kHz with 3kHz 2 4kHz 1 5kHz deviation at an amplitude of 65dBm Connect an oscilloscope probe DC coupled to IC350 pin 7 audio output Check that an audio signal of approximately 380mV peak to peak is present With the audio response set to flat optimum tuning of the quad coil L360 for mini mum audio distortion should coincide with maximum audio amplitude and a DC level of approximately 1 3V 23 07 99 Copyright TEL M830 00 T835 Fault Finding B5 7 5 9 9 IF Distortion If the audio distortion is still high after careful IF alignment Section 3 7 sweep the IF to investigate the bandpass response Note Apply an on channel RF signal modulated at 10Hz sine wave with approxi mat
263. amp R290 15 036 13680 00 RES M F 0805 680E 5 R689 036 12100 00 RES M F 0805 10E 5 amp R290 16 036 13680 00 RES M F 0805 680E 5 R693 036 16100 00 RES M F 0805 100K 5 amp R290 20 036 13560 00 RES M F 0805 560E 5 R696 036 15560 00 RES M F 0805 56K 5 amp R290 23 036 13680 00 RES M F 0805 680E 5 R701 036 12220 00 RES M F 0805 22E 5 amp R290 25 036 13560 00 RES M F 0805 560E 5 R702 036 17100 00 RES M F 0805 1M 5 amp R290 26 036 13680 00 RES M F 0805 680E 5 R703 036 17100 00 RES M F 0805 1M 5 R291 036 10000 00 RES M F 0805 ZERO OHM R706 036 15150 00 RES M F 0805 15K 5 R292 036 14470 00 RES M F 0805 4K7 5 R708 036 16100 00 RES M F 0805 100K 5 R293 036 15470 00 RES M F 0805 47K 5 R710 036 13100 00 RES M F 0805 100E 5 R294 036 14470 00 RES M F 0805 4K7 5 R711 036 13100 00 RES M F 0805 100E 5 R295 036 14270 00 RES M F 0805 2K7 5 R712 036 12100 00 RES M F 0805 10E 5 R296 036 14100 00 RES M F 0805 1K 5 R713 036 10000 00 RES M F 0805 ZERO OHM R297 036 14560 00 RES M F 0805 5K6 5 R714 036 16470 00 RES M F 0805 470K 5 R298 036 16100 00 RES M F 0805 100K 5 R715 036 14100 00 RES M F 0805 1K 5 R299 036 14270 00 RES M F 0805 2K7 5 R717 036 14270 00 RES M F 0805 2K7 5 R302 036 15220 00 RES M F 0805 22K 5 R718 036 15560 00 RES M F 0805 56K 5 R304 036 14270 00 RES M F 0805 2K7 5 R719 036 15560 00 RES M F 0805 56K 5 R306 036 15100 00 RES M F 0805 10K 5 R720 036 15390 00 RES M F 0805 39K 5 R308 036 16100 00 RES M F 0805 100K 5 R721 036 15100
264. and gate stages e Q350 Q355 Q360 IC330 pins 1 2 amp 3 power ramping e 0340 0345 Tx Reg and Lock Detect gate e 0320 0325 0330 0335 delay and PIN switch drive This is to allow the RF power circuits both exciter and PA to ramp up and down in a controlled manner so that minimal adjacent channel interference is generated during the transition The output of the wide band amplifier is approximately 500mW 27dBm for an input of 170mW 22dBm when the power control is set to maximum The zener diode D330 limits the upper range of the controlled voltage to the exciter transistors A temperature sensor R460 is provided so that the RF output power can be reduced to a preset level when a set temperature is exceeded This is a protection circuit IC330 pins 5 6 amp 7 Q305 to prevent overheating as the unit is not rated for continuous oper ation at high temperatures refer to Section 1 2 3 for duty cycle specifications RV330 sets the PA output power while under high temperature fold back conditions R359 R360 and R362 form a 6dB attenuator to provide good VCO exciter isolation The output attenuator R392 R390 R394 and R396 aids in reducing exciter PA interac tion while also ensuring a reasonable match for Q350 The RF output from the exciter is fed to the driver stage Q415 and then to the final 0425 DC is fed to the final via a low pass filter with special low frequency decou pling CV451 tunes the output matc
265. applications C338 015 25220 08 CAP CER 0805 22N 10 X7R 50V C340 015 24100 08 CAP CER 0805 1N 10 X7R 50V E C342 015 06100 08 CAP CER 1206 100N 10 X7R 50V R705 47 ohm and SK710 are fitted in place of 344 015 24100 08 CAP CER 0805 1N 10 X7R 50V 1C700 when an external frequency reference is used C346 015 24100 08 CAP CER 0805 1N 10 X7R 50V i ili C349 015 24100 08 CAP CER 0805 1N 10 X7R 50V These two components are supplied with the auxiliary 6350 015 24100 08 GAP CER 0805 1N 10 X7R 50V D range kits T800 06 0000 amp T800 06 0001 C353 015 24100 08 CAP CER 0805 1N 10 X7R 50V C356 015 23150 01 CAP CER 0805 150P 5 NPO 50V C359 015 24100 08 CAP CER 0805 1N 10 X7R 50V C201 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C362 015 24100 08 CAP CER 0805 1N 10 X7R 50V C202 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C365 015 22330 01 CAP CER 0805 33P 5 NPO 50V C204 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C368 015 22820 01 CAP CER 0805 82P 5 NPO 50V C205 020 07470 92 CAP BI P RA 4M7 50V 6X11 5 LS C370 015 24100 08 CAP CER 0805 1N 10 X7R 50V C207 014 07470 00 CAP TANT CHIP 4U7 3 5 X 2 8MM C373 022 55470 10 CAP MYLAR Al 47N 5 63V POTTED C209 015 25470 08 CAP CER 0805 47N 10 X7R 50V C376 015 24100 08 CAP CER 0805 1N 10 X7R 50V C210 015 06100 08 CAP CER 1206 100N 10 X7R 50V C379 015 24100 08 CAP CER 0805 1N 10 X7R 50V C211 015 06100 08 CAP CER 1206 100N 10 X7R 50V C382 015 22470 01 CAP CER 0805 47P 5 NPO 50V C213 025 08100 02 CAP TANT BEA
266. ating frequencv If the above result is not achieved either the two modulators are incorrectly adjusted or a fault condition exists 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 7 5 6 PGM800Win Generated Errors The following errors are those most likely to occur using PGM800Win Refer to the PGM800Win software user s manual for a complete list of error messages Channel Switch Set The programmed default channel change was not accepted by the base station because a channel is selected externally Try turning the external channel switch off to change the default channel in PGM800Win Synth Out Of Lock The synthesiser received incorrect data or the data was corrupted Enter a frequency within the VCO switching range or tune the VCO Internal Error Data could not be read from the base station due to an internal error Check for shorts or open circuits on the SDA SCK SYNTH and EPOT lines The SDA SCK and SYNTH are normally high and the EPOT is normally low Write Read To An Unlinked Module The link to the module does not exist Undefined error Copyright TEL 30 04 98 C5 8 T836 837 Fault Finding M830 00 5 7 Fault Finding Charts Note The standard test point designations used in this section are as follows TP601 13 8V TP602 9V TP603
267. ation on anti static procedures when handling these devices This section provides the following information on the T836 transmitter and T837 exciter e parts lists e grid reference indexes e mechanical assembly drawings e PCB layouts e test points amp options connections drawings e circuit diagrams Section Title IPN Page 6 1 Introduction 6 1 3 6 2 T836 Transmitter PCB 220 01395 02 6 2 1 6 3 T837 Exciter PCB 220 01390 02 6 3 1 220 01390 03 6 3 27 Copyright TEL 23 07 99 C6 1 2 T836 837 PCB Information M830 00 30 04 98 Copyright TEL M830 00 T836 837 PCB Information C6 1 3 6 1 Introduction Product Type Identification You can identify the transmitter or exciter type by checking the product code printed on a label on the rear of the chassis product codes are explained in Section 1 3 in this Part of the manual and Fig ure 1 1 in Part A shows typical labels You can further verify the product type by checking the placement of an SMD resistor in the table that is screen printed onto the top side of the PCB similar to the example drawn below this table also appears in the resist layer on the bottom side of the PCB In this example the resistor indicates that the product was built as a T836 10 XXXX I I 836 PRODUCT TYPE I I 836 MM 83610 1 1 836 20 I I 836 1 I 836 13 1 I 836 23 PRODUCT TYPE 1 I 836 15 1 I 836 25 Note The only function of this resistor is
268. ats but are not designed for analogue transmissions e g tone or speech The T800 32 0010 is adapted for use with an external reference oscillator for simulcast transmission The T800 32 0000 and T800 32 0010 are not designed for use with 66 to 88MHz equipment Copyright TEL 23 07 99 H6 T800 Ancillary Equipment M830 00 External Frequency Reference T800 06 0000 External Frequency Reference Kit The T800 06 0000 kit provides an additional D range plug PCB assembly which incor porates a miniature RF connector to carry an externally generated 12 8MHz reference signal into a T800 Series II module This enables the use of very high stability external reference oscillators for special applications The D range PCB is also fitted with a Micromatch socket which can be connected to SK805 in the microcontroller section via the supplied loom to provide access to the channel change lines The kit comes complete with fitting instructions and all installation hardware T800 06 0001 External Frequency Reference Kit The T800 06 0001 is the same as the T800 06 0000 kit with the addition of a special coax cable for external frequency reference input One end of this coax is terminated with a miniature RF connector which fits into the D range socket in an appropriate backplane PCB e g T800 52 0000 to connect to a T800 Series II module fitted with a T800 06 0000 kit The other end is terminated with a BNC connector which can be mounted on the
269. blank panel x2 T800 41 0002 double module guide T800 44 0000 power supply guide T800 45 0000 PA guide T800 50 0000 standard rack frame backplane PCB Refer to the T800 Ancillary Equipment Service Manual for more information T800 22 0001 The T800 22 0001 is the same as the T800 22 0000 but is supplied packed flat in disas sembled form for ease of transport The wiring loom and backplane PCB are however supplied complete and ready for installation T800 22 0002 The T800 22 0002 is a standard 5U high rack frame without wiring loom which is designed to accommodate one 25 50 or 100W base station or repeater It comes fully assembled with the following items T800 15 0000 speaker panel with programming port T800 40 0001 blank panel x2 T800 41 0002 double module guide T800 44 0000 power supply guide T800 45 0000 PA guide T800 22 0003 The T800 22 0003 is the same as the T800 22 0002 but is supplied packed flat in disas sembled form for ease of transport T800 22 0004 The T800 22 0004 is a standard 5U high rack frame without wiring loom guides or front panels which comes fully assembled Copyright TEL 23 07 99 H8 T800 Ancillary Equipment M830 00 T800 22 0005 The T800 22 0005 is the same as the T800 22 0004 but is supplied packed flat in disas sembled form for ease of transport T800 23 0000 Slimline Repeater Mounting Kit The T800 23 0000 Slimline Repeater kit enables one T800 Series II receiver
270. ce manual M830 00 100 for information on the earlier model Series I T838 PA which is identified by the product code T838 10 Series I Compatible PA Series II Compatible PA L201 T838 L211 T839 R120 fitted not fitted not fitted fitted cyclic keying disabled enabled RF input front panel SMC rear panel BNC front panel Series I with black Tait logo Series II with blue Tait logo and Series I handle and Series II handle Copyright TEL 23 07 99 D5 1 4 T838 839 PCB Information M830 00 PCB Identification All PCBs are identified by a unique 10 digit internal part number IPN e g 220 12345 00 which is screen printed onto the PCB usually on the top side as shown in the example below ETE AO SE WEGWEGEE The last 2 digits of this number define the issue status which starts at 00 and increments through 01 02 03 etc as the PCB is updated Some issue PCBs never reach full production status and are there fore not included in this manual A letter following the 10 digit IPN has no relevance in identifying the PCB for service purposes Note It is important that you identify which issue PCB you are working on so that you can refer to the appropriate set of PCB information Parts Lists The 10 digit numbers 000 00000 00 in this Parts List are internal part numbers IPNs We can process your spare parts orders more efficiently and accurately if you quote the IPN and provide
271. configuration you require You should set the audio processor links before carrying out any of the tuning and adjustment procedures The factory settings are shown in brackets Function not connected microphone pre amp output to compressor input microphone pre amp output to multiplexer input multiplexer output to pre emphasis input multiplexer output to limiter input multiplexer output to compressor input not connected compressor output to multiplexer input compressor output to limiter input compressor output to pre emphasis input not connected pre emphasis output to multiplexer input A B e L M N G H I J K D E pre emphasis output to limiter input Hi not connected a The letters in this column and in the table in Section 2 1 2 below refer to the identification letters screen printed onto the PCB beside each pair of pins Copyright TEL 30 04 98 G2 2 T836 837 Optional Features M830 00 2 1 2 Typical Options microphone pre amp compressed and pre emphasised 3 4 1 2 3 4 3 4 line input pre emphasised B L H E standard set up microphone pre amp compressed and pre emphasised 2 ce O B M J D line input unprocessed line and microphone compressed 5 6 5 6 7 8 3 4 and pre emphasised C N J E microphone pre amp compressed 3 4 3 4 3 4 5 6 line and microphone flat response B M H F 2 2 Line Transformer Inputs And Outputs The li
272. d no CTCSS received CTCSS speech passed to line output high pass filtered speech internal CTCSS detection external CTCSS detection The conditions stated in the above table are defined as follows standard no CTCSS no CTCSS or other sub audio signalling used audio bandwidth 300Hz to 3kHz hum amp noise 55dB received CTCSS tone tone and speech transmitted down 600 ohm line speech to line output audio bandwidth 10Hz to 3kHz hum amp noise 45dB high pass filtered speech 400Hz to 3kHz internal CTCSS detection hum amp noise 30dB with 250 3Hz tone present external CTCSS detection decoding performed through the receiver but externally speech injected back into receiver via AUDIO 2 and sent down 600 ohm line Note 1 AUDIO 2 is available on D range 1 PL100 pin 7 via the link resistor R160 Although PL100 pin 7 is already assigned to SERIAL COM this can be disa bled by removing R808 Note 2 External CTCSS units can connect in series with the audio chain via AUDIO 1 and AUDIO 2 Copyright TEL 30 04 98 B3 10 T835 Initial Tuning amp Adjustment M830 00 3 6 Svnthesiser Alignment Ensure that the receiver has been programmed with the required frequencies using PGM800Win software Connect a high impedance voltmeter to PL4 1 or the junction of L1 amp R1 in the VCO this measures the synthesiser loop voltage Single Channel Multichannel
273. d 20V to tune the VCO This VCO control line is further filtered R510 C505 to attenuate noise and other spurious signals Note that the VCO frequency increases with increas ing control voltage 23 07 99 Copyright TEL M830 00 T835 Circuit Operation B2 11 2 11 VCO Refer to the VCO circuit diagram in Part E The VCO transistor Q1 operates in a common source configuration with an LC tank circuit coupled between its gate and drain to provide the feedback necessary for oscilla tion The VCO control voltage from the loop filter IC750 is applied to the varicaps D1 D4 to facilitate tuning within a 3MHz band of frequencies A trimcap CV1 is used for coarse tuning of the VCO The output from the oscillator circuit drives a cas code amplifier stage Q2 Q3 which supplies 10dBm typically to a further stage of amplification Q5 This is the final amplifier on the VCO PCB and delivers 22dBm typically to the receiver mixer input pad A low level sniff is taken from the input to Q5 and used to drive the divider buffer for the synthesiser IC740 The VCO operates at the actual frequency required by the first mixer i e there are no multiplier stages The VCO frequency spans from either 157 177MHz or 169 196MHz according to prod uct type refer to Section 1 4 The VCO is tuned to 21 4MHz above the desired receive frequency high side injection to produce a 21 4MHz IF signal at the output of the mixer 2 12 Receiv
274. d Local Oscillator VCO Received Signal Strength Indicator RSSI T835 High Level Block Diagram T835 Front End IF and Mute Block Diagram T835 Audio Processor Block Diagram T835 Power Supply And Regulator Block Diagram T835 Microcontroller Block Diagram T835 Synthesiser Block Diagram Copyright TEL 30 04 98 B2 2 T835 Circuit Operation M830 00 30 04 98 Copyright TEL M830 00 T835 Circuit Operation B2 3 2 1 Introduction Mixer if Mixer Front 2 21 4MHz IF End Svnthesised Second Local O Local Oscillator Oscillator 12 8MHz Master Oscillator The T835 receiver consists of a number of distinct stages e received signal strength indicator RSSI gt 455kHz IF Noise Mute Limiter Speaker Fi DA E Audio rocessor IO pea FM o J Line Detector T Carrier Mute gt RSSI gt O Figure 2 1 T835 High Level Block Diagram front end mixer synthesised local oscillator IF audio processor mute squelch regulator circuits These stages are clearly identifiable in Figure 2 1 Refer to the circuit diagrams in Sec tion 6 for further detail Copyright TEL 30 04 98 B2 4 T835 Circuit Operation M830 00 2 2 Receiver Front End Refer to the front end IF section and audio processor circuit diagrams sheets 4 3 and 2
275. d R280 determine the mute opening and closing times and in combination with solder links SL210 and SL220 provide three time delay options SL210 is linked as standard refer to Section 3 8 The mute control sig nal at pin 7 of IC270 is used to disable the speaker and line audio outputs The speaker output can be separately enabled for test purposes by operating the front panel mute disable switch 5W201 2 6 Carrier Mute Refer to the audio processor and IF section circuit diagrams sheets 2 and 3 respec tively in Section 6 and Figure 2 2 A high level carrier mute facility is also available The RSSI refer to Section 2 12 pro vides a DC voltage proportional to the signal strength This voltage is compared with a preset level set up on RV235 and may be linked into the mute timing circuit using PL250 PL250 selects either the noise mute or the carrier mute From this point both the noise and carrier mute circuits operate in the same manner using common circuitry 30 04 98 Copyright TEL M830 00 T835 Circuit Operation B2 7 2 7 Audio Processor Refer to the audio processor circuit diagram sheet 2 in Section 6 From RSSI IF Stage gt Optional gt o RSSI Output PL270 1 12V lt gt O Mute Relay Rel Carrier lead lt gt cay Mute gt gt Gate O
276. e 2 T800 03 0000 at the rear of the set All components except those on the VCO board are mounted on a single PCB This is secured to a die cast chassis which is divided into compartments to individually shield each section of circuitry Access to both sides of the main PCB is obtained by removing each of the two chassis covers There is provision within the chassis to mount small option PCBs The front panel controls include gating sensitivity line level monitor volume and a monitor mute switch The T835 has a width of 60mm and occupies a single space in a Tait rack frame which has the ability to accommodate up to seven standard modules 1 Although capable of operating over the 136 174MHz frequency range the T835 has a 3MHz switching range see Section 1 2 3 and Section 3 1 Copyright TEL 23 07 99 B1 6 T835 General Information M830 00 1 2 Specifications 1 2 1 Introduction The performance figures given are minimum figures unless otherwise indicated for equipment tuned with the maximum switching range and operating at standard room temperature 22 C to 28 C and standard test voltage 13 8V DC Where applicable the test methods used to obtain the following performance figures are those described in the EIA and ETS specifications However there are several parame ters for which performance according to the CEPT specification is given Refer to Sec tion 1 2 6 for details of test standards Details of test
277. e fitted as D range 2 but only if pins 8 ground and 12 serial com of D range 2 are not used in the Series I configuration 30 04 98 Copyright TEL M830 00 T835 836 837 SII SI Conversion 12 7 Remove this spring clip Ji i and refit it here Fit the coax as shown securing ii it in the groove in the chassis F with the spring clip Figure 2 3 1837 RF Output Coax Routing Copyright TEL 30 04 98 12 8 T835 836 837 SII SI Conversion M830 00 30 04 98 Copyright TEL M830 00 T838 839 SII SI Conversion 13 1 3 T838 839 SII SI Conversion 3 1 Introduction You must make a number of modifications to enable a T830 Series II PA to operate in a Series I rack frame These changes can be split into two groups mechanical and electri cal as described below Mechanical These changes involve putting on a new front panel because of the differences in height and width between a Series II and Series I panel Electrical These changes involve e inserting and removing components inside the module to disable cyclic keying e converting from rear RF input to front RF input This procedure assumes you have already purchased the appropriate Series I conver sion kit e T838 T800 70 0038 e T839 T800 70 0039 If not you should purchase one from your nearest Tait Dealer or Customer Service Organisation before beginning the procedure
278. e indicated by the last three digits of the manual product code These digits start at 200 and will increment through 201 202 203 etc as revision pack ages are published e g 203 issue status sm IL i n status Copyright TEL 23 07 99 4 M830 00 Thus issue 203 indicates the third revision to issue 2 and means that three packages should have been added to the manual The issue digit will only change if there is a major product revision or if the number of revision packages to be included means that the manual becomes difficult to use at which point a new issue manual will be published in a new ring binder PCB Information PCB information is provided for all current issue PCBs as well as all previous issue PCBs manufactured in production quanti ties and is grouped according to PCB Thus vou will find the parts list grid reference index if necessarv PCB lavouts and circuit diagram s for each individual PCB grouped together Errors If vou find an error in this manual or have a suggestion on how it might be improved please do not hesitate to contact Customer Support Radio Svstems Division Tait Electronics Ltd Christch urch New Zealand full contact details are on page 2 Updating Equipment And Manuals In the interests of improving performance reliabilitv or servicing Tait Electronics Ltd reserve the right to update their equipment and or manuals without prior notice Copvright All information contained
279. e power rises above presettable limits alarms may be triggered The alarm outputs are open drain configuration and are low under normal conditions i e forward and reverse power levels are normal IC103 pins 12 13 amp 14 and pins 5 6 amp 7 form comparators with thresholds adjusted via RV101 and RV105 respectively The inputs are from the forward and reverse power sig nals from the directional coupler buffered by IC103 pins 1 2 amp 3 and pins 8 9 amp 10 Thus the power levels at which the forward and reverse power alarms are triggered are defined by RV101 and RV105 respectively 2 3 5 Forward And Reverse Power Metering Forward and reverse power signals from the two IC1 buffers are available for metering purposes The output currents are adjustable via RV103 forward power and RV107 reverse power 2 3 6 Fan Control Circuitry Invert 13 8V Tx Key o gt Filtered O Q101 on NAND RA E Q107 Q109 Fan Q103 ki A NTC Comparator 108 R107 Q103 Q105 Fan Driver l R111 R112 High Temp Ref O Sense On PCB gt R237 IC101 Q201 NTC Comparator High Temp Ref o Sense On Module Flange R215 IC204 OR NTC Comparator D202 R212 High Temp R214 Sense On 3 Ref 0 7 Module Flange R219 IC204 NTC Comparator Low Temp gt Sense Ref o0l ME IC101 Figure 2 4 T839
280. e station or repeater The PCB mounts across the rear panel of the T800 41 0002 double module rack frame guide enabling a T800 Series II receiver and exciter transmitter to plug directly into the D range sockets provided on the inner side of the PCB both D range 1 and D range 2 are provided for The other side of the PCB features a programming port D range connectors which provide all module inputs and outputs and two DIP switches for external channel selection Refer to the T800 Ancillarv Equipment Service Manual for more information T800 50 0001 The T800 50 0001 is similar in function and design to the T800 50 0000 but is designed to allow connection of TA087 or TA387 channel select panels It has one 25 way OEM D range connector but will not accept personality PCBs T800 52 0000 The T800 52 0000 is similar in function and design to the T800 50 0000 but is designed for use in Quasi Sync applications The PCB has an external reference D range fitted and has provision for connecting TA087 or TA387 channel change speaker panels and a TA136 alarm panel The T800 52 0000 will not accept personality PCBs T800 60 0000 The T800 60 0000 personality PCB is designed to plug into the two 25 way D range sockets on the T800 50 0000 backplane PCB The T800 60 0000 provides channel selec tion for both receiver and exciter transmitter via a single DIP switch remote channel selection and alarm monitoring via Micromatch sockets and receiver and e
281. eatsink Figure 1 1 in Part A shows typical labels You can further verify the PA type by checking the placement of an SMD resistor in the table that is screen printed onto the PCB refer to Section 5 1 for more details 23 07 99 Copyright TEL M830 00 T838 839 Circuit Operation D2 1 2 T838 839 Circuit Operation This section provides a basic description of the circuit operation of the T838 839 PA Refer to Section 5 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components Refer also to Figure 3 3 which shows the location of the main adjustment controls The following topics are covered in this section Section Introduction RF Circuitry Control Circuitry Power Control Driver Power Level Thermal Protection Forward And Reverse Power Alarms Forward And Reverse Power Metering Fan Control Circuitry Power Supply amp Regulator Circuits T838 High Level Block Diagram T839 High Level Block Diagram T838 839 Control Circuitry Block Diagram T839 Fan Control Logic Diagram T838 839 Power Supply amp Regulator Circuitry Block Diagram Copyright TEL 23 07 99 D2 2 T838 839 Circuit Operation M830 00 30 04 98 Copyright TEL M830 00 T838 839 Circuit Operation D2 3 2 1 Introduction Power Control Vsupply Q137 400mW HIC201 600mW 1W 100mW 60W 50W RF In e 3 LPF o RF Out
282. ed Transmit Timeout Sets the maximum continuous trans 0 300 seconds in 10 mission time Once the timer has timed out the transmitter must be keved again unless prevented by the transmit lockout timer second steps Transmit Lockout Sets the period of time that must 0 60 seconds in 10 elapse after a timeout before the trans second steps mitter can re transmit Once the timer has timed out the transmitter can be keyed again a Adjustable in 20ms steps in PGM800Win version 2 12 and later b Adjustable from 0 to 600 seconds in PGM800Win version 2 12 and later Tx Enable oOo IE On Tx Reg L Tail Time Tx Enable On Tx Reg i Lockout Time Timeout Time Figure 4 1 T836 837 Transmit Timers 4 5 Frequency Response If the T836 837 has been correctly adjusted the pre emphasis and limiting responses should closely match those shown in Figure 4 2 and Figure 4 3 respectively Note The limits shown on these graphs should not be exceeded If you are using an RF test set turn off all filters Measure the pre emphasis response as follows Reduce the line level to give 1kHz 0 8kHz 0 5kHz deviation at 1kHz Sweep the modulation frequency The response should closely match that shown in Figure 4 2 Measure the limiting response as follows Set the line level to give 3kHz 2 4kHz 1 5kHz deviation at 1kHz 23 07 99 Copyright TEL M830 00 T836 837 Functional Testing C4
283. ed Signal Strength Indicator RSSI Refer to the IF section circuit diagram sheet 3 in Section 6 The RSSI provides a DC voltage proportional to the signal level at the receiver input and is an on chip function of IC350 Buffering is provided by IC390 and the voltage is avail able at D range 1 PL100 pin 5 The RSSI also provides the capability for high level signal strength muting which may be selected on PL250 refer to Section 3 5 The mute threshold may be set between 115dBm and 70dBm at RV235 Copyright TEL 23 07 99 B2 12 T835 Circuit Operation M830 00 30 04 98 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3 1 3 1835 Initial Tuning amp Adjustment e Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following section describes both short and full tuning and adjustment procedures and provides information on e channel programming e selecting the required audio links e synthesiser alignment e receiver front end and IF alignment e noise and carrier level mute adjustment e setting the line and monitor output levels e setting up the RSSI Note Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Figure 4 3 which shows the location
284. efer ence e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns as shown below circuit reference lists components Ref Var IPN Description In alphanumeric 0126 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V rder 6127 020 09220 01 CAP ELECT RADL 220M 16V 10X12 5MM orae C128 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V C129 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V amp C130 10 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R 50V amp C130 15 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R SOV amp C130 20 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R SOV 80130 25 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7A SOV C131 015 24100 08 CAP CER 0805 CHIP 1N 10 X7R 50V C132 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R 50V C133 015 05470 08 CAP CER 1206 CHIP 47N 10 X7R SOV variant column indicates that this is a variant component description which is fitted only to gives a brief description the product type listed of the component Internal Part Number order the component by this number The mechanical and miscellaneous section lists the variant and common parts in IPN order Parts List Amendments At the front of the parts list is the Parts List Amendments box an example of which is shown below This box contains a list of component changes which too
285. efer to Section 1 7 2 Copyright TEL 23 07 99 G1 2 T835 Link Selectable Features M830 00 1 6 300Hz High Pass Filter Link PL240 also allows the insertion of this filter to improve hum and noise perform ance 1 7 Audio Processor Links The tables in this section are the same as those in Section 3 5 in Part B Thev have been repeated here for ease of reference 1 7 1 General Use the following table to set up the audio processor to the configuration you require Xou should set the audio processor links before carrving out the receiver alignment The factory settings are shown in brackets l Function de emphasised response flat response flat response de emphasised response audio input via AUDIO 2 pad audio from internal CTCSS speech filter audio input via I O pad P250 bypass high pass filter 300Hz high pass filter in circuit audio input via PL230 or I O pad noise mute carrier mute RX DISABLE link not connected relay link not connected Refer to Section 1 7 2 for further details 30 04 98 Copyright TEL M830 00 T835 Link Selectable Features G1 3 1 7 2 Audio Processor Linking Details For CTCSS Xou must connect the audio processor links correctlv according to the CTCSS option used as shown in the table below CTCSS Option standard no CTCSS received CTCSS speech passed to line output high pass filtered speech internal CICSS detection ex
286. elow This box contains a list of component changes which took place after the parts list and dia grams in this section were compiled These changes e g value changes added deleted compo nents etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order The number in brackets at the end of each entry refers to the Tait internal Change Order document IPN of new Change Order component number Parts List Amendments R306 Changed from 1802 to 5602 036 13560 00 to increase sensitivity 71003 circuit reference description or IPN of change Variant Components A variant component is one that has the same circuit reference but different value or specification in different product types Where two products share the same PCB the term variant is also used to describe components unplaced in one product Variant components have a character prefix such as 8 or before the circuit reference e g amp R100 The table below explains the variant prefixes used in T800 Series II products If the variant prefix is the component will change according to channel spacing change according to frequency stability change according to frequency band be placed or unplaced for special applications be unplaced in one product where two products share the same PCB
287. ely 12kHz 9kHz 6kHz deviation at an amplitude of 80dBm Connect the modulating 10Hz audio signal to the X input of an oscilloscope and observe the 455kHz IF input to 1C350 pin 16 via a suitable RF probe on the Y input Alternatively use an oscilloscope probe for the Y input to monitor the RSSI output voltage at TP310 RSSI test point or pin 5 of D range 1 PL100 This will give a demodulated log response and only the top half of the wave forms shown in Figure 5 2 and Figure 5 3 will be displayed on the oscilloscope screen The X input should be DC coupled Check that the swept response has a rounded top and no sharp non linearities refer to Figure 5 2 Increase the RF level to 50dBm the trace will now show the shape of the 455kHz ceramic filter XF340 Check that the response has no sharp non linearities If sharp non linearities do occur replace the filter and sweep again to confirm a satisfactory solution refer to Figure 5 3 Figure 5 2 IF Swept Response Figure 5 3 Ceramic Filter Swept Response Copyright TEL 23 07 99 B5 8 T835 Fault Finding M830 00 5 6 PGM800Win Generated Errors The following errors are those most likely to occur using PGM800Win Refer to the PGM800Win software user s manual for a complete list of error messages Channel Switch Set The programmed default channel was not acc
288. emove the four hex nuts and washers from the splitter com biner hybrids IC203 and IC205 Remove the 11 PCB retaining screws Push the three LEDs out of their front panel grommets Lift the PCB gently from the heatsink to gain access to the underside of the board Note IC201 IC202 and R223 may be stuck down with heatsink compound You may need to carefully prise them away from the heatsink with a small screwdriver Caution Keep the heatsink compound clean while the PCB is detached Any objects caught in the heatsink compound underneath the module which prevent effective earthing and or heatsinking will cause cata strophic failure A Caution Do not operate the PA with the PCB detached as the heatsink is used for earthing and heat dissipation 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 13 To replace the PCB reverse the order of removal taking care that the wiring is cor rectly positioned and not pinched Make sure that the heatsink compound has staved clean and that the insulating pad for Q137 is not damaged If you have difficulty refitting the LEDs try pushing the body of the LED back into the grommet with a thin screwdriver or spike A Caution Tighten the splitter combiner hybrid hex nuts to a torque of 22N cm 2in lbf Any greater force will damage the devices Tighten the RF power module screws to a torque of 56N cm 5in lbf with an accurate torque driver Deviating from this f
289. eous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend column indicates their position in the mechanical assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments 80269 C289 C314 C316 C347 0448 C910A C950A D111 IC710 R313 R320 R321 R355 R356 R357 R713 RV220 303 11169 03 312 01052 01 312 01053 01 349 00020 36 T836 16 0000 836 26 0000 changed from 1p5 IPN 015 21150 01 to 4p7 IPN 015 21470 01 for FCC Type Approval requirements 710655 T836 16 0000 836 26 0000 changed from 47n IPN 015 25470 08 to 68n IPN 015 25680 08 for FCC Type Approval requirements 710655 Deleted to improve low frequency stability 710137 Changed from 22n 015 25220 08 to 47n 015 25470 08 to improve cyclic keying 8 standby current 710059 136 156MHz 10 13 8 15 changed from 39p 015 02390 02 to 33p 015 02330 02 to improve low band per formance 2p2 capacitors 015 01220 06 added on top of C910 8 C950 to improve the low pass filter at 174MHz 710155 Changed from MR750
290. epted by the base station because a chan nel is selected externally Try turning the external channel switch off before changing the default channel in PGM800Win Synth Out Of Lock The synthesiser received incorrect data or the data was corrupted Enter a frequency within the VCO switching range or tune the VCO Internal Error Data could not be read from the base station due to an internal error Check for shorts or open circuits on the SDA SCK SYNTH and EPOT lines The SDA SCK and SYNTH are normally high Write Read To An Unlinked Module The link to the module does not exist Undefined error 30 04 98 Copyright TEL M830 00 T835 Fault Finding B5 9 5 7 Fault Finding Charts Note The standard test point designations used in this section are as follows TP601 13 8V TP602 9V TP603 20V TP604 5V 5 7 1 Microcontroller IC810 5 7 1 1 Basic Checks Is the 12 8MHz clock A Check IC740 ton IC810 21 ie calado synthesiser A Y Use a DSO to check N A Pulsing Check the High or open circuit Repl I 30 operation of IC650 IC810 ling state x ie active high PR pulse at power up Y tow digital storage oscilloscope Rep an E Check state of Rulsing Check state High Replace pins 36 to 43 of pin 35 1C810 Static high low Low floating Correct the fault causing Re
291. equencv response IC260 pin 7 ins 1 283 flat between 50 8 300Hz PRS i N Check stage IC260 Check low Audio frequency pins 5 6 amp 7 pass filter N response IC260 stage IC260 pin 1 flat 300Hz pins 1 2 amp 3 to 2kHz Y Audio frequency N response IC210 Check integrator IC210 pins 8 9 amp 10 pin 8 6dB octave slope aa Audio superimposed N Check audio path on 200kHz signal between integrator 1C720 pins 9 amp 3 synth amp phase modulator l Y 200kHz clipped N Check IC720 Q710 Q720 triangle wave at ej Q730 Q740 D710 D720 IC720 pins 8 8 4 C727 C729 C724 8 C725 Y Check loop filter l 1C750 pins 5 6 8 7 Audio signal at Y preek audio POWA amp associated 7 IC210 pin 14 ka Mota il eb ona WE components 9 amp pi N Y Audio signal at if Check IC210 Select standard IC230 pin 12 pins 12 13 amp 14 audio configuration N l gt Y Check 1C230 pins 1 2 8 3 NT ec pins 1 or Audio signalat e H i Mi jek Conect audio 220 pin 14 ola to line input b response as per key exciter N Section 4 5 Y a Y Check IC230 pins 12 13 amp 14 l b sett or audio path between multiplexer Y N pn 8 pre emphasis network Does exciter Chec
292. es at 100W Adjust the forward power alarm set control RV101 so that the forward power alarm LED lights Check the alarm level setting bv adjusting the power up and down and observing the alarm LED A few watts hvsteresis can be expected Readjust RV109 for the normal operating level Remote indication is available at pin 3 of D range 1 Reverse Power Power up the T838 839 and adjust the front panel power control RV109 for the normal operating power level Place a known mismatch of the required value e g 3 1 VSWR and adjust the reverse power alarm set control RV105 so that the reverse power alarm LED lights 30 04 98 Copyright TEL M830 00 T838 839 Initial Adjustment D3 7 Example A VSWR of 3 1 can be simulated by connecting an unterminated 3dB pad 100W to the PA output This will result in a return loss of 6dB Note Remote indication is available at pin 4 of D range 1 Copyright TEL 30 04 98 D3 8 T838 839 Initial Adjustment M830 00 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 1 4 1838 839 Fault Finding f Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following test procedures and fault finding flow charts mav be used to help locate a hardware problem however thev are bv no means a complete fault finding pr
293. es with tapered sides ridges between driving flutes Figure 2 2 Pozidriv amp Philips Screw amp Screwdriver Identification 30 04 98 Copyright TEL M830 00 Mechanical A2 3 2 3 Disassembly Reassembly 2 3 1 Receivers Exciters Transmitters To carry out alignment or change option links you need to remove only the top cover i e the one adjacent to the front panel handle and on the opposite side to the main D range connector D range 1 PL100 Xou need to remove the bottom cover to e access transmitter RF power transistors and many SMD components e change solder blob links e fit test leads to circuit block access points 2 3 2 Power Amplifiers You should carry out the tuning and power output level setting procedures with the cover on 2 4 Cover Screw Torques Receivers Exciters Transmitters 1136Nm 12in lbf Power Amplifiers 09Nm in lbf Copyright TEL 23 07 99 A2 4 Mechanical M830 00 2 5 Chassis 8 Cover Compatibility The chassis and covers used in T800 Series II modules incorporate a number of design changes to improve Electro Magnetic Compatibility EMC performance It is impor tant that only the new design covers are fitted to the new chassis to ensure correct mechanical fit and continued compliance with appropriate EMC Type Approval regula tions Figure 2 3 below shows some of the main features which can be used to identify the new design chassis and c
294. etter than 117dBm assuming that the audio levels are not being overdriven refer to Section 3 4 5 Mute Adjustment Carry out the one of the following sets of instructions according to the mute option you have selected 3 4 4 1 3 4 4 2 3 4 5 Noise Mute Connect pins 1 amp 2 of PL250 to enable the noise mute Set the RF level to 105dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Set RV230 front panel gating sensitivity fully anticlockwise Adjust RV330 noise mute gain fully clockwise to close the mute if necessary turn off the RF signal and then turn it on again Rotate RV330 anticlockwise until the mute just opens Reset the signal generator for the required opening sinad and adjust RV230 clock wise until the mute just opens Carrier Level Mute Connect pins 2 amp 3 of PL250 to enable the carrier mute and disable the noise mute Apply an on channel signal from the RF generator at the required mute opening level with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV235 carrier mute anticlockwise to close the mute if necessary momen tarily turn off the RF then slowly adjust it clockwise until the mute just opens The mute should now open at this preset level Line Amplifier Output Apply an on channel signal from the RF generator at a level of 70dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV210 front panel line level to set the line level to the required output level
295. evel Adjustment Remove the CTCSS signal if used Set the injected signal at the line input to the required line level typically 10 to 20dBm Adjust RV210 line sensitivity to provide 3kHz 2 4kHz 1 5kHz deviation Reapply the CTCSS signal if required Copyright TEL 23 07 99 C3 8 T836 837 Initial Tuning amp Adjustment M830 00 3 5 Audio Processor Links 3 5 1 Link Details Use the following table to set up the audio processor to the configuration you require You should set the audio processor links before carrying out any of the tuning and adjustment procedures The factory settings are shown in brackets Function not connected microphone pre amp output to compressor input microphone pre amp output to multiplexer input multiplexer output to pre emphasis input multiplexer output to limiter input multiplexer output to compressor input not connected compressor output to multiplexer input compressor output to limiter input compressor output to pre emphasis input not connected pre emphasis output to multiplexer input A B e L M N G H I J K D E pre emphasis output to limiter input Hi not connected a The letters in this column and in the table in Section 3 5 2 below refer to the identification letters screen printed onto the PCB beside each pair of pins 3 5 2 Tvpical Options microphone pre amp compressed and pre emphasised line input pre emp
296. evels The T837 is a synthesised microprocessor controlled FM base station exciter designed for single or multichannel operation in the 136 to 174MHz frequency range With a standard power output of only 800mW the exciter is designed for use with the T838 50W or T839 100W power amplifiers The RF section of the exciter comprises a fre quency synthesiser which provides 170mW of frequency modulated RE drive to a two stage wide band output amplifier A wide selection of audio characteristics may be obtained from the audio processor Optional circuit blocks are an audio compressor and a pre emphasis stage They can be bypassed or linked to one or both audio inputs and then back into the remaining audio circuitry in almost any combination All audio processor options are link selectable The synthesiser frequency is programmed via the serial communications port Eight channel select lines are accessible via an optional D range connector D range 2 T800 03 0000 at the rear of the set All components except those of the VCO are mounted on a single PCB This is secured to a die cast chassis which is divided into compartments to individually shield each sec tion of circuitry Access to both sides of the main circuit board is obtained by removing each of the chassis lids There is provision within the chassis to mount small option PCBs The front panel controls include line sensitivity microphone socket and carrier switch This switch turns on t
297. for regional Type Approval information T1838 10 0000 Rev 1 900000 Tait Electronics Limited Made in New Zealand product code FT835 10 0000 Rev 1 WEWN 900000 Tait Electronics Limited Made in New Zealand serial number Figure 1 1 Typical Product Code amp Serial Number Labels If you require information about a particular PCB please quote the full PCB internal part number IPN which is screen printed onto the top side of the board refer to the appropriate PCB Information section in this manual for more details AN 1 2 Caution CMOS Devices This equipment contains CMOS Devices which are susceptible to damage from static charges Care when handling these devices is essential For correct handling proce dures refer to the manufacturers data books e g Philips data books covering CMOS devices or Motorola CMOS data books Section 5 Handling etc An anti static bench kit refer to Figure 1 2 is available from Tait Electronics Ltd under the following product codes e KS0001 1 conductive rubber bench mat 1 earth lead to connect the mat to ground e KS0004 1 wrist strap Copyright TEL 23 07 99 A1 2 General M830 00 conductive conductive rubber wrist strap bench mat to building earth not mains earth Figure 1 2 Typical Anti static Bench Set up A 1 3 Caution Aerial Load The equipment has been de
298. ft Corporation Copyright TEL 30 04 98 A4 2 Software History M830 00 e Extra information that is not stored in the radio but which is still relevant to the radio can be saved to a file on disk e g note field auxiliarv pin names etc Note The data files produced by BASEPROG V1 0 all DOS versions of PGM800 and PGM800Win V1 0 are still compatible with PGM800Win V2 00 30 04 98 Copyright TEL M830 00 BI Part B 1835 Receiver This part of the manual is divided into six sections as listed below There is a detailed table of contents at the start of each section Section Title General Information Circuit Operation Initial Tuning r Adjustment Functional Testing Fault Finding o a aA w Np ep PCB Information Copyright TEL 30 04 98 BII M830 00 30 04 98 Copyright TEL M830 00 T835 General Information B1 1 1 T835 General Information This section provides a brief description of the T835 receiver along with detailed speci fications and a list of types available The following topics are covered in this section Section Introduction Specifications Introduction General RF Section Audio Section General CTCSS Mute Operation Microcontroller Test Standards European Telecommunication Standard ETS DTI CEPT Recommendation T R 24 01 Telecommunications Industry Association Product Codes Standard Product Range Title T835 M
299. g signals to initiate a specific response in the receiver Copyright TEL 23 07 99 D1 8 T838 839 General Information M830 00 ETS 300 279 February 1996 Radio equipment and systems electromagnetic compatibility EMC standard for pri vate land mobile radio PMR and ancillary equipment speech and or non speech 1 2 3 2 DTI CEPT Recommendation T R 24 01 Annex I 1988 Technical characteristics and test conditions for radio equipment in the land mobile service intended primarilv for analogue speech Annex II 1988 Technical characteristics of radio equipment in the land mobile service with regard to quality and stability of transmission 1 2 3 3 Telecommunications Industry Association ANSI TIA EIA 603 1992 Land mobile FM or PM communications equipment measurement and performance standards 30 04 98 Copyright TEL M830 00 T838 839 General Information D1 9 1 3 Product Codes The three groups of digits in the T830 Series II product code provide information about the model type and options fitted according to the conventions described below The following explanation of T830 Series II product codes is not intended to suggest that any combination of features is necessarily available in any one product Consult your nearest Tait Dealer or Customer Service Organisation for more information regarding the availability of specific models types and options Model The Model group indicates the basic function of the pr
300. gle space in a Tait rack frame which has the ability to accommodate up to seven standard modules The T839 has a width of 120mm and occupies a double space Copyright TEL 30 04 98 D1 6 T838 839 General Information M830 00 1 2 Specifications 1 2 1 Introduction The performance figures given are minimum figures unless otherwise indicated for equipment operating at standard room temperature 22 C to 28 C and standard test voltage 13 8V DC Where applicable the test methods used to obtain the following performance figures are those described in the ETS specification Refer to Section 1 2 3 for details of test stand ards Details of test methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd 1 2 2 General Power Output T838 Rated Power 50W Range Of Adjustment 10 to 60W typical T839 Rated Power 100W Range Of Adjustment 20 to 120W typical Input Power 600mW to 1W Duty Cycle Rating T838 50W continuous to 60 C T839 100W continuous to 60 C Intermodulation 70dBc or 40dBi with 25dB isolation PA with output isolator amp interfering signal of 30dBc Mismatch Capability Ruggedness refer to your nearest Tait Dealer or Customer Service Organisation Stability 5 1 VSWR all phase angles Supply Voltage Operating Voltage 10 8 to 16V DC Standard Test Voltage 13 8V DC Polarity negative earth only Polarity Pr
301. grams for the VCO PCB are in Part E The following topics are covered in this section Section Visual Checks Component Checks Front Panel LED Indicator DC Checks Power Rails VCO Locking RF Checks T836 Drive Power T836 PA Output Power 1837 Output Power Audio And Modulation PGM800Win Generated Errors Copyright TEL 23 07 99 C5 2 T836 837 Fault Finding M830 00 Section 5 7 Fault Finding Charts 5 8 5 7 1 Microcontroller 5 8 5 7 1 1 Basic Checks 5 8 5 7 1 2 Serial Communications 5 9 5 7 1 3 CTCSS Encode 5 10 5 7 2 Regulator 5 11 5 7 3 Synthesiser 5 12 5 7 4 T836 Drive Amplifier 5 15 5 7 5 T836 PA amp Power Control 5 16 5 7 6 T837 Exciter Drive Amplifier 5 17 5 7 7 Audio Processor 5 18 5 8 To Replace The T836 PA Transistors Q415 amp Q425 5 19 RF Diode Probe Circuit Positioning Of Components Around Q425 amp Q415 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 3 5 1 Visual Checks Remove the covers from the T836 837 and inspect the PCB for damaged or broken com ponents paying particular attention to the surface mounted devices SMD s Check for defective solder joints If repair or replacement is considered necessary refer to Section 3 of Part A 5 2 Component Checks If you suspect a transistor is faulty you can assess its performance by measuring the for ward and reverse resistance of the junctions Unless the device is comple
302. gulator fault finding chart Section 5 7 2 for fault diagnosis Check the 13 8V TP601 and 9V TP602 supplies at their test points in the regula tor compartment with a DMM Check the 5V TP604 and 20V TP603 rails at their respective test points in the regulator compartment Check that Tx Reg TP305 in the exciter compartment comes up to 8 8V when the exciter is keyed Check the 5V digital regulator output TP607 in the regulator compartment Check for short circuits 5 4 2 VCO Locking Key the exciter Using a DMM monitor the VCO control voltage at PL4 1 or the junction of L1 and R1 on the VCO PCB If the synthesiser is locked and the VCO aligned the voltage at this point should be between 5 and 13V If the VCO is not locked refer to the synthesiser fault finding chart Section 5 7 3 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 5 5 5 RF Checks In circuit RF levels may be measured with an RF probe on which the earth lead has been shortened to a minimum i e 13mm Refer to the circuit diagrams for typical levels Figure 5 1 shows a suitable RF probe circuit Probe in OK AX lt fe fen o nd ERROR BAT l 2 DC to DVM or Oscilloscope 1N6263 in 100k Earthing Clip This unit is not suitable for use on high power RF circuits Figure 5 1 RF Diode Probe Circuit 5 5 1 1836 Drive Power Refer to the drive amplifier fault finding chart Section 5 7 4 Ensure that the
303. hasised standard set up microphone pre amp compressed and pre emphasised line input unprocessed line and microphone compressed and pre emphasised microphone pre amp compressed line and microphone flat response 30 04 98 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 9 3 6 Synthesiser Alignment Ensure that the T836 837 has been programmed with the required frequencies using PGM800Win software Single Channel Select a channel using PGM800Win Multichannel Select the middle channel via PGM800Win Connect a high impedance voltmeter to PL4 1 or the junction of L1 and R1 in the VCO this measures the synthesiser loop voltage Key the transmitter by earthing the Tx Key line Single Channel Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V Multichannel Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V on the middle channel If there is no middle channel tune CV1 so that the chan nels are symmetrically placed around a loop voltage of 9V All channels should lie within the upper and lower limits of 13V and 5V respectively Do not attempt to program channels with a greater fre quency separation than the specified switching range 8MHz Check that the exciter output power is T836 500mW 200 100mW measured at SK310 in the exciter section T837 800mW 200mW measured at the rear panel N type connector Measure the exciter output
304. hat the VCO is on the correct frequencv and the receiver correctiv aligned Check that links SL405 to SL440 and link B in the front end are set correctly for the operating frequency refer to Section 3 7 Check that the 12dB sinad sensitivity into the front end is as follows 117dBm de emphasised response 111dBm flat response If the sensitivity is poor you can trace the fault by measuring the sensitivity into successive circuit blocks Prepare a test cable by connecting a 1nF capacitor to the end of a length of coax cable as shown in Figure 5 1 a N 1nF Coax a ToTestCable Connect To Earth Figure 5 1 RF Test Cable Note Before using the test cable ensure the coax braid is connected to an earth point on the PCB Using the RF test cable apply a modulated 21 4MHz signal to the test breaks in the IF section or an on channel RF signal to the front end test breaks Check that the sensitivity at each test break is within 2dB of the levels shown on the circuit diagram Poor sensitivity indicates a fault in one of the circuit blocks following the test break Copyright TEL 30 04 98 B5 6 T835 Fault Finding M830 00 Note Poor sensitivity into the mixer can be caused by lack of drive level from the VCO the drive level should be gt 17dBm Refer to the receiver fault finding charts Section 5 7 6 for further information 5 5 3 Oscillator Stability 5 5 3 1 TCXO While m
305. have published this manual in a ring binder so that revision packages containing additional information pertaining to new issues of PCBs can be added as required Revision Packages Revision packages will normally be published to coincide with the release of information on a new PCB and may also contain additions or corrections pertaining to other parts of the manual You may order as many packages as you require from your local Tait Dealer or Customer Service Organisation Revision pack ages are supplied ready punched for inclusion in your manual Revision Control Each page in this manual has a date of issue This is to comply with various Quality Standards but will also serve to identify which pages have been updated and when Each page and its publication date is listed in the List of Effective Pages and a new list containing any new revised pages and their publica tion dates will be sent with each revision package Any portion of text that has been changed is marked by a verti cal line as shown at left in the outer margin of the page or col umn Where the removal of an entire paragraph means there is D no text left to mark an arrow as shown at left will appear in the outer margin The number beside the arrow will indicate how many paragraphs have been deleted Changes to diagrams that cannot be marked by these methods will be explained in an Amendments Box added to the diagram The manual issue and revision status ar
306. he carrier unmodulated as an aid to servicing The T836 and T837 are both 60mm wide and each occupies a single space in a Tait rack frame which has the ability to accommodate up to seven standard modules 1 Although capable of operating over the 136 174MHz frequency range the T836 and 1837 have an 8MHz switching range see Section 1 2 3 and Section 3 1 Copyright TEL 23 07 99 C1 8 T836 837 General Information M830 00 1 2 Specifications 1 2 1 Introduction The performance figures given are minimum figures unless otherwise indicated for equipment tuned with the maximum switching range and operating at standard room temperature 22 C to 28 C and standard test voltage 13 8V DC Where applicable the test methods used to obtain the following performance figures are those described in the EIA and ETS specifications However there are several parame ters for which performance according to the CEPT specification is given Refer to Sec tion 1 2 6 for details of test standards Details of test methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd The terms wide bandwidth mid bandwidth and narrow bandwidth used in this and following sections are defined in the following table Modulation Receiver 100 Deviation IF Bandwidth Wide Bandwidth 25kHz 15 0kHz Mid Bandwidth 20kHz 12 0kHz Narrow Bandwidth 12 5kHz 7 5kHz Channel Spacing
307. he switching range repeat steps 1 4 below for each channel that will be used usually needed only for data applications In applications where the modulation response is less critical e g voice use only carry out steps 1 4 below on the middle channel and use the EPOT Fill option in PGM800Win to copy the value to the other channels 1 Inject an audio signal of 600Hz 1 5V rms 5dBm into the CTCSS input D range 1 PL100 pin 8 Key the transmitter by earthing the Tx Key line 2 Adjust the output from the audio generator to obtain 3kHz 2 4kHz 1 5kHz deviation at 600Hz 3 Change the input frequency to 120Hz and using PGM800Win adjust the value of the Reference Modulation EPOT setting for the current channel to obtain 3kHz 2 4kHz 1 5kHz deviation you can use either the mouse or up and down arrow keys 4 Change the input frequency back to 600Hz Repeat steps 2 and 3 above until the deviations achieved at the two input frequen cies are within 0 2dB of each other You will need to do this at least four times 5 Sweep the audio between 50 and 300Hz for peaks Note A peak between 50 and 300Hz will indicate a fault condition i e incorrect set up or modulation circuitry fault The specification window is 1dB relative to 150Hz from 65 to 260 Hz 1 Use the EDIT FILL button on the tool bar or go to Edit Fill Epot Settings on the menu bar 23 07 99 Co
308. hing across the entire band 30 04 98 Copyright TEL M830 00 T836 837 Circuit Operation C2 13 2 9 T837 Exciter Drive Amplifier Refer to Figure 2 2 and the exciter circuit diagram sheet 3 in Section 6 3 A two stage wide band amplifier Q365 Q370 provides an output level of approxi mately 800mW 29dBm for an input of 170mW 22dBm from the VCO 1C330 pins 5 6 7 Q310 and Q315 provide a 10 5V regulated supply for the exciter To reduce the spurious output level when the synthesiser is out of lock the Tx Reg and Lock Detect signals are gated to inhibit the exciter control circuit and to switch off the RF signal at the input to the drive amplifier This is achieved by a PIN switch attenuator D340 D350 D360 Cyclic keying control is provided by additional circuitry consisting of several time delay ramp and gate stages e Q305 IC330 pins 5 6 7 power ramping e 0340 0345 Tx Reg and Lock Detect gate e 0320 0325 0330 0335 delay and PIN switch drive This is to allow the RF power circuits both exciter and PA to ramp up and down in a controlled manner so that minimal adjacent channel interference is generated during the transition R359 R360 and R362 form a 6dB attenuator to provide good VCO drive amplifier isola tion The output attenuator R392 R390 R394 R396 assists in reducing exciter PA interac tion while also ensuring a good match for Q370 Note The exciter provides a DC control signal to
309. ht it may damage the socket when the plug is screwed in N Type Plug and Socket Cross section B x Will damage socket Extended pin position Hand tighten only Figure 4 1 N Type Plug Assembly Details Copyright TEL 23 07 99 F4 2 N Type Connector Assembly M830 00 23 07 99 Copyright TEL M830 00 GI PartG System Configurations This part of the manual is divided into the sections listed below These sections provide some brief information on basic system types and how to configure T830 Series II equip ment for use in them Section T835 Link Selectable Features Flat Or De emphasised Response Mute Relay Control Mute Selection Receiver Disable CTCSS Configuration 300Hz High Pass Filter Audio Processor Links General Audio Processor Linking Details For CTCSS T836 837 Optional Features Audio Processor Link Details Typical Options Line Transformer Inputs And Outputs Opto Key Relay Driver Local Microphone Keying With Option PCBs Talk Through Repeater Line Controlled Base Without Talk Through General Transmitter Tail Timer DC Line Keying Copyright TEL 30 04 98 GII M830 00 Talk Through Repeater Basic Configuration Remote Line Controlled Base Station 4 Wire to 2 Wire Convertor Receiver Disable Time vs Tail Time DC Loop Keying With Common Earth Isolated Constant Current Loop Current Detector Isolated Loop Current Switch Typical
310. ight TEL M830 00 El PartE 1830 VCO PCB Information This part of the manual provides the parts list grid reference index PCB layouts and circuit dia gram for the T830 VCO PCB There is a detailed table of contents at the start of Section 2 T830 VCO PCB 220 01176 03 Copyright TEL 30 04 98 Ell M830 00 30 04 98 Copyright TEL M830 00 Introduction E1 1 1 Introduction PCB Identification All PCBs are identified by a unique 10 digit internal part number IPN e g 220 12345 00 which is screen printed onto the PCB usually on the top side as shown in the example below MET POCZT vi i pa 2P0 01390 2e The last 2 digits of this number define the issue status which starts at 00 and increments through 01 02 03 etc as the PCB is updated Some issue PCBs never reach full production status and are there fore not included in this manual A letter following the 10 digit IPN has no relevance in identifying the PCB for service purposes Note It is important that you identify which issue PCB you are working on so that you can refer to the appropriate set of PCB information Parts Lists The 10 digit numbers 000 00000 00 in this Parts List are internal part numbers IPNs We can process your spare parts orders more efficiently and accurately if you quote the IPN and provide a brief description of the part The components listed in this parts list are divided into two main types those wi
311. igure can cause the device to fail refer to Section 4 5 Copyright TEL 23 07 99 D4 14 T838 839 Fault Finding M830 00 30 04 98 Copyright TEL M830 00 T838 839 PCB Information D5 1 1 5 1838 839 PCB Information 3 Caution This equipment contains CMOS devices which are susceptible to damage from static charges Refer to Section 1 2 in Part A for more information on anti static procedures when handling these devices This section provides the following information on the T838 and T839 power amplifiers e parts lists e grid reference indexes e mechanical assembly drawings e PCB layouts e circuit diagrams Section 51 Introduction 5 2 T838 Power Amplifier PCB 220 01404 03 5 3 T839 Power Amplifier PCB 220 01404 03 The T838 and T839 share the same basic design and are built on the same PCB However in order to simplify the presentation of the PCB information for each product we have provided a separate parts list grid reference index and set of drawings for both the T838 and T839 even though this has meant duplicating some information e g grid reference index and circuit diagrams in each section Copyright TEL 23 07 99 D5 1 2 T838 839 PCB Information M830 00 30 04 98 Copyright TEL M830 00 T838 839 PCB Information D5 1 3 5 1 Introduction Product Tvpe Identification Xou can identifv the PA tvpe bv checking the product code printed on a label on the rear of the heat sink
312. iltered using a notched doublet L410 L420 which provides exceptional image rejection before being amplified by approximately 12dB Q420 The signal is then passed through a further doublet L460 L470 before being presented to the mixer Each sub block within the front end has been designed with 50 ohm terminations for ease of testing and fault finding 23 07 99 Copyright TEL M830 00 T835 Circuit Operation B2 5 2 3 Mixer Refer to the front end circuit diagram sheet 4 in Section 6 and Figure 2 2 IC410 is a high level mixer requiring a local oscillator LO drive level of 17dBm nom inal The voltage controlled oscillator VCO generates a level of 22dBm typical and this is fed to the mixer via a 2dB attenuator pad A diplexer terminates the IF port of the mixer in a good 50 ohms thus preventing unnecessary intermodulation distortion 2 4 IF Circuitry Refer to the IF section circuit diagram sheet 3 in Section 6 and Figure 2 2 Losses in the mixer are made up for in a tuned common gate post mixer amplifier Q310 Several stages of amplification and filtering are employed in the IF circuitry The first crystal filter is a 4 pole device 8 XF310 and amp XF320 which is matched into 50 ohms on both its input and output ports This stage is followed by a two stage amplifier designed as a 50 ohm block and second crystal filter 2 pole amp XF330 after which the signal is mixed down to 455kHz with the second
313. in this manual is the property of Tait Electronics Ltd All rights are reserved This manual may not in whole or part be copied photocopied reproduced translated stored or reduced to any electronic medium or machine readable form without prior written permission from Tait Electronics Ltd Ordering Tait Service Manuals You can order additional copies of this service manual from your nearest Tait Dealer or Customer Service Organisation When ordering make sure you quote the correct Tait product code M number Note that only the latest issue of the manual will be availa ble for order Publication Information T830 Series II Service Manual Publication Date Product Code Incorporates Revision Package April 1998 M830 00 200 August 1999 M830 00 201 R830 00 201 23 07 99 Copyright TEL M830 00 5 Table Of Contents This manual is divided into nine parts as listed below with each part being further sub divided into sections There is a detailed table of contents at the start of each part and or section Copyright TEL 30 04 98 6 M830 00 List Of Effective Pages The total number of pages in this Manual is 44A as listed below Page Issue Date Page Issue Date 1 23 07 99 1 8 23 07 99 2 23 07 99 1 9 23 07 99 3 23 07 99 1 10 23 07 99 4 23 07 99 1 11 23 07 99 5 30 04 98 1 12 23 07 99 6 23 07 99 1 13 23 07 99 7 23 07 99 1 14 30 04 98 blank 8 23 07 99 9 23 07 99 2 1 30 04 98 10 23 07 99 2 2 30
314. ion In this case you should carry out the short tuning procedure described in Section 3 4 If you have carried out repairs or other major adjustments you must carry out the full tuning and adjustment procedure described in this section except for Section 3 4 3 2 Channel Programming You can program up to 128 channel frequencies into the transmitter exciter s EEPROM memory 1C820 by using the PGM800Win software package and an IBMTM PC You can also use PGM800Win to select the transmitter exciter s current operating frequency or default channel If the transmitter exciter is installed in a rack frame you can program it via the pro gramming port in the speaker panel However you can also program the transmitter exciter before it is installed in a rack frame as follows e by using a T800 01 0010 calibration test unit e via D range 1 e via D range 2 standard T800 03 0000 auxiliary D range only e via SK805 internal Micromatch connector If you do not use the T800 01 0010 you will have to connect the PC to the transmitter exciter via a module programming interface such as the T800 01 0004 For a full description of the channel programming procedure refer to the PGM800Win programming software user s manual Note When an auxiliary D range kit D range 2 T800 03 0000 is fitted you can also select a channel with an external switch such as the DIP switch on the rack frame backplane PCB Refer to Part C in the T800
315. irectly to a T800 Series II module It comprises a small PCB on which is mounted a D range socket a programming socket a Micromatch socket and a DC input connector The T800 01 0004 plugs directly into D range 1 or D range 2 selected by a switch on the PCB or into SK805 in the microcontroller compartment via the supplied ribbon cable loom and is then connected to the PC with a T800 01 0002 programming cable Refer to the T800 Ancillarv Equipment Service Manual for more information Copyright TEL 23 07 99 H2 T800 Ancillary Equipment M830 00 General Ancillaries T004 72 RF Coaxial Relay The T004 72 is an RF coaxial relay assembly fitted with three female N type connectors and comes complete with a mounting bracket and two coaxial cables terminated in male N type connectors It can be used for example in base station applications where the receiver and transmitter share the same antenna in which case it can be driven by the T800 Series II transmitter exciter relay driver refer to Section 2 4 in Part G for more information T800 01 0010 Calibration Test Unit The T800 01 0010 provides all inputs and outputs necessary to carry out the full tuning and adjustment procedure for T800 Series I and II receivers exciters and transmitters It provides a convenient method of connecting test equipment including a PC and power supply to a T800 Series I or II module via D range 1 without the need to construct cus tom wiring looms
316. istortion meter e T800 01 0010 calibration test unit optional 40 speaker not needed if the calibration test unit is used Figure 3 1 and Figure 3 2 show RF Signa REN J Receiver typical test equipment set ups Generator with and without a T800 01 0010 mA calibration test unit Audio Signal Meier voltmeter Generator DN ai Line T800 au TE PGM800Win 13 8V PSU Ve Figure 3 1 T835 Test Equipment Set up For Short Tuning Procedure Distortion Sinad Audio 13 8V Meter Meter Voltmeter Oscilloscope PSU KN KI ai Ve _ a Line 5 3 External GND Speaker 283 Modulation Output Audio Signal Generator 40 Speaker Seral eg PDC r zyk interface Or 4Q Resistor ONES PGM800Win Figure 3 2 1835 Test Equipment Set up For Full Tuning Adjustment Procedure 30 04 98 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3 5 3 4 Short Tuning Procedure Use this procedure only if you want to reprogram the receiver to a frequency outside the 3MHz switching range and do not intend to carry out any other major adjustments or repairs 3 4 1 Introduction Reprogram the operating frequency as described in the PGM800Win program ming kit refer to Section 3 2 Remove the top cover nearest the handle Set up the test equipment as described in Section 3 3 Set the links in the audio processor section as required refer to Section 3 5 3 4 2 Svnthesiser Alignment Connect a high impedance voltmeter to PL4 1 or the
317. ivity distortion flat IF coils into each stage audio response see 5 5 2 Check VCO bs I Readjust TCXO Check repair faulty frequency OK frequency stage or component l Y Check IF N y alignment OK Adjust IF coils Y Check distortion Fault in IC350 Check distortion N 1C350 pin 7 N amp XF340 IC340 IG3500in70K injecting 21 4MHz a 8XF330 or p i 47dBm into T B surrounding circuitry y at amp XF330 input OK Check replace Y Fault find audio Inject 21 4MHz after mixer IF N ae output T B ini pee gt Repair stage Measure distortion IE OK stage Y Inject on channel Refer to RF into mixer T B N A OZ y synthesiser Measure distortion N fault finding OK see5 8 8 charts OK Replace TCXO 30 04 98 Copyright TEL M830 00 T835 Fault Finding B5 19 5 7 7 Audio Apply on channel signal Modulated by 1kHz signal with 117dBm to receiver 3kHz 2 4kHz 1 5kHz deviation N Refer to Audio on l receiver fault eset finding chart Audio on N Check components IC210 pin 1 around IC210 Audio at top of RV205 R NM 8 8 RV210 Ensure RV230 gating sensitivity fully clockwise n n Refer to mute laca fault finding charts Audio on Refer to mute C238 C259 fault finding charts Audio on IC240 pin 2 8 A IC260 pin 2 D Audio on Replace C249 amp
318. k inductors present on Q1 VCO2 gt biasing resistors 8 Q1 components around f umj Replace if faulty modulation on VCO uej Trace audio fault still noisy Y Change Q1 still noisy Y Y Change TCXO still noisy Y Y Change varactors still noisy Y Y Replace VCO assembly Y Y Y Synthesiser OK 30 04 98 Copyright TEL M830 00 T836 837 Fault Finding C5 15 5 7 4 1836 Drive Amplifier Kev exciter 8 lock synthesiser 3 5V on Q365 N collector 10 5V on Q315 11V on IC330 10 5V on Q370 collector pin 1 collector Y Y Y Check continuity of power rails 11V on IC330 amp DC paths to pin 8 Q365 amp Q370 y z Y gt 2 2V RF at Check Check 9V 8 l R359 R360 SNEK NGG regulators 13 8V supplies Y Y Check lock det gt 11VRFat N mir oma path back to Check TP308 R360 R3627 as MO synth 10740 gt 8V IC750 Q345 Y Y N Check C362 C365 Check temp ES gt 0368 Q365 D340 shutdown e Cheek TISTA
319. k place after the parts list and dia grams in this section were compiled These changes e g value changes added deleted compo nents etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order The number in brackets at the end of each entry refers to the Tait internal Change Order document IPN of new Change Order component number Parts List Amendments R306 Changed from 1802 to 5602 036 13560 00 to increase sensitivity 71003 circuit reference description or IPN of change 30 04 98 Copyright TEL M830 00 T835 PCB Information B6 1 5 Variant Components A variant component is one that has the same circuit reference but different value or specification in different product types Where two products share the same PCB the term variant is also used to describe components unplaced in one product Variant components have a character prefix such as ge or before the circuit reference e g amp R100 The table below explains the variant prefixes used in T 800 Series II products If the variant prefix is the component will change according to channel spacing change according to frequency stability change according to frequency range be placed or unplaced for special applications be unplaced in one product where two products share the same PCB
320. k pre emphasis modulate N network IC230 pins 12 i 13 8 14 amp or low pass i filter IC260 pins 1 2 amp 3 IC240 pine Y ae 2 r y BLO former amp multiplexer N Audio processor d OK Check Q260 is not faulty or being turned on inadvertently Copyright TEL 30 04 98 M830 00 T836 837 Fault Finding C5 19 To Replace The T836 PA Transistors Q415 8 Q425 A Caution Failure to comply with the following procedure can result in failure of the device due to poor heatsinking or worse can endanger the health of the assembler if the beryllium oxide die carrier is smashed during assembly 4 Caution As the location of certain components in the PA is critical to perform ance it is important that anv components removed or disturbed are refitted in exactly the same position Caution Before attempting to remove a transistor note the position type and value of each capacitor and resistor so that it can be replaced in exactly the same position refer to Figure 5 2 A Caution Do not apply too much heat or pressure to the PCB pads and tracks as you may damage them or lift them from the PCB causing permanent damage to the transmitter Remove the resistors and or chip capacitors from around the transistor Desolder the transistor tabs by heating with a soldering iron and lifting away from the PCB with a screwdriver or thi
321. k replace LED toggle Q255 amp D250 23 07 99 Copyright TEL M830 00 T835 Fault Finding B5 17 5 7 5 Carrier Mute Ensure PL250 is set for carrier mute operation and the RSSI PCB is fitted Y Apply on channel signal 95dBm to receiver 3kHz 2 4kHz t N Audio on IC350 pin 7 Y gt N Approx 3 3V on IC350 pin 5 Y Y receiver fault Modulated by 1kHz signal with 1 5kHz deviation Refer to finding chart Check for short circuits and or replace IC350 Rotate RV235 carrier mute c w amp cc w amp view Gate LED Y Does Gate LED Switch SW201 monitor mute to ensure mute is enabled Y Check Q230 Q245 8 Q290 for operation OK 14 Y Mutable audio on outputs KN Refer to audio fault finding chart Note c w clockwise cc w counterclockwise or anticlockwise toggle on off yA Approx 5V on RSSI pad 238 y Approx 5V on IC280 pin 12 Y Y Adjust RV235 8 observe voltage on 1C280 pin 6 Y Voltage varies 0 6V N y Set RF signal level to 95dBm Rotate RV235 c w 8 cc w c _ adjoining components Check IC390 and
322. ler or Cus tomer Service Organisation for more information Frequency Range MHz 136 156 Deviation kHz 25 2 5ppm 30 C to 60 C e Exciter Type T837 16 0000 15 0000 13 0000 10 0000 Frequency Range MHz 148 174 Deviation kHz 2 5 2 5ppm 30 C to 60 C e Exciter Type T837 26 0000 25 0000 23 0000 20 0000 a A TCXO with a stability of 1ppm 0 C to 60 C is available to suit specific requirements Contact your nearest authorised Tait Dealer or Customer Service Organisation for further details b United States market only You can identify the exciter type by checking the product code printed on a label on the rear of the chassis Figure 1 1 in Part A shows typical labels You can further verify the exciter type by checking the placement of an SMD resistor in the table that is screen printed onto the PCB refer to Section 6 1 for more details Copyright TEL 23 07 99 C1 16 T836 837 General Information M830 00 30 04 98 Copyright TEL M830 00 T836 837 Circuit Operation C2 1 2 T836 837 Circuit Operation This section provides a basic description of the circuit operation of the T836 transmitter and T837 exciter Note Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Section 6 where the parts lists grid reference index and diagrams will provide det
323. lt The recommended values can be obtained from either the circuit diagram or the component data catalogue 5 3 Front Panel LED Indicator The green Supply LED on the receiver front panel will flash according to the condi tions described in the following table Flash Rate Condition a sec on Ys sec off receiver is linked with approx PGM800Win 1 sec on 1 sec off VCO is out of lock approx refer to Section 5 4 2 14 sec on 1 sec off microcontroller has detected an approx internal communications error refer to Section 5 7 1 Where two or more conditions occur at the same time the precedence is in the order shown above i e receiver linked has the highest priority followed by VCO error then internal error Copyright TEL 30 04 98 B5 4 T835 Fault Finding M830 00 5 4 DC Checks 5 4 1 Power Rails Refer to the test points amp options diagrams in Section 6 for test point locations and to the regulator fault finding chart Section 5 7 2 for fault diagnosis Check the 9V TP602 and 13 8V TP601 power supply test points in the regulator compartment with a DMM Check the 20V regulator output at the test point TP603 in the regulator compart ment Check the 5V regulator output at the test point TP604 in the regulator compart ment and on IC350 pin 4 Check the 5V digital regulator output at the junction of C611A and IC610 pin 2 in the regulator compartment 5 4 2 VC
324. mation C6 3 5 Ref Var IPN Description Ref Var IPN Description C830 015 25470 08 CAP CER 0805 47N 10 X7R 50V Q610 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF C838 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Q620 000 00012 15 S XSTR BD234 PNP AF PWR TO126 C841 020 09100 04 CAP ELE RA 100M 10V 6 3X9MM Q630 000 50011 30 S XSTR Al BC557B PNP TO92 AF 0844 015 25100 08 CAP CER 0805 10N 10 X7R 50V Q660 000 10008 17 S XSTR SMD BC817 25 NPN SOT23 C910 015 02120 06 CAP CER 1210 12P NPO500VGRM42 Q670 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS C920 015 02270 06 CAP CER 1210 27P NPO500VGRM42 Q710 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS C930 015 02120 06 CAP CER 1210 12P NPO500VGRM42 Q720 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS Q730 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D111 001 00011 60 S DIODE SR2607 USE MR750 Q740 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D220 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q750 000 10008 07 S XSTR SMD BC807 PNP SOT23 AF D230 001 00010 40 S DIODE ZENER 33V 1 3W Q760 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D240 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q770 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D250 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q775 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D260 001 10000 56 S DIODE SMD BAW56 D SW SOT23 Q780 000 10008 48 S XSTR SMD BCW60 NPN SOT23 SS D270 001 10000 99 S DIODE SMD BAV99 D SW SOT23 Q785 000 10008 57 S XSTR SMD BCW70 PNP SOT23 SS D340 001 10000 18 S DIODE SM
325. mation D5 1 5 Parts List Amendments At the front of the parts list is the Parts List Amendments box an example of which is shown below This box contains a list of component changes which took place after the parts list and dia grams in this section were compiled These changes e g value changes added deleted compo nents etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order The number in brackets at the end of each entry refers to the Tait internal Change Order document IPN of new Change Order component number Parts List Amendments R306 Changed from 1802 to 560 036 13560 00 to increase sensitivity 71003 circuit reference description or IPN of change Variant Components A variant component is one that has the same circuit reference but different value or specification in different product types Where two products share the same PCB the term variant is also used to describe components unplaced in one product Variant components have a character prefix such as ge or before the circuit reference e g amp R100 The table below explains the variant prefixes used in T800 Series II products If the variant prefix is the component will change according to channel spacing change according to frequency stability change according to frequency ra
326. mation M830 00 1 2 4 3 Mute Operation Systems Available noise mute and carrier mute Noise Mute Operating Range 6 20dB sinad Hysteresis 1 5 to 6dB Threshold adjustable to 105dBm Opening Time 20ms Closing Time 50ms Carrier Mute Optional Operating Range 115 to 80dBm Hysteresis 2 to 10dB Opening Time BMS Closing Time 50ms Note The opening and closing times given above are for the standard set up SL210 linked and SL220 not linked refer to Section 3 8 1 2 5 Microcontroller Auxiliary Ports Open Drain Type capable of sinking 2 25mA via 2k20 Vas max sk BW 1 2 6 Test Standards Where applicable this equipment is tested in accordance with the following standards 1 2 6 1 European Telecommunication Standard ETS 300 086 January 1991 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment with an internal or external RF connector intended pri marily for analogue speech ETS 300 113 March 1996 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment intended for the transmission of data and speech and having an antenna connector ETS 300 219 October 1993 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment transmitting signals to initiate a specific response in the receiver 23 07 99 Co
327. may differ slightly from this illustration due to variations in manufacturing techniques star shaped recess with six internal notches Figure 2 1 Torx Screw Identification Copyright TEL 30 04 98 A2 2 Mechanical M830 00 2 2 Pozidriv 8 Philips Recess Head Screws Pozidriv and Philips recess head screws will continue to be used in T800 Series II equip ment in a few special applications It is important that you use the correct type and size screwdriver for each screw type to avoid damaging the screw head It is particularly important that you do not use Philips screwdrivers on Pozidriv screw heads as the tapered driving flutes of the Philips screwdriver do not engage correctly with the parallel sided slots in the Pozidriv screw head This can result in considerable damage to the screw head if the screwdriver tip turns inside the recess Note If you find you need excessive downwards pressure to keep the screwdriver tip in the Pozidriv screw head you are probably using the wrong type and or size screwdriver Figure 2 2 below shows the main differences between typical Pozidriv and Philips screw heads and screwdriver tips actual hardware may differ slightly from these illustrations due to variations in manufacturing techniques Pozidriv Philips internal notches no special markings star markings between slots slots with parallel sides slots with tapered sides UN driving flutes with parallel sides driving flut
328. mounting screws T800 41 0003 The T800 41 0003 rack frame guide is designed to fit into a T800 Series II rack frame and will accept three T800 Series II modules except for power supplies and power amplifi ers which must use their own guides It is supplied disassembled and comprises three top and bottom rails a triple width rear panel six D range sockets and mounting screws T800 41 0004 The T800 41 0004 rack frame guide is designed to fit into a T800 Series II rack frame and will accept four T800 Series II modules except for power supplies and power amplifiers which must use their own guides It is supplied disassembled and comprises four top and bottom rails a four module wide rear panel eight D range sockets and mounting screws T800 42 0000 The T800 42 0000 rack frame guide will allow a duplexer to be mounted in a T800 Series II rack frame It occupies a single module space and comprises a folded metal chassis mounting brackets and screws Copyright TEL 23 07 99 H10 T800 Ancillary Equipment M830 00 T800 42 0001 The T800 42 0001 rack frame guide is the same as the T800 42 0000 described above but with the addition of a duplexer front panel T800 42 0002 The T800 42 0002 rack frame guide is the same as the T800 42 0000 described above but with the addition of a blank front panel T800 43 0000 The T800 43 0000 rack frame guide is designed to fit into a T800 Series II rack frame and will accept one T300
329. n Section 220 011395 02 Parts List 6 2 3 Mechanical amp Miscellaneous Parts 6 2 8 Mechanical Assembly 6 2 9 Grid Reference Index 6 2 11 PCB Layout Top Side 6 2 15 PCB Layout Bottom Side 6 2 16 Test Points amp Options Connections Top amp Bottom Side 6 2 17 Transmitter Overview Diagram 6 2 18 Audio Processor Circuit Diagram 6 2 19 Exciter Circuit Diagram 6 2 20 PA Circuit Diagram 6 2 21 VCO Section Circuit Diagram 6 2 22 Regulators Circuit Diagram 6 2 23 Synthesiser Circuit Diagram 6 2 24 Microcontroller Circuit Diagram 6 2 25 Harmonic Filter Circuit Diagram 6 2 26 Copyright TEL 30 04 98 C6 2 2 T836 PCB Information M830 00 30 04 98 Copyright TEL M830 00 IPN 220 01395 02 T836 PCB Information C6 2 3 1836 Parts List IPN 220 01395 02 How To Use This Parts List The components listed in this parts list are divided into two main types those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A number in the variant col umn indicates that this is a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The miscellan
330. n given in the parts list or diagrams Components without circuit references are listed in IPN order The number in brackets at the end of each entry refers to the Tait internal Change Order document IPN of new Change Order component number Parts List Amendments R306 Changed from 1802 to 5602 036 13560 00 to increase sensitivity 71003 circuit reference description or IPN of change 30 04 98 Copyright TEL M830 00 T836 837 PCB Information C6 1 5 Variant Components A variant component is one that has the same circuit reference but different value or specification in different product types Where two products share the same PCB the term variant is also used to describe components unplaced in one product Variant components have a character prefix such as ge or before the circuit reference e g amp R100 The table below explains the variant prefixes used in T800 Series II products If the variant prefix is the component will change according to channel spacing change according to frequency stability change according to frequency range be placed or unplaced for special applications be unplaced in one product where two products share the same PCB Grid Reference Index This section contains a component grid reference index to help you find components and labelled pads on the PCB layouts and circuit diagrams This index lists the components and pads in alpha
331. n Section 6 5V Digital Regulator Watchdog Timer 8 LVI Watchdog Microcontroller Cavitv r f p 4 a5 Channel i A i ort Ia a Microcontroller Auxiliary Output i l Port i External i I Serial lt gt Converter i Port I Audio In i Speech lt Figure 2 5 T835 Microcontroller Block Diagram Overall system control of the T835 is accomplished by the use of a member of the 80C51 family of microcontrollers IC810 which runs from internal ROM and RAM Four ports are available for input output functions Non volatile data storage is achieved by serial communication with a 16kBit EEPROM IC820 This serial bus is also used by the microcontroller to program the svnthesiser IC740 The main tasks of the microcontroller are as follows e program the synthesiser e interface with the PGM800Win programming software at 9600 baud via the serial communication lines on D range 1 PL100 amp D range 2 e monitor channel change inputs from D range 2 e generate timing waveforms for CTCSS detection e coordinate and implement timing control of the receiver e control the front panel Supply LED refer to Section 5 3 Copyright TEL 23 07 99 B2 10 T835 Circuit Operation M830 00 2 10 Svnthesised Local Oscillator Refer to the svnthesiser circuit diagram sheet 7 in Section
332. n indicates their position in the mechanical assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments 80269 C289 16710 L360 L365 L385 R221 R239 R235 R545 R290 R304 R332 R364 R372 R368 R677 R713 RV220 303 11169 03 312 01052 01 312 01053 01 362 00010 08 T837 16 0000 837 26 0000 changed from 1p5 IPN 015 21150 01 to 4p7 IPN 015 21470 01 for FCC Type Approval requirements 710655 T837 16 0000 837 26 0000 changed from 47n IPN 015 25470 08 to 68n IPN 015 25680 08 for FCC Type Approval requirements 710655 Changed from 74HCV04 IPN 002 74910 04 to 74HC04 IPN 002 74900 04 to increase the gain of the TCXO buffer 710312 Changed from 3 5T 4 0mm 052 08140 35 to 3 5T 3 5mm 052 08135 35 Changed from 1 5T 3 0 IPN 052 08130 15 to 1 5T 3 5 IPN 052 08135 15 to improve power output evenly at the top and bottom of the 136 174MHz frequency range 710333 136 156MHz 10 13 8 15 changed from 3 5T 4 0 052 08140 35 to 3 5T 4 5 IPN 052 08145 35 to improve the output power 710332 To improve power at 174MHz 710
333. n stainless steel spike Unscrew the transis tor stud nut and remove the device Remove any excess solder from the PCB pads with solder wick Trim the tabs of the replacement transistor so that the device sits neatly on the PCB pads provided Lightly tin the underside of the transistor tabs Remove any excess solder to leave a thin even layer on the tabs Apply a small amount of heatsink compound Dow Corning 340 or equivalent to the transistor mounting surface Sufficient compound should be used to ensure an even film over the entire mounting surface Place the transistor on the PCB in the correct orientation and ensure the tabs are flush to the surface Lightly solder one tab to the PCB Torque down the retaining nut to the correct torque 0 7Nm 6in lbf A Caution Do not solder all the tabs before torquing down otherwise the device may be broken Copyright TEL 23 07 99 C5 20 T836 837 Fault Finding M830 00 Solder all transistor tabs to the PCB Replace each resistor and or capacitor in exactly the same position as noted previ ously C442 R435 R420 MT gt o Se OFE Ln a nm Q425 C421 Q415 Figure 5 2 Positioning Of Components Around Q425 amp Q415 23 07 99 Copyright TEL M830 00 T836 837 PCB Information C6 1 1 6 1836 837 PCB Information 3 Caution This equipment contains CMOS devices which are susceptible to damage from static charges Refer to Section 1 2 in Part A for more inform
334. nal tvpe of thermistor assemblv Note as the epoxv used mav give off fumes that will cause eve irritation If necessary replace this device as a complete assembly see note 1 below Desolder the module and thermistor legs by heating with a soldering iron and lifting away from the PCB with a screwdriver or thin stainless steel spike Undo the module screws and remove the thermistor assembly Desolder and remove both earth tags Gently lift the module away from the heatsink The module may be stuck down quite firmly with heatsink compound You may need to carefully prise it away from the heatsink with a small screw driver Keep the heatsink compound clean while the module is detached Apply a small amount of heatsink compound Dow Corning 340 or equivalent to the replacement module mounting surface Use enough compound to ensure an even film over the entire mounting surface Reposition the module in the correct orientation and ensure it is well pasted to the heatsink Replace the earth tags and thermistor assembly in their original positions and hand tighten the screws ensuring the tags and thermistor remain in place Alter nately tighten each screw evenly finally torquing them down to 56N cm 5in lbf with an accurate torque driver Caution It is essential that you apply the correct torque to these screws to allow the module flange to expand and contract under temperature cycling Also do not solder any module legs before
335. ncy Reference Rack Frames Rack Frame Guides Rack Frame PCBs Rack Frame Ancillaries Front Panels Power Supplies Copyright TEL 23 07 99 HII M830 00 30 04 98 Copyright TEL M830 00 T800 Ancillary Equipment H1 T800 Ancillary Equipment Programming Kits T800 01 0000 The T800 01 0000 kit is used for programming T800 Series II base station equipment using a standard IBM or compatible PC The kit comprises the following items PGM800Win programming software user s manual PGM800Win Windows based programming software on 3 floppy discs T800 01 0002 programming cable T800 01 0001 The T800 01 0001 kit is the same as the T800 01 0000 kit described above but with the addition of the T800 01 0004 module programming interface T800 01 0002 The T800 01 0002 programming cable connects the PC directly to the programming socket on the T800 Series II rack frame speaker panel or backplane PCB thus enabling T800 Series II modules to be read or programmed while in the rack frame It can also connect to the programming socket on the T800 01 0004 programming module interface if the module is to be read or programmed while out of the rack frame T800 01 0003 The T800 01 0003 programming kit contains a T800 01 0002 programming cable and a T800 01 0004 programming module interface T800 01 0004 The T800 01 0004 programming module interface is designed to allow a PC to connect d
336. ne transformer T210 is designed to provide a balanced interface to 600 ohm lines For normal operation the two centre connections LINE I P 2 LINE I P 3 are shorted together and the 600 ohm line is connected between LINE I P 1 and LINE I P 4 The secondary winding of the transformer is connected via 1k and 10Q R160 resistors to pin 6 AUDIO 2 of D range 1 and may be used to monitor audio on the line Pin 7 of D range 1 can be reconfigured as AUDIO 1 by removing R808 and R160 and placing R150 refer to Section 2 in Part I for more details 2 3 Opto Key The keying circuitry may be completely isolated from the rest of the system by means of the optocoupler IC250 connected between pins 11 and 12 of the D range connector A constant current source Q270 allows keying voltages between 6 and 50V 2 4 Relay Driver A dedicated transistor Q250 is provided for the purpose of switching an external e g coaxial relay The output is open collector and is activated by the Tx reg rail This out put is available on pin 9 of the T800 03 0000 auxiliary D range connector D range 2 30 04 98 Copyright TEL M830 00 T836 837 Optional Features G2 3 2 5 Local Microphone Use of the local microphone via the front panel stereo socket will disable the audio input from the line The audio switching occurs when the PTT switch is closed 2 6 Keying With Option PCBs If an option PCB is fitted the exciter may be keyed via the TX ENB OPT p
337. nel RF signal with 3kHz deviation 2 4kHz 1 5kHz at 1kHz into the antenna socket and adjust front end doublets L410 L420 L460 amp L470 to give best sinad 23 07 99 Copyright TEL M830 00 T835 Initial Tuning amp Adjustment B3 11 Note Note Continually decrease the RF level to maintain 12dB sinad Roughly tune IF coils L330 L340 L350 CV318 and quad coil L360 for best sinad While maintaining a low level unmodulated RF input to the receiver loosely cou ple into the first IF an additional high level signal at 21 4MHz you will hear a beat note Trim the synthesiser TCXO 1C700 for zero beat If a second oscillator is not available you can connect a frequency counter to IC710 pin 8 i e after the TCXO buffer via an oscilloscope probe to measure the TCXO frequency directly 12 8MHz At this point the voltage level is approximately 4V p p Readjust L410 L420 L460 amp L470 to give best sinad Change the RF signal level to 75dBm and modulate with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Connect an oscilloscope probe to the RSSI test point TP310 and connect plugs PL210 and PL220 to give a flat audio response refer to Section 3 5 Readjust IF coils L330 L340 L350 CV318 and quad coil L360 to give a maximum amplitude response on the oscilloscope with minimal amplitude modulation If you would like a more accurate method of tuning the IF refer to the sweep tuning method described in Section 5
338. nge be placed or unplaced for special applications be unplaced in one product where two products share the same PCB Copyright TEL 30 04 98 D5 1 6 T838 839 PCB Information M830 00 Grid Reference Index This section contains a component grid reference index to help vou find components and labelled pads on the PCB layouts and circuit diagrams This index lists the components and pads in alpha numeric order along with the appropriate alphanumeric grid references as shown below PCB layout components listed reference in alphanumeric order circuit diagram reference Device PCB Circuit C126 2 A6 2 R7 C127 1 A8 2 P4 C128 2 B7 2 P2 C129 2012 2 63 8C130 2 D8 2 B8 C131 2 09 2 H6 C132 2 D8 2 B8 C133 2 D6 ZET head component location on the sheet sheet number component location on the layer layer number 1 top side layer 2 bottom side layer Using CAD Circuit Diagrams Reading a CAD circuit diagram is similar to reading a road map in that both have an alphanumeric border The circuit diagrams in this manual use letters to represent the horizontal axis and num bers for the vertical axis These circuit diagram grid references are useful in following a circuit that is spread over two or more sheets When a line representing part of the circuitry is discontinued a reference will be given at the end of the line to indicate where the rest of the circuitry is located as shown below The
339. nked individually or cascaded between either or both audio inputs and the limiter Refer to Section 3 5 1 for linking details 2 5 2 Audio Inputs Two audio inputs are available one from a 600 ohm balanced or unbalanced line and the other from a local microphone The microphone signal is passed first to a pre ampli fier Q210 and ultimatelv to a multiplexer IC240 but in between may pass through the compressor depending on the linking details The line transformer is also con nected to the multiplexer and is disabled by the microphone PTT switch A third input for external CTCSS tones is also provided 23 07 99 Copyright TEL M830 00 T836 837 Circuit Operation C2 9 2 5 3 Keying Inputs There are four ways to key the exciter e pulling the Tx Key line low pin 13 on D range 1 PL100 at the rear of the set e pushing the Carrier button on the front panel this will inhibit all audio e using the PTT button on the local microphone disabling audio from the line e via the opto key inputs pins 11 and 12 on D range 1 PL100 when electrical isolation is required This features a constant current sink Q270 to ensure reli able activation of the opto coupler IC250 at low keying voltages 2 5 4 Compressor Automatic Level Control ALC The input signal is fed via a current controlled attenuator Q230 Q220 to a high gain stage IC230 from which the output signal is taken This signal is passed to a compara tor
340. nter Check VCO Signal Is the level gt 10dBm Does the frequency adjust as the VCO trimmer is adjusted out of lock Y Replace synthesiser 10740 Check C772 R774 R772 C770 R763 8 Q790 Check divider buffer circuit Q795 and bias voltages on Q795 emitter 1 3V 0 2V Programming and serial bus OK2 Replace svnthesiser IC740 __ Is reference clock present at IC740 pin 20 200kHz gt 4 5Vpp Check phase modulator sections IC720 Q710 Q720 D710 Q730 Q740 N Is reference clock present at IC730 pin 12 200kHz gt 4 5Vpp When locked both of these are very narrow 50ns If unlocked one will be very narrow 50ns and the other wide gt 15us D720 N Is reference Check divider clock present IC730 at IC730 pin 1 12 8MHz gt 4 0Vpp N Check TCXO IC700 and buffers 10710 Note Copyright TEL 30 04 98 C5 14 T836 837 Fault Finding M830 00 G Noisy synth poor residual FM VCO phase locked N control line Y Correct DC V Y Loop filter amp N op amp IC750 OK Y Isolate audio N still noisv2 Y Change trimmer 5 13V presenton gt Goto B Chec
341. numeric order along with the appropriate alphanumeric grid references as shown below PCB layout components listed reference in alphanumeric order circuit diagram reference Device PCB Circuit C126 2 A6 2 R7 C127 1 A8 2 P4 C128 2 B7 2 P2 0129 26122 ES 80130 2 08 2 B8 C131 2 09 2 H6 C132 2 D8 2 B8 C133 2 D6 E component location on the sheet sheet number component location on the layer layer number 1 top side layer 2 bottom side layer Copyright TEL 30 04 98 C6 1 6 T836 837 PCB Information M830 00 Using CAD Circuit Diagrams Reading a CAD circuit diagram is similar to reading a road map in that both have an alphanumeric border The circuit diagrams in this manual use letters to represent the horizontal axis and num bers for the vertical axis These circuit diagram grid references are useful in following a circuit that is spread over two or more sheets When a line representing part of the circuitry is discontinued a reference will be given at the end of the line to indicate where the rest of the circuitry is located as shown below The first digit refers to the sheet number and the last two characters refer to the location on that sheet of the continuation of the circuit e g 1R3 these grid references show where the circuit is continued 30 04 98 Coppright TEL M830 00 T836 PCB Information C6 2 1 6 2 T836 Transmitter PCB This section contains the following informatio
342. o a line trans former to provide a balanced 2 wire or 4 wire 600 ohm output The speaker volume is set using the front panel Monitor Volume knob RV205 and the line level is set using the recessed Line Level potentiometer RV210 The red front panel Gate LED D250 indicates the status of the mute circuit When a signal above the mute threshold is received the LED is illuminated The Monitor Mute switch SW201 on the front panel opens the mute allowing continuous monitor ing of the audio signal on audio muted off audio unmuted The mute control line is available on pad 234 RX GATE OUT for control of external circuitry A high 9V on pad 234 indicates that the audio is disabled and a low 0V indicates that a signal above the mute threshold level is being received Copyright TEL 30 04 98 B2 8 T835 Circuit Operation M830 00 The audio can also be disabled using the RX DISABLE inputs pads 225 or 228 having connected the RX DISABLE link between pins 1 amp 2 of PL260 An adjustable time delav RV220 is provided on these lines In order to disable the audio either pad must be pulled to OV refer to Section 1 4 in Part G An undedicated relav is provided RL210 for transmitter keving or other functions and this can be operated from the mute line bv linking PL270 2 8 Power Supplv And Regulators Refer to the regulators circuit diagram sheet 6 in Section 6
343. ocedure If vou still cannot trace the fault after progressing through them in a logical manner contact your nearest Tait Dealer or Customer Service Organisation If necessary you can get additional technical help from Customer Support Radio Systems Division Tait Elec tronics Ltd Christchurch New Zealand full contact details are on page 2 Refer to Section 5 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components The following topics are covered in this section Section Visual Checks DC Checks RF Checks Fault Finding Charts T838 PA T839 PA Power Control Fan Control Circuitry Replacing RF Power Modules Removing The PCB From The Heatsink 4 1 Positioning Of Test Leads 4 6 Copyright TEL 23 07 99 D4 2 T838 839 Fault Finding M830 00 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 3 4 1 Visual Checks Remove the side cover from the T838 839 and inspect the PCB for damaged or broken components paying particular attention to the surface mounted devices SMDs Also check for defective solder joints Refer to Section 4 5 Section 4 6 and Section 3 of Part A for more details on repair and replacement of components 4 2 DC Checks Check that 13 8V is present on pin 3 of IC202 and or IC201 Make this meas urement when the transmitter is not keyed Check that approximately 6 13V is
344. oduct as follows T83X XX XXXX T835 receiver T836 25W transmitter T837 exciter T838 50W power amplifier T839 100W power amplifier Type The Type group uses two digits to indicate the basic RF configuration of the product The first digit in the Type group designates the frequency range T83X XX XXXX 1 for 136 156MHz 2 for 148 174MHz The second digit in the Tvpe group indicates the channel spacing T83X XX XXXX O for wide bandwidth 25kHz 3 for mid bandwidth 20kHz 5 for narrow bandwidth 12 5kHz Options T83X XX XXXX The Options group uses four digits and or letters to indicate any options that may be fitted to the product This includes standard options and special options for specific customers 0000 indicates a standard Tait product with no options fitted The large number of options precludes listing them here Copyright TEL 23 07 99 D1 10 T838 839 General Information M830 00 1 4 Standard Product Range The following table lists the range of standard T838 and T839 types i e no options fit ted available at the time this manual was published Consult vour nearest Tait Dealer or Customer Service Organisation for more information Output Power W 50 100 Frequency Range MHz 136 156 148 174 136 156 148 174 PA Type T838 10 0000 20 0000 ol PA Type T839 L I 10 0000 20 0000 You can identify the PA type by checking the product code printed on a label on the rear of the h
345. on There are no user serviceable components in these power amplifiers Refer all servicing to your nearest Tait Dealer or Customer Service Organisation This part of the manual is divided into five sections as listed below There is a detailed table of contents at the start of each section Section Title General Information Circuit Operation Initial Adjustment Fault Finding PCB Information Copyright TEL 23 07 99 DII M830 00 30 04 98 Copyright TEL M830 00 T838 839 General Information D1 1 1 1838 839 General Information This section provides a brief description of the T838 839 PA along with detailed specifi cations and a list of types available The following topics are covered in this section Section Introduction Specifications Introduction General Test Standards European Telecommunication Standard ETS DTI CEPT Recommendation T R 24 01 Telecommunications Industry Association Product Codes Standard Product Range Title T838 839 Main Circuit Block Identification T838 839 Front Panel Controls Copyright TEL 30 04 98 D1 2 T838 839 General Information M830 00 30 04 98 Copyright TEL M830 00 T838 839 General Information D1 3 replace A4 pages D1 3 D1 4 with A3 pages D1 3 D1 4 Copyright TEL 30 04 98 D1 4 T838 839 General Information M830 00 replace A4 pages D1 3 D1 4 with A3 pages D1 3 D1 4 30 04 98 Copyright
346. on for a short time after the Tx Reg supply has been switched off This is to allow the RF power circuits both exciter and PA to ramp down in the correct manner before the VCO is switched off Copyright TEL 30 04 98 C2 8 T836 837 Circuit Operation M830 00 2 5 Audio Processor Refer to the audio processor circuit diagram sheet 2 in Section 6 2 or 6 3 Carrier j Opto coupler Opto Key A y kl Tx Enable e Constant Current Sink Tx Key e Link Pr the o 6 5 e i gt l gt i Z S Limiter icrophone PL215 re amp A link a Output Compressor Microphone O I b EE mie Inhibit PS Set Deviation pu l PL205 6 Link 5 Digital Pot EPOT 2 5 4 N lt 3 a 2 2 gt M lt O gt L lt PL210 4 E CTCSS Line Input i ES line Pre emphasis 3 Link 4 Multiplexer J EH Rz jie EA Audio 1 Audio 2 PL220 l PS Ref Mod Adjust Digital Pot EPOT Buffer P Integrator m Output Ref ToVCO Mod Figure 2 6 T836 837 Audio Processor Block Diagram 2 5 1 General The audio processor comprises several link selectable circuit blocks which may be con figured in a variety of combinations to suit individual requirements The pre emphasis network and compressor may be li
347. onal Testing C4 3 4 1 Current Consumption Connect the T836 837 to a 13 8V power supply Connect an RF power meter to the T836 837 output socket Check that the current in the 13 8V power cable is less than 150mA Key the T836 837 by earthing the Tx Key line the carrier On LED should light T836 Only Adjust RV320 power adjust to obtain 25W output power Check that the current is as follows T836 lt 4 5A T837 lt 600mA 4 2 Output Power Connect an RF power meter to the T836 837 output socket Key the T836 837 by earthing the Tx Key line Check that T836 the output power adjusts to gt 30W with RV320 power adjust turned fully clockwise T837 the output power is 800mW 200mW 4 3 Output Frequency Connect the T836 837 output to a frequency counter via an attenuator pad T836 40dB pad T837 20dB pad Measure the output frequency and if necessary adjust the TCXO IC700 to trim to the nominal frequency 100H2 4 4 Timers The transmit tail timer transmit timeout timer and transmit lockout timer can all be set from PGM800Win The fields for setting these are found on the system information page These three timers operate as follows refer also to Figure 4 1 Copyright TEL 23 07 99 C4 4 T836 837 Functional Testing M830 00 Function Adjustment Transmit Tail Sets the tail time during which the 0 5 seconds in 100ms transmitter stays keyed after the exter steps nal key source has been remov
348. ons Conducted 90dBm to 4GHz Radiated 57dBm to 1GHz 47dBm to 4GHz 23 07 99 Copyright TEL M830 00 T835 General Information B1 9 1 2 4 Audio Section 1 2 4 1 General Outputs Available Frequency Response Flat Response Bandwidth Response De emphasised Response Bandwidth Response Line Output Power Load Impedance Distortion 70dBm signal level Wide Bandwidth Mid amp Narrow Bandwidth Monitor Output Power Speaker Impedance Distortion line and monitor flat or de emphasised 750ps link selectable 67 to 3400Hz within 1 2dB of output level at 1kHz 300 to 3400Hz within 1 3dB of a 6dB octave de emphasis characteristic ref 1kHz adjustable to gt 10dBm 600 ohms De emphasised Flat lt 2 lt 2 lt 2 lt 4 1W 4ohms lt 3 70dBm signal level links set to de emphasis 1 2 4 2 CTCSS Linkable High Pass Filter Bandwidth Response Hum And Noise 1kHz at 60 system deviation CTCSS at 10 system deviation Tone Detect Tone Squelch Opening Tone Detect Bandwidth Response Time 350 to 3400Hz within 1 3dB of level at 1kHz 30dB min at 250 3Hz 35dB typical 67 to 240Hz better than 6dB sinad 3dB sinad at 250 3Hz typical 4dB sinad at 100Hz typical 2 1Hz accept typical 3 0Hz reject typical 150ms open and close typical Copyright TEL 23 07 99 B1 10 T835 General Infor
349. or T1500 Series module e g T318 02 T1511 It is supplied disas sembled and comprises a top and bottom rail two T300 D range socket boxes and mounting screws The T800 43 0000 is not compatible with the T800 Series II rack frame backplane PCB Consult your nearest Tait Dealer or Customer Service Organisation for more details about T300 T1500 Series compatibility with T800 Series II rack frames T800 43 0001 The T800 43 0001 is the same as the T800 43 0000 but is supplied with only one D range socket box T800 44 0000 The T800 44 0000 rack frame guide is designed to fit into a T800 Series II rack frame and will accept one T800 Series II power supply It comprises a top and bottom rail and mounting screws T800 45 0000 The T800 45 0000 rack frame guide is designed to fit into a T800 Series II rack frame and will accept one T800 Series II 50W power amplifier It comprises a top guide stop a bot tom guide rail and mounting screws T800 45 0001 The T800 45 0001 rack frame guide is designed to fit into a T800 Series II rack frame and will accept one T800 Series II 100W power amplifier It comprises a top guide stop a bottom guide rail extra mounting brackets for the double width front panel and mount ing screws 23 07 99 Copyright TEL M830 00 T800 Ancillary Equipment H11 Rack Frame PCBs T800 50 0000 The T800 50 0000 backplane PCB is designed to allow a T800 22 0000 rack frame to be easily configured as either a bas
350. otection crowbar diode 1 dBi denotes the level of the intermodulation product relative to the interfering signal 23 07 99 Copyright TEL M830 00 T838 839 General Information D1 7 Supplv Current Standbv 50mA Transmit T838 YA 9A typical 156MHz T839 19A 15A typical 156MHz Spurious Emissions Conducted Transmit 36dBm to 1GHz 30dBm to 4GHz Standby 57dBm to 1GHz 47dBm to 4GHz Radiated Transmit 86dBm to 1GHz 30dBm to 4GHz Standby 57dBm to 1GHz 47dBm to 4GHz Operating Temperature Range 30 C to 60 C Dimensions Height 183mm Width T838 60mm T839 120mm Length 340mm Weight T838 3 2kg T839 34kg 1 2 3 Test Standards Where applicable this equipment is tested in accordance with the following standards 1 2 3 1 European Telecommunication Standard ETS 300 086 January 1991 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment with an internal or external RF connector intended pri marily for analogue speech ETS 300 113 March 1996 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment intended for the transmission of data and speech and having an antenna connector ETS 300 219 October 1993 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment transmittin
351. overs Chassis Top View Rear View 4 holes in rear panel loom channel in groove in top of rear wall Top Cover provision for mounting speaker future development ridge on top of rear wall a a a J paa AA COT Bottom Cover DO additional walls et oe Or A A a a a a a ee Figure 2 3 Identification Of New Design Chassis amp Covers 23 07 99 Copyright TEL M830 00 Component Replacement A3 1 3 Component Replacement 3 1 Leaded Components Whenever you are doing any work on the PCB that involves removing or fitting compo nents you must take care not to damage the copper tracks The two satisfactory meth ods of removing components from plated through hole PTH PCBs are detailed below Note The first method requires the use of a desoldering station e g Philips SBC 314 or Pace MBT 100E 3 1 1 Desoldering Iron Method Place the tip over the lead and as the solder starts to melt move the tip in a circu lar motion Start the suction and continue the movement until 3 or 4 circles have been com pleted Remove the tip while continuing suction to ensure that all solder is removed from the joint then stop the suction Before pulling the lead out ensure it is not stuck to the plating If the lead is still
352. panel fitted with a 402 speaker and programming socket It comes complete with mounting hardware and a cable to connect the programming socket to the backplane PCB T800 15 0001 Speaker Panel A 60mm speaker panel fitted with a 402 speaker complete with mounting hardware T800 17 0010 Circuit Breaker Panel A 60mm front panel fitted with a 10A magnetic circuit breaker The circuit breaker also functions as an on off switch to control the supply of power to the rack frame The T800 17 0010 is intended primarily for use with rack frames powered by batteries or with a battery back up supply and comes complete with mounting hardware T800 17 0020 Circuit Breaker Panel The same as the T800 17 0010 but fitted with a 20A circuit breaker T800 40 0000 Blank Panel Fitting Kit The mounting brackets and screws necessarv to fit a T800 Series II 60mm blank front panel into a T800 Series II rack frame T800 40 0001 Blank Panel A T800 Series II 60mm blank panel complete with mounting brackets and screws Copyright TEL 23 07 99 H14 T800 Ancillary Equipment M830 00 Power Supplies T800 23 0010 Mains Power Supply The T800 23 0010 mains power supply is designed to power the T800 23 0000 Slimline Repeater and mounts on the front panel instead of the options tray It requires a mains input voltage auto range of 85 132 170 264V AC at 47 440Hz Refer to the T800 Ancillarv Equipment Service Manual for more information T807 10 0000
353. place Cale pin 35 to be low floating Copyright TEL 30 04 98 B5 10 T835 Fault Finding M830 00 5 7 1 2 Serial Communication Disconnect the programming lead Is IC810 pin 11 high microcontroller Low floating Check the transistor interface circuitry Check pin state Y Check the SERIAL COM and AUDIO 1 2 links Connect the programming lead and use PGM800Win to read the rack radio Check l O pad P810 N Check the transistor with a DSO interface circuitry Does it swing from and or replace the 0 to 5V programming lead digital storage Y oscilloscope Use PGM800Win to send a POLL command to the radio Check IC810 pin 13 with a DSO Is there Replace a response from 1C810 after IC810 a poll command is sent Y Check the transistor interface circuitry and or replace the programming lead 30 04 98 Copyright TEL M830 00 T835 Fault Finding B5 11 5 7 1 3 CTCSS Decode Use PGM800Win to select a channel Canhorsgice achannel Check serial communications with a CTCSS tone See separate flow chart programmed Set test equipment to correct No square wave or channel CTCSS tone uneven mark space ratio Check the input filter Check IC830 pin 7 is operating correctly Is there a square wave at IC830 pin 8 the CTCSS input fre
354. ply an on channel signal from the RF generator with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust the RF level to give 12dB audio sinad Check that the sensitivity is 117dBm or better Switching Range Apply an on channel signal from the RF generator at various frequencies within the 3MHz switching range front end bandwidth corresponding to pre programmed channels Measure the sensitivity at each frequency as described in Section 4 2 Ensure that the sensitivity is 115dBm or better across the whole switching range Copyright TEL 23 07 99 B4 4 T835 Functional Testing M830 00 4 4 Audio Distortion The level of distortion measured at the line output refer to Figure 1 3 in Part F gives an indication of the accuracv of the IF alignment Note 4 5 Note Apply an accurate on channel signal from the RF generator at a level of 70dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV210 front panel line level to give 10dBm into 600 ohms Check that the distortion is approximately 1 THD For a flat response the distortion should always be better than 2 for wide bandwidth sets or 4 for mid and narrow bandwidth sets Adjust RV205 front panel monitor volume to give 2V rms into a 4 ohm resistive load Check that the distortion at the monitor output is better than 2 THD Reset the controls before proceeding to the next set of tests Ultimate Signal To Noise Ratio Apply a signal f
355. point modulation and ensures a flat modula tion response from 67Hz to 3kHz 2 55kHz for narrow bandwidth The PLL has a fast response time allowing a Tx kev up time of lt 30ms Because of this fast response time the PLL sees lower modulation frequencies superimposed on the VCO as an error and corrects for it resulting in no modulation on the carrier At modu lation frequencies greater than 300Hz the loop cannot correct fast enough and modula tion is seen on the carrier The response of the loop to VCO modulation is shown by fy in Figure 2 5 below To achieve low frequency modulation the reference oscillator is also modulated so that the phase detector of IC740 detects no frequency error under modulation Thus the synthesiser loop will not attempt to correct for modulation and the audio frequency response of the transmitter remains unaffected The response of the loop to reference frequency modulation is shown by f in Figure 2 5 The reference modulation is controlled by a 256 step 10k electronic potentiometer EPOT which is adjustable via PGM800Win The EPOT is made up of 256 resistive sec tions representing approximately 39Q each which can be individually addressed by the microcontroller Each section can be switched in or out of circuit to achieve the required total resistance thus giving control of the reference modulation VCO Deviation Frequency Figure 2 5 T836 837 Two Point Modulation 23 07 99 Copyright TEL M830 0
356. prises three or four columns as shown below circuit reference lists components Ref Var IPN Description In alphanumeric 0126 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V rder 6127 020 09220 01 CAP ELECT RADL 220M 16V 10X12 5MM orae C128 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V C129 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V amp C130 10 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R 50V amp C130 15 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R SOV amp C130 20 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R SOV 80130 25 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7A SOV C131 015 24100 08 CAP CER 0805 CHIP 1N 10 X7R 50V C132 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R 50V C133 015 05470 08 CAP CER 1206 CHIP 47N 10 X7R SOV variant column indicates that this is a variant component description which is fitted only to gives a brief description the product type listed of the component Internal Part Number order the component by this number The mechanical and miscellaneous section lists the variant and common parts in IPN order Parts List Amendments At the front of the parts list is the Parts List Amendments box an example of which is shown below This box contains a list of component changes which took place after the parts list and dia grams in this section were compiled These changes e g value changes added deleted compo nents etc are listed by circuit reference in alphanumeric order and supersede the informatio
357. pyright TEL M830 00 T835 General Information B1 11 ETS 300 279 February 1996 Radio equipment and systems electromagnetic compatibility EMC standard for pri vate land mobile radio PMR and ancillary equipment speech and or non speech 1 2 6 2 DTI CEPT Recommendation T R 24 01 Annex I 1988 Technical characteristics and test conditions for radio equipment in the land mobile service intended primarily for analogue speech Annex II 1988 Technical characteristics of radio equipment in the land mobile service with regard to quality and stability of transmission 1 2 6 3 Telecommunications Industry Association ANSI TIA EIA 603 1992 Land mobile FM or PM communications equipment measurement and performance standards Copyright TEL 23 07 99 B1 12 T835 General Information M830 00 1 3 Product Codes The three groups of digits in the T830 Series II product code provide information about the model tvpe and options fitted according to the conventions described below The following explanation of T830 Series II product codes is not intended to suggest that anv combination of features is necessarilv available in anv one product Consult vour nearest Tait Dealer or Customer Service Organisation for more information regarding the availabilitv of specific models tvpes and options Model The Model group indicates the basic function of the product as follows T83X XX XXXX T835 receiver T836 25W transmitter 1837 excite
358. pyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 7 3 4 5 3 4 6 Note 3 4 7 CTCSS Encoder If Used Program a CTCSS tone on the default channel using PGM800Win If you are using an RF test set turn off the 300Hz high pass filter Key the T836 837 with the front panel Carrier switch Adjust RV805 CTCSS level adjust to give 500Hz 350Hz 250Hz deviation Set the maximum deviation as per Section 3 4 6 FM Deviation Limiter Adjustment If the T836 837 will be used over the whole 8MHz switching range you must set the deviation for each channel However if the module will be used on frequencies that cover only a 1MHz or less switching range you can set the deviation on the middle channel and use this value for all other channels with the EPOT Fill option in PGM800Win Inject 1kHz at 10dBm into the line input D range 1 PL100 pins 1 amp 4 pins 2 3 shorted refer to Section 2 2 of Part F Adjust RV210 line sensitivity fully clockwise and key the transmitter by earthing the Tx Kev line Using PGM800Win adjust the value of the Deviation EPOT setting for the current channel to obtain a deviation limit of 4 7kHz 3 8kHz 2 3kHz you can use either the mouse or up and down arrow keys Sweep the audio frequency from 100Hz to 4kHz and ensure that the maximum deviation does not exceed 4 7kHz 3 8kHz 2 3kHz Readjust Deviation if necessary via PGM800Win Line in L
359. pyright TEL 23 07 99 B3 8 T835 Initial Tuning amp Adjustment M830 00 3 4 7 RSSI If Used Align the receiver as instructed in Section 3 6 and Section 3 7 Apply an on channel signal from the RF generator at a level of 100dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Adjust RV320 RSSI level to give 4 5V RSSI output on pin 5 of D range 1 PL100 when measured with a high impedance DMM 3 5 Audio Processor Links 3 5 1 General Use the following table to set up the audio processor to the configuration you require You should set the audio processor links before carrying out the receiver alignment The factory settings are shown in brackets Function de emphasised response flat response flat response de emphasised response audio input via AUDIO 2 pad audio from internal CTCSS speech filter audio input via I O pad P250 bypass high pass filter 300Hz high pass filter in circuit audio input via PL230 or I O pad noise mute carrier mute RX DISABLE link not connected relav link not connected a Refer to Section 3 5 2 for further details l b Refer to Section 1 4 in Part G for further details 23 07 99 Copyright TEL M830 00 T635 Initial Tuning Adjustment B3 9 3 5 2 Audio Processor Linking Details For CTCSS You must connect the audio processor links correctly according to the CTCSS option used as shown in the table below CTCSS Option standar
360. quency No square waves or one lG819 pins 2478 26 uneven mark space ratio microcontroller Replace IC810 Are there 5V square waves at p the CTCSS frequency No square waves or Check IC850 pins 1 amp 14 uneven mark space ratio Are there 9V square waves at Replace IC850 the CTCSS frequency Y Is IC850 pin 7 low and y Replace IC850 Q845 collector high or Q845 Y y N Is IC810 pin 31 low Replace IC810 Y Check the receiver mute circuit Copyright TEL 30 04 98 B5 12 T835 Fault Finding M830 00 5 7 2 Regulator Check for overheating components 8 short circuits N Check continuity 13 8V present on from D range IC630 pin 3 connector pin 9 D range 1 Y 5 3V present on N IC630 pin 1 Replace 1C630 Y 9 0V present X Check Q620 on TP602 Q630 amp IC640 Y 20V present era is on TP603 switching at approx 180kHz Y 5V present on Check R615 1C610 pin 2 Replace IC610 Y Regulators OK 23 07 99 Copyright TEL M830 00 T835 Fault Finding B5 13 5 7 3 Svnthesiser Refer to the svnthesiser circuit diagram sheet 7 in Section 6 and the VCO circuit dia gram in Part E A B No VCO RF output VCO out of lock 9V present at VCO Q4 Q5 DC V present at Q4 8 Q5 8 3V present aa ai E at VCO multiplier synth Check biasing DOY present at resistors Q1 VCO Q1 Q2 amp Q3 NBA DC V present b Check biasing on Q795 emitte
361. r Fit the blanking plate over the hole in the chassis from which the N type connector has been removed Unplug the existing coax from SK310 and SK420 retaining the spring clip for the new coax cable Fit the front panel SMC connector e insert the coax fitted with the brass SMC connector through the hole in the front of the chassis and secure with the brass nut and washer connect the coax from the SMC connector into SK310 securing the coax in the groove provided in the chassis wall with the spring clip refer to Figure 2 3 Fit all parts of the Series I front panel following Step 1 in reverse order Note If you have difficulty refitting the LEDs try pushing the body of the LED back into the grommet with a thin screw driver or spike Be very careful while doing this as the legs of the LED are very easy to break Replace the covers Programming Once you have carried out this conversion procedure you will no longer be able to program the T830 Series II module via D range 1 In order to program the module now you will need to use a program ming module interface such as the T800 01 0004 This device is fitted with a programming socket and can be connected to the module via SK805 in the microcontroller section You will have to remove the top cover closest to the handle to gain access to SK805 Note You may still be able to program the module by connecting the T800 01 0004 to a T800 03 0000 auxiliary D rang
362. r T838 50W power amplifier T839 100W power amplifier Tvpe The Type group uses two digits to indicate the basic RF configuration of the product The first digit in the Type group designates the frequency range T83X XX XXXX 1 for 136 156MHz 2 for 148 174MHz The second digit in the Type group indicates the channel spacing T83X XX XXXX 0 for wide bandwidth 25kHz 3 for mid bandwidth 20kHz 5 for narrow bandwidth 12 5kHz Options T83X XX XXXX The Options group uses four digits and or letters to indicate any options that may be fitted to the product This includes standard options and special options for specific customers 0000 indicates a standard Tait product with no options fitted The large number of options precludes listing them here 23 07 99 Copyright TEL M830 00 T835 General Information B1 13 1 4 Standard Product Range The following table lists the range of standard T835 tvpes i e no options fitted availa ble at the time this manual was published Consult vour nearest Tait Dealer or Cus tomer Service Organisation for more information Frequency Range MHz 136 156 IF Bandwidth kHz 12 2 5ppm 30 C to 60 C e Receiver Tvpe T835 15 0000 13 0000 10 0000 Frequency Range MHz 148 174 IF Bandwidth kHz 12 2 5ppm 30 C to 60 C e Receiver Type T835 25 0000 23 0000 20 0000 a Selectable by solder links and the appropriate VCO
363. r resistors 4 Q1 Y Replace if faulty Does VCO trimmer adjust for stable control line between 5 8 13V Y Replace VCO Y N Recheck VCO freq correct programming EE via PGM800Win Y Does VCO trimmer adjust for required frequency range between 5 8 13V Check 9V reg 5V present at Check 5V reg 8 IC700 IC710 supply resistor 8 107407 to each IC 20V inverter supply faulty Check 9V supply Check biasing resistors Q4 8 Q5 20V present on 1C750 pin 8 9V present on Q795 divider buffer Capacitors OK Check for cracks shorts etc VCO trimmer freq range OK Check VCO tuning caps 8 trimmer Y Is 8MHz VCO range achieved between Svnthesiser OK 5 amp 13V Check C5 C3 CA CV1 amp D1 D4 in VCO Continued on the next page Copyright TEL 30 04 98 B5 14 T835 Fault Finding M830 00 B Continued from previous page Check phase detector output pins IC740 pins 3 amp 4 Are there verv narrow pulses 50ns at the reference frequency i e 5kHz 200us period 6 25kHz 160us period See Note below Y Is the charge pump bias voltage at the base of Q760 8 Q780 between 3 5 and 5V 5V when locked Y Y Is the voltage on C762 R760 and R758 9V 0 2V Y Y i Check R762
364. r 5 9 5 7 1 1 Basic Checks 5 9 5 7 1 2 Serial Communication 5 10 5 7 1 3 CTCSS Decode 5 11 5 7 2 Regulator 5 12 5 7 3 Synthesiser 5 13 5 7 4 Noise Mute 5 16 5 7 5 Carrier Mute 5 17 5 7 6 Receiver 5 18 5 7 7 Audio 5 19 RF Test Cable IF Swept Response Ceramic Filter Swept Response 23 07 99 Copyright TEL M830 00 T835 Fault Finding B5 3 5 1 Visual Checks Remove the covers from the T835 and inspect the PCB for damaged or broken compo nents paying particular attention to the surface mounted devices SMDs Check for defective solder joints If repair or replacement of components is considered necessary refer to Section 3 of Part A 5 2 Component Checks If you suspect a transistor is faulty you can assess its performance by measuring the for ward and reverse resistance of the junctions Unless the device is completely desol dered first make sure that the transistor is not shunted by some circuit resistance Use a good quality EVM e g Fluke 75 for taking the measurements or a 20k ohm V or bet ter multimeter using only the medium or low resistance ranges The collector current drawn by multi junction transistors is a further guide to their per formance If an IC is suspect the most reliable check is to measure the DC operating voltages Due to the catastrophic nature of most IC failures the pin voltages will usually be markedly different from the recommended values in the presence of a fau
365. r is removed for other adjustment procedures make a final check of the output power and alarm levels with the side cover on Copyright TEL 30 04 98 D3 4 T838 839 Initial Adjustment M830 00 3 3 A Caution Note 1 Note 2 Note 3 Setting The Output Power If the high temperature shutdown power level has not yet been set or is unknown check that the unit does not overheat while setting the out put power Cables and connectors can easily cause a power loss of several watts if either too long or poorly terminated Always use the shortest possible leads or connectors instead of leads between the T838 839 and power meter set up You will need appropriate extension leads if you wish to carry out the adjustment procedures with the T838 839 withdrawn from the rack in the latched position Alternatively disconnect and withdraw the T838 839 and reconnect it behind the rack The actual power used may be limited by regulatory requirements Connect the exciter output to the PA input via a thru line wattmeter with a 1W full scale reading Special BNC N leads will be required Connect an RF power meter to the PA output Set the front panel power control preset RV109 fully clockwise Key on the drive source Check that the power output exceeds Note T838 50W T839 100W The side cover access hole for the driver power clamp RV115 is covered with a tamper proof sticker The clamp has been factory set to
366. rack frame T801 Frequency Reference Module The T801 frequency reference module provides a high stability frequency source to which the synthesiser within a T800 Series II base station can be locked The master standard within the T801 is primarily intended to be rubidium although high quality ovenised crystal oscillators can also be used in applications where more frequent read justment of frequency is acceptable The T801 converts the output frequency from its master standard to the 12 8MHz required by the T800 Series II base station Refer to M801 00 T801 10 OCXO Module The T801 10 OCXO module provides a high stability frequency source to which the syn thesiser within a T800 Series II base station can be locked This will provide T800 Series II transmitters with the frequency stability required for simulcast transmission The master standard within the T801 10 is a high quality ovenised crystal oscillator OCXO Three outputs are provided on the rear panel which allows up to three T800 Series II transmitters to be referenced to the source oscillator Refer to M801 10 23 07 99 Copyright TEL M830 00 T800 Ancillary Equipment H7 Rack Frames T800 22 0000 The T800 22 0000 is a standard 5U high rack frame complete with wiring loom which is designed to accommodate one 25 50 or 100W base station or repeater It comes fully assembled with the following items T800 15 0000 speaker panel with programming port T800 40 0001
367. rd Power Key o Alarm Low Forward Power LED RV103 kt WA E id RV101 A witch F Buffer IC103 gt Forward orward R Q1176 a121 o Power Power 4 s y Alarm Sense z E Comparator IC103 13 8V R153 Filtered o Integrator gt Control 0135 Q137 Supply Power IC105 Control RV109 Shutdown Comparator Power Level Ref 0 R154 IC101 RV113 te NE RF Section y 7V Reverse Power o Alarm E Y High Reverse Power LED RV105 FET Buffer IC103 Switch Reverse gt Reverse Power 4 A Q129 Q131 O Power Sense gt Alarm Comparator y 10103 RV107 Reverse O Power Meter Figure 2 3 T838 839 Control Circuitrv Block Diagram Copyright TEL 23 07 99 D2 6 T838 839 Circuit Operation M830 00 2 3 1 Power Control The DC voltages from the directional coupler representing forward and reflected power are buffered by the two voltage followers IC103 pins 1 2 3 and pins 8 9 amp 10 Their outputs are summed at an integrator IC105 pins 1 2 amp 3 which drives the series pass control elements Q135 Q137 Forward and reflected power are summed so that under high output VSWR the power control turns the PA down This is because the control loop adjusts for the same DC voltage from the directional coupler that would have been present if there were no reflected power 2 3 2 Driver Power Level The maximum output power of the T838 839 can be limited by placing a ceiling on the driver output power level using RV115 accessible
368. re frequency 50 ohms 2 5ppm 30 C to 60 C 75dBc 70dBc 65dBc 95dBc 105dBc 1 Adjustable from 0 to 10 minutes in PGM800Win version 2 12 and later 2 Adjustable in 20ms steps in PGM800Win version 2 12 and later Copyright TEL 23 07 99 C1 10 T836 837 General Information M830 00 Intermodulation T836 Mismatch Capability Ruggedness Stability Radiated Spurious Emissions Transmit Standby Conducted Spurious Emissions T836 Only Transmit Standby Power Output T836 Rated Power Range Of Adjustment T837 Duty Cycle T836 Only 1 2 4 Audio Processor 1 2 4 1 Inputs Inputs Available Line Input Impedance Sensitivity 60 modulation 1kHz With Compressor Without Compressor Microphone Input Impedance Sensitivity 60 modulation 1kHz With Compressor Without Compressor 40dBc with interfering signal of 30dBc 70dBc with 25dB isolation amp interfering signal of 30dBc PA with output isolator refer to your nearest Tait Dealer or Customer Service Organisation 3 1 VSWR all phase angles 36dBm to 1GHz 30dBm to 4GHz 57dBm to 1GHz 47dBm to 4GHz 36dBm to 1GHz 30dBm to 4GHz 57dBm to 1GHz 47dBm to 4GHz 25W 5 25W 800mW 200mW 100 B 25W at 25 C 30 25W at 60 C 100 10W at 60 C line microphone and CTCSS 600 ohms balanced 50dBm 30dBm
369. re by no means a complete fault finding procedure If you still cannot trace the fault after progressing through them in a logical manner contact your nearest Tait Dealer or Customer Service Organisation If necessary you can get additional technical help from Customer Support Radio Systems Division Tait Elec tronics Ltd Christchurch New Zealand full contact details are on page 2 Note 1 Note 2 In this and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E The following topics are covered in this section Section Visual Checks Component Checks Front Panel LED Indicator DC Checks Power Rails VCO Locking Mute Operation RF Checks VCO Frequency RF Sensitivity Oscillator Stability TCXO Second IF Demodulator Output IF Distortion Copyright TEL 23 07 99 B5 2 T635 Fault Finding M830 00 Section 5 6 PGM800Win Generated Errors 5 8 5 7 Fault Finding Charts 5 9 5 7 1 Microcontrolle
370. resistive sections representing approximately 39Q each which can be indi vidually addressed by the microcontroller Each section can be switched in or out of cir cuit to achieve the required total resistance thus adjusting the absolute deviation level Copyright TEL 23 07 99 C2 10 T836 837 Circuit Operation M830 00 2 6 Power Supply 8 Regulator Circuits Refer to the regulators circuit diagram sheet 6 in Section 6 2 or 6 3 9V Buffer Micro Power Tx Enable O gt controller Switch o Tx Reg Watchdog 13 8V Nom l o uP From Rear O Timer D Range DC Amp OST Crowbar 5V Switching 5V Dig uP Diode LA Reg q PS Reg M O Reset V V 13 8V 5V 9V 20V 5V Dig Nom Figure 2 7 T836 837 Power Supply amp Regulators Block Diagram The T836 and T837 are designed to operate from a 10 8 16V DC supply 13 8V nominal A 5 3V regulator IC630 runs directly from the 13 8V rail driving much of the synthe siser circuitry It is also used as the reference for a DC amplifier IC640 Q630 Q620 which provides a medium current capability 9V supply A switching power supply Q660 Q670 runs from the 9V supply and provides a low current capability 20V supply This is used to drive the svnthesiser loop filter 1C750 giving a VCO control voltage range of up to 20V and the Lock Detect amplifiers Ultimate cont
371. rmined by the incoming audio IC720 pins 5 amp 6 perform as a comparator ultimately producing a phase modu lated 200kHz square wave This is followed by another phase shifting stage IC720 pins 3 amp 4 Q730 Q740 before being divided down to 6 25kHz or 5kHz within the synthe siser IC IC740 A buffered output of the VCO Q795 is divided with a prescaler and programmable divider which is incorporated into the svnthesiser chip IC740 This signal is compared with the phase modulated reference signal at the phase detector also part of the synthe siser chip The phase detector outputs drive a balanced charge pump circuit Q760 Q770 Q775 Q780 Q785 and active loop filter IC750 pins 5 6 amp 7 which produces a DC voltage between OV and 20V to tune the VCO This VCO control line is further fil tered to attenuate noise and other spurious signals Note that the VCO frequency increases with increasing control voltage If the synthesiser loop loses lock a pulsed signal appears at LD pin 2 of IC740 This signal is filtered and buffered by IC750 pins 1 2 amp 3 producing the Lock Detect signal used to shut off the power supply to the drive amplifier IC750 pin 1 is at 20V when the synthesiser is out of lock Copyright TEL 30 04 98 C2 6 T836 837 Circuit Operation M830 00 2 3 1 Two Point Modulation Frequency modulation occurs by modulating both the VCO input and the synthesiser reference input This process is called two
372. rol of the transmitter is via the Tx Reg supply switched from 9V by Q610 This is enabled via the Tx Enable signal from the audio processor and microprocessor A crowbar diode is fitted for protection against connection to a power supply of incor rect polarity It also provides transient overvoltage protection Note A fuse must be fitted in the power supply line for the diode to provide effec tive protection 23 07 99 Copyright TEL M830 00 T836 837 Circuit Operation C2 11 2 7 Transmit Timers The transmit tail timer transmit timeout timer and transmit lockout timer can all be set from PGM800Win The fields for setting these are found on the system information page These three timers operate as follows refer also to Figure 2 8 Function Adjustment Transmit Tail Sets the tail time during which the 0 5 seconds in 100ms transmitter stays keyed after the exter steps nal key source has been removed Transmit Timeout Sets the maximum continuous trans 0 300 seconds in 10 mission time Once the timer has second steps timed out the transmitter must be keyed again unless prevented by the transmit lockout timer Transmit Lockout Sets the period of time that must 0 60 seconds in 10 elapse after a timeout before the trans second steps mitter can re transmit Once the timer has timed out the transmitter can be keyed again a Adjustable in 20ms steps in PGM800Win version 2 12 and later b Adjustable
373. rom the RF generator at a level of 57dBm with 3kHz deviation 2 4kHz 1 5kHz at 1kHz Select de emphasis on the links provided in the audio processor refer to Section 3 5 and link pins 2 amp 3 of PL240 to include the 300Hz filter Adjust RV210 front panel line level to provide 10dBm output Switch off the modulation checking that the residual noise is lower than 45dBm 43dBm 39dBm at the line output this corresponds to S N of 55dB 53dB 49dB and is in accordance with ELA measurement conditions You can make the measurement without the 300Hz high pass filter but the result will be 10dB worse 23 07 99 Copyright TEL M830 00 T835 Functional Testing B4 5 4 6 De emphasised Audio Frequency Response Set RV210 front panel line level to provide 0dBm output at 1kHz modulating fre quencv Sweep the modulating frequencv checking that the line audio response closelv follows that shown in Figure 4 1 the limits should not be exceeded Wide Bandwidth Mid Bandwidth Narrow Bandwidth Figure 4 1 25 C 13 8V Ref audio power 0 0dBm 1kHz Audio Level dB ref to O P 1kHz 25 C 13 8V 25 Ref audio power 20 25dBm 1kHz 15 10 w TTH PS CSS 40 ij 6 s amp O 40 2 415 2 ao
374. ropean Telecommunication Standard ETS 300 086 Januarv 1991 Radio equipment and svstems land mobile service technical characteristics and test conditions for radio equipment with an internal or external RF connector intended pri marilv for analogue speech ETS 300 113 March 1996 Radio equipment and svstems land mobile service technical characteristics and test conditions for radio equipment intended for the transmission of data and speech and having an antenna connector ETS 300 219 October 1993 Radio equipment and systems land mobile service technical characteristics and test conditions for radio equipment transmitting signals to initiate a specific response in the receiver ETS 300 279 February 1996 Radio equipment and systems electromagnetic compatibility EMC standard for pri vate land mobile radio PMR and ancillary equipment speech and or non speech 1 2 6 2 DTI CEPT Recommendation T R 24 01 Annex I 1988 Technical characteristics and test conditions for radio equipment in the land mobile service intended primarilv for analogue speech Annex II 1988 Technical characteristics of radio equipment in the land mobile service with regard to quality and stability of transmission 1 2 6 3 Telecommunications Industry Association ANSI TIA EIA 603 1992 Land mobile FM or PM communications equipment measurement and performance standards 30 04 98 Copyright TEL M830 00 T836 837 General Information C1 13
375. s the same shape as the wide bandwidth graph The devia tion figures are as follows peak max deviation 4kHz peak max deviation 4kHz Narrow Bandwidth Peak max dev 2 4kHz 2000Hz Peak max dev 2 5kHz 2000Hz Above limiting steady state Modulation Level dB ref to max dev 10 20 30 50 100 200 300 500 1k 2k 3k 5k 10k Frequency Hz Figure 4 3 T836 837 Limiting Response 30 04 98 Copyright TEL M830 00 T836 837 Functional Testing C4 7 4 6 Audio Level Input Sensitivity e Adjust RV210 line sensitivitv fullv clockwise Check that the input sensitivities are better than those specified below Line Input 600 ohms 3kHz 2 4kHz 1 5kHz deviation at 1kHz with compressor 50dBm without compressor 30dBm Microphone Input 600 ohms 3kHz 2 4kHz 1 5kHz deviation at 1kHz with compressor 75dBm without compressor 55dBm CTCSS Input 1kHz deviation at 150Hz 500mV rms Note A degraded signal to noise ratio can be expected with the compressor selected The extent of the degradation is dependent on the audio input level Editor s Note The CTCSS adjustment procedure described in Section 4 7 has been moved to a more appropriate location in Section 3 as part of the Ini tial Tuning amp Adjustment procedure refer to Section
376. signed to operate safelv under a wide range of aerial loading conditions However we stronglv recommend that the transmitter should alwavs be operated with a suitable load to prevent damage to the transmitter output power stage AN 4 Caution Beryllium Oxide amp Power Transistors The RF power transistors in current use all contain some beryllium oxide This sub stance while perfectly harmless in its normal solid form can become a severe health hazard when it has been reduced to dust For this reason the RF power transistors should not be broken open mutilated filed machined or physically damaged in any way that can produce dust particles 30 04 98 Copyright TEL M830 00 Mechanical A2 1 2 Mechanical 2 1 Torx Recess Head Screws Torx recess head screws are becoming the standard screw head type in all T800 Series II equipment with Pozidriv and Philips recess head screws being used in fewer applica tions The Torx recess head has the advantage of improved screwdriver tip location reducing the chances of screw head damage caused by the driver tip rotating within the recess In addition using a ball tip Torx screwdriver allows you to drive a Torx head screw with the driver on a slight angle which can be useful in situations where access is restricted It is important that you use the correct Torx screwdriver tip M3 screws T10 M4 screws T20 Figure 2 1 below shows a typical Torx recess head screw actual hardware
377. sitivitv as follows e set the injected signal at the line input to the required line level typically 10 to 20dBm e adjust RV210 line sensitivity to provide 3kHz 2 4kHz 1 5kHz devia tion Reapply the CTCSS signal if required 3 9 6 Compressor The compressor may be used on the line input only the microphone input only or on both the line and microphone inputs If the compressor is used refer to one of the fol lowing sections as appropriate 3 9 6 1 Compressor On Line Input Only Set RV210 line sensitivity fully clockwise and key the transmitter by earthing the Tx Key line Reduce the line level to 50dBm at 1kHz and set RV220 compression level fully clockwise Check that 3kHz 2 4kHz 1 5kHz deviation is still available Slowly increase the audio input level until the demodulated waveform shows sig nificant signs of clipping approximately 4 5kHz 3 6kHz 2 3kHz deviation Adjust RV220 anticlockwise until the demodulated waveform is just clipping approximately 4kHz 3 2kHz 2kHz deviation Increase the input level to 10dBm and check that the test tone is still held just into clipping The input line level should be typically 10 to 20dBm 3 9 6 2 Compressor On Microphone Input Only Key the transmitter by earthing the Tx Key line and plug a microphone jack into the front panel socket Adjust RV220 compression level fully clockwise Acoustically couple the microphone to a tone
378. t 1kHz Adjust RV320 RSSI level to give 4 5V RSSI output on pin 5 of D range 1 PL100 when measured with a high impedance DMM 23 07 99 Copyright TEL M830 00 T835 Functional Testing B4 1 4 T835 Functional Testing b Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following test procedures will confirm that the T835 has been tuned and adjusted correctly and is fully operational Note 1 In this and following sections deviation settings are given first for wide bandwidth sets followed by settings in brackets for mid bandwidth sets and narrow bandwidth sets Note 2 Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Figure 4 3 for the location of the main tuning and adjustment controls and to Section 3 3 for the test equipment set up Refer also to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E The following topics are covered in this section Section 4 1 Current Consumption 4 3 4 2 Sensitivity 4 3 4 3 Switching Range 4 3 4 4 Audio Distortion 4 4 4
379. t on that sheet Device PCB Circuit Device PCB Circuit Device PCB Circuit Device PCB Circuit C201 1 01 2 B8 C314 1 E8 3 J8 C472 2 M8 4 P3 C741B 1 G2 7 03 C202 1 C1 2 C8 C316 1 E8 3 K8 C475 2 J8 4 N8 C742A 1 H2 7 D4 C204 1 A2 2 E8 C317 1 F9 3 L7 C477 2 H8 4 P8 C742B 1 H3 7 D3 C205 1 A2 2 E8 C318 1 F9 3 M7 C495 1 G8 4 P1 C743 1 H2 7 B1 C207 1 C7 2 B6 C320 1 F8 3 N8 C503 1 K6 5 L9 C745 1 G3 7 D1 C209 1 06 2 D6 C330A 1 F8 3 LO C505 1 K6 5 M6 C750 1 H4 7 Q7 C210 1 07 2 HO C330B 1 F9 3 MO C510 1 J5 5 CO C757 1 G4 7 F5 C211 1 B7 2 F8 C332 2 E4 3 B5 C513 1 H5 5 G2 C759 1 G4 7 G4 C213 1 B6 2 G8 C334 2 E4 3 D4 C535 1 K5 5 M2 C761 1 G3 7 J4 C215 1 B6 2 G8 C336 2 E4 3 D5 C550 1 K4 5 LO C762 1 G3 7 K4 C217 1 C6 2 H8 C338 2 E5 3 F5 C605 1 L6 6 D8 C764 1 H3 7 32 C219 1 C6 2 H7 C340 2 E5 3 F5 C610A 1 M5 6 F8 C765 1 G3 7 K2 C221 1 D5 2 G6 C342 2 E4 3 G6 C610B 1 M5 6 G8 C767 1 H3 7 K3 C223 1 05 2 J6 C343 1 E7 3 K5 C611A 1 L5 6 H8 C769 1 H4 7 N4 C225 1 03 2 K7 C344 1 E7 3 K5 C611B 1 M5 6 J8 C770 1 H4 7 N4 C227 1 B4 2 K7 C345 1 E8 3 K6 C623 1 M6 6 N8 C772 1 G4 7 N2 C229 1 B3 2 L7 C346 1 E8 3 L6 C625 1 M6 6 Q8 C774 1 H4 7 P2 C230 1 B4 2 HO C347 1 E8 3 M6 C626 1 M6 6 R8 C776 1 H4 7 N1 C232 1 A4 2 M7 C348 1 E8 3 P6 C628 1 M6 6 R8 C782 1 G2 7 N1 C233 1 A5 2 N7 C349 2 F4 3 C2 C630 1 M5 6 K5 C784 1 G2 7 Q1 C235 1 B5 2 K5 C350 2 F4 3 E3 C631A 1 M5 6 M6 C786 1 G2 7 R1 C237 1 04 2 K5 C353 2 F4 3 DO C634 1 N5 6 M4 C788 1 63 7 PO C239 1 04 2 L4 C356 2 E4 3 F1 C636 1 M5 6 M4
380. t the product was built as a T835 10 XXXX I 1 835 PRODUCT TYPE I I 835 MM 83510 1 1 835 20 I 1I 835 I I 835 138 I 835 23 PRODUCT TYPE 1 I 835 15 1 I 835 25 Note The only function of this resistor is to indicate the product type It has no effect on the circuitry or operation of the receiver PCB Identification All PCBs are identified by a unique 10 digit internal part number IPN e g 220 12345 00 which is screen printed onto the PCB usually on the top side as shown in the example below EAS A 220 D1390 Le The last 2 digits of this number define the issue status which starts at 00 and increments through 01 02 03 etc as the PCB is updated Some issue PCBs never reach full production status and are there fore not included in this manual A letter following the 10 digit IPN has no relevance in identifying the PCB for service purposes Note It is important that you identify which issue PCB you are working on so that you can refer to the appropriate set of PCB information Copyright TEL 30 04 98 B6 1 4 T835 PCB Information M830 00 Parts Lists The 10 digit numbers 000 00000 00 in this Parts List are internal part numbers IPNs We can process your spare parts orders more efficiently and accurately if you quote the IPN and provide a brief description of the part The components listed in this parts list are divided into two main types those with a circuit r
381. te service manual T800 08 0000 Ancillary Chassis The T800 08 0000 is a general purpose chassis designed to be mechanically and elec tronically compatible with a T800 Series II rack frame It comprises the following items e top and bottom chassis rails e side panels e rear panel e PCB mounting brackets e double D range plug assembly for mounting directly on a PCB e T800 Series II blank front panel complete with handle Custom designed PCBs for special applications can be mounted in several positions inside the chassis to provide a convenient plug in module that interfaces directly with a T800 Series II rack frame Refer to Technical Note TN 512 for further information T800 10 0000 Channel Select PCB The T800 10 0000 is a small PCB that plugs into the Micromatch connector SK805 in the microcontroller compartment of a T800 Series II receiver exciter or transmitter Itis fitted with an eight switch DIP switch which allows the manual selection of any one of the channels already programmed into the module by PGM800Win The T800 10 0000 is also fitted with a Micromatch socket to provide access to SK805 for programming pur poses 1800 80 Local Microphone A 60002 microphone complete with 300mm cord terminated in a 1 4 stereo plug Copyright TEL 23 07 99 HA T800 Ancillary Equipment M830 00 T818 01 0000 Receiver Transmitter Monitor The T818 01 0000 formerly T318 02 is designed to monitor the basic operational func
382. tely desol dered first make sure that the transistor is not shunted by some circuit resistance Use a good quality EVM e g Fluke 75 for taking the measurements or a 20k ohm V or bet ter multimeter using only the medium or low resistance ranges The collector current drawn by multi junction transistors is a further guide to their per formance If an IC is suspect the most reliable check is to measure the DC operating voltages Due to the catastrophic nature of most IC failures the pin voltages will usually be markedly different from the recommended values in the presence of a fault The recommended values can be obtained from either the circuit diagram or the component data catalogue 5 3 Front Panel LED Indicator The green Supply LED on the T836 837 front panel will flash according to the condi tions described in the following table Flash Rate Condition a sec on sec off T836 837 is linked with approx PGM800Win Va sec on 1 sec off microcontroller has detected an approx internal communications error refer to Section 5 7 1 Where two or more conditions occur at the same time the precedence is in the order shown above i e T836 837 linked has the highest priority followed by internal error Copyright TEL 30 04 98 C5 4 T836 837 Fault Finding M830 00 5 4 DC Checks 5 4 1 Power Rails Refer to the test points and options diagrams in Section 6 for test point locations and to the re
383. ternal CTCSS detection The conditions stated in the above table are defined as follows standard no CTCSS no CTCSS or other sub audio signalling used audio bandwidth 300Hz to 3kHz hum amp noise 55dB received CTCSS tone tone and speech transmitted down 600 ohm line speech to line output audio bandwidth 10Hz to 3kHz hum amp noise 45dB high pass filtered speech 400Hz to 3kHz internal CTCSS detection hum amp noise 30dB with 250 3Hz tone present external CTCSS detection decoding performed through the receiver but externally speech injected back into receiver via AUDIO 2 and sent down 600 ohm line Note 1 AUDIO 2 is available on D range 1 PL100 pin 7 via the link resistor R160 Although PL100 pin 7 is already assigned to SERIAL COM this can be disa bled by removing R808 Note 2 External CTCSS units can connect in series with the audio chain via AUDIO 1 and AUDIO 2 Copyright TEL 30 04 98 G1 4 T835 Link Selectable Features M830 00 30 04 98 Copyright TEL M830 00 T836 837 Optional Features G2 1 2 T836 837 Optional Features 2 1 Audio Processor The T836 and T837 come with a number of link selectable features which give added system flexibility Note The tables in this section are the same as those in Section 3 5 in Part C They have been repeated here for ease of reference 2 1 1 Link Details Use the following table to set up the audio processor to the
384. th a circuit refer ence e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns as shown below circuit reference lists components Ref_ Var IPN Description in alphanumeric 0126 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V d C127 020 09220 01 CAP ELECT RADL 220M 16V 10X12 5MM oraer C128 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V C129 015 06100 08 CAP CER 1206 CHIP 100N 10 X7R 50V amp C130 10 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R 50V 30130 15 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R SOV 80130 20 015 25100 08 CAP CER 0805 CHIP 10N 10 X7R SOV 80130 25 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7A SOV C131 015 24100 08 CAP CER 0805 CHIP 1N 10 X7R 50V C132 015 24470 08 CAP CER 0805 CHIP 4N7 10 X7R 50V C133 015 05470 08 CAP CER 1206 CHIP 47N 10 X7R 50V variant column indicates that this is a variant component description which is fitted only to gives a brief description the product type listed of the component Internal Part Number order the component by this number The mechanical and miscellaneous section lists the variant and common parts in IPN order Copyright TEL 30 04 98 E1 2 Introduction M830 00 Parts List Amendments At the front of the parts list is the Parts List Amendments box an example of which is shown b
385. the PA via the RF coax This is injected via L390 Copyright TEL 30 04 98 C2 14 T836 837 Circuit Operation M830 00 30 04 98 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 1 3 T836 837 Initial Tuning 8 Adjustment e Caution This equipment contains CMOS devices which are susceptible to dam age from static charges Refer to Section 1 2 in Part A for more infor mation on anti static procedures when handling these devices The following section describes both short and full tuning and adjustment procedures and provides information on e channel programming e selecting required audio links e svnthesiser alignment e PA alignment 1836 only e modulator adjustment e limiter adjustment e setting line level e compressor adjustment e timer adjustment Note Unless otherwise specified the term PGM800Win used in this and follow ing sections refers to version 2 00 and later of the software Refer to Figure 4 4 and Figure 4 5 which show the location of the main tuning and adjustment controls Refer also to Section 6 where the parts lists grid reference index and diagrams will provide detailed information on identifying and locating compo nents and test points on the main PCB The parts list and diagrams for the VCO PCB are in Part E Section Introduction Channel Programming Test Equipment Required Short Tuning Procedure Introduction Synthesiser Alignment Output Power
386. the mechanical assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments D111 Changed from MR750 IPN 001 00011 60 to MR2520L IPN 001 00012 90 to provide overvoltage transient sup pression 750087 88 89 90 91 92 R386 Changed from 472 IPN 036 12470 00 to 330 IPN 036 12330 00 R390 Changed from 120 IPN 030 52120 20 to 3 30 IPN 030 51330 00 1g37 2X only to cure power sag R392 R396 Changed from 8200 IPN 030 53820 20 to 1k5 IPN 030 54150 00 f 710925 R394 128 IPN 030 52120 20 deleted 349 00020 36 The two M3x8 Torx screws which secure the module into the rack frame have been replaced by M3x8 Pozidriv screws IPN 349 00020 55 750101 2 3 5 6 Copyright TEL 23 07 99 IPN 220 01390 03 C6 3 28 T837 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description C332 015 24100 08 CAP CER 0805 1N 10 X7R 50V Note D205 and D210 are optional level limiting diodes for 334 015 25100 08 CAP CER 0805 10N 10 X7R 50V AN C336 015 24100 08 CAP CER 0805 1N 10 X7R 50V special
387. those with a circuit reference e g C2 D1 R121 etc and those without miscellaneous and mechanical Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group Each component entry comprises three or four columns the circuit reference variant if applicable IPN and description A letter in the variant column indicates that this is a variant component which is fitted only to the product type listed Static sensitive devices are indicated by an S at the start of the description column The mechanical and miscellaneous section lists the variant and common parts in IPN order The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments C6 Rx low D changed from 22p 015 22220 01 to 18p 015 221 80 01 to improve loop voltage 710900 A A Tx High Tx High incorrectly listed as 22p 015 22220 01 correct value is 18p 015 22180 01 changed from 18p 015 22180 01 to 15p 015 22150 01 to improve the loop voltage tuning range at the top of the band 710943 44 Copyright TEL 23 07 99 IPN 220 01176 03
388. through the side cover For exam ple if RV115 is set for a maximum output power of 50W the range of adjustment using RV109 front panel power adjust will be 20 to 50W A Caution The driver power level clamp RV115 is factory set to give a maximum power output of 60W for the T838 and 120W for the T839 The unit may be damaged if this level is increased 2 3 3 Thermal Protection At excessively high temperatures the output power will automatically reduce to a pre set level set by RV113 thus preventing the PA from overheating Ambient temperature within the PA is measured by a thermistor controlled voltage divider R168 R237 which applies a voltage to a comparator with hysteresis IC101 pins 8 9 amp 10 This thermistor is located on the PCB in the low pass filter cavity Thermal protection is also provided for each RF power module to prevent the module itself from overheating This protection consists of a thermistor controlled voltage divider R207 R215 and R220 R219 which sets a voltage on a comparator with hyster esis IC204 pins 1 2 amp 3 and 5 6 amp 7 These thermistors are located on the module flanges The output current from all comparators is summed into the power control network via RV113 so that the power level to which the PA must turn down may be set 30 04 98 Copyright TEL M830 00 T838 839 Circuit Operation D2 7 2 3 4 Forward And Reverse Power Alarms If forward power drops below or revers
389. tion Aerial Load Caution Beryllium Oxide Power Transistors Mechanical Torx Recess Head Screws Pozidriv amp Philips Recess Head Screws Disassembly Reassembly Receivers Exciters Transmitters Power Amplifiers Cover Screw Torques Chassis amp Cover Compatibility Component Replacement Leaded Components Desoldering Iron Method Component Cutting Method Surface Mount Devices Cased Mica Capacitors Software History PGM800Win V1 0 PGM800Win V2 00 Typical Product Code amp Serial Number Labels Typical Anti static Bench Set up Torx Screw Identification Pozidriv amp Philips Screw amp Screwdriver Identification Identification Of New Design Chassis amp Covers Copyright TEL 23 07 99 All M830 00 30 04 98 Copyright TEL M830 00 General M 1 1 General 1 1 Additional Technical Information If vou have anv questions about this manual or the equipment it describes please con tact your nearest Tait Dealer or Customer Service Organisation If necessary you can get additional technical help from Customer Support Radio Systems Division Tait Elec tronics Ltd Christchurch New Zealand full contact details are on page 2 When requesting information please quote either the manual product code e g M830 00 200 or the equipment product code and serial number which are printed on a label on the back of the product as shown in Figure 1 1 this area used
390. to provide overvoltage transient sup pression 750087 88 89 90 91 92 Changed from 74HCU04 to 74HC04 IPN 002 74900 04 to improve ultimate signal to noise performance by reducing PLL phase noise 710352 Changed from BF477A IPN 000 50020 18 to BF247A IPN 000 00020 18 as BF477A unavailable 710896 Changed from 4k7 to 2k7 IPN 036 14270 00 To improve sensitivity selectivity distortion and Changed from 4708 to 5604 IPN 036 13560 00 mute ratio 710056 Changed from 1800 to 5604 IPN 036 13560 00 Changed from 6802 to 2k2 IPN 036 14220 00 Loop filter revisions to improve narrow band ivity and lock time 710317 Changed from 5k6 to 6x8 IPN 036 14680 00 f Selectivity and lock time 710317 Changed to IPN 042 05470 07 47k preset because IPN 042 05470 06 no longer available 710793 96 97 98 T800 chassis replaced By 903 11169 04 New chassis and lid tooling introduced incorporating T800 top lid replaced by 312 01052 02 mechanical improvements and better RF shielding 750027 750028 amp 750029 Note that the new lids T800 bottom lid replaced by 312 01053 02 should be used only with the new chassis The two M3x8 Torx screws which secure the module into the rack frame have been replaced by M3x8 Pozidriv screws IPN 349 00020 55 750101 2 3 5 6 Copyright TEL 23 07 99 IPN 220 01394 02 B6 2 4 T835 PCB Information M830 00 Ref Var IPN Description Ref Var IPN Description
391. try Note c w clockwise cc w counterclockwise or anticlockwise 23 07 99 Copyright TEL 3 5V at Q365 collector N 10 5V at Q370 collector Y M830 00 T836 837 Fault Finding 5 17 5 7 6 1837 Exciter Drive Amplifier lock synthesise i 10 5V at Q315 collector Check power rails Check 1C330 R324 8 R326 gt 5V present on IC330 pin 1 Check Q310 8 Q315 N gt 2 2V RF at PR H R359 R3607 Grieck VCO Y gt 1 1V RF at N Check attenuator pad R360 R362 R359 R360 R362 Y N Check C362 C365 C368 o Q365 L311 D340 D350 i 8 D360 gt 6V RF at b 379 L360 Check Q365 N gt 1 5V RF at Check signal path Q370 base between Q365 8 Q370 gt 6V RF at Q370 collector Check Q370 Drive amp OK Copyright TEL 30 04 98 C5 18 T836 837 Fault Finding M830 00 5 7 7 Audio Processor Key exciter amp lock synthesiser Connect 1kHz audio to external CTCSS input Y Does exciter 7 Audio output at M Check audio path to modulate 1C260 pin 8 VCO control line Y N Y Y Check alignment Audio output at a Check buffer IC260 of modulators IC260 pin 12 pins 8 9 8 10 N Y Y Y Demodulated audio Audio output at x Check low pass HH filter stage IC260 fr
392. tter T837 exciter and T838 839 power amplifiers Section Title Page T835 Installation Rack Mounting Rack Wiring Power Supply Reverse Polarity amp Overvoltage Protection T836 837 Installation Rack Mounting Rack Wiring Power Supply Reverse Polarity amp Overvoltage Protection T838 839 Installation Rack Mounting Rack Wiring Power Supply Reverse Polarity amp Overvoltage Protection N Type Connector Assembly T800 41 0002 Double Guide Kit T835 Chassis Connectors T835 D Range 1 Wiring Rear View T835 D Range 2 Wiring Rear View T800 03 0000 Kit T800 41 0002 Double Guide Kit T836 837 Chassis Connectors T836 837 D Range 1 Wiring Rear View T836 837 D Range 2 Wiring Rear View T800 03 0000 Kit Copyright TEL 23 07 99 FII M830 00 T800 45 0001 PA Guide Kit T838 839 Chassis Connectors T838 839 PA In Latched Position T838 839 D Range Wiring Rear View N Type Plug Assembly Details 23 07 99 Copyright TEL M830 00 N Tvpe Connector Assemblv F4 1 4 N Tvpe Connector Assembly Make sure that any N type plugs connected to Tait equipment are assembled according to the manufacturer s instructions It is particularly important that the centre pin in the plug is positioned correctly e if the pin is positioned too far back in the plug it may not make good contact with the socket e if the pin protrudes too far as shown in Figure 4 1 or is not straig
393. type listed Static sensitive devices are indicated by an S at the start of the description column The miscellaneous and mechanical section lists the variant and common parts in IPN order Where possible a number in the legend column indicates their position in the mechanical assembly drawing The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were compiled These changes e g value changes added deleted components etc are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams Components without circuit references are listed in IPN order Parts List Amendments D101 D105 D113 IC204 R123 R158 R207 R209 R210 R213 R218 R219 R220 R222 R224 R228 R229 349 00020 36 Removed from the main PCB and replaced bv two 1N4148 diodes IPN 001 50012 00 placed on the D range POB one soldered between PL101 pins 5 and 7 cathode the other between PL101 pins 6 and 8 cathode To allow external power meters to read zero and still provide meter overvoltage protection 710978 Changed from MR750 IPN 001 00011 60 to MR2520L IPN 001 00012 90 to provide overvoltage transient sup pression 750087 88 89 90 91 92 Changed from LMC622CM to LM358 710382 Changed from 1k resistors IPN 036 14100 00 to BA592 diodes IPN 001 10059 20 to allow external power meters to read zero 710978
394. up With T800 01 0010 13 8V ep zuzia Frequency PSU 20dB pad exciter l Counter 40dB pad transmitter Ve Xi ES i Line I P ESE Ne PENES Exciter Modulation Audio 6002 z Transmitter i 2 gt GN Meter Generator CTCSS 1 P AF O P o A IS Q O Audio a Voltmeter V RF Power Audio Oscilloscope Meter Voltmeter Serial via module programming interface O Com e g T800 01 0004 PGM800Win Figure 3 2 T836 837 Test Equipment Set up Without T800 01 0010 23 07 99 Copyright TEL M830 00 T836 837 Initial Tuning Adjustment C3 5 3 4 Short Tuning Procedure Use this procedure only if you want to reprogram the T836 837 to a frequency outside the 8MHz switching range and do not intend to carry out any other major adjustments or repairs 3 4 1 Introduction Reprogram the operating frequency as described in the PGM800Win program ming kit refer to Section 3 2 Remove the top cover nearest the handle Set up the test equipment as described in Section 3 3 Set the links in the audio processor section as required refer to Section 3 5 3 4 2 Svnthesiser Alignment Connect a high impedance voltmeter to PL4 1 or the junction of L1 amp R1 in the VCO this measures the synthesiser loop voltage Key the transmitter by earthing the Tx Key line Single Channel Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V Multichannel Tune VCO trimmer
395. utput Noise 1 Mut 7 e Rx Disable Rx Disable PL260 Timer Optional Pad 24 M Monitor lt O O Mute Disable Flat De Flat De Volume Driver Amp emphasis PL210 emphasis Speaker Output z L e 2 Amplifier e Speaker Demodulated IF 33 PL240 Mute Signal Comp 1 A LPF 27 Driver Amp o IF Audio 91 ie 35 l 8 Line Output E 2 Su Compensation L o3 4 Line mo ircuit PL220 High Pass gt Line y Mute ilter Level A l 1 Line Monitor 2 E PL230 Audio 1 Audio2 Speech Output Input Figure 2 3 T835 Audio Processor Block Diagram The recovered audio on pin 7 of IC350 is processed by IC390 and passed through a fre quency compensation network and a third order elliptic active filter IC210 to give the required response Linking PL220 PL210 is available to give either a flat or de emphasised audio response with de emphasis giving a 6dB octave roll off The out put of IC210 is split to provide separate paths for the speaker and line outputs The Audio 1 Audio 2 and Speech lines allow access to the receiver s audio path for external signalling purposes refer to Section 3 5 The signals are passed to audio drive amplifiers IC240 and IC260 Under muted condi tions the inputs of these amplifiers are shunted to ground via transistors Q230 and Q290 respectively The audio output of IC240 has a DC component which is removed by C249 and this then drives a speaker directly The output of IC260 is fed int
396. wer reduce to high to low when IC101 pin 9 T838 14W is earthed Check Q133 T839 40W A Note A final confirmation of high temperature shutdown and or T839 fan activation at high temperatures can be obtained by heating the earth pad of R237 to gt 130 C with the tip of a soldering iron Take care not to damage R237 Power control OK Copyright TEL 30 04 98 D4 10 T838 839 Fault Finding M830 00 4 4 4 T839 Fan Control Circuitry Key transmitter Check Q103 8 Q105 collector voltages Check Q107 8 Q109 Check IC101 pin 1 lt 1V Check Q101 Check Tx key is low at ground Does fan run at room temperature Spray freeze on R116 OR short R118 Spray freeze on R116 OR short R118 Check IC101 pin 1 gt 11V Check Q105 8 Q103 Does the low temperature inhibit circuit stop the fan Do not key transmitter Earth IC101 pin 9 see Section 3 5 Earth IC101 pin 9 see Section 3 5 Check IC101 pin 14 gt 11V Check Q105 8 Q103 Does high temperature control circuit activate fan NA Fan control OK 30 04 98 Copyright TEL M830 00 T838 839 Fault Finding D4 11 4 5 Replacing RF Power Modules A Caution Follow these instructions carefully otherwise the module can fail because of poor heatsinking or cracked substrates 4 Caution Do not applv too much heat to the origi
397. xciter trans mitter inputs and outputs via a 25 way D range socket Copyright TEL 23 07 99 H12 T800 Ancillary Equipment M830 00 Rack Frame Ancillaries T800 13 0000 Extender Rail The T800 13 0000 extender rail allows a T800 Series II receiver exciter or transmitter to be operated out of the rack frame with the covers off for tuning purposes It is fitted with two 15 way D range connectors T800 14 0000 Extender Rail The T800 14 0000 extender rail is the same as the T800 13 0000 but is intended for equipment using an external reference e g Quasi Sync It thus has one 15 way D range and one 11 way D range incorporating a miniature RF connector T800 19 0000 Rack Mounting Fan The T800 19 0000 fan is designed to fit into the base of any standard 483mm rack frame without affecting its ability to house seven modules The two mounting rails are secured to the rack frame side panels and the fan is screwed onto the rails under the required module The kit contains all mounting hardware T800 19 0010 Rack Mounting Fan The T800 19 0010 fan is designed to fit into the base of any standard 483mm rack frame without affecting its ability to house seven modules The fan is mounted directly onto the underside of the bottom guide rails with two mounting brackets The kit contains all mounting hardware 23 07 99 Copyright TEL M830 00 T800 Ancillary Equipment H13 Front Panels T800 15 0000 Speaker Panel A 60mm speaker
398. y be seen on a functional level in Figure 2 1 and Figure 2 2 Refer to the circuit diagrams in Section 6 2 T836 or 6 3 1837 for more detail PIN Drive Exciter Directional Low Pass Switch Amp Output PA Coupler Filter A Reference Sie 22dBm 27dBm EJ Una Oscillator ynthesiser gt O O O utpu 12 8MHz x LA ra 25W Lock Detect Microphone K Power l E f Control Audio Processor MARC Line HH Ma Transformer Delav A amp Time Rami Time Gate gt Delay gt Gen gt Delay o VCO Tx Reg o Figure 2 1 T836 High Level Block Diagram PIN Drive Low Pass Switch Amp Filter A Reference i 22dBm AG Exciter Oscillator J Synthesiser gt ALL O Output 12 8MHz x 800mW Lock Detect J Switching Microphone Control Audio 6 Processor PA Control Signal A 2 E via exciter RF coax Line g il Transformer T ime Ramp gt 8 gt Delay gt Gen Gate Time Tx Reg o gt Delay o VCO Figure 2 2 T837 High Level Block Diagram Copyright TEL 30 04 98 C2 4 T836 837 Circuit Operation M830 00 2 2 Microcontroller Refer to the microcontroller circuit diagram sheet 8 in Section 6 2 or 6 3

T830 Series II Base Station Equipment 136

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