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TK-780 - K9ROD

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1.
2. 1 1 2 a R722 R679 IC513 eas ass 5 ayy m 5 06V SV AVR ols 5 06 o TE 852 546 509 58 LED SW 39 Sisi s T TAT5W558FU 1 35V 330k 3 3k OUT IN oye 2 4 B 5 04V gt 603 xc 0 L
3. 1 6 8 9 12 016 20 26 31 188355 D28 020715 Y DSA3A1 D212 213 XB15A709 Q1 18 32 25 1824 07 300 2SC4215 Y 912 2581132 0 020 B1188 Q Q202 203 2SC3357 1C1 6 TAT5WO1FU 1 7 8 BU4094BCFV AN8009M IC202 GN2011 Q 16400 35 C38 C41 63 139 149 251 256 430 431 R46 R85 120 127 4147 149 249 R250 R251 8402 502 c D TSV JTE P ERR Ba IS M eas np n c 1127 6 X Y 232 22ZR 10D D206 208 Isv282 Q2 3 17 28C2412K C8 DTC363EU 015 2SC2059K P FMW1 Q204 2SC2954 1 2 3 TATSWSS8FU IC9 12 Icl4 TAT808S IC300 SATO25DK M6TT741H 32 TK780E 2 70 NO YES 0 01 101 16 1001161 2e sp eP No 10K 47K 15 sek 18K NO No 1 MINISMDCOT5 02 02DZ18 X YO D209 210 HSB123 Q4 DTD114EK as DTA114YUA 016 24 DTC144EE 023 25 26 30 14 Q301 302 IC4 TC4S66F ICIO LA4422 TC4013BF N NJM2904V 252 i Mss eon EM 2 T 23 83 2 gt ORSBES 19498 UNSESSOE 7
4. 21 Fuse F52 0006 05 9 Rating label 40 Bracket B42 5999 14 J29 0627 23 35 Inner packing case H12 1391 03 44 Screw set N99 0395 05 34 Polystyrene foamed fixture B H10 6619 12 707 Pamphlet 37 Protection bag 25 0720 04 7 Instruction manual 2 B62 1438 10 k 33 Polystyrene foamed fixture F H10 6618 12 38 Item carton case H52 1569 02 E H52 1931 02 E3 44 Parts with the exploded numbers larger than 700 are not supplied 780 ADJUSTMENT Test Mode Test Mode Operating Features This transceiver has a test mode To enter test mode press B key and turn power on Hold B key until test channel No and test signalling No appears on LCD Test mode can be inhibited by programming To exit test mode switch the power on again The following functions are available in test mode Controls SFT appears PTT Used when making a transmission mI Shift off A FFSK 1200 bps and 2400 bps B Shift off C Compander function on and off D Beat shift on and off CALL Shift off Channel Up Down Shift off Volume Up Down Shift off Controls SFT not appears PTT Used when making a transmission Monitor off Sets to the tuning Shift RF power high and low D Changes signalling CALL Changes wide semi wide and nar row Channel Up Down
5. R R R R RK73 73GB1J472J 47K J 1 46W RK73 R32 0658 05 FIXED VARIABLE RESISTOR R92 1 DA204U ODE RK73 1 5 123 R92 1 020220 2 DIODE RK73 4 DA204U 0DE R92 1 5 123 0 RK73 1 DAN202U R92 1 DA204U RK73 HSB123 R92 1368 DAN235E RK73 155355 R92 1 DA204U RK73 HSB123 DE R92 1 155355 DE RK73 i 02025 6 ER DIODE R92 1 DAN235E DE RK73 INISMDC075 02 ARISTOR R92 1368 155355 ODE RK73 HSM88AS ODE R92 1368 020715 Y ZENER DIODE RK73 1 HSM88AS DIODE R92 1368 155355 0100 RK73 2278 100 SURGE ABSORBER RK73H 020219 ZENER DIODE RK73 742 0100 R92 1 0100 RK73 15 282 RIABLE CAPACITANCE DIODE R92 1368 05 HSB123 RK73HB1J472J 4 6 R92 1368 05 15 709 RK73GB1J181J DA204U RK73GB1J473J HSB123 RK73GB1J473J INISMDC075 02 RK73FB2A222J DA204U RK73GB1J473J HSB123 RK73GB1J103J DAN202U RK73GB1J223J 742 DI0 RK73GB1J103J HSC119 DIODE RK73FB2A390J 02DZ9 1 X Y ZENER DIODE RK73FB2A222J A2S111 0100 RK73GB1J473J TA75WO1FU OS IC RK73GB1J103J TA75W558FU 0S IC RK73GB1J102J 1 TC4S66F OS IC RK73GB1J101J M62363FP OS IC RK73GB TA75WO1FU 0S IC RK73GB BU4094BCFV OS IC Ref Address Parts Description PARTS LIST Desti nation Address Parts No 780 U
6. 9301 Q302 2106 CONTROL SECTION CK DT LD 28C3722K S 250421501 X57 614 B 2 BUB UNIT azo DI Qi01 DTCIIAEUA Xs84850 10 7 OnlyE3 2581168 E STR 9104 2SC4081 aa ME ZAM 2105 1 2sc2412K S 1 2SC2412K S lt MI TXS xi 1 1 Q29 16 SMHz RIPPLE 1 RIPPLE MIC PTT FILTER 15 VERE FILTER DTCit4EE 295555 MB WL 9501 power 8 DTC314TU 3 2SC2412K S vai 1 06 gt BU4066BCFV ac LOK AK 3 5 D N202U TATSSOLF PER BT DTALL4BE 16510 gt LOK DTC TXS TSW ES ac AT29CO20 00T1 RH5VL42C is 5c lt EE S N 3510 z RESET T uh WIDE DTCL44ER HOR RESET 0 LiMITER a 9 8 28 3 3 E lt SUE DTCii4EE DTDLL4EK MICIN NARROW HNC HOR pie cece 1258 2 Es ICIL Q32 CNVSS 28 3357 3 642011 44 85MHz ik L204 1 1 25 1824 TATSW568FU TH APO HOOK RXD gt Mer DET TXD 05 RSS MUTE PSW AUDIO DTC114EP MICRO PROCESSOR KEY MATRIX 1C502 2 2 sc PROCESSOR 12504 i Vot Up 35453 x aie v 44 385MHz 25 1824 I Voi D uod X501 D206 D207 D208 e e 30620M8A 2K9GP 579545
7. 1 mmo a 47k S m 2 e 1 401 L77 1777 05 zo BUFFER AMP NEZ olx al el a P Js ole 4 Rie S18 NJM2904V 16 SME x 0 560 ojx 1 552 6 h Ed ah l8 9 8 5 7 see 5 i 915 915 x 12401 9401 5 Re 2 Oso 4 90V 010 5 1 63V eee uio e rsa 14 SIS e SHORT m jd 2S8K508NV K52 285 T9 DTCii4BUA E PROTECTION E TERT SS SS B 08 LLATOR INVERTOR eem P TSWOlFU 8 8 42V N LLa 5 7 62V 7 SW CONTROL 8T SW CONTROL ET 5V AVR t 5 09V 4 IC9 RIPPLE T Q29 TAUBBOQE MS PTOLIABR IN R27 5c O A GND 8 1014 aT AVE 2 e RI1O DC 5 IN OUT IN OUT TATSLOSF AT o 3 ape Q23 n W E GND o GND ol m 823 agg Dio 559 HZL SW v R12 22k m E is ofo alg 1 olz 15 o m L72 0372 05 8 4 8 IC13 TP3 O Olu R104 R165 R173 44 85MHz R96 R247 i CE 5 g
8. SEEDY olelolollolelalololol o ooo oo 77 0 Qm O O 0 m 4 a a af a ig eere DTMF 550 75 l a ca d 51 lt 5 ee C557 DECODER T zl 2 929 OF i LC73872M m 9 aa 8 uy 4 vex IC504 558 0 lu lt lt lt 50 S SRS 2 R590 am 1k a BRA TC35453F b 4 R577 15k C577 5 ol ol o 517 8 H 6 1k o R592 JW lk R649 yyy 1k 77 2 n R593 AN Ik R650 NWG 4 1 0 Olu AUDIO PROCESSOR C556 5 2 1 4 rt WAN C526 0 1 9 n 3 1 1E H 8215 p R596 ik R653 ik th i 5 8898 M R654 1k sle R575 C578 6 R599 Ik IC511 El DSZ R600 JW Ik 30620M8A 2K9GP B 44 10 R601 0 R705 47k R602 NWO Y i 1 R603 WD CPU ew B x 056 7 R656 LIMITER 959 9 i 0258 4 R658 4 Tk 4 4 5 y G R659 5262 R660 sy 4 1 0 Olu R66i 9 D 5 4700 1504 R662 20 9 6 ols 923 8663 w R670 1 5 822 52 17 Bae STS R520 R5
9. Transmitter System Outline The transmitter circuit produces and amplifies the de sired frequency directly It FM modulates the carrier signal by means of a varicap diode B VCO PLL Circuit The TK 780 has a VCO for the transmitter and a VCO for the receiver in a sub unit A1 They are housed in a solid shielded case and connected to the TX RX unit A 2 through CN101 One of the VCOs is selected with an ST signal A filtered low noise power supply is used for the VCOs and varicap diodes The VCO for the transmitter is described below It is de signed so that Q103 turns on with a prescribed frequency when a reverse bias is applied to D102 and D107 by using the control voltage CV through CN101 The control voltage is changed by turning the trimmer capacitor IC102 The output from 0103 is applied to the buffer amplifier 0106 to generate a VCO output signal This signal is used as a drive input signal or a local signal of the first mixer Since a signal output from O160 is input to the PLL IC it passes through CN101 and buffer amplifier Q300 and goes to the PLL IC IC300 The modulation signal from CN101 is applied to D109 and passes through C125 and C126 to modulate the carrier The PLL IC uses a fractional N type synthesizer to im prove the C N ratio and lock up speed The VCO output sig nal input to the pin 5 of the PLL IC is divided to produce a comparison frequency according to a channel step This sig nal
10. 3 REGISTER o 3 255 E EW e LT sto AF POWER AMP gt SB SW 2 5 MEIST c ______ ST CC ale A a 2452 POWER ON 0 io EXT DOR TXD2 DEO TATSWSSBSFU A D CONVERTER EM SE e REVERSE oJe 5 DTC114EE POWER OFF 12 97V zi m SP 5 CURRENT Ro 90V 5 Sd 2SK1824 Ics 87 R 5 12V 9 5 M62363FP az as 0 eim D12 4 99V PRoTECTION o E VS d 5 7 TEN vig i 4 R63 BU4094BCFV axe S b 9 pa da eax sono ua a d vol VO8 CODE4 VES SW a E I 8 HSB123 5 ole Sls 2 D m 2 DE _ 18 GND HSB123 e Ice SQO 4 zT OT Ri44 22k 91 m P 6 T RST s NER o og 915 Q 2 9 PROTECTION RBS SHIFT S 9 5 D SET IG 5 DO 1 CODES 1 olg s 8 5 DET AMP SUMMING AMP VIS taid REGISTER 5198 2 E be 3 1 0 XC63 876 Q2
11. NG TUBE PLL VCO X58 4712 70 38 139 C142 TC101 102 CN101 L101 104 L105 L106 L107 109 110 111 R101 102 R103 R104 R105 R106 CK73GB1H102K CC73GCH1H680J CK73GB1H102K CC73GCH1H150J CC73GCH1H470J CK73GB CK73GB CK73FB CC73GC CK73GB 104K CK73GB CC73GC CK73GB CC73GC CK73GB CC73GC CC73GC CK73GB CK73GB CC73GC CC73GCH1H12 CK73GB1H102 CC73GC CC73GCH1H15 CK73GB1H102 CK73GB1H102 05 0384 05 40 5699 05 10 2279 04 140 1005 34 140 6878 67 140 1005 34 140 3978 67 140 1005 34 140 4778 67 RK736B1J470J RK736B1J102J RK736B1J154J RK73GB1J221J RK73GB1J222J RK73GB1J103J RK73GB1J151J RK73GB1J221J CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CH CERAMIC TRI P PC 68PF PC 000PF PC 5PF PC 47PF PC 0 10UF 000 0 47UF PC 0PF PC 470PF PC 000PF PC 6 0PF PC 000PF PC 0 75 PC PC PC 2 000 2 0PF PC 5PF 000PF PC 000PF MER ASSY ELDING CASE ALL FIXED INDUCTOR 10UH ALL FIXED INDUCTOR 68NH ALL FIXED INDUCTOR 10UH ALL FIXED INDUCTOR 39NH ALL FIXED INDUCTOR 10UH ALL FIXED INDUCTOR 47NH P 47 6W 6W 6W P 6W 6W 6W 6W 6W
12. 10k Qs I tw amp 5 OVER 9 9 _ HSB123 HSB123 HSB123 HSB123 HSB123 HSB123 Q5 6 1 100k 931 VOLTAGE 2o PROTECTION 75 dr SW CONTROL Mee e c 0 nec E a amp c C DICHIARE PROTECTION j 10 d 9949 1000 12 90V D16 REVERSE CURRENT PROTECTION RE E 68 A Y C E o S 780 SCH EMATIC DIAG Note Components marked with dot parts of layer 1 X51 6142 XX CONTROL SECTION
13. XIS IS S ISIS n o 7r 12 z 90 E os ox Fl ae Le lee Fes faa os sc pois ay 025 7P 092 306 Les a or Lun Fo o 023 100 015 138 NIN Lo H1 be 09 213 NIN js ja Connect 1 and 4 55 ude LC 1 M a r TS 1 S Tol ES piri PCBOARDVIEWS IK 80 TX RX UNIT 57 6142 2 70 E 72 E3 Component side view J 72 0724 22 B 2 AL gt 59 R530 g 8 s NJ ele C561 0 9511 side 1 Layer 2 Layer 3 4 Foil side M r gt die pi ears Component side NS Ref Address Ref Address Ref Address Ref No Address Ref No Address Ref No Address Ref Address Ref No Address 504 1 511 IC711 7F 0507 111 Q510 0515 12 0503 10 0507 10A Layer 1 IC506 111 512 11N
14. Send GPS Pressing this key causes the transceiver to send a single GPS data GPS Report On Data Group Channel GPS data transmission is made on the Data Group Chan nel in conventional format Received GPS Data Output Any selected sentence can be output through the radio serial port 1 MAP HEADER GPGGA NMEA2 GPGLL GPRMC NMEA 0183 standard command This should be set ac cording to your PC application 2 MAP HEADER KW1 PKLDS This is a Kenwood original sentence which consists of GPGLL Fleet ID Status This item should be set according to your PC application 3 MAP HEADER KW2 PKLID This is a Kenwood original sentence which consists of Fleet ID This should be set according to your PC application Parameters GTC Count Number of Go To data Channel messages to be sent before transmitting a data message if it is being made on Data Group Channel If a radio unit receives a GTC mes sage it will move to the Data Group Channel of the current group Increase this item to make sure the called radio unit moves to the Data Group Channel Random Access Contention When a channel is busy radio unit will not transmit de pending on its Busy Channel Lockout setting As soon as a channel is cleared some transmissions may crash Random access is used to avoid this by employing a random trans mission sequence Number of Retries Number of Retries is th
15. 12dB SINAD are obtained measured EN connecting SG to each point via a 0 01uF capacitor AF VIVM 4 AF level obtained when the AF output level is adjusted for 0 45V 4Q with the front panel AF VOL control Measured with AF voltmeter connected to the external speaker jack receiving a 53dBm SSG signal modulated at 1kHz DEV 3kHz Wide 2 4kHz Semi wide 1 5kHz Narrow Transmitter Section POWER CONTROL UNIT gt lt TX RX UNIT gt UNIT TX RX UNIT MODULE TX RX UNIT W SW N W SW N W SW N W SW N W SW N W SW N W SW N 25dBm E 4 0mVrms 7 0mVrms 33mVrms 370mVrms 430mVrms 460mVrms 80mVrms 1 5dBm 3 5dBm 18dBm 21dBm E3 25W QT 0203 9204 10711 1504 IC506 IC3 ICb d o 1 1C400 1 4 13 6 11 10 2 1 4 3 6 1 2 1 4 K P ER X58 4712 70 1 is set so that MIC input becomes 3kHz Wide 2 4kHz Semi wide 1 5kHz Narrow at 1kHz Wattmeter by 500 2 Transmitting frequency Center frequency 77 780 TERMINAL FUNCTION CN7 TX RX Unit 2 lt gt CN502 TX RX Unit B 2 CN101 VCO lt gt Unit A 2 Function Wide Narrow H Wide TX RX switch H Receive Modulation signal Function Switched transmit input H Transmit RF output Ground 9V input 8V input Low speed data signal Beep NC Power switch Modulation input Control voltage input Receive signal to control unit MIC mute H MIC mute CN501 TX RX
16. Channel selection CH or GRP RX frequency RXF CALL Switches frequency on off B Changes the step value between 5kHz 6 25kHz and 1MHz RX signalling CALL Switches between off OT and DOT B Switches between 1 step and standard A Switches between DOT normal and invert TX frequency Same as RX frequency TX signalling Same as RX signalling 7 3 Flow Chart Self programming mode Channel geting Channel selection C RX f a CVD CALL zs uar cs CV D E CALL CALL signalling CALL CALL CALL 7 4 Memory Reset Mode You can clear all settings you made in self programming mode or you can return to the original display Press A while SELF PROG is displayed will change the display to CLEAR NO Press Channel up down to change the display between CLEAR NO and CLEAR YES e When CLEAR YES is displayed pressing A will set all data to default and ALL CLEAR will appear on the Scan del add DEL ADD RF power HIGH LOW Beat shift YES NO Wide Narrow WIDE 5k WIDE 4k NARROW Compander ON OFF display Press A again to display SELF PROG When CLEAR NO is displayed pressing A will can cel the reset and SELF PROG will be displayed INSTALLATION 1 Accessory Conne
17. MAX CALL gt CALL a LEAL Juss CALL n DTMF xxx s DTMF xxx w DTMF xxx n FFSK xxx ALL s FFSK xxx w 5 tuning SENS 3 point tuning 3 point tuning 3 point tuning 3 point tuning n HRSI xxx ALL s HRSI xxx E w HRSI xxx B 5 point tuning ex RF power high s TONE xxx esc 3 point tuning n LRSI CALL s LRSI xxx w LRSI xxx B w TONE xxx B 3 point tuning B 3 point tuning n SOLT xxx CALL SOLT xxx SOLT B 3 point tuning 3 point tuning B 3 point tuning B 3 point tuning 3 point tuning Squelch level RSSI low level Squelch tight level RSSI high level 46 780 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range SSG Modulation Output 136 to 174MHz Frequency modulation and external modulation 127dBm 0 1hV to greater than 7dBm 100mV Power Meter Input Impedance Operation Frequency Measurement Capability 500 136 to 174MHz more Vicinity of 100W Deviation Meter Frequency Range 136 to 174MHz Digital Volt Meter Measuring Range DVM Accuracy 1 to 20V DC High input impedance for minimum circuit lo
18. D A output Vin VDAref 256 x n VDAref Vin Analog input VDAref D A reference voltage n Serial data value from the microprocessor CPU 29 780 30 CIRCUIT DESCRIPTION Horn Control The horn switch consisting 4 05 controls the horn relay It is supplied by the dealer to provide the external horn alert function O5 disables horn alert turning on when its base is high to inhibit the function Normally the output from IC7 is low and is off the base of O4 is about OV and 04 is off When horn alert is enabled the output from IC7 goes high and Q6 turns on The base current flows through R58 to O4 to turn O4 on Q4 can sink a maximum of 100mA If the operational KAP 1 is used it can drive up to 2A 8C HOR O 1C7 Shift register Fig 15 Horn control PA Switch If the optional KAP 1 is used the PA Public Address function becomes available In this case the signal flow changes as follows me os awa swa ibaa OFF Fig 16 PA switch Power Supply Circuit When the POWER switch on the control unit is pressed the PSW signal goes low This signal is inverted by Q26 and sent to a flip flop IC IC15 This IC outputs a control signal when the PSW goes low When the power turns on pin 1 of IC15 outputs a low signal and turns on The base of 028 goes high O28 turns on SB SW 027 turns on and power SB is supplied to the set This circ
19. MODULAR 1 CALL MIC JACK PROGRAMMABLE OTC101 ALPHANUMERIC FUNCTION KEYS DISPLAY PLL VCO 1 Note Flash memory The firmware program User mode Test mode Tuning mode etc and the data programmed by the FPU KPG 60D for the flash memory is stored in memory When parts are changed program the data again EEPROM a Repair Jig Chassis Use jig A10 4010 02 for repairing the TK 780 The jig facilitates the voltage check when the voltage on the component side TX RX unit A 2 is checked during repairs The tuning data Deviation Squelch etc for the EEPROM is stored in memory When parts are changed readjust the transceiver Common Section Measurement Adjustment Item Condition Test equipment 1 PLL lock 1 Set test mode DVM TX RX 1 TC101 1 5V Receive 0 1 voltage CH CH3 Sig1 Power meter A 2 PTT OFF Receive TC102 1 5V Transmit PTT ON Transmit ificati R k Unit Terminal Parts Method Specifications Rematks 2 CH CH2 Sig1 Check 8 0V or less PTT OFF Receive PTT ON Transmit 780 ADJUSTMENT Receiver Section Measurement Adjustment ltem Condition Test equip
20. Volume Up Down Changes channel Volume up down Note A B C D key is pressed during transmis sion the DTMF corresponding to the key that was pressed is sent LCD indicator SCN Unused Lights at compander AUX Unused TS Lights at RF power low Lights at monitor on SVG Unused M Lights at FFSK 2400 bps LED indicator Red LED Lights during transmission Green LED Lights when there is a carrier Sub LCD indicator SET Appears at shift on Frequency and Signalling The set has been adjusted for the frequencies shown in the following table When required re adjust them follow ing the adjustment procedure to obtain the frequencies you want in actual operation Frequency MHz Channel No RX TX 160 05000 160 10000 146 05000 146 10000 173 95000 173 90000 160 00000 160 00000 160 20000 160 20000 160 40000 160 40000 TX None 100Hz square OT 67 0Hz QT 151 4Hz OT 210 7Hz OT 250 3Hz DOT 023N DOT 023N DOT 7541 DOT 7541 DTMF DEC 159D DTMF ENC 159D None DTMF tone 9 2 tone 321 7 928 1 2 Single tone 1200Hz 5 tone DEC 12345 5 tone 12345 None FFSK 15 FFSK code FFSK code Preparations for Tuning the Transceiver Before attempting to tune the transceiver connect the unit to a suitable power supply Whenever the transmitter is turned the unit must be connected to a su
21. 780 PLL VCO 58 4712 70 SUB UNIT 58 4850 10 Parts No Description PARTS LIST Desti nation Address N Description Desti nation RK73GB1J271J RK73GB1J470J RK73GB1J473J RK73GB1J103J RK73GB1J101J RK73GB1J390J R92 1252 05 1SV283 1SV283 1SV283 1SV214 DTC114EUA 25 508 52 25 508 53 2504081 2SC4215 Y CHIP R 270 1 16W CHIP R 47 1 16W CHIP R 1 16W CHIP R 1 16W CHIP R 1 16W CHIP R 39 1 16W CHIP R 0 1 6W VARIABLE CAPACITANCE DIODE VARIABLE CAPACITANCE DIODE VARIABLE CAPACITANCE DIODE VARIABLE CAPACITANCE DIODE DIGITAL TRANSISTOR FET FET TRANSISTOR TRANSISTOR UB UNIT X58 4850 10 E3 CK73GB1C104K 92 0505 05 RK73GB1J103J R92 1252 05 2SC2412K S CHIP 0 10UF K 10UF 16WV CHIP R 10K J 1 16W CHIP R 00HM J 1 16W TRANSISTOR 780 EXPLODED VIEW cO cN q ANARA 2222 EE l ag ea G G i 2222 lt Parts with the exploded numbers larger than 700 supplied 43 780 PACKING 36 Protection 37 Protection 25 0103 04 25 0720 04 B09 0235 05 10 DC cord 0 3438 05 S v di
22. H12 1391 03 INNER PACKING CASE CK73GB1H H C H 25 0103 04 PROTECTION BAG 125 250 0 07 7368 25 0720 04 PROTECTION BAG 200X350 CC73GCH H52 1569 02 ITEM CARTON CASE CK73GB H52 1931 02 ITEM CARTON CASE CK73GB C C 736B 73GB E E J29 0627 23 BRACKET 03K C73GCH1H180J 73FB1H103K 29 9105 02 C C N33 2606 45 OVAL HEAD MACHINE SCREW CK73FF1C105Z C C N67 3008 46 PAN HEAD SEMS SCREW W 73GB1E103K N87 2606 46 BRAZIER HEAD TAPTITE SCREW T3GB1C104K N87 2612 46 BRAZIER HEAD TAPTITE SCREW 9 0395 05 SCREW SET CK73GB1H102K CK73GB1C104K T07 0246 05 SPEAKER CC73GCH1H151J C C 92 0719 05 T3GB1C104K CK73GB1H102K TK 780 PARTS LIST TX RX UNIT X57 6142 XX Desti nation Desti nation C92 0719 05 ELECTRO 47UF 25WV CC73FCH1HORSB 0 5PF 92 0044 05 CHIP ELE 47UF 10WV 1 CK73GB1H102K 1000 CK73GB1H102K CHIP C 1000PF 1 7 2 0PF C92 0719 05 ELECTRO 47UF 25WV CC73FCH1H1R5B 1 5PF CK73GB1E103K CHIP C 0 0100 CK73GB1H221K 220PF Address Parts No Description Address Parts No Description 92 0722 05 ELECTRO 470UF 1 CC73GCH1H820J 82PF CK73GB1C104K CHIP C 0 10U CC73GCH1H040C 4 0PF CC73GCH1H080D CHIP C 8 0PF CK73GB1E103K 0 010UF C C CK73GB1H471K 470 1 CK73GB1C104K 0 10UF CK73GB1E103K 0 010UF 1 CK73GB1E103K 0 010UF CK73GB1H47
23. Last used revert channel in cludes talkback function Selected with talkback The transceiver reverts to the channel before scanning or the channel that you changed during scan 2 w 5 When you reactivate key programmed to the scan function during scan mode the scan ends The scan icon SCN and SCAN revert channel programmable display goes off Temporarily delete add It is possible to delete or add channel temporarily during scan When scan stops on unnecessary channel for ex ample by interference of the other party activate the delete add function for example press the key then that channel is deleted temporarily and scan re start immediately When you would like to add the deleted channel tempo rarily to scan sequence select the desired deleted channel during scan activate the delete add function for example press the key before scan re start That channel is added temporarily to scan sequence The temporary deleted or added channels are returns to pre set delete add when the transceiver exits from scan mode Keypad operation This parameter selects the default use of the numerical field of the keypad You can select from DTMF Selcall entry Status entry and OST In the case of OST Enter to use the keypad to recall OST directly To recall OST memory 1 to 9 press the OST number directly for 1 second To recall OST memory 10 to 16 press X
24. active low Speaker audio output TX logic signal output active low Speaker mute input Serial control data input MIC mute input active high amp gt R m Serial control data output Data control channel signal input Data channel Low TX logic signal output active low Transmitter sense output Active high Note 1 The functions of A 2 5 A 13 when connector E is connected to CN2 and A 15 when connector E is connected to CN2 are Foot switch input active low changed as described in the jumper chart 2 The functions of A 13 A 14 and A 15 are changed if the con nector E is connected to CN2 or CN4 of the radio CN2 LOK AM MM LOK DTC TXS FSW Connect CN6 of the radio to connector C of the KCT 19 instead of to the internal speaker connector if use external speaker Square plug E09 1571 05 x 3 13 Contact 19 780 INSTALLATION 1 3 Data Equipment Connection 2 Terminal Unit 2 The jumpers must be set to either one for each function Otherwise the radio will not work properly 2 1 External Connector Accessory Terminal Method Function ME AM R167 00 Function Default No Default Yes O Detect signal output Output level 250mVrms standard modulation External hook signal input On hook L Off hook
25. 0501 108 9508 11C 0512 0501 8C 0504 9C D508 9G Layer 2 1 507 9E B 10L 0502 11H B 11C B 118 l 9D D505 9A D518 12A Layer 3 Layer 4 61 T Foil side Yu abe 18 5 E s c OPIN E 1 UF i 1 SSS IE Address Ref No Address Ref EE Ref No Component side Layer 1 Layer 2 Layer 3 4G Layer 4 IC506 4 5 4L 0508 4C 6D 0509 4 5R Foil side 507 710 3 0509 3 50 D510 IC508 3M 711 6G 0510 55 0503 4B 0511 0518 2B Connect 1 and 4 DTA114EE 25 3722 2581132 25 1641 2502394 25 2873 25 4081 DTC314TU DTC114EUA 2SK508NV 2SK1824 DA204U DAN202U MA742 FMW1 TA78LO5F DTA144WE 25 4215 2SB1188 DTC363EU DTA114YUA DTC114EE 2504647 25 2954 D HSM88AS 5 gt gt DTC144EE 25 4619 25 3357 2 Bo 2 Al 1 R G 2SA1362 25 2059 CA 5 s 1 U 25 2412 AN8009M 78085 RH5VL42C TC4S66F LMC7101BIM5 TA75S01F M67741H 32 TA75W558FU TA75W01FU 2416 10512 5 NJ M 2094V W29C020C90 TC75W51FU 5 5 4 s x 2 lt lt 8 8 5 f gt 3 4 iom gt 4 4 1 2 P 12 4 2 1 1 BU4066BCFV LC73872M BU4094BC
26. 4700P 0 022 000PF 00 4 70 TK 780 PARTS LIST TX RX UNIT X57 6142 XX Desti nation Desti Address Parts No Description ation Address Parts No Description L92 0138 05 RRITE CHIP L40 4775 44 ALL FIXED INDUCTOR 47 0NH CK73GB1H103K 0 0 K J J L40 8272 37 ALL FIXED INDUCTOR 0 082UH K J CC73GCH1H270J 27 CC73GCH1H680J HIP C 68P CK73GB1H103K HIP C 0 0 CC73GCH1H101J HIP C UF L40 1092 34 ALL FIXED INDUCTO L34 4459 05 COIL 0 0 CK73GB1H102K HIP C 1 L40 8275 92 SMALL FIXE CK73GB1H103K 114 192 0191 05 FERRITE CK73GB1C104K HIP C L202 204 L34 4641 05 COIL 92 0560 05 1 1207 209 139 1272 05 TOROIDAL C CK73GB1H102K HIP C 1 L211 212 L40 6871 34 SMALL FIXED 606 CK73GB1H122K HIP C L213 L34 4478 05 IR CORE COIL 607 CK73GB1H103K HIP C 010UF L214 L34 4480 05 IR CORE COIL 608 CK73GB1H392K HIP C 3900PF L215 L34 0742 05 IR CORE COIL 609 610 CK73GB1H103K HIP C 0 010UF L216 L34 4482 05 IR CORE COIL 613 92 0606 05 47UF 217 218 134 0742 05 IR CORE 614 CK73GB1H102K HIP C 1000 1219 140 3978 67 ALL FIXED 616 CK73GB1H102K HIP C 1220 140 2288 67 ALL 617 CC73GCH HIP C 1221 140 2778 67 ALL D D 620 CC73GCH1 HIP C 100PF 1222 140 6878 67 ALL 622 623 CK73GB1 HIP C 1000 1223 140
27. 60D 1 Specify a priority channel as a fixed priority channel 2 Make a selected channel a priority channel Scan type according to the priority channel 1 When no priority channel is set Only the non priority channels are scanned If a non priority channel stops temporarily it stops until there is no signal on the channel 2 When priority channel is set Either priority channel is scanned If a non priority channel stops temporarily a priority chan nel signal is detected at certain intervals If a priority channel stops temporarily it stops until there is no signal on the priority channel Revert channel The revert channel is used to transmit during scanning and set by the programming software KPG 60D 1 Priority The transceiver reverts to the priority channel Priority with talkback The transceiver reverts to the priority channel If you press PTT during a resume timer dropout delay time TX dwell time or calling you can transmit on cur rent channel to answer to the call however revert channel is set to priority channel After resume time scan re starts and transmission chan nel is return to priority channel Selected channel The transceiver reverts to the channel before scanning or the channel that you changed during scan 4 Last called channel The transceiver reverts to the last called channel during the scan Last used channel The transceiver reverts to the last used transmitted channel during scan
28. Field Programming Unit menu and help text respec tively PRE INSTALLATION CONSIDERNATIONS 1 UNPACKING Unpack the radio from its shipping container and check for accessory items If any item is missing please contact KENWOOD immediately 2 PRE INSTALLATION CHECKOUT 2 1 Introduction Each radio is adjusted and tested before shipment How ever it is recommended that receiver and transmitter op eration be checked for proper operation before installation 2 2 Testing The radio should be tested complete with all cabling and accessories as they will be connected in the final installa tion Transmitter frequency deviation and power output should be checked as should receiver sensitivity squelch operation and audio output QT equipment operation should be verified 3 PLANNING THE INSTALLATION 3 1 General Inspect the vehicle and determine how and where the radio antenna and accessories will be mounted Plan cable runs for protection against pinching or crush ing wiring and radio installation to prevent overheating 3 2 Antenna The favored location for an antenna is in the center of a large flat conductive area usually at the roof center The trunk lid is preferred bond the trunk lid and vehicle chassis using ground straps to ensure the lid is at chassis ground 3 3 Radio The universal mount bracket allows the radio to be mounted in a variety of ways Be sure the mounting surface is adequate to support the r
29. H Ignition sense input R24 00 Function Default No Default External modulation signal input MIC earth Audio mute signal input Yes Function Default Internal MIC input Signal indicating whether the Default transceiver is transmitting or not TX H Function Default External PTT signal input TX L Squelch signal output Signal logic DTC Default type can select Carrier operate relay or Tone operate relay Active logic level or type can select in the KPG 60D Audio mute signal input 97 TX logic signal output Active logic E level is low Active can be 20 Th selectable in the KPG 60D A MIC mute input 5 fr eo Data control channel signal input BL Data channel L Normal channel H Signal indicating whether the trans TX RX unit A 2 ceiver is transmitting or not Foil side view TX H Foot switch signal input Foot sw on L Foot sw off H TX logic signal output Active logic ERG level is low Active type can be R5 selectable in the KPG 60D Horn alert signal output Signal 2884 output for horn relay drive open collector L level during horn drive Max sink current 100mA L level when AUX A is on Earth TX RX unit A 2 Component side view Power output after power switch DC 13 2V 1
30. HNC H time on Wide Narrow switching H Wide L Narrow Buffer amp HT AF mute time on NC AF mute Power off time on Public address 1 H ON L OFF 8R SW control TR H time on Option board data 1 ON L OFF 8R switch Q10 on time on 8T switch Q13 on time on Output enable 8T SW control KEY H time on 32 45V IF amp 44 85MHz DET output level itch Wide time on PC switch TX 8T time on DET mute KEY H time on APC APC driver APC APC pre driver APC control TOF switch TOF H time W N switch Wide time off Use Function 780 DESCRIPTION 5 Operation Condition Use Function Operation Condition W N switch Wide time on Analog switch MO DEO EMG MI switch 027 TOF switch Inverter SB switch 22 on time on Power switch L time on Q28 on time on DTMF decoder Shift register DTMF detection LR LG KBLC MM1 T R KEY BSFT PA2 output 028 SB SW control on 1 off time on Reset Power on time 1 output Q29 H L switch High power time H Flash ROM 030 SB SW control Power on time on CPU 1 SB SW control DC 20V and over time on EEPROM 032 mute TX time on 5V AVR 5C Con
31. To per form the operation you have to install a GPS receiver with NMEA 0183 output GPS receiver must be installed B Shift It allows you to enable Shift Function key access When Shift key is pressed SFT appears on LCD Squelch Level Press Squelch level key to enter Squelch level adjust ment mode The squelch level can be adjusted by Chan nel down key 2 8 key on the microphone keypad Press Squelch level key again to store the ad justed squelch level Squelch Momentary Press Squelch momentary key to force the squelch unmute MON icon appears on LCD and BUSY LED Green lights If released the squelch unmutes and MON disappears Also BUSY LED Green goes off Squelch Off Press Squelch off key to force the squelch unmute icon appears on LCD and BUSY LED Green lights If the key is pressed again the squelch unmutes and MON disappears Also BUSY LED Green goes off OPERATING FEATURES Status Entry 5 tone It allows the operator to input the status transmit it to the base station Both TX address and Selectable status digit must be programmed to perform the operation Press Status entry key to access Status entry mode TX address of the chan nel appears on LCD Enter the desired code using a numeric keypad If the transceiver does not have the numeric keypad you can use Channel up Channel down key to select the desi
32. Unit B 2 Receive signal from control unit MIC ground External MIC Hook signal H Off hook Ignition signal 13 2V 13 2V 8V TX signal 00 00 N Function Ground Logic power 5V Chip selector signal L Option B clock signal Serial data input Unused terminal Unused terminal LED anode terminal O Shift register LED cathode terminal PLL Shift register DA converter data RSSI PLL unlock detection J501 TX RX Unit B 2 Shift register enable PLL enable ES Unused terminal N N N N Function BLG MIC key backlight control PSB 13 2V E Ground N N converter enable External PLL clock Data control Oo MIC ground MIC MIC signal input HOOK RXD Hook detection CM MIC data detection N N Serial data N Foot switch w Ground 78 780 5 GENERAL Frequency Range 146 to 174MHz Number of Channels Maximum 250 channels Channel Spacing Narrow 12 5kHz Wide 4k 20kHz Wide 5k 25kHz Input 13 2V DC neg
33. call group call stun kill Stun kill are used with only If the option signalling matches a predetermined action will occur If option signalling matches on a group channel which is set up with option signalling the option signalling indicator 3 will flash and option signalling will be released The transpond or alert tone will sound If the selective call alert LED is set up the orange LED will flash While option signalling matches or if option signalling is deactivated when you are transmitting you can mute or unmute ID OT DOT Carrier AND OR Option signalling match conditions can be selected with AND OR logic Alert Transpond Triggers at match with 2 tone Both Triggers only for match with DTMF 2 tone Option AF mute open Triggers at match with 2 tone Both Triggers only for match with Signalling Even if set for OR AF mute cannot be canceled just by a match with DTMF In channels not set with OT DOT signalling is a match just by rceiving the carrier Auto Reset If option signalling matches a group set up with option signalling option signalling is released After matching op tion signalling option signalling will temporarily reset auto matically B Stun Kill If the stun code matches a predetermined action will occur Whether option signalling is activated or not when stun code m
34. can scroll the queue buffer using the Channel up Channel down 2 8 keys on the microphone When you are in Queue mode D or 6 key to toggle the Selcall and Status displays When you are in Queue mode press the C or 4 key to toggle the Code and Selcall Status displays Hold down the D or 6 key to delete the top stack of the Queue buffer Hold down the C or 4 key to cancel Queue mode and return to normal operation Radio Password Backup is done even if the power supply is cut off A lock is not canceled unless a proper password is inputted The character which can be inputted is to 6 digits with the num ber of 0 to 9 A lock is canceled if it is the same as code set up at Optional feature Radio password If the entered radio password is incorrect the Key input error tone sounds and the transceiver remains in LOCK1 Screen 780 OPERATING FEATURES Receive Entry 5 tone Press Receive entry key to enter the desired Selcall code you want to receive This function can be activated only when RX address is set to the channel and select able receive digit has been entered When you enter Receive entry mode the RX address number appears on the LCD To enter Selcall number use the keypad keypad model or use the Channel upl Chan nel down keys to select a number Then press C key to enter the selected number The selected digit will shift left to enter the next digit Pr
35. for 1 second then press 0 to 6 Example Recall OST memory 15 X 5 When OST memory is recalled by keypad 1 to 9 the OST display lights and OST is turned If the keypad is pressed OST is turned off and the OST display goes off Squelch logic signal This signal is useful for external radio control units which require a signal at the time of carrier operate relay or tone operate relay TX sense Select one of the following three output functions for data communication MIC PTT Indicates the state of the microphone PTT MIC PTT on Low MIC PTT off High Ext PTT Indicates the state of the Acc PTT input Ext PTT on 2 Low Ext PTT off 2 High line Indicates the actual transmitter activity TX on 2 Low TX off 2 High 780 10 OPERATING FEATURES Com port Com 0 This function selects the external serila port function at the microphone jack TXD RXD PC programming is ac cepted regardless of this setting Com 1 This function selects the external COM pin serial port function on the KCT 19 accessory jack If the transceiver is installed GPS unit this function must be set up in GPS Com2 This function selects the external COM2 pin serial port function on the KCT 19 accessory RXD2 AHK TXD2 PTT and the external serial port function TXD2 RXD2 4 Details of Features Time out timer The time out timer can be programmed off or in 30 sec onds
36. is compared with the reference frequency which is out put from the VCXO X1 VCXO provides 16 8MHz 2 5ppm 30 to 60 and guarantees stable performance when the temperature changes The output signal from the phase comparator passes through a charge pump and an external active LPF O301 Q302 in the PLL IC to generate a DC VCO control voltage CV Serial data DT CK EP are output from the CPU IC511 and shift register IC8 in the TX RX unit B 2 to control the PLL IC The PLL lock status is always moni tored by the CPU 07 0203 BUFFER RF amp RF Amp POWER AMP 2SC3357 2Sc2954 M67741H 32 Fig 6 Transmitter system 27 780 28 CIRCUIT DESCRIPTION Unlock Circuit During reception the TR signal goes high the KEY signal goes low 010 turns on 011 turns on and a voltage is applied to the collector BR During transmission the TR signal goes low the KEY signal goes high and O13 turns on Q12 turns on and a voltage is applied to 8T The CPU in the TX RX unit B 2 monitors the PLL IC300 LD signal directly When the PLL is unlocked during trans mission the PLL LD signal goes low The CPU detects this signal and makes the KEY signal low When the KEY signal goes low no voltage is applied to and no signal is trans mitted Fig 7 Unlock circuit Power Amplifier Circuit The transmit output signal from the VCO is amplified to a specified lev
37. limit manual dial ID The radio unit will not accept an ID other than these IDs which are entered from the keypad If Inter fleet Call is enabled block ID setting affects each fleet group Status Message Using a 2 digit number you can send and receive a Sta tus message which may be decided in your talk group Each Status may be displayed with 16 alphanumeric characters if programmed in the radio A maximum of 15 received mes sages can be stored in the stack memory and it can be re viewed after reception If the message memory becomes full the oldest one will be erased The stack memory will be cleared by turning radio power off Status 80 99 Special Status numbers from 80 to 99 are reserved for special purposes Entering these statuses from the DTMF keypad can be inhibited Please notice that the following status numbers are used for special purposes 80 89 Reserved for future use 90 Remote kill on Disable all transceiver functions 91 Remote stun on The transceiver cannot operate 92 Turns stun off 93 Spare 94 Acknowledgement status sent when the radio unit is in stun mode 95 98 Reserved for future use 99 Emergency Status Note Remote stun works with stun function also Automatic Status Response If you pre select a status number and leave the radio in the Status Mode it can automatically respond with the se lected status number upon request from the base station The req
38. maxi mum 8 digits of RX address Copy from TX RX address You can select to copy the digit to the memory when you change the channel using Channel up Channel down key The memory represents the code that is displayed by the keypad Or key buffer K8 used by encode format Receive digit in RX address is copied when the chan nel is changed Selcall Status digit in TX address is copied when the channel is changed Encode Code When Special setting is disabled you can select the encode code to transmit when Call 1 to 6 key is pressed You can select up to 3 codes to transmit 3 frame 5 tone code The encode code is transmitted from left to right digit 24 different encode codes are available When Special setting is enabled you can select the encode format setting from 1 to 32 You can select the encode format name configured in encode format menu 780 OPERATING FEATURES Decode Code When Special setting is disabled you can select the decode code setting from 1 to 48 The transceiver tries to decode the selected decode code setting maximum 8 dif ferent settings at the same time When the code matches in 5 tone code menu the transceiver operates as grammed in Decode code menu When Special setting is enabled you can select the decode format setting from 1 to 32 You can select the decode format name configured in decode format menu You can p
39. of the case facing down in your car 1 Remove the control panel and the TX RX unit B 2 con trol section Fig 9 Fig 7 KAP 1 foil side view Public address The signal from pin 13 of IC7 on the TX RX unit A 2 drives PA relay in the KAP 1 and switches the audio power amplifier output between the external PA system through KCT 19 and internal and external speakers To use the PA function R109 on the TX RX unit A 2 must be removed Fig 9 Use the PA function Do not use the PA function 2 Fold the flat cable in the opposite direction Rotate the control section 180 degrees 4 Insert the flat cable into the control section connector CN502 II 5 Mount the control section on the transceiver PEN 99 TX RX UNIT A2 PPE Fig 8 Fig 10 24 780 INSTALLATION 6 Rotate the control panel 180 degrees and mount it on the transceiver Refit the two halves of the case to complete installation Fig 11 8 External Speaker 8 1 KES 3 Option The KES 3 is an external speaker for the 3 5 mm diam eter speaker jack Connection procedure 1 Connect the KES 3 to the 3 5 mm diameter speaker jack on the rear of the transceiver 8 2 KES 4
40. the OST display goes off and encode de code returns to transceivers preset When this key is held down for one second the trans ceiver enters OST select mode In this mode the display shows OST No or OST name which is set to the channel and operator can select one of OST tone pair using Channel up Channel down key If pressed this key again the displayed OST code is memorized to the channel the transceiver exits from the OST select mode returns to normal channel display and OST display 16 kinds of OST tone pairs can be programmed in the operator selectable tone window While in the OST select mode the transceiver does not look back at the priority channel in the scan resume mode Public Address Public address amplifies the microphone audio and out puts it through PA speaker is activated by pressing this key A confirmation tone sounds and the display shows PA PA can be activated at anytime scanning or non scanning The transceiver continues to scan amp receive calls while in PA mode Pressing PTT activated PA and will override an incoming call anytime however no transceiver transmission takes place If this key is pressed again a confirmation tone will sound the display will return to the normal channel or SCAN display and the PA function will turn off B Oueue Press Queue key to toggle Queue mode on or off When it is on you will see the contents of the queue buffer You
41. the MO level and the balance between the MO and TO levels Part of a TO signal is summed with an output signal from pin 3 MO of IC5 and the resulting signal goes to the MD pin of the VCO This signal is applied to a varicap diode in the VCO for direct FM modulation TX RX UNIT A 2 1 1C504 HSDO Audio processor Fig 13 Encode Decode The signal DEO detected by the TX RX unit A 2 passes through two low pass filters of 501 goes to LSDI of the CPU IC511 to decode OT DOT The signal is de coded by a dedicated 507 and the resulting signal is sent to the CPU IC511 as serial data STD The 5 tone signal passes through high pass filter 504 and then through low pass filter C710 After passing through these filters only the audio signal between 300Hz and 3kHz is extracted and input to comparator IC502 comparator converts the input signal into a square wave form 0 and 5V This square waveform is then fed to the HSDI line of CPU IC511 1 501 2 2 1 501 1 2 LPF LPF 1C502 IC710 IC504 Comparator LPF HPF 14 Decode Converter converter IC5 is used to adjust modulation AF volume TV voltage FC reference volt age and PC POWER CONTROL voltage level Adjustment values are sent from the CPU as serial data The D A converter has a resolution of 256 and the following relationship is valid
42. 0 2 3 nH LRSI SSG freq 173 950MHz 4 sL LRSI sC LRSI sH LRSI SSG freq Same as narrow adjustment SSG output Sensitivity value of 12 SINAD SSG 2 4kHz Semi wide 5 wL LRSI wC LRSI wH LRSI SSG freq Same as narrow adjustment SSG output Sensitivity value of 12 SINAD SSG MOD 3 0kHz Wide 780 Item ADJUSTMENT Measurement Adjustment Condition Test equipment Unit Terminal Parts Method Specifications Remarks 5 Squelch Tight 1 Set test mode Select nL SOLT in tuning mode SSG freq 146 050MHz SSG output 109dBm SSG MOD 1 5kHz Narrow 2 nC SOLT SSG freq 160 050M Hz 3 nH SOLT SSG freq 173 950MHz 4 sL SOLT sC SOLT sH SOLT SSG freq Same as narrow adjustment SSG output 109dBm SSG MOD 2 4kHz Semi wide wL SOLT wC SOLT wH SOLT SSG freq Same as narrow adjustment SSG output 109dBm SSG MOD 3 0kHz Wide 6 RSSI High 1 Set test mode Select nL in tuning mode SSG freq 146 0500 Hz SSG output 70dBm SSG MOD 1 5kHz Narrow 2 nC HRSI 550 freq 160 050 2 3 nH HRSI SSG freq 173 950MHz 4 sL HRSI sC HRSI sH HRSI SSG freq 70dBm SSG output Sensitivity value of 12dB SINAD SSG MOD 2 4kHz Semi wi
43. 0 GENERAL INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni cians familiar with similar types of commercial grade com munications equipment It contains all required service in formation for the equipment and is current as of the publica tion data Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions These are issued as required ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment informa tion the full part identification number should be included This applies to all parts components kits or chassis If the part number is not known include the chassis or kit number of which it is a part and a sufficient description of the re quired component for proper identification PERSONNEL SAFETY The following precautions are recommended for person nel safety DO NOT transmit if someone is within two feet 0 6 meter of the antenna DO NOT transmit until all RF connectors are verified se cure and any open connectors are properly terminated SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere equipment should be properly grounded before power up for safe operation e This equipment should be serviced by a qualified techni cian only NOTE The terms Wide and Semi wide this service manual are same as Wide 5k and Wide 4k in the KPG 60D
44. 1 Install the KCT 19 in the transceiver section 2 Insert the KCT 18 lead terminal into pin of the square plug supplied with the KCT 19 then insert the square plug into the KCT 19 connector See the KCT 19 KCT 18 Fig 3 4 2 Modifying the Transceiver Modify the transceiver as follows to turn the power or the Horn Alert or Manual Relay function on and off with the ignition key 1 Remove the lower half of the transceiver case 2 Set jumper resistors 00 R151 and R152 of the TX RX unit A 2 as shown in Table 1 R151 Enable Disable R152 Enable Enable Operation when KCT 18 is connected KCT 18 cannot be connected Power on off and Horn Alert or AUX A on off Horn Alert or AUX A on off Timed power off Enable Power cannot be turned on Disable Table 1 R151 and R152 setup chart Disable Disable p 99 R151 ws TX RX UNIT 5 H ll ES A2 152 19 nue 5 Optional Voice Scrambler Function The optional voice scrambler function can be used by two methods 1 Assign this function to the Scrambler key by using the programming software KPG 60D When the Scrambler key is pressed the indicator comes on and the opti
45. 10 11 12 1220 c 13 14 A B H K L M N TX RX UNIT X57 6142 XX A 2 70 E 72 E3 Ref No Address Ref No Address Ref No Address Ref Address Ref Address Ref No Address Ref No Address cl 9M 1 13 6G 011 7G 0926 10C 01 13 020 8C 031 8C side view J 72 0724 22 2 IC2 13G 1 15 9C 012 7H 027 7 02 13 021 8B 034 8C 12F 7L SS 10E IC201 D D2 N D2 m 780 l 2 3 D24 7 100 Component side 2 D26 5N Layer 1 D27 60 2 028 Layer 3 D30 Layer 4 7 6 Foil side 3 D L 9 3 117 1 T SS R15 72 0724 22 2 gt ddres TX RX UNIT 57 6142 2 70 72 Address Ref No Component side view Foil side J 72 0724 22 A 2 Ls foot ow eor ics o7 zor os 03 130 ic so iam es so zr ics ica 13 os 022 9203 78 6 ec iso ao 023 39 2 7 icr a on 10 sr Ea 76 W Ww R O
46. 1J152J R92 1252 05 R92 1252 05 RK73GB1J473J R92 0670 05 RK73GB1J470J RK73GB1J331J RK73GB1J473J RK73GB1J472J RK73GB1J392J RK73GB1J473J RK73GB1J103J RK73GB1J332J RK73GB1J472J 00HM J 22K J OK 0 OHM 00 OK 2K R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 73GB1J472J 73GB1J392J 73GB1J153J GB1J223J FB2A152J FB2A822J GB1J223J GB1J220J 73GB1J223J 73GB1J104J 73GB1J153J 73GB1J473J 92 1261 05 73GB1J473J T3FB2A100J 2 0670 05 2 1252 05 73GB1J104J 92 0699 05 73GB1J102J 9 9 73GB1J223J 73GB1J104J 92 1215 05 FB2A103J FB2A563J FB2A472J FB2A123J FB2A183J 92 0670 05 92 1252 05 73GB1J103J 7368 7368 7368 736B1J102J 73GB1J474J FB2A103J GB1J 1252 1252 681 92 0670 736819 73081561 73681181 92 1252 05 92 0670 05 92 1252 05 92 1252 05 92 1252 05 73GB1J472J 73GB1J272J 73GB1J150J 73GB1J272J 73GB1J104J 736819 730819 GB1J 92 1252 736819 4 7 3 9K 15K 22K 1 5K 8 2K 22K 22 22 100 15 47 150 47 10 00HM 0 100K 10 1 0K 22K 100K 470 10K 56K E3 TK 780 PARTS LIST TX RX UNIT X57 6142 XX Desti nation Desti nation R224 R92 1252 05 QOHM J RK73GB1J103J OK J R225 RK73GB1J820J 4 R5 RK73G
47. 1K HIP C 470PF CC73GCH1H101J CK73GB1H102K HIP C 1000PF 1 92 0555 05 0 047UF CK73GB1E103K 0 010UF 1 CC73GCH1H221J 220PF CK73GB1H102K HIP C CC73GCH1H100D 0PF CK73GB1H471K HIP C 470PF 92 0585 05 4 7UF CC73GCH1H150J HIP C 15PF 1 92 0606 4 7UF CC73GCH1H180J HIP C 8PF CK73GB1H102 CK73GB1H102K HIP C p CC73GCH 47PF CC73GCH1H150J HIP C 15PF 1 CK73GB1H102 CK73GB1H102K HIP C 1 196 CK73GB1H102 C92 0628 05 HIP TAN CK73GB1H102 CK73GB1H102K HIP C 1 93 0552 05 2 0PF CC73GCH1H270J HIP C CK73GB1E103K 0 010UF CK73GB1C104K HIP C CK73GB1H102 CK73GB1E103K CK73GB1C104K 0 10UF C92 0516 05 HIP TAN CK73GB1E 0 010UF C92 0628 05 HIP TAN CC73GCH 6PF CK73GB1C104K HIP C CC73GCH 2 0PF CK73GB1H471K HIP C CK73GB CK73GB1H471K HIP C CC73GCH CK73GB1E103K HIP C CC73GCH 92 0543 05 HIP TAI CC73GCH CC73GCH1H270J HIP C CC73GCH 092 0712 05 CK73GB CK73GB1E103K HIP CK73GB CK73GB1C104K HIP C CK73GB 92 0543 05 CK73GB CK73GB1H102K HIP C CK73GB 92 0628 05 HIP TAI 10UF CK73GB1H102 CK73GB1C104K HIP C 10 CC73GCH1H101J CK73GB1E103K CK73GB1E103K CK73GB1H471K HIP C CK73GB1H102 CK73GB1C104K HIP C CC73GCH1H270J CK73GB1E103K HIP C CK73GB1H102 CK73GB1H471K CC73GCH1H180J CK73GB1E103K CK73GB1H471 CK73GB1H102K HIP C CC73G
48. 2 and output to the TX RX unit B 2 Wide Narrow Changeover Circuit The W N port pin 11 of the shift register IC7 is used to Switch between ceramic filters When the W N port is high O24 turns on and the ceramic filter SW diode D22 D23 CF1 turns on to receive a Wide signal At the same time 016 turns on and one of the filters is selected so that the wide and narrow audio output levels are equal When the W N port is low O23 turns on and the ceramic filter SW diode D22 D23 CF2 turns on to receive a Narrow signal IC11 IF system 118 T U Si Wide 18 023 N DET Wid i OUT 2 PPH 2 024 N 522 Narrow 023 IC7 11pin Wide H 9 Narrow L 8 28 Wide L 7 Narrow H Fig 3 Wide Narrow changeover circuit XF1 015 2 DEO IC11 MIX IEDET 2nd local OSC Fig 2 Receiver system 780 CIRCUIT DESCRIPTION Signal System The detection signal DEO from the TX RX unit A 2 goes to the audio processor IC504 of the TX RX unit B 2 The signal passes through a filter in the audio processor to adjust the is output to 502 1 502 sums AF the signal returns the resulting Signal to unit A 2 The signal sent to the TX RX unit A 2 is input to the D A converter IC5 The AFO out pu
49. 29 Ol ocola 4 m B w 1 P L 28 Tgp ba 68k D 8 7 oR ooh 8666 o 1 27 8 9 5 x BE m 6 22k C565 1000 5 06V 25 2 LL olo s e oT 5 ry lolo lolol ej 578 5 D S 0 1 10k C610 0 Olu B d IC506 l gt ge d x sd 22005 I S x502 449 ee 3444 R582 MA2S111 ol Tg 9 8304MHz EEPROM 5 DBY 8S 9999 a O V 75501 R713 R712 5 0 UM H gt gt 47k 47k 0 1 a E ola lt gn als x C533 6587 IN R612 4 3 gt S 3 8 8 501 ale 259 i 917 4 7k 2 dies e 5 ale zn o DTA 2 52V ayo 5600 EE Q507 ME 220km 9 5 Sst 6 oss olg 9 ii 9 4 Tk 8 Q502 5 9819 5 7 14 444 R714 HE LET DTC144EE 5 I 41 509 OTS SLOCH 25 4619 B E gt id Q507 RH5VL42C emr SEU R677 22k Re78 10k 5 10k ols ANALOG R564 DTC144EE gt D a 4 85V SW e 4 1505 5 BUFFER AMP 95 RESET TE ppt 4 77 1 D501 503 505 HSB123 or DA204U D507 DAN202U D510 HSC119 D512 517
50. 2J H221J 92 0628 05 CE04EW1A101M CC73GCH1 H020C CK73GB1H471K CC73GCH1 CK73GB CK73GB CK73GB CK73GB CK73GB 092 0507 CK73GB H221J H471K C683K E123K C104K 222 05 H103K 7 0PF D 24PF 43PF 15 220 82 22 22 82PF 3PF 27PF 3PF 8PF 0 010UF 0 15UF 0 10UF 0 22UF 1000PF 0 10 220 6 0 220 0 10 0 22 00 0 10 000 000 220 2 470PF 220PF 470PF 0 068UF 0 012UF 0 10UF 2200PF 4 7UF 0 010UF C C C C C C C C C C C C C C C C C C C 92 0507 05 C C C C C 7368 C73GC 736B 7368 7368 7368 C736C 73GB 73GB 73GB 73GB 73GB 73GB 73GB 73GB C736C 736B 736 736B 736B 73 02 562J 562J 562J 102K H030C 272K 272K H391J H100D H391J 272K H030C 102K 122K 102K 92 0560 05 C104K H1H101J C333K H472K C104K H102K 92 0507 05 102K 472K 223K 102K H1H101J C273K 470PF 1000 1500 0 10UF 0 0 1000PF 4 70 220 0 1092 0 01092 0 10 0 0 0 10UF 0 068UF 1000PF 5600 5600 5600 1000 3 0PF 2700 2700 390PF 10PF 90 2700 3 0PF 1000 1200 1000 10UF 0 10UF 100PF 0 033UF 4700PF 0 10UF 000 4 7UF 000
51. 4 RK73GB1J R320 R92 1252 05 1 R555 RK73GB1J R401 RK73GB1J103J 1 R556 RK73GB1J R402 RK73GB1J153J R558 R92 1252 R402 RK73GB1J822J R562 RK73GB1J R403 RK73GB1J122J 1 R564 92 1252 R404 RK73GB1J473J R566 RK73GB1J R405 R92 1252 05 R567 RK73GB1J R406 RK73GB1J124J 1 R568 RK73GB1J R408 R92 1252 05 1 R569 RK73GB1J R411 RK73GB1J472J R571 572 R92 1252 R413 RK73GB1J473J 1 R573 RK73GB1J R414 R92 1252 05 1 R574 RK73GB1J R501 RK73GB1J472J R575 RK73GB1J R502 RK73GB1J184J R576 RK73GB1J R503 RK73GB1J223J 1 R577 RK73GB1J153J R504 RK73GB1J184J R579 R92 1252 05 R505 RK73GB1J102J R580 RK73GB1J103J R506 R92 1252 05 1 R581 RK73GB1J472J R507 508 RK73GB1J154J 1 R582 R92 1252 05 780 PARTS LIST TX RX UNIT X57 6142 XX Desti nation Desti N nation Address Parts Description Parts No Description R92 1252 05 00H RK73GB1J473J 41K J 1 16W RK73GB1J473J 47K RK73GB1J103J 10K J 1 16W R92 1252 05 RK73GB1J472J 47K J 1 16W RK73GB1J473J 47K RK73GB1J154J 150K 1 16W R92 1368 05 00H RK73GB1J103J 10K 1 16W RK73HB1J102J OK RK73GB1J683J 68K 1 16W R92 1368 05 0 0H RK73GB1J334J 330K 1 16W RK73HB1J102J OK RK73FB2A680J 68 1 10W R92 1252 05 92 1252 05 0 1 16W RK73GB1J224J 220 RK73GB1J392J 3 9K 1 16W RK73 OK 73GB1J562J P 5 6K 1 16W R92 1 00H 92 1252 05 P 0 1 16W RK73 73GB1J472J P 47K J 1 16W
52. 4778 67 ALL C3 63 Q9 C 624 CC73GCH HIP C 1225 192 0193 05 625 CK73GB1 HIP C 1000PF L226 L92 0155 05 RITE CHI 626 CC73GCH1H10 HIP C 100PF L227 L40 3378 67 ALL FIXE 627 CK73GB1 HIP C 1228 140 1575 54 ALL 628 CC73GCH1H10 HIP C 1300 301 140 3371 36 ALL 63 C3 63 630 CK73GB1H102K HIP C 1000PF L302 L40 1005 34 SMALL FIXED C631 634 CC73GCH1H101J HIP C 1303 140 4775 34 SMALL FIXED IN C710 CK73GB1C104K HIP C 0 10UF 1501 508 192 0138 05 FERRITE CHIP 711 712 CK73GB1H222K HIP C 2200PF X1 L77 1864 05 TCXO 16 8MHZ C713 CK73GB1H102K HIP C 1000PF L77 1762 05 CRYSTAL RESONATOR 44 395 2 C714 CC73GCH1H331J L77 1708 05 CRYSTAL RESONATOR 3 579545MHZ C715 CK73GB1H102K HIP C 1000PF L78 0462 05 RESONATOR 9 8304 C718 92 0606 05 4 70 171 0572 05 MCF 44 85MHZ C720 CC73GCH1H470J HIP C 47PF 721 723 CC73GCH1H221J HIP C 220PF R90 0724 05 MULTI COMP RK73GB1J102J CH OK C724 CK73GB1H822K HIP C 8200PF 92 1252 05 CH 00H C726 CK73GB1C104K HIP C 0 10UF RK73GB1J102J CH OK C728 92 0772 05 HIP TAN 10UF R92 1252 05 CH 0 0H R R R R E37 0966 05 PROCESSED LEAD WIRE RK73GB1J102J CH OK 40 5737 05 PIN ASSY R92 1252 05 CH 00H E40 5738 05 PIN ASSY RK73GB1J102J CH OK 40 3247 05 N ASSY R92 1252 05 CH 0 0H 40 5738 N ASSY RK736B1J473J C
53. 5 0 75A jy Note The following parts are not installed at the time of shipping R5 R13 R24 R51 R84 R167 TX logic signal output Active logic level is low Active type can be selectable in the KPG 60D 20 780 INSTALLATION Function PC board view Schematic diagram Function Unit Seria ainput 1 Com1 port must be select DATA GPS function in the KPG 60D Seria a output 1 Com1 port must be select DATA GPS function in the KPG 60D Relay for PA function in KAP 1 control signal PA on H PA off Audio signal input from KAP 1 Option code 1 for voice TX RX A 2 scrambler code 3 Option code 1 for voice TX RX A 2 scrambler code 4 Squelch signal output Signal TX RX A 2 logic type can select Carrier operate relay or Tone operate relay Active logic level or type can select in the KPG 60D Audio signal output to KAP 1 Serial data output Output for internal external speaker Serial data input Earth 3 Optional Board Terminal Terminal is for mounting the option board are provided at the TX RX unit A 2 and TX RX unit B 2 Control section The table below shows the correspondence between the board and terminals Disconnect R529 and R571 in control unit when the scrambler board is attached The table below shown the differences between the schematic terminals and the PC board ter
54. 5 z 51 gt AR 29 86 11 I a lt uns Ps aja 4 vos DTAL14EE INVERTOR Vs 550 MM Q t 4 vra 15 lolo 1 LOK DTC TXS FS m 5 e 5 R5 E o Bog oo sl PERAE cii4ze eis 31 DTC114EE x HO 518 1 ola 93 TCA4013BF ND REVERSE cw 5 rd p a A olg 12 62V are CURRENT 5 SRGA 214 898 Sw J AU Ose 435 MLN 5590 12 85V PROTECTION I 4 1 fe DTA 4 c 3 TXDi W PROTECTION 92 gt DTD114EK 9 sol c 9145 aS I DTA114EE Y Q 1 1 4 Sss i 05 LAO Q6 AMF 1 DAN202U Wo Dx R134 jl jl n FLIP FLOP Q30 31 5 T 3 9 1 5 4 DTC114EE lt x iM mM AF 7 SB SW CONTROL LOK DE A ez MUTE 889 ol IMU ZUR E bx gt RXDI HSB123 al TATSWO1FU GATE o0 B al al R50 1 rh i R74 47k 4 D34 o 5 5 PS an R132 TES 21449 ise D2 D3
55. 6501 lt S 272 TATSW5S5BFU END EN gt TE assiste T sc APTT gt 5 avr a513 LSDI lt LPF praiiaze 189 2SC2873 y gt CONVERTER ue a pales a gt TY ais 1 gt DTC114EE EXT 5 amp avn LEDA LCD Back Light RXCOMI x 5 225 0 DTCli4EE DTAII4EE 76 Receiver Section 780 780 LEVEL DIAGRAM a Radio Frequency gt lt 44 85MHz 455kHz gt lt Audio Frequency gt W 95 0dBm W 99 5dBm SW 94 0dBm SW 98 0dBm N 88 0dBm N 94 5 1 1 W SW N W SW N W SW N W SW N W SW N 118 0dBm 121 0dBm 109 0dBm 106 5dBm 120 5dBm 110 0dBm CF2 62mVrms 30mVrms 820mVrms 820mVrms 16mVrms 0 45Vrms 4 3 5 Q15 1209 IC11 1 2 1C504 1C502 IC5 1C10 L202 41 16 9 2 5 1227 L203 1C202 T xs s 2 al L204 4 L SG input level
56. 80 2 71 5 001 2P 15 15 7P 2P 1 2 82k 12K 220 22 220 15k X57 6142 70 15 22 23 2 D27 30 HSM88AS 235 2 D211 MA4PH633 05 6 10 13 22 DTC114EE Q11 2SA1362 Y 2502394 027 25 1641 5 1C5 6236 IC11 1136 IC201 LMCT101BIMB5 1 4 JE aa d MMC m H RX 0V RF AMP q2o4 TX 0 TAV 4 TX RX 1 Q203 TX O 42V 2Sc2954 533 el 28 3357 27 MA4PH633 C256 1 1 R302 47 A 9 2 T R303 47 wo 2 Qul LAN e ARAU Rl sla 545 818 5 3 5153 oj D i re 910 2 D210 E x FE me EL 5 10 5 4 o oT Y 230 s 2 lt 0 22 2 aros BUPER AME 6 86V HE n E Mouse qeu CETT s E o mE fi 555 5 5 sates Tid 2SKSO8NV K53 U 3122 0 1102 R102 m gla 219 a POWER DET 2 H azo e e 2 9106 0 10u I NTN So POWER DET m ACTIVE amp z 28C4215CY e 47 1SV283 47 Base Y Ky Q M 2SD2394 10 eT D 2 IVE a
57. A HA Unit KAP 1 Option 6 1 Installing the KAP 1 in the Transceiver The Horn Alert max 2A drive and Public Address func tions are enabled by inserting the KAP 1 W1 white black red into CN3 on the TX RX unit A 2 inserting W2 green into CN5 on the TX RX unit 4 2 and connecting the KCT 19 option to CN2 and CN3 of the KAP 1 nstallation procedure 1 Open the upper case of the transceiver 2 Insert the two cables with connectors from the KAP 1 switch unit into the connectors on the transceiver 3 Secure the switch unit board to the chassis with a screw The notch amp in the board must be placed at the front left side 4 Attach the cushion on the top of the KAP 1 switch unit Cushion G13 1710 04 N 9 EN S 9 10 KcT19 Fig 6 6 2 Modifying the Transceiver Horn alert The signal from pin 4 of IC7 on the TX RX unit A 2 turns O4 and on and off and drives 1 HA relay to drive the horn with a maximum of 2A The default output is HR1 The relay open output can be obtained between HR1 and HR2 by removing R1 in the KAP 1 R1 Output form A m wd HR1 Default Enable Disable 23 780 INSTALLATION 7 Fitting the Control Panel Upside Down The TK 780 control panel can be fitted upside down so the transceiver can be mounted with its internal speaker in the upper half
58. B1J105J R226 RK73GB1J472J 9 1 R5 RK73GB1J102J R228 RK73GB1J271J J 1 R5 RK73GB1J 680 R229 RK73GB1J102J J R5 92 1252 05 0 Ref Address Parts No Description Address Parts No Description R230 RK73GB1J180J 1 R5 RK73GB1J102J OK R231 RK73GB1J271J R5 RN73GH1J 91K R232 RK73GB1J222J R5 K73GB1J102J OK R233 RK73GB1J103J 1 R5 K73GB1J103J OK R234 RK73GB1J100J 1 R5 73GH1J333D 33K R235 RK73GB1J222J R519 N73GH1J913D R236 RK73GB1J560J 1 R520 73GH1J683D R237 RK73GB1J470J 1 R521 K73GB1J105J R238 RK73GB1J152J R522 N73GH1J913D R239 RK73FB2A100J R523 K73GB1J154J R240 R92 0685 05 R524 73GH1 R241 RK73FB2A102J R525 RK73GB R246 RK73GB1J182J 526 RK73GB1J R247 RK73GB1J2R7J 1 R527 RK73GB1J R248 RK73GB1J182J 1 R528 RK73GB1J R249 RK73FB2A221J R529 R92 1252 R250 RK73FB2A220J 1 R530 RK73GB1J R250 R92 0670 05 R531 RK73GB1J R251 RK73FB2A221J R532 RK73GB1J R300 303 RK73GB1J470J R533 R92 1252 R304 R92 1252 05 1 R535 RK73GB R305 RK73GB1J103J R536 RN73GH R306 RK73GB1J271J R537 538 RK73GB R307 R92 1252 05 1 R540 RK73GB R308 RK73GB1J101J 1 R541 RK73GB R309 RK73GB1J333J RN73GH R310 RK73GB1J103J 1 RK73GB R311 RK73GB1J271J 1 RK73GB R312 RK73GB1J102J RK73GB R313 RK73GB1J153J RK73GB R314 RK73GB1J273J 1 R548 RK73GB R315 RK73GB1J103J R550 RN73GH R316 RK73GB1J101J R551 RK73GB R317 R92 1252 05 1 R552 RK73GB R318 RK73GB1J471J 1 R553 RK73GB R319 RK73GB1J102J R55
59. B30 2171 05 0520 2 1111 Q501 DTCS14TU 0503 508 509 2SC4617 5 Q511 DTA144WE 0513 28C2873 Y 1 501 503 TA75W558FU 10504 TC35453F IC507 LC73872M IC509 RH5VL42C 1C511 30620M8A 2K9GP 69 D502 MINISMDCO75 02 D508 509 42 D511 830 2151 05 D518 02 279 1 X YO 0502 507 DTC144EE Q510 2SC4619 Q512 515 DTC114EE IC502 51 1 506 BUAOGGBCFV IC508 04094 510 AT29CO20 90TI 512 2416 105 2 5 1 710 711 TAT5SOIF 780 80 780 BLOCK DIAGRAM 00 M67741H 32 POWER TX RX UNIT MODULE TX RX SECTION 7 614 2 0512 9515 DTCii4ER DTCi14EE 4216 Y 2203 0204 256421500 2SC3357 2562954 Dala ET 5C PRE LCD ASSY 58 471 DRIVE DRIVE ANT SW MD 8CL 215 B38 0835 05 819290 aros DAN235E 2SK508NV K538 PLL IC HI O BUFF Br lt UNIT 080 mo
60. C data strobe output Shift Register BU4094BCFV Terminal function TX RX unit 2 IC508 Function AFMSKE FFSK modulation enable Enable active H Strobe Data TXD Serial interface output FFSK data output N Clock 01 LEDR Red LED H ON L OFF LEDG Green LED H ON L OFF Common clock output TX RX unit A 2 KEYBLT Key back light ON OFF Not used MMUTE MIC mute H Mute L Unmute ot used O GND NC ot used NC ot used PA2 Public address control 2 H ON L OFF ash memory RD bus BSHIFT Beat shift H ON L OFF BHE ot used KEY TX power switching H TX L Flash memory WR bus T R TX RX switching H L TX DTMCLK DTMF decode IC clock output Output enable CNTCLK Common clock output TX RX unit B 2 45V 780 SEMOCONDUCTOR DATA DESCRIPTION OF COMPONENTS Terminal function TX RX unit A 2 IC8 Function Strobe TX RX Unit A 2 DATA Clock Use Function DESCRIPTION OF COMPONENTS Operation Condition Audio mute 1 H Mute L Unmute DC amp FC TCXO control Link complete Programmable active H L DET amp External DEO internal DEO Amp Summing amp DI DI and MO addtion VCO shi
61. CH1H47 CK73GB1H471K CC73FCH CK73GB1C104K HIP C CC73GCH1H47 C92 0720 05 LECTRO 100UF CK73GB1H102 CK73FB1E224K HIP C 0 22U CK73GB1E103K CK73GB1H102K 1000 92 0719 05 CK73FB1E224K HIPC 0 22 92 0719 05 CK73GB1H471K 470 93 0558 05 CC73FCH1HORSB 0 5 C93 0562 05 CC73FCH1H020B 2 93 0553 05 CC73FCH1H030B HIPC 3 0PF 93 0603 05 CK73GB1H471K HIP C 470PF 93 0666 05 CK73GB1H102K HIP C 1000PF CC73FCH1HO40C CK73GB1H471K 470 93 0556 05 780 TX RX UNIT X57 6142 XX Parts No Description PARTS LIST Desti nation Address N Description Desti nation 93 0557 05 93 0666 05 93 0668 05 93 0562 05 CC73GCH1H221J CC73GCH 93 0564 CC73GCH CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC CC73GC 92 0565 CK73GB CC73GC CC73GC CC73GC CC73GC CK73GB 92 0511 CK73GB CK73GB CK73GB CK73GB 92 0514 05 8209 5 2209 330 820 470 820 470 470 0600 R5C 060D 4709 2709 H101J 104 CC73GCH1H060D 92 0514 05 CK73FB1E104K C92 0002 05 CK73 CK73 CK73 C92 0628 05 CC73 CC73 FF1C FB1E GB1H FCH1 FCH1 05 04K 102 H10
62. FV TA31136FN M62363FP 29 020 90 TC35453F L ____ ____ ____ ____ ___ ____ R 05020 T SCHEMATIC DIAGRAM 780
63. H 47 40 3247 PIN ASSY RK73GB1J CH OK 40 3246 PIN ASSY RK73GB1J CH E40 5982 FLAT CABLE CONNECTOR R92 1252 0 CH E40 5823 FLAT CABLE CONNECTOR RK73GB CH E40 5982 FLAT CABLE CONNECTOR RK73GB CH 11 0442 3 50 JACK RK73GB CH E08 0877 MODULAR JACK RK73GB CH RK73GB CH F20 3321 04 INSULATING SHEET RK73GB CH RK73GB CH J31 0543 05 COLLAR LH 5 1 5 RK73GB1J473J CH 172 0372 05 92 1252 05 CH 172 0998 05 CERAMIC FILTER RK73GB1J220J CH 172 0376 05 CERAMIC FILTER RK73GB1J104J CH 172 0986 05 CERAMIC FILTER RK736B1J474J CH 140 1005 34 SMALL FIXED INDUCTOR 10UH RK73GB1J153J CH 780 UNIT 57 6142 Parts No Description PARTS LIST Desti nation Address N Parts No Description Desti nation R92 1252 05 RK73GB1J223J RK73GB1J R92 1252 0 RK73GB1J1 RK73GB1J RK73GB1J RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB 92 1252 0 Rk736B1J RK73GB RK73GB RK73GB R92 1252 0 RK73GB1J472J RK73GB1J223J RK73GB1J101J R92 1252 05 R92 1252 05 RK73GB1J103J RK73GB1J101J RK73GB1J390J RK73GB1J102J R92 1252 05 RK73GB1J473J RK73GB1J102J RK73GB1J153J RK73GB1J333J RK73GB1J561J RK73GB1J473J RK73GB1J102J RK73GB1J122J R92 1252 05 R92 1252 05 RK73GB1J2R2J RK73GB1J472J R92 1252 05 RK73GB1J181J RK73GB1J473J RK73GB
64. NIT 57 6142 PLL VCO 58 4712 70 Desti nation Description 09 010 C11 C12 C13 C14 15 201 202 C300 C400 C401 C501 C502 C503 C504 C506 C507 C508 C509 C510 C510 C511 C512 C513 710 711 A78L05F LA4422 A31136FN A78L05F AN8009M 78085 C4013BF N LMC7101BIM5 GN2011 Q SA7025DK M67741H 32 NJM2904V A75W558FU C75W51FU A75W558FU C35453F BU4066BCFV 1273872 BUA094BCFV RH5VLA2C AT29C020 90TI W29C020C90 30620M8A 2K9GP 2416 10512 5 78105 75501 25 1824 2SC2412K S 2562412 DTD114E DTC114EE 25 4215 DTC363EU DTA114YUA DTC114EE 2SA1362 Y 2SB1132 0 R DTC114EE 2SC2059K P DTC144EE 2902412 5 25 1824 2502394 2581188 0 FMW DTC114EE DTA114EE DTC144EE DTA114EE 2SA1641 S T DTC114EE DTA114EE DTC114EE 25 1824 2503357 2562954 2564215 2SC3722K S DTC114EE DTC314TU RANS RANS RANS RANS DIGITAI DIGITAI R R R L TRANS L TRANS L TRANS L TRANS STOR L TRANS L TRANS L TRANS STOR STOR STOR STOR L TRANSISTOR L TRANSISTOR DTC144EE 2504617 DTC144EE 2SC4617 S 25 4619 DTA144WE DTC114EE 2SC2873 Y DTC114EE 212 0702 05 TRANSISTOR TOR TRANSISTOR TOR TOR TRANS TRANS TOR TRANS
65. O BOX 22745 2201 East Dominguez Street Long Beach CA 90801 5745 U S A KENWOOD ELECTRONICS CANADA INC 6070 Kestrel Road Mississauga Ontario Canada L5T 158 KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembr cker Str 15 63150 Heusenstamm Germany KENWOOD ELECTRONICS BELGIUM N V Leuvensesteenweg 248 J 1800 Vilvoorde Belgium KENWOOD ELECTRONICS FRANCE S A 13 Boulevard Ney 75018 Paris France KENWOOD ELECTRONICS U K LIMITED KENWOOD House Dwight Road Watford Herts WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B V Amsterdamseweg 37 1422 AC Uithoorn The Netherlands KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Centrecourt Estate North Ryde N S W 2113 Australia KENWOOD ELECTRONICS HONG KONG LTD Unit 3712 3724 Level 37 Tower one Metroplaza 223 Hing Fong Road Kwai Fong N T Hong Kong ay KENWOOD ELECTRONICS TECHNOLOGIES S PTE LTD C0 Sales Marketing Division 1 Ang Mo Kio Street 63 Singapore 569110
66. OOK RXD y 3 MIC yal 3 ME PTTZTXD aio Q501 D507 4 225 DTC314TU DAN202U D505 SL ow KH A HSB123 x al a A els cl ol D503 aso ome I YAH HsB123 XF 5 2 30V JE MIC MUTE 21213 Q 223 7 1502 D502 5 n o D D o 5 5 2 4 9 ol o fa 5 1 11V E D501 5 NT i MPTT E S a soie D504 5 E HSB123 R571 1 o S 5 06V 259 5 20 RXAO D501 SURGE 4 BUFFER AMP 7 e l D504 ABSORPTION 16 ESO RXAI EET 16 17 11 GND 5501 i 2 m 2 T 529 oT d H 8 1 1006 3 j 5 4 8 7 PSW n ot ofe a sav ETAS P TERT 9 6 i 1 5 2 R90 0724 05 3 579545MHz 5 TC75W51FU R720 BU4094BCF b 1 SHIFT 10 3 E ERBIO 1 4 94V 68k REGISTER T 2 i C508 IM 1 2 e o 2 3 3 o o O 1 0 10 4 5 4 o R533 FLASH ROM 6 6 H 625 osx 4 x 4 5 R519 C515 0 AT29CO20 90T1 SOUND pusasasau EV pen al lt 525 cl o sl
67. OPERATING FEATURES B TOT pre alert The transceiver has TOT pre alert timer This param eter selects the time at which the transceiver generates TOT pre alert tone before TOT is expired TOT will be expired when the selected time passes from a TOT pre alert tone B TOT re key time The transceiver has TOT re key timer This timer is the time you can not transmit after TOT exceeded After TOT re key time expired you can transmit again B TOT reset time The transceiver has TOT reset timer This timer is the minimum wait time allowed during a transmission that will reset the TOT count TOT reset time causes the TOT to continue even after PTT is released unless the TOT reset timer has ex pired OST Operator Selectable Tone The transceiver is capable to have OST function and 16 tone pair QT DOT with max 10 digit name for each tone pair OST back up The transceiver is programmable the selected OST code is memorized or not If you set to Disable no memo rized the OST function always starts at off Clear to transpond The transceiver waits the transpond of 5 tone 2 tone if channel is busy until channel open This feature prevents the interference to other party 5 Option Signalling DTMF 2 Tone Built in decoder is available for option signalling Built in 2 tone decoder is available for option signalling It is possible to use individual
68. OUT 9 8304MHz System clock KEY5 KEY7 Key matrix data input 5 7 VSS GND 07 00 Flash memory XIN 9 8304MHz System clock DTMDAT DTMF decode data VCC 5V AUXDTC External DTC input IGN Ignition input MICBLC MIC back light control output AFTRD FFSK modulation data output timing pulse input POWSW Power switch input ANLSOL Squelch level input A FFSK demodulation data input tim ing pulse input MIC key data output PTT PTT switch input Received signal strength indicator input PLL IC clock output GND P data output Low speed data input DT FFSK demodulation data input 5 EG1 AF IC register switching data output 1 5 EG2 AF IC register switching data output 2 m gt DAT EEPROM data output Shift register data strobe output Control unit 2 D A converter data strobe output rimi m gt gt FCLR FFSK flame reset output Shift register data strobe output TX RX unit RXCOM2 O O O O External hook input External serial interface input TXCOM2 External PTT input External serial interface output TXCOM1 External serial interface output RXCOM1 External serial interface input LD PLL unlock detect input AF I
69. Option The KES 4 is an external speaker used with the acces connection cable Connection procedure 1 Install the KCT 19 in the transceiver See the KCT 19 section 2 Insert the crimp terminal into the square plug supplied with the KCT 19 3 Connect CN5 of the transceiver to connector C of the KCT 19 instead of to the internal speaker connector 12 lead Crimp terminal Black White lead E23 0613 05 Fig 13 25 780 CIRCUIT DESCRIPTION Frequency Configuration The TX RX unit A 2 incorporates aVCO based on a frac tional N type PLL synthesizer system that allows channel step of 5 6 and 25kHz to be selected The incoming signal from the antenna is mixed with a first local oscillation fre quency to produce a first intermediate frequency of 44 85MHz The signal is then mixed with a second local oscillation frequency of 44 395MHz to produce a second intermediate frequency of 455kHz This is called a double conversion system The TX RX unit A 2 contains a wide narrow MCF and CFs The transmit signal is produced by the PLL circuit for direction oscillation and division The signal output from the VCO is amplified by a straight amplifier and transmitted CF 455kHz Narrow 146 174MHz NV 1st MCF MIX 44 85MHz OAFO 16 8MHz Fig 1 Frequency configuration Receiver System Outline The incoming signal from the antenna passes through a low pas
70. PF AMP SOS C5AT n m Z 9 IC501 0 0220 wo bx Le 256 1000p ese PELA Q503 E m 7 G ola 1 2504617 LIMITER x 5 VOL VOL o o ale la BUSY 2 a oo 2 UP DN 815 eso Age 912 325 246 ibi es 5 z 27A 0259 gt D DEP x ded a508 a Rso4 M 4 2 XM 25 4617 5 R667 rl 9 9 414 MONI B C a T 1 5 180 LED SW 95 Q 4 5 REFERENCE C540 R548 C553 R569 C574 LED Sw 5 aya 2 a 9 B30 2171 05 6 D CALL CH CH VOLTAGE 270p 18k 4700p 33k 0 lu n DN P goiaz ule R526 wo CN501 814 33g BUFFER iis ee D510 pu km 518 wn ERE SSE 2 579 ay 100k elg HF 034 5 B30 2151 05 BACKLIGHT Q515 4 k Q511 1 10 i 2503 505 OVER CURRENT PROTECTION 2 0509 TX 1 95V 9 3 DTC114EE 2 praiaawe FSW SW SURGE oT 2504617 8 DTCIi4EE is 1 i3 p ABSORPTION spe 3 2 S 925 4 D518 878 CONSTANT CURRENT H
71. T ON MIC seisitivity check Set test mode Sig1 AG 1kHz AmV ON QT deviation 1 Set test mode Select OT in tuning mode nL Deviation meter filter LPF 3kHz HPF OFF PIT ON 2 nC OT PTT ON 3 nH OT PTT ON 4 sQT ON 5 w PTT ON 10 DOT deviation 1 Set test mode Select DOT in tuning mode nL DOT Deviation meter filter LPF 3kHz HPF OFF PIT ON nC DOT TT ON nH DOT PTT ON s DOT PTT ON w DOT PTT ON Power meter Deviation meter Oscilloscope AF VIVM AG Rear panel ANT 4 1kHz Wide 3 3kHz Semi wide 2 05kHz Narrow According to the larger 0Hz 50Hz Wide Semi wide Narrow X3kHzt0 2kHz Wide 2 4kHz 0 1kHz Semi wide 1 5kHzt0 05kHz Narrow 0 75kHz Wide 0 60kHz Semi wide 0 35kHz Narrow 50Hz Wide Semi wide Narrow 0 75kHz Wide 0 60kHz Semi wide 0 35kHz Narrow 50Hz Wide Semi wide Narrow 780 ADJUSTMENT Measurement Adjustment Specifications Remarks Item Condition Unit Terminal Parts Method Power meter Rear ANT 3 0kHz Wide 0 2kHz Wide Semi wide 2 4kHz Semi wide 0 1kHz Narrow 1 5kHz Narrow 11 DTMF 1 Set test mode deviation Select n in tuning mode Deviation panel Deviation met
72. TSV262x3 916 MHz DTCIAAER 8 e CH UP BUAOSABCFV LEVEL 1C201 wen BEVEL LMC7101B1IM5 KEY sc 5 Down 12508 BU4094BCPV wr i618 ate ALL 5c gt 144422 TATSWS58PU AP set CLEAR eee 1950 1 500 gt CODE gt Ea z ai Le 2 EMG 8613 2V 152 1C502 1 2 KBLC Te4s er i P gt E MUTE BSPT HSDI mE as sw SB lt aa SP 5 s D lt MM DTC363EU DTATI14YUA p APRTM AFO p RXCOM2 MDAT N DAT gt osci MDE ME 5 gt 9511 m murg PAN2O2U AUM js DTA144WE DTDAT lt PSW DTSTD DECODR RXCOM2 Ica T R S gt SPI EXT TAT5W558BT SB c jer lt aa7 sy 2541841 5 T 2504617 8 LC 5 5 SB p lt 1 DTCil4BE lt AVR mao e 382 gos m D511C1 2 m gt T DTCii4EE NOISR NOISE NOISE ASQL lt per lt CRFCLK gt 2SAi362 Y sc DT ec AYR B POLY B O m lt BR lt BC Sw RSSDE 165 IC13 D24 LD 62363 AN8009M MINISMPCOTS 02 TAR psio DE lt BUSY GREEN ew 19 ES a26 B82 5O DTALL4EE TC4013BF N D511 e 0508 gt TATSLO5F TATSLOSF 16501 1
73. VHF FM TRANSCEIVER 780 SERVICE MANUAL REVISED versions KENWOOD 2002 2 PRINTED IN JAPAN B51 8523 10 N 388 Panel assy A62 0642 03 Cabinet Upper A01 2165 23 This Service Manual was revised based on the service manual as per parts No B51 8523 00 in order to include new variants with the following destination codes E3 Key top K29 9105 02 GENERAL nennen 2 OPERATING FEATURES 3 REALIGNMENT eren 16 INSTALLATION rains 19 CIRCUIT DESCRIPTION eene 26 SEMICONDUCTOR 31 DESCRIPTION OF COMPONENTS 32 PARTS LIST menn 34 EXPLODED VIEW rrr rtr 43 PACKING einn orn 44 ADJUSTMENT inne 45 CONTENTS PC BOARD VIEWS PLL VCO X58 4712 70 54 SUB UNIT 58 4850 10 54 TX RX UNIT X57 6142 XX A 2 55 TX RX UNIT X57 6142 XX B 2 61 SCHEMATIC DIAGRAM 65 BLOCK DIAGRAMI eene 73 LEVEL DIAGRAM tnis 76 TERMINAL FUNCTION eene 78 SPECIFICATIONS 79 78
74. ading Oscilloscope DC through 30MHz High Sensitivity Frequency Counter Frequency Range Frequency Stability 10Hz to 1000MHz 0 2ppm or less Ammeter 20A AF Volt Meter AF VIVM Frequency Range Voltage Range 50Hz to 10kHz 1mV to 10V Audio Generator AG Frequency Range Output 20Hz to 20kHz or more 1V Capability Input Level Distortion Meter 396 or less at 1kHz 50mV to 10Vrms 40 Dummy Load Approx 40 10W or more Regulated Power Supply Tuning cable E30 3383 05 Adapter cable E30 3383 05 is required for injecting an audio if PC tuning is used See PC Mode section for the connection Lead wire 9 MIC Shiel wire 13 2V approx 20A adjustable from 9 to 20V Useful if ammeter requipped Test cable for microphone input E30 3360 08 GREEN MIC connector Front view 8 1 PSB PTT ME MIC HOOK CM 47 780 ADJUSTMENT Adjustment Location B Adjustment Point B Switch BUSY VOLUME PRIORITY AUXILIAY TX LED UP MONITOR SERVICE HANDSET VOLUME SUB DOWN DISPLAY SCAN MAIL DC SOURCE el CHANNEL UP gt CDD CCALL
75. adio s weight Allow sufficient space around the radio for air cooling Position the radio close enough to the vehicle operator to permit easy access to the controls when driving 3 4 DC Power and wiring 1 This radio may be installed in negative ground electrical systems only Reverse polarity will cause the cable fuse to blow Check the vehicle ground polarity before installa tion to prevent wasted time and effort 2 Connect the positive power lead directly to the vehicle battery positive terminal Connecting the Positive lead to any other positive voltage source in the vehicle is not rec ommended CAUTION If DC power is to be controlled by the vehicle ignition switch a switching relay should be used to switch the posi tive power lead The vehicle ignition switch then controls DC to the relay coil 3 Connect the ground lead directly to the battery negative terminal 4 The cable provided with the radio is sufficient to handle the maximum radio current demand If the cable must be extended be sure the additional wire is sufficient for the current to be carried and length of the added lead 780 GENERAL OPERATING FEATURES 4 INSTALLATION PLANNING CONTROL STATIONS 4 1 Antenna system Control station The antenna system selection depends on many factors and is beyond the scope of this manual Your KENWOOD dealer can help you select an antenna sys tem that will best serve your particular needs 4 2 Radio
76. and PROGRAM is displayed on the LCD When data transmitting from transceiver the red LED is blinking When data receiving to transceiver the green LED is blinking Notes e The data stored in the personal computer must match model type when it is written into the flash memory Change the TK 780 to mode then attach the interface cable 5 3 KPG 46 Description PC programming interface cable Option The 46 is required to interface the TK 780 to the computer It has a circuit in its D subconnector 25 pin case that converts the RS 232C logic level to the TTL level The KPG 46 connects the modular microphone jack of the TK 780 to the computers RS 232C serial port 5 4 Programming Software KPG 60D Description The KPG 60D is the programming software for the trans ceiver supplied on two 3 5 floppy disks This software runs under MS Windows 95 or later on an IBM PC or compatible machine The data can be input to or read from the transceiver and edited on the screen The programmed or edited data can be printed out It is also possible to tune the transceiver We recommend that install the KPG 60D for example to hard disk first then use it 780 REALIGNMENT 5 5 Programming With IBM PC If data is transferred to the transceiver from an IBM PC with the KPG 60D the destination data basic radio informa tion for each set can be modified Normally it is not neces sary to modify the destination data
77. as been enabled re moving and replacing the microphone on the hook has no effect for decoding OT DOT and option signalling Timed power off This function works as Automatic Power Switch Off Timed power off timer starts from the ignition off After the timer expires the radio will automatically turn off The timer will be reset if the ignition is turned on and off This function requires ignition sense Connect the igni tion line to the 9 pin connector which is located at the rear of the radio After the timer expires press the power switch to turn on the radio If you configured the 5 tone model the transceiver ex ecutes the encode script defined in KPG 60D After the en code script is finished the transceiver turns off itself Horn alert If you are called from the base station using 2 tone DTMF 5 tone while you are away from your transceiver you will be alerted by the vehicle horn or some other type of external alert To turn horn alert function on press the Horn Alert key Either continuous or non continuous operation can be set by the FPU The horn alert port is enabled or disabled as follows Off hook horn alert Hook off Hook on Enable Disable Non continuous Pulse The horn alert port HOR is turned on and off as follows HOR 0 58 0 55 0 58 0 55 0 58 Continuous Horn alert be reset by setting an expiration time from the FPU or setting off hook 780
78. atches on any channel the transceiver will be come stun or kill While stun is active LOCK2 appears if the stun code code is received stun will disactive While kill is ac tive ERROR appears the transceiver will be disable all functions The transceiver must be reprogrammed by the FPU KPG 60D to operation again 6 Alphanumeric Two way Paging Function Digital Message System DMS General The Alphanumeric Two way Paging Function DMS is a Kenwood proprietary protocol It enables a variety of paging functions ID Construction A radio unit ID is defined by a combination of 3 digit Fleet and 4 digit ID numbers Each radio unit must be assigned its own Fleet and ID numbers B PTT ID A pre programmed unique ID can be sent at the begin ning of transmission and or the end of transmission to iden tify which radio unit is on air 11 780 12 OPERATING FEATURES Selective Call SELCALL This is a voice call to a particular individual or group of stations Example of call types 100 ALL Group Call All the units whose fleet number is 100 are called 100 1000 Individual Call The unit whose the fleet number is 100 and ID num ber is 1000 is called ALL ALL Broadcast Call All the units are called ALL 1000 Supervisor Call All ID 1000 are called regardless of their fleet number Unit ID Encode Block Encode ID Block can be set to
79. ative ground Current Drain i ket 0 4A on standby 1 0A on receive on transmit on transmit Temperature Range 30 to 60 Frequency Stability 2 5ppm Dimensions amp Weight 140 W x 40H x 145 D mm 0 94kg RECEIVER Measurements made per ETS standard RF Input Impedance 500 Sensitivity 12dB SINAD 0 25uV Wide 8088 Narrow 7048 Intermodulation 70dB Spurious and Image Rejection 80dB Audio Power Output at 40 less than 10 distortion Channel Frequency Spread 28MHz TRANSMITTER Measurements made per ETS standard RF Power 5 to 25W 1 to 5W Spurious Emission lt 1GHz Less than 36dBm gt 1GHz Less than 30dBm Modulation Limitting Narrow 2 5kHz Wide 4k 4kHz Wide 5k 5kHz s Wide 50dB Narrow 45dB Microphone Impedance 6000 Audio Distortion Less than 396 Channel Frequency Spread 28MHz 79 780 KENWOOD CORPORATION 14 6 Dogenzaka 1 chome Shibuya ku Tokyo 150 8501 Japan KENWOOD SERVICE CORPORATION P
80. because their values are determined automatically when the frequency range fre quency type is set The values should be modified only if necessary Data can be programmed into the flash memory in RS 232C format via the modular microphone jack KPG 60D instruction manual parts No B62 1315 XX 6 Firmware Programming Mode 6 1 Preface Flash memory is mounted on the TK 780 This allows the TK 780 to be upgraded when new features are released in the future For details on how to obtain the firmware con tact Customer Service 6 2 Connection Procedure Connect the TK 780 to the personal computer IBM PC or compatible with the interface cable KPG 46 Connection is the same as in the PC Mode 6 3 Programming 1 Start up the programming software Fpro exe 2 Set the communications speed normally 57600 bps and communications port in the configuration item 3 Set the firmware to be updated by File name item 4 Turn the TK 780 Power ON with the A switch held down Hold the switch down until the display changes to PROG 57600 When PROG 57600 appears release your finger from the switch 5 Check the connection between the TK 780 and the per sonal computer and make sure that the TK 780 is in the Program mode 6 Press write button in the window A window opens on the display to indicate progress of writing When the TK 780 starts to receive data the P icon is blinking 7 If writing ends successfully
81. bps Recommended for repeater operation 2400bps Data communication is made in 2400bps The communi cation area is narrower than 1200bps but it will decrease the data traffic Data rate 2400bps may not work prop erly depending on the repeater s characteristic Inter Fleet Call Inter fleet calls allow a radio of one fleet number to call a radio with a different fleet number radio users can manually dial a unit ID with a different fleet number Status Short Long Message on Data Group Channel Status Short Long Message transmission is made whether on the Data Group Channel Status Short Unit ID Message Serial Output Whether a received Status Short message or PTT ID is outputed or not to serial port 780 OPERATING FEATURES GPS Report A NMEA 0183 GPS unit must be installed GPS Report Mode GPS data can be sent automatically or upon request Manually sending GPS data works regardless of this setting Auto GPS data is sent both automatically and by re quest GPS Auto TX Interval and GPS Time Mark must be adjusted if required Poll GPS data is sent upon request from dispatcher GPS Report Interval Interval time between automatic GPS data transmis sions GPS Time Mark Per Mobile The amount of time from the 0 zero minute of the stan dardized GPS UTC time to starting the first transmission of GPS data must be set to a different value for each radio unit to avoid a transmission crash
82. ceive the receive code after the modification Selectable Selcall Digit Select the check box to change selcall code maximum 8 digits manually when transmitting encode code You can not select selectable selcall digit and selectable status digit at the same time For example the transceiver receives 5 tone code 59401 when you have 4th bth digit checked in select able selcall digit menu In this case 01 is stored as selcall Press Selcall entry key or Keypad operation to enter selcall entry mode When you enter selcall entry mode you can change the selcall code 01 You can transmit the selcall after the modification Selectable Status Digit Select the check box to change status code maximum 8 digits manually when transmitting encode code You can not select selectable selcall digit and selectable status digit at the same time For example the transceiver receives 5 tone code 5940167 when you have 6th and 7th digit checked in se lectable status digit menu Press Selcall entry key or Keypad operation to enter status entry mode When you enter status entry mode you can change the status code 67 You can transmit the sta tus code after the modification Automatic Close It compares the selected digits of RX address code in channel menu when the transceiver receives 5 tone signal ling If the selected digits matches to the received 5 tone code the transceiver closes monitor You can select
83. cription Dosti TK 780 TX RX UNIT 57 6142 70 71 A01 2165 23 CABINET D511 B30 2151 05 LED RED GREEN A01 2166 23 CABINET D512 517 B30 2171 05 LED D A62 0642 03 PANEL ASSY Parts No Description C1 15 CK73GB1H102K PC B09 0235 05 CAP C16 92 0507 05 838 0835 05 LCD ASSY C17 CK73GB1C104K PC 42 5999 14 RATING LABEL C92 0507 05 P TAN B62 1438 10 INSTRUCTION MANUAL C PC 72 1998 14 MODEL NAME PLATE PC B72 2082 04 MODEL NAME PLATE PC A E30 3340 05 DC CORD RADIO E30 3405 05 ANTENNA CABLE BNC E30 3438 05 DC CORD ACC E37 0789 05 FLAT CABLE CONT TX RX E37 0790 25 LEAD WIRE WITH CONNECTOR SP F10 2234 04 SHIELDING COVER APC AVR F10 2280 12 SHIELDING COVER F10 2354 03 SHIELDING PLATE LOWER PM F10 2355 04 SHIELDING COVER UPPER PM 20 1192 04 NSULATING SHEET CONT F52 0006 05 FUSE BLADE 10A G02 0791 04 FLAT SPRING AF APC AVR G02 0862 14 ARTH SPRING ANT G02 0897 05 ARTH SPRING UPPER PM 0 1221 04 FIBROUS SHEET SIDE 0 1222 14 FIBROUS SHEET UP DOWN 092 0 1223 14 FIBROUS SHEET SHIELD CASE 1 4068 04 HEET CONT 92 0546 05 3 1468 04 USHION DC CODE CK73GB1E103K 3 1839 04 USHION SHIELD CK73GB1H102K C C S C C C 3 1873 04 USHION SP 92 0507 05 92 0004 05 653 0796 04 PACKING PHONE JACK CK73GB1H H10 6618 12 POLYSTYRENE FOAMED FIXTURE CK73FF1C1 H10 6619 12 POLYSTYRENE FOAMED FIXTURE R CK73GB1H
84. ction Cable KCT 19 Option The KCT 19 is an accessory connection cable for con necting external equipment The connector has 15 pins and the necessary signal lines are selected for use 1 1 Installing the KCT 19 in the transceiver 1 Remove the upper and lower halves of the transceiver case and lift the DC cord bushing 5 from the chassis 2 Remove the pad as shown in Figure 1 amp Insert the KCT 19 cable into the chassis The wire harness band must be inside the chassis 4 Replace the DC cord bushing Q 5 Connect the KCT 19 to the TX RX unit A 2 as shown in Figure 2 6 Connect the KCT 19 to the external accessory by insert ing the crimp terminal into the square plug both of which are supplied with the KCT 19 15 12 Crimp terminal E23 0613 05 780 1 2 19 Accessory Port Function B C D E Function External hook input Microphone ground Speaker audio mute input Ignition sense input Receiver detector output External microphone input Transmitter sense output Ground Switched B DC 13 2V output Maximum 0 75A External PTT input active low During DTC is low it works as DATA PTT Data modulation input Horn alert call output Squelch detect output
85. de wL HRSI wC HRSI wH HRSI SSG freq 70dBm SSG output Sensitivity value of 12 SINAD SSG MOD 3 0kHz Wide SSG AF VIVM Distortion meter Oscilloscope AG 1 Set test mode Sig1 SSG freq 160 050M Hz SSG output 15dB SINAD level 2 SSG output OFF 8 check 1 Set test mode CH1 5195 SSG freq 160 050M Hz SSG MOD INT 1kHz EXT 151 4Hz SSG system MOD DEV 3 75 2 SSG output 12dB SINAD level 2 5194 CH1 5 96 CH1 5197 Rear panel ANT ACC EXT SP Squelch must be closed once Then adjust for squelch open point Writing values only Squelch must be opened Wide Semi wide Narrow Squelch must be closed Wide Semi wide Narrow Squelch must be opened Wide Semi wide Narrow Squelch must be closed Transmitter Section Item Condition 780 ADJUSTMENT Measurement Test equipment Adjustment Specifications Remarks Unit Terminal Parts Method 1 Frequency 1 Set test mode PTT ON Select FREQ in tuning mode Rear Power meter F counter 160 100MHz 100Hz 1 Maximum power Set test mode L HPOW 256 L HPOW 250 PTT ON E E3 Select in tuning mode 3 High power 1 Set test mode L HPOW PTT ON Selec
86. e Busy time green on TX time red on Surge absorpti B 0512 517 backlight KBLC H time on Protection DC 20V and over time on D518 Current regulation Key backlight Charge DEO Reverse protecti 0206 208 tune 0209 210 Usable tempera range D211 ANT swtich 0212 213 ANT switch TX RX Unit B 2 Control Section Use Function Operation Condition D520 Discharge VCO Unit Use Function Reset pulse Operation Condition Inverter TX ST H time on Oscillator RX Oscillator TX TX RX switch TX ST H time on TX RX switch Q101 off time on LPF amplification LSD Buffer amp Amplification Base voltage Buffer amp AF HSD ASQ Audio processor Compander MIC amplifier ALC Modem AF filter IDC RX VCO D107 TX VCO avo TX VCO D109 Modulation 780 PARTS LIST New Parts indicates safety critical components Scandinavia K USA P Canada Parts without Parts No are not supplied Y PX Far East Hawaii England E Europe Les articles non mentionnes dans le Parts No ne sont pas fournis Y AAFES Europe X Australia M Other Areas Teile ohne Parts No werden nicht geliefert TK 780 TX RX UNIT X57 6142 XX sei Ref No Address hand Parts No Des
87. e maximum number of retry transmission when no acknowledgement is received in the Maximum ACK Wait Time Increase this item to improve data communication reliability TX Busy Wait Time TX Busy Wait Time is the maximum amount of time be fore giving up the data transmission when the channel is busy Also this timer affects if it expires during Random Access period Maximum Wait Time Maximum ACK Wait Time is the maximum amount of time to wait for an acknowledgement from the called radio unit It is used as an interval time of retries It must be set greater than the ACK Delay Time of the called radio unit ACK Delay Time ACK Delay Time is the amount of time from the end of receiving a data to the beginning of sending an acknowledgement It should be adjusted as the repeater s hang up delay time Also it must be set less than the Maxi mum ACK Wait Time of the calling radio unit TXDelay Time RX Capture TX Delay Time is the amount of unmodulated transmis sion to let the called unit stop scanning or exit its battery save mode lt is used only when starting a data communica tion sequence Data TX Modulation Delay Time Data TX Modulation Delay Time is the amount of time from the beginning of transmission to the beginning of a data modulation lt is used every time data is transmitted 7 5 Tone When you select 5 tone model you can set the following options When you select basic level features only 1
88. ed Volume Up Down When this key is pressed the volume level is increased decreased and repeats if held for 200ms or longer Function Table Function DTMF 2 tone DMS 780 None Yes Auto dial Yes Auto dial programming Yes AUX A Yes Yes Note Only when voice scrambler is not selected Call 1 Cal Cal 2 3 Call 4 Call 5 Call 6 Channel down Channel entry Channel name Channel up Emergency call Fixed volume Group down Group up Home channel Horn alert Key lock Monitor Monitor momentary Operator selectable tone Public address Queue Radio password Receive entry Scan Scan delete add Scrambler Selcall entry Selcall list Selcall Status entry Selcall Status list Send GPS Shift Squelch level Squelch momentary Squelch off Status entry Status list Talk around Transfer Volume down Volume up 780 OPERATING FEATURES 2 3 Front Panel Displays and Indicators 1 Sub display Displays the system channel and group numbers Also displays various functions such as TA 2 P Priority indicator The P indicator fil appears when a selected channel is programmed as priority 3 MON Monitor indicator The MON indicator appear
89. el of the power module 400 by the drive block Q203 Q204 The amplified signal passes through the transmission reception selection diode D211 and goes to a low pass filter The low pass filter removes unwanted high frequency harmonic components and the resulting sig nal is goes the antenna terminal Circuit The automatic transmission power control circuit detects part of a power module output with a diode D27 030 and applies a voltage to 021 O21 compares the control voltage PC generated by the D A converter 5 and DC amplifier IC6 with the detection output voltage to control 019 020 generates DB voltage from B voltage and stabilizes transmission output ANT Q203 Q204 1 400 0211 Y RF ANT D27 30 POWER D a B H L 7 5pin 25W High power TX PC SW ON VR1 Fig 8 APC circuit Q17 turns the PC signal on or off using 8T so that the circuit works only during transmission With stability at low power in mind O29 turns off to optimize the detection volt age The APC circuit is configured to protect overcurrent of the power module due to fluctuations of the load at the an tenna end and to stabilize transmission output at voltage and temperature variations Control Circuit The CPU carries out the following tasks 1 Controls the shift register IC7 IC8 IC508 AF MUTE WIDE NARROW T R KEY outputs 2 Adjusts the AF signal leve
90. elect DTMF encode in the Auto dial mode menu Auto dial Redial Dial ID and Store amp Send modes are avail able Press the Auto dial key to enter the Auto dial mode Select the desired number to send It is use the Channel up and Channel down keys or the 2 and 8 keys on the microphone to select Press the X key to transmit the numbers Auto Dial Programming You can store the DTMF code and name or erase it at the transceiver To store a DTMF code Press the Auto dial programming key to enter Auto dial programming mode Select the desired memory number you wish to store Press the X key to select the desired memory number Enter auto dial memory name Press the X key to store the memory name Now en ter the DTMF codes you want to store Press the X key to store the numbers A beep sound confirms that the numbers are stored in the memory Toerase the stored DTMF code Press the Auto dial programming key to enter Auto dial programming mode Press the key to enter Auto dial clear mode Select the memory number you want to erase Press the X key to erase the stored numbers and exit Auto dial clear mode AUX A If this key is pressed AUX icon lights on the LCD and Horn alert port which is inside of the transceiver turns to the high level If pressed again the AUX icon goes off and the Horn alert ports turns to the lower level m AUX B This function can be p
91. er filter meter LPF 15kHz Oscilloscope HPF OFF VIVM 2 s PTT 3 w DTMF PTT ON 3 0kHz Wide 0 1kHz 2 4kHz Semi wide Wide Semi wide Narrow 1 5kHz Narrow 12 FFSK 1 Set test mode deviation Select n FFSK in tuning mode Deviation meter filter LPF 15kHz HPF OFF 2 s FFSK PTT ON 3 w FFSK PTT ON 3 0kHz Wide 0 1kHz 2 4kHz Semi wide Wide Semi wide Narrow 1 5kHz Narrow 13 TONE 1 Set test mode deviation Select TONE in tuning mode Deviation meter filter LPF 15kHz HPF OFF PTT ON 2 5 TONE 3 PTT ON a C AE RM E TK 780 PC BOARD VIEWS PLL VCO X58 4712 70 Component side view SUB UNIT X58 4850 10 E3 J72 0732 02 Component side view KE 9C IN N 1 J72 0785 02 J72 0732 02 8 9090 vm PLL VCO X58 4712 70 Foil side view J72 0732 02 J72 0732 02 Component side Foil side 54 Component side Foil side K L M TX RX UNIT X57 6142 XX A 2 70 E 72 E3 Component side view J 72 0724 22 A 2 Address Ref No Address Ref No Address Ref No 255 250 OLN Ist lt
92. ess D key to move the cursor 1 position right Hold down D key 6 key on a keypad to clear the entered num ber Scan Press the Scan key to toggle scanning the channels on and off When the transceiver is scanning Revert channel display is temporary disabled and the SCN icon and SCAN appear Scan Delete Add Press the Scan del add key to temporarily delete or add each channel from to the scan list When a channel is added to the scan list W appears on LCD When the transceiver exits Scan mode the added or de leted channels are erased from the scan list The original scan list is restored Scrambler Press the Scrambler key to toggle the Scrambler on or off When it is activated underscore appears on LCD If you hold down the Scrambler key for more than 2 sec onds the transceiver enters Scrambler code select mode You can select the Scrambler code 1 to 16 using the Channel Channel or 2 8 keys Voice scrambler unit must be installed Selcall Entry Press Selcall entry key to enter the desired Selcall code you want to call 5 tone This function can be activated only when TX address is set to the channel and Selectable selcall digit has been entered When you enter Selcall entry mode the TX ad dress number appears on the LCD DTMF 2 tone DMS A transceivers unit ID is defined by a combination of 3 digit fleet and 4 digit ID numbers T
93. frame 5 tone format can be programmed When you select full level features up to 3 frame 5 tone format can be programmed Enabling Setting level on each menu you can also use Encode Decode format Using Encode Decode for mat you can further program the transceiver to run the script 5 tone Standard The selected 5 tone standard is used for 5 tone encoding and decoding Range ZVEI CCIR EEA PZVEI DZVEI PCCIR PDZVEI ZVEI 2 EIA Natel AP 369 Kenwood 13 780 14 OPERATING FEATURES Monitor Function You can select either OT DOT or 5 tone decoding to be canceled when Monitor or Monitor momentary key is pressed When monitor function is activated MON icon appears When the transceiver is set up in cancels the decoding in decode The squelch is controlled by the signal carrier only When the transceiver is set up in 5 tone cancels the decoding in 5 tone decode The squelch is controlled by DOT decode only If code is programmed in QT DOT decode in coming signal must match the OT DOT code to open the squelch E Digit Entry Method Receive Selcall or Status digit appears when you enter their entry mode pressing Receive entry Selcall entry or Status entry key or Keypad operation is programmed to Selcall entry or Status entry and press 0 to 9 key You can select the operation of the function Or the digit number when entering
94. ft switching TX L Analog switch DI switch Dead mute H RX L TX GND A D converter PC TV FC AFO BEEP TO MO control IC7 data output DC amp PC NC External squelch Programmable active H L Shift register HNC H L TOF CODE3 CODE4 PA control Option board data 2 ON L OFF Shift register AM LOK STR DM OPT CODE1 CODE2 SO control 5V AVR External 5C Option board data 1 H ON L OFF AF power amp Option board control L OFF Auxiliary B Programmable active H L FM IF DET Quadrature detector 2nd mixer OSC IF amplifier RSSI 5V AVR 5C Output Terminal function 5V TX RX unit A 2 IC7 Function Strobe 9V AVR 8V AVR 9C 8C Flip flop Power on off control DC amp TV Mixer DBM Data PLL Reference 16 8MHz PLL lock LD H Clock Power module RF power 25VV Horn alert H ON L OFF Auxiliary A H ON L OFF Short protection TIMOFF RF power switching H High L Low Timed power off H Power off DC switch R17 connection and PTT H time DI off Ripple filter 8CL CODE3 Option board data 1 H ON L OFF GND Ripple filter HOR switch 9CL IGN NC HOR SW control IGN NC HOR SW control
95. g etc Mainly used by the person maintaining the user equipment 7 1 Enter to the Self Programming Mode Delete R614 SELF Figure 2 in the TX RX unit B 2 and turn the power switch on while pressing the CALL key When enter the self programming mode SELF PROG is displayed Note This mode self programming mode cannot be set when it has been disabled with the KPG 60D TX RX unit B 2 Control section Foil side mi m JL Cc 511 TTTTTTITTTTTTTTTITTTTTT 1000 0 00000000 pa 0000 000000 00000 Fig 2 17 780 18 REALIGNMENT 7 2 Channel Setting Mode Each channel be in its action mode by using Pressing while SELF PROG is displayed will change to channel setting mode Press D to select a setup item then press Channel up down to change the selection By pressing the displayed information is stored in memory and the next item appears By pressing D the displayed information is not stored in memory and the next item appears Press to return to the original display SELF PROG The setup items fro channel setting mode are listed be low Setup function Display Remarks 3 character
96. grammed Emergency group channel and transmits for programmed Duration of transmission time The transceiver disables microphone mute while trans mitting After finishing transmission the transceiver receiv ers for programmed Duration of receiving The trans ceiver mutes the speaker while receiving Following the above sequence the transceiver continues to transmit and receive You can select whether or not the emergency ID is trans mitted in the emergency mode Fixed Volume This function is used for changing the volume level it is power on tone control tone warning tone alert tone AF volume type If these tone is set up in Fixed the tone level can be changed when Fixed volume key is pressed When Fixed volume key 15 pressed tone level changes in turn to low tone volume low high tone volume high and off 780 OPERATING FEATURES Group Up Down When this key is pressed each time the group number to be selected is increased decreased and repeats if held for one second or longer Home Channel Press this key once the channel switches to the preprogrammed home channel Horn Alert If you are called from the base station using 5 tone 2 tone DTMF DMS while you are away from your transceiver you will be alerted by the vehicle horn or some other type of external alert To turn the horn alert function on press this key A confirmation tone sounds If this key pressed again t
97. he horn alert function is turned off Key Lock Key lock prevents accidental operation of the transceiver When key lock is activated all keys other that PTT Emer gency Monitor Monitor momentary Shift Squelch Squelch momentary and Volume up down are locked LOCKED appears momentarily when the Key lock key is pressed Monitor DTMF 2 tone DMS When this key pressed once MON icon lights and squelch unmutes if a carrier is present regardless of the specified signalling including option signalling If press again MON icon goes off and squelch mutes b tone Depend on monitor function and monitor key action in the system parameters You can select either OT DOT or 5 tone decoding to be canceled when Monitor key is pressed When monitor function is activated MON icon appears Monitor Momentary DTMF 2 tone DMS While pressing this key appears and the squelch unmutes if a carrier is present regardless of the specified signalling including option signalling If released MON disappears and the squelch mutes 5 tone Depend on monitor function in the system parameters You can select either OT DOT or 5 tone decoding to be canceled while pressing Monitor key When monitor function is activated MON icon ap pears Operator Selectable Tone When this key is pressed the OST appears and en code decode is switched to the OST tone pair If pressed again
98. increments from 30 seconds to five minutes If the transmitter is keyed continuously for longer than the pro grammed time the transmitter is disabled and a warning tone sounds while the PTT button is held down The alert tone stops when the PTT button is released Sub LCD display You can use 3 digit the display to display the channel number or group number It is useful when the main 12 digit display indicates group or channel name or other func tions Selective call alert LED You can select whether or not the LED on the transceiver flashes in an orange color when selective call was occurred B PTT ID PTT ID provides a DTMF or FFSK DMS Fleet ID ANI to be sent with every time PTT beginning of transmission end of transmission or both You can program PTT ID on or off for each channel The contents of ID are programmed for each transceiver The timing that the transceiver sends ID is program mable BOT DTMF ID BOT FFSK ID is sent on beginning of transmission EOT DTMF ID EOT FFSK ID is sent on end of transmis sion Both DTMF ID BOT FFSK ID is sent on beginning of transmission and DTMF ID EOT FFSK ID is sent on end of transmission Radio password When the password is set in the transceiver user can not use the transceiver unless enter the correct password This code can be up to digits from 0 to 9 and input with the key and CALL key Off hook decode If the Off hook decode function h
99. ing 1 1 5 tone Model In this model you can program Basic or Full level fea tures When you select Basic level only 1 frame 5 tone can be programmed and various functions are limited When you select Special setting in the Full level you can use encode decode format Using encode decode for mat you can further program the transceiver to run the script 1 2 DTMF 2 tone DMS Model You can use option signalling which is DTMF or 2 tone only for decode or DMS Digital Message System FFSK signalling for every channel 2 Transceiver Controls and Indicators Fig 1 2 1 Front Panel Controls All the keys on the front panel are momentary type push buttons The functions of these keys are explained below POWER key Transceiver POWER key When the power is switched off all the parameters such as the group and channel are stored in memory When the power is switched on again the transceiver returns to the previous conditions CHANNEL UP DOWN key CALL key Programmable key Programmable A B C and D key Programmable VOLUME UP DOWN key Programmable BUSY TX LED The BUSY indicator Green LED shows that the channel is in use The TX indicator Red LED shows that you are transmitting 780 OPERATING FEATURES 2 2 Programmable Keys The FPU KPG 60D enables programmable keys to se lect the following functions Auto Dial To transmit the stored DTMF code automatically When you s
100. it is turned off Key press tone B Sounds when a key is pressed For toggle keys sounds when the toggle function is turned off key press tone A sounds when it is turned on Key press tone C Sounds when a key is pressed Also sounds when stor ing data adding a DTMF code to memory and when chang ing test mode settings Key input error tone Sounds when a key is pressed but that key cannot be used Roll over tone Sounds at the smallest group channel Transpond tone Sounds when an individual call with the correct DTMF 2 tone option signalling is received For group calls only the group tone will sound not the transpond tone Pre alert tone Sounds prior to the TOT TX inhibit activation If TOT pre alert is set the tone sounds at the amount of time pro grammed before the TOT expires TOT time TOT pre alert time Pre alert tone sounding time 15 780 16 1 Modes Mode ming mode REALIGNMENT Panel tuning mode Data program ming mode Function PC tuning mode User mode For normal use Panel test mode Used by the dealer to check the funda ment characteristics Panel tuning mode Used by the dealer to tune the radio PC mode Used for communication between the radio and PC IBM compatible Data programming mode Used to read and write frequency data and other features to and from the radio PC test
101. itable dummy load i e power meter The speaker output connector must be terminated with a 40 dummy load and connected to AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning OT 67 0Hz QT 151 4Hz QT 210 7Hz QT 250 3Hz None Single tone 1200Hz Transceiver Tuning To place transceiver in tuning mode Channel appears on LCD Set channel according to tun ing requirements LCD display Test mode n ui jl r il t W SW N Channel Signalling No 45 780 ADJUSTMENT Press now in tuning button to write tuning data through tuning modes Channel Up Down to adjust tuning requirements 1 to 256 appears on LCD Use D button to select the adjustment item through tun ing modes Use B button to adjust 3 or 5 point tuning and use CALL button to switch between wide semi wide nar row LCD display Tuning mode F Adjustment item Adjustment 1 256 Panel Tuning Mode MHz Test channel RX frequency TX frequency 146 10000 153 10000 160 10000 167 10000 173 90000 L 146 05000 L2 153 05000 C 160 05000 H2 167 05000 H 173 95000 Tuning flow 5 point _ B tuning 5 point tuning 3 point tuning 3 point tuning 3 point tuning 3 point tuning FREQ xxx D HPOW xxx LPOW xxx
102. l of the audio processor IC504 and turns the filter select compounder on or off Controls the DTMF decoder IC507 Controls the LCD assembly display data Controls the PLL IC300 Controls the D A converter IC5 and adjusts the volume modulation and transmission power LCD ASSY 3 4 5 6 TX RX UNIT 2 F 508 Shift register 1C8 Shift register 1C7 Shift register 5 D A converter Fig 9 Control circuit B Memory Circuit The transceiver has a 2M bit 256k x 8 flash ROM IC510 and an 16k bit EEPROM 1C512 The flash ROM contains firmware programs data and user data which is programmed with the FPU The EEPROM contains adjust ment data The CPU IC511 controls the flash ROM through an external address bus and an external data bus The CPU controls the EEPROM through two serial data lines ADDRESS BUS 1 512 SDA EEPROM BUS Fig 10 Memory circuit 780 CIRCUIT DESCRIPTION Display Circuit The CPU IC511 controls the shift register IC508 and display LEDs When the LG line goes high when the trans ceiver is busy 0508 turns on and the green LED 0511 lights In transmit mode the LR line goes high Q509 turns on and the red light lights Backlighting LEDs for the key operation unit 0512 0517 and LCD are provided When the KBLC line goes 0512 turns on then Q513 tur
103. location Select a convenient location for your control station radio which is as close as practical to the antenna cable entry point Secondly use your system s power supply which supplies the voltage and current required for your system Make sure sufficient air can flow around the radio and power supply to allow adequate cooling SERVICE This radio is designed for easy servicing Refer to the schematic diagrams printed circuit board views and align ment procedures contained in this manual Note When you modify your radio as described in system set up take the following precaution The rating of pin 7 SB of the accessory connector cable KCT 19 on the rear of the radio is 13 2V 0 75 Inserta 1A fuse if you use the SB pin for external equipment Accessory connector cable KCT 19 If you do not intend to use the 3 5 mm jack for the exter nal speaker fit the supplied speaker jack cap B09 0235 05 to stop dust and sand getting in Speaker jack B09 0235 05 1 Operation Features The TK 780 is a VHF FM radio designed in both 5 tone model and DTMF 2 tone DMS model The programmable features are summarized This transceiver can handle up to 250 groups with 250 channels in each group Model 5 tone r Basic DTMF 2 tone DMS I Full Full Special sett
104. ment 1 Discriminator 1 Set test mode SSG Rear L6 AF output voltage CH CH1 Sig1 panel maximum SSG output 53dBm AF VIVM ACC AF 1 4V 4Q Oscilloscope EXT SP Specificati R k Unit Terminal Parts Method pecifications Remarks 2 Sensitivity 1 Set test mode SSG ANT Adjust for Select SENS in tuning mode maximum SINAD L SENS AF VIVM ACC SSG freq 146 0500 Hz Distortion EXT SP SSG output 118dBm 0 31uV meter SSG MOD 1 5kHz Oscilloscope AF output 1V 4Q AG 2 C SENS Adjust for 550 freq 160 050 2 maximum SINAD 3 H SENS Adjust for SSG freq 173 950MHz maximum SINAD 1 Set test mode Squelch must be Select nL SOL in tuning mode closed once SSG freq 146 0508 Hz Then adjust for SSG output Sensitivity squelch open point value of 12 SINAD SSG MOD 1 5kHz Narrow 2 nC SOL SSG freq 160 050MHz 3 nH SOL SSG freq 173 950MHz 4 sL SOL sC SOL sH SOL SSG freq Same as narrow adjustment SSG output Sensitivity value of 12 SINAD SSG MOD 2 4kHz Semi wide 5 wL SOL wC SQL wH SOL SSG freq Same as narrow adjustment SSG output Sensitivity value of 12 SINAD SSG MOD 3 0kHz Wide 4 RSSI Low 1 Set test mode Writing values only Select nL LRSI in tuning mode SSG freq 146 0508 Hz SSG output Sensitivity value of 12 SINAD SSG MOD 1 5kHz Narrow 2 nC LRSI 550 freq 160 05
105. minals Schematic diagram PC board view Function Unit Switched B 13 2V 0 75A TX RX A 2 5C TX RX 2 Earth TX RX A 2 Detect signal output Output TX RX A 2 level 250mVrms standard modulation RX audio input TX RX B 2 RX audio output TX RX B 2 TX audio input B 2 TX audio output TX RX 2 TX logic signal output TX RX A 2 Active type can be selectable in the KPG 60D Option board select Please TX RX A 2 select option board type in the KPG 60D Option code 1 for voice TX RX A 2 scrambler code 1 Option code 1 for voice TX RX A 2 scrambler code 2 Serial data output 2 Serial data input 2 Receive signal strength indication PTT MIC PTT Foot switch input EEOC RSSI unit A 2 Foil side view SLO XA co unit B 2 Control section Foil side view RXAI R529 Oen wd 21 780 22 INSTALLATION 4 Ignition Sense Cable KCT 18 Option The KCT 18 is an optional cable for enabling the ignition function The ignition function lets you turn the power to the transceiver on and off with the car ignition key If you use the Horn Alert function or the Manual Relay function you can turn the function off while driving with the ignition key 2 1 Connecting the KCT 18 to the Transceiver
106. mode Used to check the radio using the PC This feature is included in the FPU See panel test PC tuning mode Used to tune the radio using the PC This feature is included in the FPU See panel tuning Firmware program ming mode Used when changing the main program of the flash memory Clone mode Used to transfer programming data from one radio to another Self programming mode Frequency signalling and features write to the radio 2 How to Enter Each Mode Mode Operation User mode Power ON Panel test mode B Power ON PC mode Received commands from PC Panel tuning mode Panel test mode A Firmware programming mode A Power ON Clone mode Power Self programming mode CALL Power ON 3 Panel Test Mode Setting method refer to ADJUSTMENT 4 Panel Tuning Mode Setting method refer to ADJUSTMENT 5 PC Mode 5 1 Preface The TK 780 transceiver is programmed by using a per sonal computer programming interface KPG 46 and pro gramming software KPG 60D The programming software can be used with an IBM PC or compatible Figure 1 shows the setup of an IBM PC for programming 5 2 Connection Procedure 1 Connect the TK 780 to the personal computer with the interface cable 2 When the Power switch on user mode can be entered immediately When PC sends command the radio enter PC mode
107. mp qM ST 20 p is 0 5 FILTER R115 okej 113 5 Ret x D30 519 25586 ar g lar TP TEMPERATURE oje ola glo HSM88AS z i 552 27 10 PUE COMPENSATING ars ars ATY 270 270 aps n 959 eT eT ST HSM88AS BEI MEN a l 3 x m ee SS a 0 mm Sio B ME 942 XA2 X58 850 10CSUB 5 1 8T SW T 8 ale 13 15V 9 L301 C312 1 5 5 N SW Q11 12 DI Sto 2 2SA1362 Y 2581132 0 4 39 53 BUFFER AMP 219578 819 2 4 10 P eal i Jl oka i ru ala z Aenea 1 m lt 5 3 4 DSA 9 F 218 Sir 2 0 19V oj RE 224 m Th 78 m 3 31V 3 Slo ORT 1 5 2 4 fale G 57 i PROTECTION 0 Md NS B uss 1101 R10 P e i 25 1 R1 al DES a o o ol ad d 3 0401 o T 7 32V 1 E 1 H o 2 pm 104 47 oia 5 el 8112 W 4 R139 DTCI14EE 1215 a
108. ns on and the key illumination LED lights A volt age is applied to the LEDA line to turn on the LCD backlight gt IC508 0511 D512 517 Shift register GRN RED Fig 11 Display circuit Key Matrix Circuit The TK 780 front panel has ten keys Each of them is connected to a cross point of a matrix of the KEY1 to KEY7 ports of the microprocessor The KEY5 to KEY7 ports are always high while the KEY1 to KEY4 ports are always low The microprocessor monitors the status of the KEY1 to KEY7 ports the state of one of the ports changes the microprocessor assumes that the key at the matrix point corresponding to that port has been pressed Unused points KEY1 to KEY7 are also used for foot switch FSW input Fig 12 Key matrix circuit Encode The OT DOT signals are output from LSDO of the CPU IC511 and go to the D A converter IC5 of the TX RX unit A 2 The DTMF and single 5 tone signals are output from HSDO of the CPU and goes to the audio processor IC504 An MSK signal is output from the audio processor according to the data AFDAT from the CPU The signal is summed with a MIC MSK signal by the audio processor IC504 and the resulting signal passes through an analog switch IC506 and goes to the TX RX unit A 2 MO MO is summed with the external pin DI line by the sum ming amplifier IC3 and the resulting signal goes to the D A converter IC5 The D A converter IC5 adjusts
109. o enter Selcall number use the keypad keypad model or use the Channel up Channel down keys to select a number Then press C key to enter the selected number The selected digit will shift left to enter the next digit Press D key to move the cursor 1 position right Hold down D key 6 key on a keypad to clear the entered num ber Selcall List Press Selcall list key to enter Selcall list mode b tone Select the check box of Selectable selcall digit The number of digit you selected in Selcall list will be dis played on LCD If Selcall list has not been programmed same digits of Selcall list code that you checked as Select able selcall digits will appear on LCD DTMF 2 tone DMS The ID list code of DMS will appear on LCD To select the Selcall list use Channel up Channel down key or 2 8 key on the microphone keypad Selcall Status Entry Select the selcall number you wish to call Press Selcall 4 Status entry key to enter Selcall entry mode It works as Selcall entry mode mode If you press CALL or X key again it works as Status entry mode Selcall Status List Select the selcall number you wish to call Press Selcall 4 Status list key to enter Selcall list select mode It works as Status list mode If you press Selcall Status list key again it works as Status list select mode Send GPS DTMF 2 tone DMS You can send the GPS location data manually
110. onal scrambler function is en abled When the key is pressed again the off and the function is disabled 2 Assign the optional scrambler function to each channel by using the programming software KPG 60D The op tional scrambler function can be used without pressing the Scrambler key indicator goes 5 1 Code Setting The code can be set by two methods 1 Hold down the Scrambler key to enter the code setting mode Codes 1 to 16 will be displayed Set a code by turning the Up Down key When the Scrambler key is pressed again the code setting mode terminates 2 Set a code for each channel by using the programming software KPG 60D 5 2 Voice Scrambler Board Connection Modification 1 Remove the upper half of the case of the TK 780 2 Remove R529 and R571 on the TX RX unit X57 614 B 2 780 INSTALLATION Scrambler board TK 780 Code 4 4 Code 3 Code 2 2 Code 1 C1 TX RX A 2 PCB TX RX A 2 PCB TX RX A 2 PCB TX RX A 2 PCB PCB silk name R571 B 2 Disable TX RX B 2 PCB TX RX A 2 PCB TX RX B 2 PCB TX RX B 2 PCB TX RX 2 R529 TX RX B 2 PCB Disable TX RX B 2 PCB GND GND TX RX unit A 2 Component side view TXO r TX RX unit B 2 GND Control section Foil side view RXAI an MPTT 90 6 P
111. red num ber and press C key to enter The cursor moves to next position Status List 5 tone Press Status list key to enter Status list mode Select the check box of 5 tone System parameters Selectable status digit The number of digit you selected in 5 tone Status list will be displayed on LCD If Status list has not been programmed same digits of status list code that you checked as Selectable status digits will appear on LCD To select the status list use Channel up Channel down key or 2 8 key on the microphone keypad Talk Around When Talk around function is activated TA appears and the transceiver transmits on the receive frequency us ing receiver s code The operator can call the other party directly without re peater Transfer 5 tone When you select 5 tone for Signalling type for de code this function is used for transmitting 5 tone code Press the Transfer key to activate the transfer function TRANSFER appears on the LCD When the target 5 tone code is received you can select to transfer the code to another transceiver When a mobile transceiver receivers the target 5 tone code a mobile trans ceiver transfers the received 5 tone code to a portable When Special setting is selected enabled and using decode format this parameter is not valid None When you press this key the transceiver emits the Key input error tone no function is perform
112. rogram the 5 tone code you want to receive for each channel At the same time you can stand by for de coding a single tone If the 5 code set in your transceiver matches a re ceived code Monitor is activated and a beep sounds You can display the received 5 tone code on the LCD screen and transmit an acknowledgment to the base station Further more you can activate the Horn alert Transfer Stun and Kill features Selcall Status List You can program selcall or status message when you select the party from the list to make a 5 tone selective call Or you want to display selcall status code or message when you receive the call Maximum 8 digit can be pro grammed for the code and 100 different selcalls or status are available for selcall status list You can assign 16 alphanumeric characters to each mes sage Programmable Alert Tone You can program the alert type from type 1 to type 8 when the expected 5 tone is received You can program the number of times to repeat outputting and frequency and duration for the alert tone When you select Special setting you can further con figure the beep tone type from No 1 to No 47 using the encode decode format Encode Decode Format You can use encode decode format script function when you select Feature level Full and Special setting Enabled In order to write the encode decode format script you need the technical knowledge of 5 tone signalling function
113. rogrammed when the voice scram bler board is not installed If this key is pressed an underscore appears at the extreme right of the LCD and OPT port which is inside of the transceiver turns to the active level low If pressed again the underscore disappears and the OPT ports turns to the deactive level high Channel Name Press this key to switch between the Channel name and Grp Ch for the display If no channel name is grammed the transceiver automatically displays the group channel Channel Up Down When this key is pressed each time the channel number to be selected is increased decreased and repeats if held for one second or longer Call 1 to 6 5 tone Press the CALL key to transmit the 5 tone code that is programmed to Call in the system parameters Channel Entry You can directly recall the channel using the numeric key pad without using the Channel Channel down To access the channel directly enter 1 to 3 digit num bers depending on the number of the programmed chan nels For example if the radio has 199 programmed channels the maximum channel number is a 3 digit number and you would like to recall channel 5 you must enter 0 0 15 If the radio has 99 channels 2 digit number you must enter 0 5 to access channel 5 Emergency Call Pressing this key causes the transceiver to enter the emergency mode The transceiver jumps to the pro
114. s Of course you can write the script to perform all the func tions that you can do with Feature level Basic and Full and Special setting Disabled Menu driven method In addition you can write the original script to control various functions and signalling timing Refer to each func tion of encode decode format code for details Sample scripts are also available in the KPG 60D You can create 32 different types of encode decode for mats You can assign a name up to 12 characters for each encode decode format 8 Audible User Feedback Tones The transceiver outputs various combinations of tones to notify the user of the transceiver operating state The main tones are listed below Power on tone This tone is output when the transceiver is turned on The high tone is output for 500ms Alert tone This tone is output when the transceiver is TX inhibition for TOT battery warning PLL unlocked It is output until the PTT button is released Group call tone Sounds when a group call with the correct DTMF 2 tone option signalling is received DMS signalling alert tone Sounds when an individual call with the correct DMS sig nalling is received Individual call tone Sounds when an individual call with the correct DTMF 2 tone option signalling is received Key press tone A Sounds when a key is pressed For toggle keys sounds when toggle function is turned on key press tone B sounds when
115. s filter and a transmission reception selection diode switch D211 and goes to the front end of the receiver The front end filter is a variable BPF consisting of three coils and three varicap diodes D206 D207 D208 to eliminate un wanted out of band signal components The low noise am plifier LNA 0202 uses a bipolar transistor to achieve wide band and low distortion amplification The signal passes through the BPF and is down con verted with the first local signal by 202 to produce the first IF signal of 44 85 MHz The first local signal passes through ANT 0202 L202 204 202 LPF D211 212 AMP BPF 151 local OSC LPF attenuator eliminate unwanted harmonics components and Implement the optimum input level to the mixer then enters 202 DBM is used as a mixer to achieve a high potential The signal output from the mixer passes through two MCFs XF1 The signal is amplified by an intermediate fre quency amplifier and input to the FM IF IC IC11 The first intermediate frequency signal is mixed with the second local signal of 44 395MHz to produce the second IF signal of 455kHz The unwanted near by signal components are then elimi nated by a wide ceramic filter CF1 or a narrow ceramic fil ter CF2 and the resulting signal goes back to the FM IF IC The signal is quadrature detected in the IC to produce an audio signal which is amplified by a DET amplifier IC
116. s when the button pro grammed as MONITOR is pressed 9 SVC Service indictor This icon is not used this transceiver 5 SCN Scan indicator The SCN indicator appears when using scan mode 6 AUX Auxiliary indicator Appears when the auxiliary function is activated ON by pressing the AUX A key BUSY TX LED VOLUME DOWN VOLUME UP DC SOURCE 2 Handset indicator This icon is not used this transceiver MAIL indicator Flashes when a status message 5 tone or DMS is re ceived Lights when a status message is stored in the stack memory 9 Alphanumeric display The twelve character dot matrix alphanumeric display shows the system group numbers You can program sys tem group names with up to ten characters in place of these numbers The left display is used as an add indicator Y and the right is used for the selective call or scrambler _ function The add indicator shows the channels unlocked out of the scanning sequence Selective call and scrambler are optional functions that can be programmed Dispalys received messages when using 5 tone or DMS A B C D key These keys are programmable function PF keys 000 00 w sc so AX 2 H CHANNEL UP CHANNEL DOWN 2 7 MODULAR MIC JACK 3 Scan Operating Scan types Single group scan You can scan
117. t in tuning mode 2 L2 HPOW ON 3 PTT ON 4 H2 HPOW PTT ON 5 H HPOW PTT ON 4 Low power 1 Set test mode LLPOW PTT ON Select in tuning mode Power meter L2 LPOW PTT ON C LPOW PTT ON H2 LPOW PTT ON H LPOW PTT ON 5 Power check Set test mode CH CH1 Sig1 CH2 Sig1 CH3 Sig1 PIT ON Power meter 25W 1W or less 5W 0 2W 5A or less E3 Ammeter 6 Modulation balance 1 Set test mode MIC input OFF Select BAL in tuning mode BAL Deviation meter filter LPF 15kHz HPF OFF De emphasis OFF 2 nC BAL PTT ON 3 nH BAL PTT ON 4 s BAL PTT ON w BAL PTT ON 5 Power meter Deviation meter Oscilloscope Make the de modulation waveform near Wide Semi wide Narrow ILL VIVM 780 Condition ADJUSTMENT Measurement Adjustment Test equipment Unit Terminal Parts Method Specifications Remarks 7 Maximum deviation 1 Set test mode Connect AG to the MIC terminal Select MAX in tuning mode nL MAX AG 1kHz 40mV Deviation meter filter LPF 15kHz HPF OFF De emphasis OFF PIT ON nC MAX PTT ON nH MAX PTT ON s MAX PTT ON w MAX PT
118. t D22 i 2 a E DAN23SE s ies R138 IN OUT 3Tc TA31136FN ols 4 el m 10 B 2 ec1ooeRi14 AF SW R 0 37V SE 9 5 Clo 53 0 29V S 74 4 G a l 215 218 SANDER T 10u10 3 9k UE GN2011 Q NF 0 olo ojx NA DTC144EE SUT L oa76 9 1 E oga Er gv TC144EE L72 0376 05 412 gt aso KEY H WAN sw 220 Sk i da Six 22 23 111 Quo LA 51 n Rage 2208 RSSI 016 p 51 d SW 7 016 eris C59 H E ES S RIPPLE FILTER DTC144EE DET IC 1000p Ok 5 11V R220 d gt 1C201 100k 138 S LMC7101BIM5 DC 1 D EE LOW 2 927 4 93V P GND em 12 T9V s PSW ON 0 O2V 915 15 lezle D20 ES 4 4 ola Seu 472 DIS REVERSE CURRENT PROTECTION go 2 N rh ue T D32 SURGE ABSORPTION MINISMDCO75 02 8176 OVER CURRENT 9 DIa taral oe 55 e i zU i 2 SHIFT of 1 PROTECTION
119. t level is adjusted by the D A converter The signal output from the D A converter is added with the BEEP signal BPO and the resulting signal is input to the audio power amplifier IC10 The AF signal from IC10 switches between the inter nal speaker and speaker jack J1 output TX RX UNIT B 2 Control section 1 504 1 502 5 IC10 SP AUDIO SUM D A DEO 9 PROCE 1 1 1 4 AF signal system Squelch Circuit The detection output from the FM IF IC IC11 is ampli fied by IC2 and the signal DEO is sent to the TX RX unit B 2 The signal passes through a high pass filter and a noise amplifier Q503 in the TX RX unit B 2 to detect noise A voltage is applied to the CPU IC511 The CPU controls squelch according to the voltage ASQ level The signal from the RSSI pin of IC11 is monitored The electric field strength of the receive signal can be known before the 5 voltage is input to the CPU and the scan stop speed is im proved IXRX UNIT B 2 Control section 503 0503 NOISE 0509 IC511 Fig 5 Squelch circuit MIC 1 711 75501 1 504 IDC LPF TC35453F Q103 VCO 2SK508NV K53 PLL SA7025DK IC3 SUM AMP TA75W558FU VCXO 16 8MHz IC511 CPU 30620M8A 2K9GP Q106 RF AMP 25 4215 BUFFER 2SC4215
120. the LED on the TK 780 lights and the checksum is displayed 8 If you want to continue programming other TK 780 peat steps 4 to 7 Notes his mode cannot be entered if the Firmware program ming mode is set to Disable in the Programming soft ware KPG 60D When programming the firmware it is recommend to copy the data from the floppy disk to your hard disk be fore update the radio firmware Directly copying from the floppy disk to the radio may not work because the access speed is too slow 6 4 Function 1 If you press the switch while PROG 57600 is dis played the version is displayed If you press the switch again while the version is displayed PROG 57600 is redisplayed 2 If you press the D switch while PROG 57600 is dis played the display changes to PROG 19200 to indicate that the write speed is low speed 19200 bps If you press the D switch again while PROG 19200 is dis played the display changes to PROG 38400 and the write speed becomes the middle speed 38400 bps If you press the D switch again while PROG 38400 is displayed the display returns to PROG 57600 3 If you press the D switch while the version is displayed the checksum is displayed If you press the D switch again while the checksum is displayed the version is redisplayed Note Normally write in the high speed mode 7 Self Programming Mode Write mode for frequency data and signallin
121. their entry mode appears When the transceiver is set up in Overwrite new their digit number will overwrite the previous their digit when en tering their entry mode When the transceiver is set up in Replace new their digit number will overwrite the their digit that is pro grammed in RX address or TX address menu when entering their entry mode Busy Channel Lockout You can inhibit the transmission while the channel is busy You can program the following different conditions When the transceiver is set up in Lockout 1 Do not transmit when the transceiver is receiving the carrier Transmit when the transceiver is not receiving the carrier When the transceiver is set up in Lockout 2 Do not transmit when the transceiver is receiving the carrier and OT DOT code does not match Transmit when the trans is not receiving the carrier or receiving the OT DOT code matches Selectable Receive Digit Select the check box to change receive code maximum 8 digits manually when receiving decode code You cannot select selectable receive digit store selcall digit and store status digit at the same time For example the transceiver receives 5 tone code 59401 when you have 4th and 5th digit checked in select able receive digit menu In this case 01 is stored as re ceive code Press Receive entry key to enter receive entry mode When you enter receive entry mode you can change the receive code 01 You can re
122. trol unit 0202 LNA Buffer amp HSD 0203 first MIC 204 drive last MIC mute MM H and MM1 time mute 0300 Buffer amp PLL AF mute KEY H time mute on 0301 302 Active filter Noise amp 401 Short protection 1 400 out short time Inverter H L switch 0402 switch Wide time off LED switch LG H time on Busy time green on W N switch Protecti HOR protection Wide time on LED switch Clock switch shift FSW swtich LR H time on TX time red on BSFT time clock shift on FSW L time foot switch on Protection Key backlight swi KBLC H time on OR gate AF mute Key backlight swi KBLC H time key backlight Protection Key backlight swi HT switch Surge absorpti BLC Reverse protection Protection Over current protection PSB Reverse protection GN Surge absorpti C Protection 5V IGN Surge absorpti PTT TXD W N CF change Surge absorpti HOOK RXD Over current protection OR gate MIC mute M MM1 Limiter IC Reverse protecti Limiter ASQ Power detecti Protecti Power detecti Reverse protecti 0511 Reverse current protection BUSY TX LED Green Red C575 charg
123. uest function is initiated by serial control on the base station Optional Short Messase Optional A maximum of 48 characters can be sent External equip ment is required Received Short Messages will be dis played in the same manner as a Status Message A maxi mum of 15 received messages can be stored in the stack memory In the Stack Mode 3 digit LCD indicates the re ceived Short Message as Q1 Q15 Long Message A maximum of 4096 characters can be sent External equipment is required Received Long Message will not be displayed or stacked in the radio memory but is output through the COM Data port Emergency Function Emergency status 99 will be sent at the beginning of each emergency transmission Emergency Status response Either Horn or Alert can be selected for the called radio unit s response to reception of status 99 which is used as an emergency status Other Functions Manual Dial Fleet ID and Status numbers can be entered from DTMF keypad DTMF microphopne is required Data TX with OT DOT Whether programmed QT DOT is modulated or not with a data transmission except for Selcall A radio unit can re ceive a data message regardless of QT DOT if the receiving unit is not scanning DMS Baud Rate FFSK data baud rate setting The same rate must be set as a communication partner 1200bps Data communication is made in 1200bps The communi cation area is much wider than 2400
124. uit has an over voltage protection circuit If a DC voltage of 20V or higher is applied to the power cable D34 turns on and a voltage is applied to the base of Q31 This voltage turns Q31 on and turns Q28 and SBSW off This circuit has a TIMED POWER OFF TOF function which can be programmed by software It is controlled through pin 6 of IC7 When the TOF line goes high 022 turns on and then O25 turns on Pin 6 of 15 goes high then pin 1 goes high to turn 027 off PSW TOF 1C7 6pin Fig 17 Power supply circuit SEMICONDUCTOR 780 Microprocessor 30620M8A 2K9GP TX RX Unit B 2 Control Section IC511 Terminal function Name Function Name Function LSDOUT Low speed data output EP PLL IC data strobe output HSDOUT High speed data output CSO ash memory chip enable HSDIN High speed data input A19 ot used DTMSTD DTMF decode IC data detect input 18 9 ash memory address SELF Self programming mode input VCC BYTE 5V A8 ash memory address CNVSS GND VSS ND 00 NI gt Shift register output enable 7 0 N F 5V F G F ash memory address bus LCDCS LCD driver chip select output KEY1 KEY4 Key matrix data input output 1 4 RESET Microcomputer reset input MINDAT Common data output X
125. valid ADD channels in the displayed group that can be selected with the group up down key Multiple group scan You can scan all valid ADD channels in the all valid ADD group SCAN start condition One or more non priority channels must be added to all channels that can be scanned The transceiver must be in normal receive mode PTT off CALL When you activate the key programmed to the scan func tion the scan starts The scan icon SCN lights and SCAN or revert channel programmable is indicated on alphanumeric display Scan stop condition The scan stops temporarily if the following conditions are satisfied 1 A carrier is detected then signalling matches on chan nels for which receive the signalling is set by the pro gramming software 2 A carrier is detected on the channels for which receiving signalling is not set by the programming software or when the monitor signalling cancel function is activated 780 OPERATING FEATURES Scan channel types 1 Priority channel is the most important channel for the scan and always detects a signal during scan and when the scan stops temporarily 2 Non priority channels detects a signal during scan For the channels that can be selected with the group or chan nel up down key when the scan does not occur adds an indicator lights Priority channel setting A priority channel can be set as follows with the program ming software KPG

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