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Kenwood TK-940 Car Satellite Radio System User Manual

1. 3 L r L r L r 3 lt T Z C T T T K C K 71 T 4 n n 2 n 7 n T I T J C C C CT C c 8 B B B B 8 B B x X x m m m z m m m m Z I i T T 7 T T r n r c r n N N N c l h f l d c f T 3 6 2 CI I tl C e a m c t n w G T T T T P L C P x x x r 1 h 7 C x x 4 1 0 1 X C C C U S a K m amp W K Z h l O C T V C 0 K1 L n W d I C Z Z I W z z LL C C C C G I I I z z C lt r I I I I lt lt lt u d m S L d l amp I C d L a C P P P P P P W C C C P P P P 4 C 3 C 6 r m 0 i lt N e v Parts PARTS LIST Parts without Parts No are not supplied I es ill 11CI S 11017 I I P I ionnrs oans le Parts No ne so1 11 133s r o n I cii ohlie Parts No wet aer 1 11c ht g e l r r r t 1 Ref No d d r e s s l e w l P a r t s No 1 Scandinavia K USA anada Y PX Far East Hawaii T England E Europe Y AAFES Europe kAustralia M Other Areas TX RX UNIT X57 4590 XX 1 Description SMALL F I X E L INDUC rUR I U N H SMALL F I X b U I NDUC TUR 6 HNH F T L T E R H 6 U M H Z F I L T E R Y3HMHZ C O I L 5 5 T C B I L t 2 T C B I L 2 T C O I L 5 5 T C N I L 2 T C B l L 2 T C O I L 3 5 T S M A L L F I X E D I
2. E EPROM data output Flash memory write protect A8 A15 Bus External access Power on reset p p AVss P34lPWMO P35lPWMI P36 CLROR00 P37lCLRlR01 P501A8 P57lA15 E A RESET External RX data output M crophone mute When receive iink GND Not use Noise pulse input Not use I I Not use 800 900MHz band input 0 48 49 50 57 58 59 60 Unlock signal input 1 61 WRp ALE P40lADO P471AD7 VDD PO0 PO 1 PO2 0 0 W r t e Bus Address latch ADO AD7 BUS 5V PLL data enable PLUEEPROMlShift register converter clock 0 PLLIshift registerID A converter data SEMICONDUCTOR DATA Microprocessor 75308BGK740BE9 LCD Assy IC2 Terminal connection diagram P6 1 P62 P63 P70 P7 1 P7 2 P73 RESET S 0 S 1 S2 S 3 S4 S 5 S 6 S 7 S 8 S 9 S10 Sl I o m m t w m m m o m m t w m m w m m m m m m m m m m 61 40 PO2 62 39 PO1 63 38 PO0 64 37 P53 65 36 P52 66 35 P5 1 67 34 P50 68 33 Vss 69 32 P43 70 3 1 P 42 7 1 30 P41 7 2 29 P 40 73 28 VLCP 74 27 V L C 7 5 26 VLCO 76 25 BIAS 77 24 COM3 23 COM2 22 COM I 80 21 COMO N m m w t O N m m w t m m z m I10 0 1 1
3. AUTO TEL 1 3 Details of Features 3 1 System Scan r System scan can be selected wlth the SCAN key b y programmlng the scan feature When the SCAIU c key IS pressed and the a mark appears scan mode b IS entered Scann ng starts from the system follow ng the currently dlsplayed system When scannlng SCAN IS nd cated on the alphanumerlc dlspay When a call IS received scannlng stops and the sys tem and group are dlsplayed When the system or group or volume AUX key IS pressed dur ng scannlng the scan stops and the revert system or group can be changed Scannlng resumes one second after the key IS released If the scan feature is not programmed the SCAN key on the front panel is ineffective 3 2 System Lockout The system lockout feature IS used to lock systems out of the scan sequence and can be selected by pro gramming in the following two ways Fixed lockout The system to be locked out is selected by program ming When a locked system is selected the Delete Indicator appears on the left of the SYSTEM indi cator The revert system is scanned even if it is locked out If there is a locked system the Delete b indica tor flashes during fixed scanning It does not light continuously or flash during list type scan User selectable lockout If the AUX Auxiliary key is programmed for the scan lockout feature the user can lock systems out of the scan sequence with the AUX key To loc
4. BEF 017 IC9 212 IC6 020 AF PA SP DET 1 st LOCAL OSC PLL 2nd LOCAL OSC z n gt n t gt n h e DET i V c De emphasis vOL SW CIRCUIT DESCRIPTION 4 Transmitter System 4 1 Microphone amplifier The signal from the microphone goes t o the The signal is applied to the IC212 summing amplifier nxcrophone mute switch Q201 off It then passes and mixed with QT and DQT from the CPU IC209 It through the high pass filter in IC205 212 and the pre then passes through the splatter filter the fourth low emphasis lDC circuit in IC205 112 If the option has pass filter consisting of IC21 1 112 2 2 which been installed the signal is mixed with the encode removes unwanted harmonics signal The output from the low pass filter is input to the D l A converter lC6 to adjust the modulation Fig 3 Microphone amplification 0201 IC205 212 IC205 112 IC212 IC211 212 IC211 112 4 2 Final amplifier 4 3 APC circuit The signal from the PLL is amplified by t w o power The direct current that flows through the final modules ICI 2 and IC14 to an output level of 15W and module lC14 produces a voltage across resistors goes through the harmonic filter and antenna switch R108 R109 and R110 This voltage is applied to pin 6 D20 and on to the antenna terminal of lC13 2 2 and is input as the reference voltage IC13 1 2 compares the DC input to pin 2 w
5. It does not light continuously or flash during list type scan BUSY indicator The BUSY indicator goes on if the PTT button is pressed when the trunked system is busy or while a TX inhibit ID is being received CALL indicator The CALL indicator can be prograrnmed so that it goes on when a specified call is received This indica tor goes off when any front panel key is pressed If the KDD 4 is installed and the call flag is Y this indicator does not go on unless the DTMF code matches POWER SW VOL UP LCD SCAN S W AUX S N 1 I I 1 SCAN TEL t I I v Alpha numeric display Fig I OPERATING FEATURES Alphanumeric display The 8 dig t alphanumerlc NN display also shows system and group numbers 8 digit alphanumeric displays can be programmed for each group If the alphanumeric display IS not programmed the system and group numbers are displayed After the dealer s qualfied service technician programs the transceiver the alphanumeric display shows system numbers and group numbers for your s ecific network TA indicator Appears when the Talk around systemlgroup is selected OPT indictor Dlsplays the KDD 4 decode latch of optonal slgnallng AUX Auxiliary indicator Appears when the manual relay or horn alert function IS activated ON by presslng the AUX key Handset indicator Appears when a group I S selected that IS programmed wlth telephone IDS It flashes durlng I
6. PTT PC serial data output HOOK PC serial data output 69 80 SEMICONDUCTOR DATA PLL System SC370651F or MC145190F K PLLIVCO ICI Terminal connection diagram REFin Din CLK VPD OUTPUT A P I_ PUT i3 Rx TEST2 TEST1 9 12 Vcc fin 10 11 fin Block diagram DATA OUT 20 P REFln OSC OR f R 4 STAGE SELECT 5 OUTPUT A 1 DIVIDER LOGIC REFout CONFIGURABLE 1 N 3 13 DOUBLE BUFFERED Bit GrabberTM R REGISTER 16 BlTS t Bit Grabberm C REGISTER 8 BITS 1 I STANDBY POR LOGIC Bn Grabberm A REGISTER 24 BlTS 6 STAGE 12 STAGE A COUNTER N COUNTER fin 11 64 65 10 PRESCALER CONTROL fin t LOGIC I A Y y TEST1 SUPPLY CONNECTIONS PIN12 VCC VcTO INPUT AMP AND 64 55 pnCSCALERl PIN5 VPD VcTO PHASEIFREQUENCY 9RS A AND 8 PIN14 VDD V TO BALANCE OF Cl f PIN7 GND COMMON GROUND DESCRIPTION OF COMPONENTS TX RX UNIT X57 4590 XX 10 TK 940 11 TK 941 1 1 Ref No 1 Parts No Use Function OperationlCendition IC1 1 BU4013BF Power supply circuit loglc control 1 Audio amplifier Detected output i 1 NJM4558E 1 NJM78L05UA Voitaqe reuualtor 1 1 1 p P O 8 Voltage regulator NJM4558E Act ve f lter lC6 6 2 3 6 3 Level adluster A IF system NJM4558E N J 4 5 5 t U4094B C F L l Aud o power amplifier I IC13 NJ
7. c C ct c X X C 4 K t 4 1 1 4 Clj I W W W 0 G CJ C C TJ CI m m cs I P I I d I I P I 4 C C 1 C G cn r 2 4 C8 7 XT ct c c c c xxxC3C 1 1 4 4 4 1 W W W W W I C Cf C e T m U c em amp L I C I I P I 1 C C 4 C P r n K 1 i W 1 N 7 x C CI c 4 C e ct 0 e c X 58 5 5 1 l h j 4 K 3 W W 1 W l C CJ G cm cmmc m I P A C I C 8 4 x 4 1 2 I C C G 0 Cm W w c n p f r C x 3 c w w w w w C C C3 c C r c c c m I I I I d amp amp amp I I I I I C L C P O Us 1 C m K m CI C C A x r D C C C cf c r 3 m r m c 7 c C o c C n em em em c o c c c C c c c m c c c c c m c c m c c o c 5 c 3 c c c I I I lt T I C I I I I I I I r I C I I I I I I I I I I I I I I r I I I I I C I It III e H U m m m U H U U U H U U W H W H m u amp r r m e r m 3 T J T J T T TWT Pz Tc nTT T T W T O W TTTT 0 TTTT 0 TTCmmT TTT CCT T c m T T T T T T T w New Parts PARTS LIST Parts wthoi t Parts No are not supplied L C i t r I J I cl il IIC Parts No nc son l ournls Teli otme Parts No w i clc n rictil qc lielert TX RX UNIT X57 4590 XX L Scandinavia PUSA amp Canada Y PX Far East Hawaii T England f Europe Y AAFES Europe X Australia Mother Areas indicat
8. i i i M N PC BOARD VIEW d 4 2 INPUT ICalel VIH TX RX UNIT X57 4590 XX AI2 Component side wiew 10 TK 940 1 1 TK 941 l 2 13 14 o h o n e n t side I I I 75 I I I I I Note Ref No Parts of pattern 1 TX RX UNIT TX RX SECTION X57 4590 XX A 2 10 TK 940 11 TK 941 pLL VCo X58 417o XX 0 1 DTC143EK A1 PLL X58 4170 XX A 2 a 2 2SA1586 Y GR 03 52 53 2SC3356 a 5 1 2SK508NV K52 D l 1 S S 3 0 1 D51 52 1T363A D53 MA360 7 m a o w m o d m a o n A I Y O f L31Y ZL31X V TK 940 iL T lt 941 TX RX UNIT X57 4590 XX D 1 OZCZ18 X Y 02 DSA3Al 04 1 1 1SS301 D7 9 10 12 15 OA204K D8 a 1 6 D l 7 OAN235K D l 8 HSM88AS D19 21 MI809 02C MA4P1250 D22 MA77 DTA114EU O X 1 14EU 2SA1641 S T DTA114YU DTA114TU 2SC4226 R24 OTC144EU O X 3 14TK 3SK24 1 R 2SB1370 2SC4094 R 7 E F DTA144EU DTC 1 1 4YU 2SA1586 Y GR 4 Crirrp Terminal 33 R95 97 100l 081 X l I X2 XFI I p 1 I7 1 YES I 22 lL77 1563 05 114 5 8 2 5 z 4 5 0 3 7 5 1 L72 0 18 1 NO I 0 77 1564 05138 5 0 2 5 6 0 3 7 5 z L72 KCT 18 a LIE aIz23z 7 I AT24C02N1 OS12 7 NJM7
9. the transceiver can be turned on by pressing the power key R125andC161 are used to prevent malfunction ing when a device with a large surge current is connected Fig 9 Power supply circuit BO 1 T SW SB D8 LO R122 R123 AVR LT 4 vAvA SB I 03 030 a IC1 To rectangular receptacle Q27 0 1 SW SW SW DEF SW PSW 1 CIRCUIT DESCRIPTION 7 LCD Assembly The LCD assembiy consists of CPU LCD power switch circuit and tone generator 7 1 CPU The CPU IC2 carrres out the folowlng main operatlons It sends onloff data serially to the control unit from the AF volume control LIPIDOWN key system UP DOWN key group UPIDOWN key SCAlV key and AUX key It receives serial data from the control unit and displays it on the LCD The LCD can indicate alphanumeric characters 13 segments 8 d gits TX BUSY CALL SCAN Talk around Option AUX TEL and Delete 7 2 Power switch circuit Each time the power key IS pressed a pulse IS sent to the TX RX unlt to turn the transceiver on or off 7 3 Tone generator The beeps and alert tones are generated by combining square wave signals of about 700Hz 900Hz and 1500Hz generated by the CPU These signals are output from pins 46 47 and 48 of the CPU IC2 The signals are rectified by a CR network and fed to the TX RX unit LCD assembly and the de emphasis circuit of IC9 212 Fig 10 Tone generator circuit SEMICOND
10. 0 5 7 5 CK73G61H471 K 9 2 0 0 0 4 U 5 CK73FB1EIU4K CK73GBI H1 U3K CK73CB1H472K CK73CB l HiU3K CK73CB1 H lU2K CK73CB1H103K CK73CB l H i U3K CC73GCH lHlUIJ CKr13CB1H1U3K C Y U L U U CY2 0543 05 C92 5 j7 05 CC73CCH1HIUIJ CK73CBlH I U2K CK73FFIClUSZ CK73FB l E lU4K CK73CBlH682K CK73FBlEiU4K CK73CBIHlU2K CK73CBIH682K CY2 0543 05 CC73CCHlH27U T CK73CBIH682K Y4U Desti nation I 10 TK 940 11 TK 941 CHIP C IUUPF J CHIP C IUUUPF K CHIP C IUUPF J C H l P C I UUPF J ELECTRQ 47UUF 25WV CHIP C 47UPF K CHIP C IUUUPF K CHIP TAN I UUF 1 6WV ELECTRQ 4 7UF l6WV CHIP C 470PF K CHIP C U UIUF K CHIP TAN 4 7LIF 6 3WV CHIP C 4 7UPF K CHIP TAN I OUF 16WV CHIP C U IUUF K CH IP C U UlLiF K CHIP C 4 7UUPF K CHIP C U U l UF K CHIP C 1UUUPF K CHIP C U UIUF K CHIP C U UlUF K CHIP C I UUPF J CHIP C U UIUF K CHIP TAN 4 7UF 6 3WV CHIP TAN 3 3UF IUWV CHlP TAN 4 7UF 6 3WV CHIP C I UUPF J CHIP C IUQUPF K CHIP C I UUF Z CHIP C 0 1 ULIF K CHIP C 680UPF K CHIP C U IUUF K CHIP C IUUUPF K CHIP C 6tlUUPF K CHIP TAN 3 3UF lUWV CHIP C 27PF J CHIP C 68UUPF K Re marks mir 1 a ffl co el c c1 c x 5 c 7 c 4 K 8 4 2 4 W 1 W W W Ct c C C m CI c m c P I A X I C I 1 I P I OC8 4P Kt cn CI 4 4 x XC 0 C e
11. 2 J RK73GBlJ470 l RK73GBlJ473J RK73GBlJ102J RK73CB1 J l U2J HK73GB l J 4 7 1 J HK73GBlJlU2J HK73GBlJ1UlJ RK73GB 1 J 5 6 1 J RK73GB l J l U 2 J HK73FB2A271J RK73FB2A2R2J HK73FB2A l 6OJ RK73GB l J 3 3 1 J RK73FB2A271 J RY2 06YY 05 RK73FB2AlU2J HY2 06Y9 05 HK73EB2B471 J HK73GBlJlUUJ RK73FB2A22UJ RK73FB2A22UJ K USA P Canada T England E Europe i D e s t i Re ir amp R k3 CHIP R 22UK J I 1 bW CHIP R 1 5K J l IbW n a t i o n marks 1 I CHIP R 4 7K J I lbW CHIP R 47K J 1 16W CHlP R 2 2 J l l h W CHlP R 2 IK J Ill6W CHIP R 4 7 K J I l6W CHIP R 22K J I l6W CHIP R 56K J 1 16W CHIP H l U O K J 1 16W CHIC H 4 7K J l l6W CHIP R 1 U U K J 1 16W CHIP R 2 2 J 1 16W CHIP R U KJHM CHIP R 82UK J 1 16W CHIP R I U K J 1 16W CHIP R 82UK J I 16W CHIP H 1 2K J 1 16W CHIP H I O K J 1 16W CHIP R 1 O U K J 1 16W CHIP H 8 2K J I l6rJ CHIP R 1 U U K J 1 16W CHIP R 1 UK J 1 l6W CHIP H 1 5K J 1 16W CHIP H 1 U K J 1 16W C H I P R 4 7 0 J I l l 6 W CHIP R l U U K J 1 I6W CHIP R 22K J 1 16W CHIP R 68OK J 1 16W CHIP R 1UK J 1 16W CHIP H 1 UCl J 1 16W CHIP H 560 J 1 16W CHIP H I O K J 1 16W CHIP R 6 8K J 1 16W CHIP R 4 7 J 1 16W CHIP R 47K J 1 16W CHIP H 1 OK J I 16W CHIP H 1 U K J 1 16W CHIP H
12. 4 A 2 k 2 A 1 6 1 C 1 C I C 3 E 1 E 1 E 1 C 1 i 1 0 2 E I E 1 C 1 C 2 8 I C 2 8 I 6 2 6 2 E 2 E 1 6 I 6 lB 2C 2 6 2 6 1 C 2 8 2 6 2 D 3 E 2 D 1 0 2 E 3E 2 E 2 D 3 D 3 U 2 E 1 C 1 D 2 A 2 8 LC 2C 1 8 l C r Y40 9 4 1 9 4 0 9 4 1 AU I I 0 6 5 0 3 A01 1 0 6 6 0 3 A IU 1344 0 1 A 6 2 0 3 4 9 0 3 6 0 9 0 2 3 5 0 5 8 3 8 0 7 3 1 0 5 8 4 2 2 4 5 5 0 4 6 4 2 3 3 4 3 0 4 8 4 2 3 3 9 4 1 4 6 4 2 5 5 2 6 0 4 6 4 6 0 4 0 9 4 0 6 6 2 0 4 5 9 U 0 8 7 2 0 7 0 5 0 4 8 7 2 0 7 5 2 0 4 E 3 0 2 0 3 6 0 5 E 3 U 2 0 7 6 1 5 E 3 0 2 0 8 9 0 8 3 0 2 1 7 2 1 5 E 3 0 3 0 3 1 1 5 E 3 7 0 4 6 0 0 5 E 3 7 0 4 6 1 US E 3 7 0 4 7 0 0 5 F l u 2 1 2 5 0 4 F l u 2 1 2 6 0 3 F 5 1 U 0 1 6 0 5 F 5 1 00 16 05 G U 2 0 5 7 6 1 4 G02 07 11 04 G 1 0 0 7 6 4 0 4 G 1 0 0 7 6 5 0 4 G I I 0 7 2 8 0 4 G13 1468 04 G I 3 092 1 0 4 G 5 3 0 7 7 6 0 4 H 1 0 2 7 8 4 0 2 H I D 2 7 8 5 0 2 H12 1469 02 H 1 3 0 9 4 2 0 4 H 2 5 0 0 2 9 0 4 H 2 5 0 0 4 9 0 3 H 2 5 0 1 0 3 0 4 H 2 5 0 7 9 6 0 4 H 5 2 0 6 0 3 0 4 H 5 2 0 6 1 0 0 4 J 1 9 1 3 7 6 1 5 J 1 9 1 4 3 4 0 4 5 2 9 0 4 4 1 0 3 2 9 4 9 2 8 0 2 N 0 9 2 0 7 7 0 5 N 3
13. CLOCK p n 60 of the CPU IC2091 The sig nas are input to the PLL IC ICli when the channel is 0 1 3 changed or when transmission is changed to reception and vice versa 6 5 Horn control 014 The horn switch consisting of Q13 014 and Q29 controls the horn relay It is supplied by the dealer to Q29 provide the external horn alert function R2 R16 r IGN 029 disables horn alert turning on when its base is high to inh bit the function Normally the output from lClO is low and 013 is off the baseof 014 is about OV and 014 is off When horn alert is enabled the output from lClO goes high and Q13 turns on The base current flows through RE1 to Q14 to turn Q14 on Q14 Fig 8 Horn control circuit can sink a minimum of 800mA 6 6 Power supply circuit D8 protects 1C1 against overvoltage Each time a pulse comes from the PSW terminal the IC1 output is reversed The reversed output signal passes through 0 1 and Q3 and drives 0 4 A voltage must be applied to the IGN terminal If 24V is supplied to the transceiver by mistake Q2 turns on and 0 3 and 0 4 are forced off so the transceiver does not turn on If the SB terminal of the modular jack to which the microphone is connected is shorted or an overcurrent flows R122 and R123 convert the current to a voltage and 030 turns on Its output drives 028 and turns Q27 on and the IC1 output foes high This turns the transceiver off If the terminal is no longer shorted
14. basic char acters and can be displayed in each segment Four digits can be displayed at the same time I 7 71 I l l I I I I 1 1 h I I I I 1 I 1 1 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Fig 2 OPERATING FEATURES 3 19 AUTO TEL Delay tone A telephone interconnect call can be made by sim Th s tone is output when the P n button is pressed ply pressing the AUX Auxiliary key by assigning this and the repeater is accessed three times or more to feature to the key This feature accesses the TEL indicate connection with the repeater is delayed This channel of the available system automatically tone is the same as the Busy tone It is not output of When the AUX key is pressed a queue tone is CLEAR TO TALK has been set to YES output and the AUTO TEL appears on the alphanumeric display along with a flashing handset Proceed tone indicator 3 to indicate that this mode has been This tone is output when the P n button is pressed entered If the TEL ID is set for the revert system the transmiss on starts and the repeater is connected to TEL channel of that system is accessed If all TEL indicate that the user can talk if the Clear to Talk func channels are busy an attempt is made to access the tion has been set The high tone is output for 100ms TEL channels of another system in which the TEL ID code has been programmed It is repeated for 60 Queue tone seconds unt
15. can be changed by changing the display system If many systems have been set the scan speed can be increased by narrowing the systems to be scanned with scan lists 3 26 Data Port The following ports are available for external equipment when the KCT I9 is used B Terminal functions Digital HOR Horn alert port For details of operations see the Horn alert section SO When a carrier is received 5V is output When the carrier disappears OV returns LOK Goes low OV when communication becomes possible I When a repeater is linked by LTR 2 When transmission is started by pressing PTT when using LTR in TA mode 3 When transmission is started by pressing PTT in the conventional mode DTC When it goes low OV the last group in the system is gone to When it goes high 5V the original group returns TXD Serial communicat on output from the internal MPU to external equipment RXD Serial communication input from external equipment to the internal NIPU OPERATING FEATURES C 4 Transceiver Programming Ir 4 1 lntroduction The TK 9401941 transceiver IS programmed uslng an IBM PC or compatlbe machlne a programming Inter face KPG4 and a programmlng dlsk KPG 25D Fig ure 4 shows the setup for an IBM PC Programming disk KPG 25D Fig 4 4 2 KPG 4 Description Optional PC programming interface cable The KPG 4 is reeded to connect the TK 9401941 to the computer It has a circuit in the D
16. input from the squelch circuit QT DQT LTR 5 Controlling the audio mute circ iit according to These data items are output from CPU pin 33 The signal from this pin passes through the CR low pass input decode data filter and goes to the summing amplifier IC212 in the 6 Sending encode data microphone amplifier It is mixed with the audio signal 7 Sendlng data to the D A converter and output to the splatter filter It then goes to the D A 6 1 Memory circuit converter IC6 and on to the VCXO and VCO IC201 is a 2 Kbit EEPROM that stores adjustment 6 3 RX decode data and backup data IC207 is a 256 Kbit flash memory that contains the transceiver control program and Low speed data QT DQT LTRI The receive detection signal is amplified by IC2 21 channel and Operating feature data The and 21 and passes through a ow pass filter lC204 112 to data can be easily wrltten into the memory froln remove audio components This signal is input to pin external equipment IC208 and IC210 control the 27 of the CpU writing of data into IC207 The CPU digitizes this signal performs processing such as DC restoration and decodes the signal Shift register IC10 is an interface IC for I O port expansion It IS used to expand the CPU IC209 output ports IC207 IC6 1c2 212 Fig 7 Control unit block diagram CIRCUIT DESCRIPTION 6 4 PLL data output PLL data is output fronl DATA pin 61 EIUABLE pin 8c HOR 591 and
17. key is held down the Clear to talk system number changes continuously After the External DTNlF decoder The optional KDD 4 DTMF system number reaches the highest system number it decoder is required goes back to the lowest system number System Test mode numbers not set are skipped Horn alert port Data port GROUP UPIDOWN key This key is operated in the same way as the SYS 1 2 Trunked System Features TEM UPIDOWN key When the system number is The following features are available with systems changed the GROUP indicator shows the original programmed for trunked transceiver operation group number the last selected group number in each Group Scan system The group to be set may differ by system i Transmit Inhibit Telephone Interconnect The optional microphone with DTMF pad is required tem scan func Free System Ringback This feature is available only of this key can when a telephone interconnect ID code is selected be disabled by pro AUTO TEL This feature is available only when a telephone interconnect ID code is selected Talk around Can be set for each group System Search 1 3 Conventional System Features The following features are available with systems programmed for conventional transceiver operation Up to 250 MAX channels are programmable in each system Channels are selected using the OPERATING FEATURES AUX key This key toggles the auxiiiary function on and off If this
18. subconnector 25 pin case that converts the RS 232C logic level to TTL level The KPG 4 plug is connected to external socket of the TK 9401941 and to the computer by a conversion cable option with a 9 pin female connector and a 25 pin male connector 4 3 Programming Software Description KPG 25D is the programmlng software for the TK 9401941 supplled on a 3 5 or 5 25 floppy disk Thls software runs under MS DOS vers on 3 3 or later on an IBM XT AT or PS2 or on a compatible mach ne Data car de Input to or read from the TK 9401941 and ed ted on the screen Programmed data can be 4 4 Data Program Mode In thts mode data IS wr tten Into the flash memory In the transceiver When the power IS turned on data program mode can be entered mmedlately When the KPG 4 IS connected and commands can be received PROGRAM IS displayed to nd cate that data program mode has been entered Tunlng can be done uslng an IBM PC and KPG 25D In the same way as In panel tun ng mode You can carry out panel tunlng by select ng test mode on the KPG 25D menu screen and follow ng the nstructions on the screen See the KPG 25D Instruction manual for detalls OPERATING FEATURES 4 5 Clone Mode Figure 51 Programmed data is transferred from one transceiver to another by using a microphone cable 1 Connect the master set to the slave set with 2 Turn the slave set on 3 Hold down the AUX key turn the master set on and keep the
19. terminal shorted On when power swltch on DESCRIPTION OF COMPONENTS D 1 1 02CZ18iX Y I Voltage reference _ _ L 1 D 2 DSA3Al 1 protection A Ref No Q201 Q202 PeveIse current preventon I Surqe absorption k w h e n 5V or more and OV or less UseIFunction M u t i l l c h DC swlrch Parts No DTC114Eup DTC144EU m e x n c e Surae absorution On when 5V or more and OV or less Operation Condition Off when TX Onloif bv no se D l 1 I 1SS301 I Reverse current oreventi011 I i Surge absorption On when 5V or more and OV or less p p Voltage reference DAN235K RF swl ch p HSM88AS I Larae inuut urotectioli D l 9 D20 D21 D22 D201 202 D203 PLL VCO X58 4170 XX 10 TK 940 11 TK 941 MI809 MA4P1250 MI809 MA77 DA204K 1 SS301 Ref No IC1 Q 1 Q2 Q3 pp TWRX switch p ppp TWRX sw tch TWRX swltch DC swltch Surge absorption DC swltch On when microphone mute on 2SK508NViK52 2SC3356 LCD ASSY B38 0731 05 Parts No SC370651 F DTC143EK 2SA1586 Y GRj 2SC3356 Q 53 D 1 D51 52 D53 Oscillator pppp Buffer ampllfler Doubler UseIFunction OperationICondition PLL system Or MC145190F K Lock detect on swltch p pp On when PLL unlocked Lock dete
20. the PTT button is pressed on a re ceive only channel a busy tone sounds and transmis sion is not performed Busy channel lockout The busy channel lockout feature can be pro grammed for each channel If a channel is locked out by pressing the PTT button a busy tone is output and if transmission becomes possible it starts Scanning conventional systems For the convent onal system scan only the revert channel of each system IS scanned If QTor DOT is set for the channel the channels including signaling are scanned The KDD 4 can be set with the decode ID of each group If it is supporled the following features are available Audio mute If the decode latch Input port is low during reception and the LTR data or signaling matches when the squelch is open if signaling is not set the audio is out put During systemlgroup scanning the SCAN dis play changes to the systemlgroup display or alphanu meric display If it is the last call the revert system group returns Call indicator alert tone If the Decode Latch input port changes from high to low during reception and the LTR data or signaling matches when the squelch is open if signaling is not set a KDD 4 alert tone is output CALL lights or flashes or nothing occurs according to the CALL indicator set for each group The CALL indicator1KDD 4 alert tone does not oper ate unless the Decode Latch input port goes high Operation during scan If signaling mat
21. 1 800MHz 900MHz FM TRANSCEIVER O 1994 8 PRINTED IN JAPAN B51 8281 00 N 121 9 C Microphone SERVICE MANUAL BLOCK DIAGRAM LU CO i amp 4170 XX i a 66 LEVEL DIAGRAM 2b FX R ONIT 1x57 4590 XXI BIZ 67 G CIRCUIT DESCRIPTION 27 T X R X U N I X O X X A121 7 1 SEMICONDUCTOR DATA 34 SCHEM amp TIC A G R A M 77 DESCRIPTION OF COMPON NTS b 39 SPECIFICA IONS 83 I PARTS LIST 41 KT 19 ACCESSORY CONNECTION CABLE1 BACK COVER EXPLODED VIEW 55 KDD 4 D rMF DECODER BACK COVER PACKING 56 KPG 25D PROGRAMMING DISK BACK COVER a GENERAL INTRODUC TION SCOPE OF THIS MANUAL ns are recommended for This manual i intended for use by experienced v technicians familiar with similar types of commercial one is
22. 3 2 6 0 6 4 5 N 8 3 2 6 0 6 4 6 TK 940 941 7 M h T A L L l l L A b I N E T U P P E H METALLIC CABINETiLUWEH CHASSIS PANEL ASSY CAP ACSY LCD ASSY LABEL M 4 x 8 MAX LABEL S N Q LABEL LABEL t HY A TT WARRANTY CARD TNSTHUCTTQN MANUAL MQDEL NAME PLATE MQDEL NAME PLATE GRNUND LEAD WIRE ACSY DC CBRD ACSY CURL CQRD FQR M I C ACSY DC CQRD ASSY ANT CABLE ASSY FLAT CABLE 0iSPLY CQNT U N I T LEAD WIRE WITH CQNNECTQR SP 2P FLAT CABLE CBNT TXHX U N I T S H I E L D I N G P L A T E P L L SHIELDING CQVER PLL FUSE I U A ACSY FUSE I U A 2 p c s i D C CQRD FLAT SPRING i A F TC FLAT SPRING APC AVR FIBRUUS SHEET CHASS1S FIBRNUY SHEETiCHASSIS SHEET MQDULAR JACK CUSHIQN tDC CQHD CUSHIQN LCD ASSY PACKING tPHQNE JACK PQLYSTYRENE FQAMED FIXTURE PQLYSTYHENE FQAMED FIXTURE PACKING FIXTURE CAHTNN BNAHD BAG t 6 U x l l 0 BAG BAG 1 2 5 x 2 5 0 B AG ITEM CARTQN CASE ITEM CARTNN CASE MIC HANGER ACSY YQLDERiSP BRACKET ACSY KEY TQP SEMS SCREW F1NAL MQDULE QVAL HEAD MACHTN SCREWiCp E PAN HEAD T A P T I T E SCREW I x Iqpw Parts PARTS LIST Par ts wltnoidt Parts No are not supplied LC articles no l n s l l t i d n l l clar i Ir Parts No ne Son pas fournis Teile ohnc Parts No werden nicht geiefert TK 940 941 TX RX UNlT X57 4590 XX L Scandinavia K USA P Canada Y PX Far East Hawaii T Engla
23. 4 7 0 J 1 16W CHIP R 1 U K J 1 16W CHIP H L U D J 1 16W CHIP R 560 J 1 16W CHIP H 1 UK J 1 16W CHIP R 270 J I IUW CHIP R 2 2 J l lUW CHIP H I 8 J 1 10W CHIP R 3 3 O J 1 16W CHIP R 270 J l lUW SQL I D 1 U 1 2W CHIP R 1 O K J 1 0W SOL ID I 0 1 L W CHIP R 470 J 1 8W CHIP R I 0 J l l b W CHIP R 2 2 J l lUW CHIP H 2 2 J 1 1UW Y4U 9 4 0 940 LCD ASSY 638 0731 05 Component side view LCD ASSY B38 0731 05 Foil side view PLLIVCO X58 4170 XX A 2 1 0 TK 940 1 1 TK 941 Component side view PLLIVCO X58 4170 XX A121 Foil side view REF GND VIN PLLIVCO X58 4170 XX B12 Foil side view Component side Pattern 1 Pattern 2 Foil side 1 I Ref No I Address Ref No d d r e s s l component side i Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side ITX RX UNIT X57 4590 XX B 2 Component side view 10 TK 940 11 TK 941 _ Ref Nc IC201 IC202 IC203 IC205 IC20E Component side 1 O Connect 1 and 4 Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side I I I I I I DTCI 14EU DTCI 44EU L I I Component side 2SB1 1 Pattern I Pattern 2 Pattern 3 Pattern 4 I Sidel I I i i I I I I I I I i 1 i I i i I 1 TX RX UNIT iX51 4590 XX 11 12 Foil iide view 10 TK 940 11 TK 941
24. 5kHz slgnal then goes throug 55khL ce ramic filter CFI is amplifl 5y the Ilm ampllfler demodulated by the quac re FM de or In the same IC and output to tht elve audlo lpl f er AF AMP MIC AMP S P A 45 0375MHz TK 940 TK 940 TK 941 806 825MHz 896 902MHz 851 870MHz 935 941MHz I PLL VCO 44 5825MHz TK 940 39 0375MHz TK 941 38 5825MHz TK 941 MIC AMP CIRCUIT DESCRIPTION 3 3 Audio amplifier unit The demodulated signal is amplified by IC2 2 2 and goes through a low pass filter consisting of IC5 11 21 a high pass filter cons sting of IC5 2 2 and a BEF consisting of IC9 112 to remove the unwanted audio signal The signal the passes through the de emphasis circuit consisting of the AF switch Q17 on and IC9 21 21 and the volume level is adjusted by the IC6 D A converter The resulting signal goes to audio amplifier IC11 is amplified and is output to the speaker 3 4 Squelch circuit The detector output is amplified by IC2 212 and passes through a high pass filter consisting of IC204 2 2 which removes the noise components from the signal Q202 converts the noise pulse level by hysteresis and applies it to the CPU lC209 The CPU counts the pulses integrates them and turns the squelch on and off according to the calculated value D19 21 BPF RF AMP BPF 1st MIX MCF 1st IF MIX DET IF VOL UPIDOWN Fig 2 Receiving system AF AMP LPF H PF
25. 8L05UA IC203 HO74HC373FP AT29C256 20TI TC7S32F 78312AGF3563BE TA75S01 F ccrl ASS Y DISPLAY S ECTION 838 IC209 78312ACF3563BE Note 0 Ref No Parts of pattern 1 Eqqzj 10 11 JJP YES SC RESET
26. AUX key down for two more seconds CLONE appears on the display to indicate that clone mode has been entered 4 Press the SCAN key on the master set The a mark appears and data is sent from the master set to the slave set PROGRAM appears on the slave set to show that it is receiving data 5 When cloning is complete the a mark on the master set disappears and CLOIVE changes to END The slave set is automatically reset and enters user mode If cloning fails the master set shows ERROR Repeat steps 4 and 5 If you wish to clone several sets switch each of them on and reDeat 4 and 5 5 Description of Each Modes 5 1 Dealer mode To enter this mode hold down the GROUP UP key turn the transceiver on and keep the GROUP UP key down for t w o more seconds The mode can be inhibited by programming SYSTEM key Used to select one of programmed frequencies 1 to 16 If no frequency data has been preset the frequency listed in Table 1 is written as the default value OPERATING FEATURES GROUP key 5 2 Panel Tuning Mode Used to select the signal ng encodeldecode data or This mode can be inhibited by programming The squelch adjustment following can be adjusted with the front keys Squelch level Table 2 down for two more seconds The display changes from TUNING to 800MHz TK 940 or 900NIHzU TK QT fine deviation DQT fine deviation LTR ID fine deviation RF power DQT balance Maximum deviation Freque
27. CH1 H0 1 UC CC73GCH l H I R 5 C CC73ECH l H 4 7 U J C K 7 3 E B 1 H 1 0 2 K C 9 3 U 5 5 6 0 5 C 9 3 0 5 5 2 0 5 C Y 3 U 5 5 0 0 5 C Y 2 0 5 U 7 0 5 CC73FCH l H 4 7 U J CC73GCH l H l u l J 9 2 0 0 4 0 5 C K 7 3 F B l E l O A K C K 7 3 G B l H I 0 3 K C K 7 3 C B l H 1 0 2 K CC73CCH l H I 0 1 J CC73tiCH lH l J C C 7 3 C C H l H l U l J C C 7 3 G C H l H l U l J c u u J s C K 7 3 G B l H 1 0 3 K CC73GCH1 H I 0 1 J C K 7 3 G B 1 H l U 3 K C Y 2 0 5 0 7 0 5 C K 7 3 F B I E 2 7 3 K Address 15 E New Parts g X 1 r u x z gt gt 7 1 z g l z m s u 2 r a 0 2 5 i X m z g w Z Z a 5 s _ 2 5 a 2 3 2 L 3 5 m gt 2 z 0 7 cf cr gt a c T p T w amp id 7 L Z 0 r r r r r r r r o o o 1 4 4 c i c em C c C gt c C c c C C C C c C C c C C C C C C c C c C men L r P P W L n T Q I h r Z Z Z Z Z Z Z Z K C K K K gt K h f K K K l K l C K K K K h l K K K K K C h h K 4 4 C gt ct t p m p w c t 4 m L n P W K c u 1 4 m C n P K C C u Im Jlcn gt m h L n w h3 r n W hl Ln P C8 W I f Vi X X X Y X Y X X X Y X r r r r r r r r rn m m m
28. E k l C 2 P F 1 C H I P C 1 UUPF J C H I P C I P F C C H I P C I 5 P F C C H l P C 4 7 P F J C H I P C l i l U u P F K F I X E D C 6 P F F I X E D C 2 P F F I X E D C I P F C H I P T A N 4 7 U F 6 3WV C H I P C 4 7 P F J C H I P C 1 u O P F j C H l P TAN 1 UUF l 6 W V C H I P C U l U U F K C H I P C U O I U F K C H I P C 1UUUPF K C H I P C 1 UUPF J C H I P C 1 U U P r J C H I P C I U U P F J C H I P C I U U P F J C H I P T A N 4 7 U F 10WV C H I P C U 0 1 U F K C H I P C I U O P F J C H I P L U U lUF K CH1P T A N 4 l i U F 6 3WV C H I P C U 0 2 7 U F K P a r t s No frbD B C C 7 3 G C H I H 4 7 U J C K 7 3 C B I H I U 2 K C C 7 3 G C H l H U 2 U C CK73GB l H l 0 2 K C C 7 3 G C H I H 4 7 U J y 2 j 4 j 5 CK73GB l H 1 0 2 K C K 7 3 F B I H 4 7 3 K C K 7 3 G B 1 H 1 0 2 K C C 7 3 G C H l H I U l J c y 2 0 4 U U 5 C K 7 3 G b I H l U 2 K C C 7 3 G C H I H I O I J CK73Gb l H I U2K C C 7 3 G C H l H 4 7 U J C K 7 3 G B 1 H 1 0 3 K C C 7 3 G C H l H l U 1 J 9 2 j U 4 5 C K 7 3 G b l H 1 0 2 K CC 3GCH lH j3 C C C 7 3 G C H I H 4 7 U J C K 7 3 G B I H 1 0 2 K C K 7 3 F B l E 1 0 4 K CC73GCH l H I U I J C Y 3 0 5 5 0 0 5 C 9 3 0 5 5 2 0 5 C K 7 3 G B I H 1 0 2 K C C 7 3 G C H 1 H 4 7 U J C K 7 3 G B 1 H 1 U 2 K C Y 3 5 5 2 0 5 CC73GCH1 H CC73G
29. I 1 I I I I I I I I I 0 Pin Name P32 P33 VDD XT1 XT2 N C XI X2 P60 P6 1 P62 P63 P7 0 P7 1 P72 P73 RESET 1 Function Open not use Serial data output 5V 5V Open not use Open not use System clock input AUX swltch input SCAN swltch npui Volume up switch input Volurne down switch input Group up swltch input Group down switch input System up switch input System down swl h input System reset nput LCD output 532 S21 Function LCD output S20 SII LCD COMO COM3 output LCD power supply voltage LCD voltage level generator Open not use GND Open not use HOOK PC ser al data input Open not use Ser al data input PTT PC serial data input Open not use Beep output HI e i p output Med I10 0 0 0 I I I 0 0 0 0 0 Terminal Pin No 1 20 21 24 2 5 26 28 29 32 33 34 37 38 39 41 42 43 4 5 4 5 46 47 4 8 49 50 51 Pin No 52 53 54 I 55 1 56 57 58 59 60 61 6 2 63 64 65 66 function Pin Name S12 S31 COMO COM3 BIAS VLCO VLCZ P40 P43 Vss P50 P53 PO0 PO1 PO3 PI 0 P I 1 P12 P I 3 P20 P21 P22 P23 P30 P3 1 Beep output Lo 4 1 67 Open not use 68
30. Ll P32ICll V PBIICTRLO P3OlCIO Terminal function 3 4 5 6 7 8 9 10 11 12 13 14 Pin No 1 7 P I 0 P I 1 P12 Function GND Low meed data innut I Pin Name PO6 p PO7 Pin No 26 1 27 I10 I 0 P13 PI 4 P I 5 P16 P I 7 P20INMI P21 1NTEO P22 1NTEl P23 INTE2 Pin Name 11 0 Vss 1 AN0 I Function Opt on signaling transpond PTT D A converter enable I I 0 15 P24nXD 0 External TX data output 47 RD Read Bus 16 17 18 19 20 21 22 External PTT External HOOK Olnt on s qnal nq reset I 0 110 I 0 7 I I I Not use Data output with clone PTTIdata output with programming Data group control input MDT KEY Transmit Active H GND For display serial RX data input HOOKfdata input with programming Data inputwith clone 23 P33 CTRLI I Option signaling decode latch 62 PO3 0 Shift register a b l e PO4 24 XI 12 000MHz 63 0 For display serial TX data output 25 X2 PO5 0 P25 RXD P26 SCK P27lCTS RFSH P3O CIO P31 CTRLO 3 8 2 1 1 28 29 30 3 1 T AVREF O I 0 O 32 33 34 35 36 37 44 45 4 6 I 0 I 0 I I I AN1 AN2 AN3 5V GND Low speed data Signaling output Not use
31. M2904M Comparator DC amplifier I El AT24C02NlOS12 7 EEPROM T a 7 a c i t y 2 Khit NJM78L05UA Voltage regulator I IC208 TC7S32F DC swltch L when IC207 access L when writlng program or data from external equipment I I 1 1 DTCll4EU DC swltch f wm d then Q3 turn off I FAA fl ter DTA114EU DC switch a 3 DC switch On when power swltch on 2SA1641 S T Q4 DC switch On when power swltch on Q5 DTA114YU DC switch Oh when power switch off then D22 turn on Q6 7 2SB1188iQ R DC switch RX OV TX 8V 0 8 2SA1362iY DC switch RX 8V TX OV 0 9 DC switch On when PLL lock Q10 On when PTT switch on DC switch 0 1 1 DTC114EU On when RX Q12 DTC114EU On when TX DC switch Q13 DTC114EU DC sw tch On when horn control on Q14 2SD162415 DC switch On when horn control on Q15 2SC4116 GR Ripple filter Q16 2SC4215 Yi RX I st IF amplifier 45 0375MHz TK 9401 39 0375MHz TK 941 0 1 7 DTA114TU Muting switch On when no beep sound at busy Q18 2SC4226 R24 1 RF amplifier 019 DTC144EU DC switch On when no beep sound at busy Q20 DTC3 14TK Muting switch Off when busy 3SK241 R APC controller On when PTT switch on Q26 Q27 DTA114YU 028 Q29 DTC114G 1 On when IGN line H Q30 2SA1586 Y GR I DC switch I On when modular lack SB
32. N D i J C T B H 2 2 U H S M A L L F I X k D I N D U C T B R 5 6 N H S M A L L F I X E D l N D U C T U R 6 8 N H S M A L L F I X E D I N D L l C T B H 4 7 N H S M A L L F I X E D I N D U C T amp I H 6 H N H VCXB 1 2 8 M H Z VCXU 1 2 8 M H Z C R Y S T A L H E S B N A T Q h 4 4 5 8 2 5 M H Z CRYSTAL H E S U N A T O h 1 1 3 8 5 8 2 5 M H Z HESBNATUH MCF 4 5 0 3 7 5 M H Z MCF 3 9 0 3 7 5 M H Z C H I P H L OK J 1 1 6 W C H I P H I OK J 1 1 6 W C H l P H U UHM C H I P R 0 BHM C H I P R I OK J 1 1 6 W C H I P R U BHM C H I P H 1 0 K J 1 1 6 W C H I P H O U H h C H I P R I 0K J 1 1 6 W C H I P R 1 UUK J 1 1 6 W C H I P H 1 2K J 1 1 6 W C H I P R 4 7 K J 1 16W C H l P H I 5 K J 1 1 6 W C H I P H 1 UOK J 1 1 6 W C H I P H 4 7 U J 1 16W CHIP H 1 UK J 1 1 6 W C H I P H I 5OK J I l 6 W C H I P R 4 7 K J 1 16W C H I P 1 UK J l 1 6 W C H I P H 2 2 0 K J 1 1 6 W C H I P H 4 7 0 K J 1 16W C H I P H 1 UUK J l l 6 W C H I P R 2 2 K 3 I I 6 W C H I P R 1 UOK J 1 16W C H I P R 2 2 K J I l 6 W C H I P H 1 8 K J 1 1 6 W C H I P H 4 7 J l l b W C H I P R 6 8 J 1 1 6 W C H I P H 4 7 K J 1 1 6 W 1 OK J l 16W Desti Re nation marks Y4U Y 4 1 9 4 0 9 4 1 a indicates safety criti
33. UCTOR DATA Level Adjuster M62363FP TX RX Unit IC6 Block diagram VINB VouT8 Vour7 VlN7 GND RESET V o r r f Da VING V O U T Vou15 VIN5 18 17 16 I I I I I I I I I I I I I I I I 7 8 VIN V O U T VOUT2 VlN2 V00 LD CLK Dl V I N V O U T VOUTA v 1 4 Audio Power Amplifier LA4422 TX RX Unit IC11 Terminal connection diagram Block diagram DC BS IN OUT NFb NFa I I I 8 GND I SEMICONDUCTOR DATA EEPROM AT24C02NlOS12 7 TX RX Unit IC201 Terminal connection diagram GND 7 b TEST Block diagram 8 Vcc Terminal function I PI name I Functon Ser al data Ser al clock No connect GND START STOP LOGIC SERIAL SCL S DA 41 O A2 A1 Ao O 1 OUT CONTROL EN H V PUMPfllMlNG D LOGIC D LOAD 4 DEVICE DATA REGISTER ADDRESS COMPARATOR LOAD INC I Riw DATAWORD O ADDRESS 2 COUNTER n EZPROM X Y DEC w SERIAL MUX b DIN b C DourIACK LOGIC SEMICONDUCTOR DATA Microprocessor 78312AGF3563BE TX RX Unit IC209 Terminal connection diagram 0 z S s 7 s 3 a L R P42lAD2 52 3 2 P43lAD3 53 31 P44lAD4 54 30 P45lAD5 55 29 P46lAD6 56 28 P47lAD7 57 27 Vuo 58 26 PO0 59 25 PO1 60 2 4 PO2 6 1 23 PO3 62 2 2 Po4 63 n 2 i vss 4 X2 4 X I M P33lCTR
34. ad d rectly to the battery negatlve termlnal 4 The cable prov ded wlth the radlo IS suff c ent to handle the maximum radio current demand If the cable must be extended be sure the addit onal wire IS suff c ent for the current to be carr ed and length of the added lead SERVICE This radio is designed for easy servicing Refer to the schematic diagrams printed circuit board views and alignment procedures contained in this manual Note When you modify your radio as described in systern 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 6V IA Insert a 1A fuse if you use the SB pin for external equipment Accessory connector cable KCT 19 Fuse IA If you do not intend to use the 3 5 mm jack for the external speaker fit the supplied speaker jack cap B09 0235 XX to stop dust and sand getting in Speaker jack cap B09 0235 XX SYSTEM SET UP Merchandise received P t License and frequency allocated by FCC I Choose the type of transceiver Y See page 16 Modify the control unit when used KDD 4 w The frequency and signaling option data are programmed for the transceiver Frequency range MHz TX 806 825 851 870 RX 851 870 TX 896 902 935 941 RX 935 941 I See page 21 See page 21 Are you using the external speaker KES 3 External speaker Option 1 Option Transceiver program
35. al radiotelephone operator s li re is no license required to install or operate FCC COMPLIANCE AND TYPE NUMBERS 3 PRE INSTALLATION CHECKOUT 3 1 Introduction Each rad o IS adjusted and tested before shipment However it is recommended that recerver and trans mitter operation be checked for proper operatron be fore nstallat on 3 2 Testing The radio should be tested complete with all cabl ng and accessories as they wrll be connected In the f nal installatron Transmrtter frequency dev at on and power p t p u t should be checked as should recelver g n j t i v i t y squelch operation and audio output Q equiprnent operation should be verif ed Complrance Part 90 Part 90 Type acceptance number ALHTK 940 1 ALHTK 941 1 Frequency range 806 870MHz 896 941 MHz 9401941 E INSTALLATION 5 INSTALLATION PLANNING CONTROL STATIONS 5 1 Antenna system e vehicle and determine how and where Control station The antenna system seect on de pends on many factors and IS beyond the scope of this cable runs for protection against pinching or manual Your KENWOOD dealer can help you select g wiring and radio installation to prevent over an antenna system that will best serve your particular needs 4 2 Antenna 5 2 Radio location The favored location for an antenna Is In the center Select a convenlent location for your control stat on of a large flat conduct ve area usually at the r
36. cal components 47 x New Farls PARTS LIST Parts w i t h o t Parts No are riot silpyJl ed I es sr tlces non n c ntliCli s flmc Ie Parts No no sent pas fourr ls Tcile ot rJe Parts No vvertleri riictlt gc ll lert TX RX UNIT X57 4590 XX f NO S F R3Y HA0 R41 42 HA3 HA4 R45 R46 HA7 HA8 R A Y R50 RS 1 R52 RS3 HS 4 R55 5 6 R 5 8 R5Y R6U 6 1 R62 H63 R64 H65 H66 R 6 7 R68 R6Y H 7 0 R 7 1 R7 2 R73 H74 7 5 R 7 6 R77 H78 R7Y R8 1 R8 2 H83 R84 H85 R86 H88 R87 Y AAFES Europe X Australia M Other Areas indicates safety critical components Address 4 ES New Parts j R8 Y R90 R 9 1 H92 H94 H Y 3 I R95 HY6 H97 R98 1 Scandinavia Y PX Far East Hawaii D e s c r i p t i o n P a r t s No iiiL amp 3 amp HK73CB1 J 2 2 4 J RKr 3CB I J l 5 2 J R K 7 3 i 8 1 4 7 2 HK73GB l J 4 7 3 J HK73GBI J22UJ RK73tiB IJ273 l RK7SGB l J 4 7 3 J RK73GB13223J HK73tiB1JS63J HK73GBlJIUAJ RK73GB1J472J HK73GBIJIOAJ RK73GB l J22UJ 9 2 1 2 5 2 0 5 HK73GBlJ824J RK73GB1 J lU2J HK73GB l J 8 2 4 J RK73GB1 J l 2 2 J RK73GB l J l 0 2 J RK73GB l J 1 UAJ RK73GBlJ822J HK73GB l J 1 U4J RK73GB l J 1 0 2 J RK73GB l J 1 5 2 J RK73GBIJlU3J HK73GB l JA71 J RK73GB1 J 1 0 4 J HK73GB l J 2 2 3 J RK73GBlJ684J RK73GB1 J1U3J RK73GBlJ lUI J RK73GB l J S 6 1 J RK73GB l J 1 0 3 J RK73GB1 J 6 8
37. ch and Interconnect operat ons If the transmlt for longer than the pro ter IS dlsabled and a warn P l T button IS held down he P l T button IS released ute for dlspatch and three 3 9 Priority ID Codes The priority of the programmable decode ID codes for each system is as follows 1 Fixed ID code 1 2 F xed ID code 2 3 Selected ID code 4 Other selectable ID codes Group scan only 5 Block decode codes When a call with a higher priority is received that call is received immediately except when the trans ceiver is trunked out 3 10 Group Scan Operation Group scan can be programmed for each group In addition to the ID codes of the selected group the ID codes of the other groups that are permitted for group scan are decoded The two fixed ID and block decode codes are always decoded If during group scanning a call is recelved with one of the selectable group ID codes for which group scan is enabled the group display indicates the group num ber that the call came in with That group then be comes the new selected group Group scan resumes after the specified drop out delay time or dwell time shared by the system scan elapses 3 1 1 Transmit Inhibit The transceiver can be programmed wlth a transmit inhibit block of ID codes If an ID code within this block is decoded the preset time before the PTT button is pressed transmission is inhibited The BUSY indicator lights and a busy tone sounds until the PTT button
38. ches during scanning the scan stops at the system The display shows SCAN until the Decode Latch input port goes low When the port goes low the system group is displayed 3 23 External Decoder KDD 4 Option TK 9401941 The optional DTMF decoder KDD 4 ca in the transceiver Use of the optional dec programmed for each group for each chan ventional system The monitor key fun external decoder reset key r I I I I I i I I I KDD 4 I I I I I I I I Fig 3 I OPERATING FEATURES 3 24 Horn Alert 3 25 System Scan Type Horn alert can be set to on or off for each group Fix system scan Elther cont nuous or non continuous operation can be AII the set systems except locied out ones are set by the FPU The horn alert port IS enabled or scanned If the DELIADD feature IS asslgned to the d sabled as follows AUX key t can be controlled from the front panel Enable D sable Non continuous If Horn alert has been set to YES for a group and DEC ID OT DOT matches the horn alert port HOR is turned on and off as follows HOR 4 The timing when the fixed LTR ID matches is as follows The group for which the optional signaling is set works by ANDing the decode ID with the optional signaling Continuous Reset with the AUX key or by setting offhook IDIQTIDQT match 1 List type scan A scan list can be set for each system The list to be scanned
39. connect ID in g the revert group locatlon If the group ID IS a dlspatch ID the transcelver attempts to access other systems that have a dlspatch ID programmed In the revert group locatlon If there IS no system to be accessed an Intercept tone sbunds the mode IS termlnated and the trans celver returns to the flrst system If the access IS suc cessful the mode IS termlnated and the searched sys tem becomes the new selected system If durrng scannlng the scan stops 3 15 Transpond Thts feature can be programmed to turn on and off each group If the ID of the group for which trans d IS enabled is received two data messages trans ID and turn off code are automatically transmitted mmed to turn on or off for button is pressed for the nd feature is set the home r transmission and the re rformed Signaling must 3 17 Preferred System Revert This feature is available by assigning this feature to the AUX Aux liary key The feature is used to move the revert system group to the fixed programmed sys temlgroup qu ckly When the AUX key IS pressed during scanning the scan stops temporarily and the revert systemlgroup is displayed The scan resumes about one second after the AUX key is released 3 18 Alphanumeric Display Select The systemlgroup number display and the alphanu meric display can be switched with the AUX key by assigning this feature to the key Figure 2 shows the characters that can be displayed These are
40. ction switch On when PLL unlocked Buffer amplifier p p p p 2SC3356 1 SS301 1T363A MA360 DC switch Vanable dlode Modulator OperationICondition p 5V ppp On when PLL unlocked Frequency control UseIFunction Voltage regulator M croprocessor LCD Ref No IC1 IC2 ED1 Parts No NJM78L05UA 75308BGK740BE9 638 0722 05 PARTS LIST I p CAPACITORS 45 220 J Capacitor value 1 2 3 4 5 6 010 lpF 0 22pF cc4 riq i 1 Type cerarnlc electrolyr c etc 4 Voltage ratlng 100 10pF 2 Shape round square ect 5 Value 101 1 OOpF 2nd number 3 Temp coeff c enl 6 Tolerance 102 1OOOpF 0 00111F 1 st number 103 O O I F Temperature coefficient Voltage rating Tolerance Less than 1 OpF Chip capacitors Refer to the table above except dimension EX a 73 a amp I QQQ 1 2 3 4 5 6 7 Chip CH RH UJ SL Example CC45TH 470 6Opprni0C Chip 0 F No code More than lo 10 50 Less than 4 7pF 10 75 RESISTORS Chip resistor Carbon EX Q73EBBm 1 2 3 4 5 6 7 T Blue 470 1 st Word Coloi p p m T Chip B F U Violet 750 L Red 80 C Black 0 M i 2 0 C o d e C I Carbon resistor Normal type EX B B 1 2 3 4 5 6 7 D F0 5 k0 25 1 Type ceramic e
41. e PTT button 1s pressed for transmission and re sponse within the drop out delay time the system or group is assigned as the new revert system or group 3 6 Scan Message Wait The time for staying wlth the home repeater that receives a signal during system scan and monitoring data messages can be programmed If there is no sig nal from the home repeater the system is scanned for about 50ms If there is a signal three data messages are monitored Normally three data messages a re monitored for each system and it can be increased in multiples of three data messages per line to up to eight lines If the repeater data message indicates that there is no call data monitoring is terminated and the home repeater of the next system is scanned 3 7 Call Indicator The call lndlcator can be programmed for each group In trunked systems t can be set to respond to a selectable decode ID or one of two flxed IDS except block IDS When a call IS recelved wlth a selectable decode ID the call Indicator flashes When a call 1s I recelved wlth a flxed ID the call lndlcator lights con I 1 tinuously I In a convent onal system the call indicator can be 1 programmed to l ght for each QT or DQT code It keeps flashlng while a call IS belng recelved It IS turned off by presslng any front panel key 3 8 Time Out Timer 1 The tlme out timer can be programmed In 15 sec I onds increments from 15 seconds to ten mlnutes for pat
42. e RF amplifier iQ181 and output to the transmit or receive unit vla the RF switch D17 I PLLJVCO UNIT _I _1 I IC209 rl D amp A irl _ _ __ Us Q52 Q53 I 018 D l 7 PLL Fig 5 PLL unit block diagram X I 5 2 PLL unlock When the PLL is unlocked the lock detect signal LD of the PLL IC ICI is rectified by D l and Q2 and converted to a DC signal This signal cuts off the power to the RF swltch iD17 and drive module ICI 2 stopping unnecessary transmission LPF 12 8MHz I Q9 LD DET INV SW Fig 6 P LL unlock circuit 1 VCXO IC6 MB FC IC8 212 at VCO BUFF X2 I RF r I AMP CIRCUIT DESCRIPTION 6 Control unit The control unit colisists of CPU IC2091 and its peripheral circuits It controls the TX and RX units and transfers data to and from the LCD assembly The CPU has the f o o w n g main functions 1 Switchlrig betweeri transmission and reception according to the P T slgnal input D A converter IC6 is used as a conventonal semi fixed resistor converter It sets the following 1 Reference oscillator frequency 2 Transmission power 3 Modulation level 4 Audio power 2 Head ng system group frequency and program 6 2 TX encode data data frorn the mernory circuit 3 Sending frequency data to the PLL The CPU IC209 transmits encode data 4 Turning the squelch on and off according to the pulse signal
43. e fi 71 T T T V T T T T C c c c c T C C c c C c C C c c r H 1 x x x x x m c e r r r 3 r T I T I I I X T I I I L I I I I I I I I I I I I I I I I r r D b D D p m m z P fi w e D Z D D Z Z Z Z r r u H H H H r u r 3 c i w H w 3 3 r r r r r r r r D p C 8 C rr C Z i i i T T T T T T T C T W T T T T T T T S T T T T T S T T T T m m r r r r r r r r x x a m r m D c C r c i m m H U H m C fi p c B s e C C m I I C C Z C C C Z C 3 c C P c C h r n T I I T T T IC CJ Q D U J D D Z Z Z Z P D a P P lt S H 3 H 3 H H c m lt m Z Z Z Z z z Z Z WO X x x x x x x x v n a 4 c 8 r r r r n m r n m m u m m m m m n r n r n D D x m WJ m m c Cm t c e w e c c c r r r C amp 3 1 3 3 4 71 4 3 7 c n e a e e N H H H H H m m m x e m m m r m z z z z z z z z z m z m z z p p u P C W i i 4 d 4 C C C P P C K c U C C w c c c c ce Z 3Z Z D D P P 4 C j W C c m h j C i m C I 4 K W E C C C C C C C C P P P m m n v l m f i v l n d c ctclcc c c c c c c m c c c C T d C C C C T C C Vi d p CI c C C C C C Ce Cn Lr Ln Ct CI CsWLCJWW 7 1 C T C C C T T T C I T C C h3CC411hl T T T C C P S C T T K 3 3 3 3 3 3 3
44. es safety critical components Ref No Fa4 C I 2 U C 1 2 1 C 1 2 2 C 1 2 3 C 1 2 4 C 1 2 5 C 1 2 6 C 1 2 7 C 1 2 8 C 1 2 Y C 1 3 U C 1 3 I C 1 3 2 C 1 3 3 C l 3 4 C 1 3 5 C 1 3 6 C 1 3 7 C 1 3 8 1 3 Y C 1 4 U C 1 4 1 C 1 4 2 C I 4 3 C 1 4 4 C 1 4 5 C 1 4 5 C 1 4 6 C 1 4 7 C 1 4 8 C 1 4 Y C 1 5 0 1 5 1 C 1 5 2 C 1 5 2 C 1 5 3 C 1 5 4 C 1 5 5 C 1 5 6 C 1 5 7 C 1 5 8 C 1 5 9 C 1 6 U C 1 6 1 C l b 2 C 1 6 3 C 2 0 1 C 2 1 1 C 2 1 3 C 22 j 23 2 C 2 2 4 C 2 2 5 C 2 2 6 C 127 22i3 C 2 2 9 2 3 i C 2 3 1 C 2 3 2 2 3 3 Desti nation I f 9 4 1 Y 4 U Y Ail 9 4 0 9 4 1 Re marks GI Description D amp B R C H I P C 4 1 1 J C H I P C 1 UUUPI K C H I P C 2 u i C H I P C I U U U P F K C H I P C 4 7 P F J E L E C T R N 4 7 U F 16WV C H I P C IUUUPF K C H I P C U U4 IUF K C H I P C I U U U P F K C H I P C I O U P F J E L E C T H N 4 7 U F l 6 W V C H l P C I U U U P F K C H I P C 1UUPF J C H I P C l U U O P F K C H I P C 4 7 P F I C H I P C U U l U F K C H I P C I U U P F J ELECTHal 4 7 U F I 6 W V C H I P C C H p I U U U P F K 3 P F C C H I P C 4 7 P F J C H l P C I U U U P F K C H I P C 1 K C H I P C 1OUPF J F I X E D C 1 P F F l X E O C 2 P F C H I P C 1UUUPt K C H I P C 4 1PF J C H I P C lUUllPk K F I X
45. give the demodulated signal The transmit signal frequency is generated by the PLL VCO and modulated by the signal from the micro phone It is then amplified by TX amplifier and PA amplifier and sent to the antenna I CF ANT TK 940 TK 941 455kHz TX 806 825MHz TX 896 902MHz 851 870MHz 935 941MHz RX 851 870MHz RX 935 941MHz 1st MIX MCF Fig 1 Frequency configuration ANT RF IF SYSTEM SW AMP 805 9625 824 9625MHz TK 940 3 Receiving System 3 1 RF unit An incoming RF signal from the antenna terminal passes through the antenna switch D19 D20 and D21 are off and then the bandpass filter L9 The signal is ampliked by RF amplifier 024 and passes through the bandpass filter L6 again The resulting signal goes to the flrst mixer 021 where it is mixed with the first local oscillator signal output from the frequency synthesizer t o produce the first IF 45 0375MHz TK 9401 39 0375MHz TK 941 3 2 IF unit The flrst IF s gnal then passes through a four pole mono thlc crystal flter XFI The s gnal 1s ampllfled by flrst IF amplrf er 016 and goes to the second IF unlt The second IF unit cons sts of an IF system IC I C and the second mlxer second local osclllator second IF fllter and FlV detector tC7 mlxes the slgnal Input to t w t h the 44 5825MHriiTK 940 38 5825MHz TK 941 second local osclllator output f the clystal osclilator X2 to produce the second IF c 55kk The 45
46. he transmission When the frequency and signaling have adjustment level been selected wirh the SYSTEM and GROUP keys transmission begins and the TX indicator appears AUX key The time out timer does not work Used to determine the adjustment level Select the level with the GROUP key and then press the AUX key The adjustment level is written into the internal serial EEPROM SCAN key Used to s w t c h between adjustment frequency variable mode and adjustment level item mode Volume key Used to vary the volume or adjust the AF power level INSTALLATION 1 Installing the Signaling Unit KDD 4 D TMF Option 1 1 KDD 4 assembly 1 Solder the 9 pin leads with connector to the KDD 4 board locations designated with the unit specification numbers Fig 1 Fig 1 2 Put an insulating tube around the KDD 4 board and heat it so that the tube encases the board Fig 2 INSTALLATION 1 2 Installing the KDD 4 in the transceiver I Remove the two halves of the case transceiver and the control panel Fg 3 Fig 3 2 Install the KDD 4 on the TX RX unit B12 Fig 4 1 Attach the pad to the KDD 4 0 2 Plug the KDD 4 connector into CIV203 of the TX RX unit BIZ 0 3 Attach the KDD 4 to the TX RX unit 0 4 Reinstall the panel and the two halves of the cases Cornpon cide Fig 4 INSTALLATION 1 3 Setting the KDD 4 code DTMF This product IS bu lt using surface mount construc
47. il the access succeeds If the access This tone is output until the AUTO TEL function is succeeds a dial tone returns from the repeater If the set and the TEL channel is accepted successfully The AUX key is pressed again when the queue tone is mid tone on for 50ms off for 50ms and on for 50ms in sounding this mode is canceled 1 second intervals If the access fails after 60 seconds a deny tone is output and this mode is terminated When the talk Deny tone ends the revert system group returns When the scan This tone is output if the AUTO TEL function is set mode is effective the scan resumes The AUTO TEL the queue tone is output but the TEL channel cannot feature can be programmed to turn on or off for each be accessed within 60 seconds It is similar to the in system tercept tone The m d tone and low tone are output alternately in 150ms intervals 3 20 Audible User Feedback Tones The transceiver outputs various combinations of 3 21 Clear to Talk three tones high mid and low to notify the user of This feature can be programmed to turn on or off the transceiver operating state The main tones are I listed below The h gh tone is 14601iz the mid tone is Clear to talk operation Set to ON 980Hz the and low tone is 730Hz If a dispatch ID is used and the PTT button is pressed when no repeater can transmit a busy tone is Busy tone not output it is output when an interconnect ID is This tone is outpu
48. imp terminal 0 into the square plug 0 both of which are supplied with the KC7 19 Detect output A 5 D 6 MIC input 8 2 GND 2 1 Terminal function DC supp PTT inout No A A 1 A 2 1 A 9 D 4 Dl 1 Data mod innut I No lB C DI D 2 D 5 I A I3 E I LOK Link corn lete o t o i l i I A I 2 Narne HK ME DTC I Data PTT input Function M C hook input MICGND HOR SQ SP A I 4 A I 5 Refer to Term na function on page 63 f need description in detail The functions of A 14 and A I5 are changed if the connector E are connected to CN2 or CN3 of the radio Horn AlertICall output Squelch output Audio outwut RXD DTC TXD E 2 E 3 rnal speaker connector if use external speaker E09 1571 05 Crimp terminal E23 0613 05 Fig RE M M r Serial control data input MIC mute input TXD Serial control data outwut INSTALLATION 3 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 1 i key I j If you use the Horn Alert function KDD 4 requ red or the Manual Relay function you can turn the function I 1 off while driving with the gnit on key t 1 k 3 1 Connecting the KCT 18 to the transceiver
49. is released to indicate that transmission is not possible except clear to talk mode Transmission with the group for which the encode ID is not set is inhibited and the busy tone is output while the PTT button is held down regardless of the clear to talk setting 3 12 TEL ID Codes TEL MODE The ID code in the TEL ID block can be used to make a phone call by programming the block To make a phone calls an optional DTMF microphone is required 1 OPERATING FEATURES 3 13 Free System Ringback gt Thls feature is avalabe only when a telephone inter connect ID code IS selected If a busy tone sounds when the PTT button IS pressed the transceiver enters this mode automat cally When the PTT button is released a beep sounds for 400ms to indicate that the mode has been entered If the scan IS on it is resumed the a mark goes on When any repeater becomes available a ringing tone s o n d s and this mode ends The mode is terminated when the system group scan P n or AUX key is changed 3 14 System Search Th s feature can be programmed to automat cally access other programmed systems when the selected system cannot be accessed If an Intercept tone 1 sounds when the PTT button IS pressed after setting the moae the transcelver has entered the mode c If the group ID IS a telephone Interconnect ID the transcelver then attempts to access In succession other systems that have a telephone tnter
50. ith the difference of pin 5 and amplified reference voltage at pin 3 applied by IC8 1121 amplifies the result and controls the DC amplifier Q22 and Q23 to keep the transmit final current constant thus keeping the transmit output constant DRIVER DRIVER DATA HPF From i c r o h o n e IDC SUM B LPF DRIVE MIC MUTE Fig 4 Transmit power circuit and APC circuit LpF POWER AMP I I 025 026 MO DIAConverte IC6 D20 ANT SW I DC AMP DET SW 8T I I SW I DC A A E l C 2 0 9 LPF CIRCUIT DESCRIPTION 5 Frequency Synthesizer Unit 5 1 PLL The frequency synthesizer consists of a VCXO iXl and a VCO circuit PLL circuit and peripheral circuits The VCXO generates 12 8MHz The frequency sta bility IS withiri i 2 5 p p m TK 940 i I 5pprn TK 941 within the temperatdre range of 30 to 160 C l h i s output enters the PLL C ICI and is divided by 1024 to produce a 12 5kHz reference signal The VCO output from the buffer amplifier 052 is doub ed by 053 amplified by buffer amplifier 0 3 and sen to the PLL IC ilC1 The phase of this signal is compared with he 12 5kHz reference signal in IC1 The output from the phase coniparator goes through the charge pump In ICl and low pass filter and on to the varactor diodes D51 and D52 in the VCO unit keeping the VCO frequency constant The other output from Q53 is amplified by th
51. k 1 Install the KCT 19 in the transceiver See the KCT B 19 section 1 p 2 Insert the KCT 18 lead terminal Q into pin 3 of the I square plug 0 supplied with the KCT 19 theri t insert the square plug into the KCT I9 connector 0 1 3 2 Modifying the transceiver Modify the transceiver as follows to turn the power ontact or the Horn Alert or Manual Relay function on and off 1 with the ignition key i 1 Remove the lower half of the transceiver case KCT 18 2 Set jumper resistors On R5 and R6 of the TX RX Fig 8 t r i unit A 2 as shown in Table 2 t KCT 18 cannot be connected Power cannot be turned on Table 2 R5 and R6 setup chart Thr Alert or Manu2 Relay function can be turned on and off only if the function has been as to the AUX i i INSTALLATION p 4 External Speaker 4 1 KES 3 Option I The KES 3 IS an external speaker for the 3 5 mm i I dameter speaker jack Connection procedure I Connect the KES 3 to the 3 5 rnm diameter speaker jack on the rear of the transceiver 1 4 2 KES 4 Option The KES 4 is an external speaker used w t h the r accessory 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 I 9 3 Connect CN5 of the transceiver to connector C of the KCT 19 instead of t o the inte
52. k a system out of the scan sequence press the AUX key when the system is dlsplayed The Delete b indicator is displayed on the left of the SYSTEM indicator To unlock a system select the system and press the AUX key The Delete indicator disappears to indicate that the system has returned to the scan se quence The revert system is scanned even if it is locked out If there a locked system the Delete b indicator flashes during fixed scanning It does not light continuously or flash during list type scan If all systems are locked out the scan stops and only the revert system is received If another function is assigned to the AUX Auxiliary key the USER SELECTABLE LOCKOUT feature does not function 3 3 Drop Out Delay Time Scan Resume Time If a call IS received during scan the scan stops The scan resume time can be programmed as 0 to 254 sec onds In one second increments The default value IS 3 seconds 3 4 Dwell Time The dwell time 1s the time after transmlsslon ends until the scan resumes In scan mode It can be set to 0 to 254 seconds by programmlng The default value 1s 1 5 seconds OPERATING FEATURES 3 5 SystemIGroup Revert SystemIGroup revert can be programmed for one of the following Last call revert The system or group changes to the revert system or group when a call IS received with the system or group being scanned Last use revert If a systemlgroup call is received during scanning and th
53. key is pressed once the auxiliary function is en abled If the key is pressed again the auxiliary function is d sabled The confirmation tone is the same as that of the scan key The following auxiliary functions are available and can be progl amr iied by the FPU 1 Horn alert 2 Manual relay 3 System scan delete function 4 Fixed revert system call invalid if the system is not set 5 Switching between alphanumeric display and systemlgroup indicator toggle Invalid if the alphanumeric display is not set When the alphanumeric display is selected the confirmation tone is output for about 50ms When the systenilgroup indicator is selected the confirmation tone is output twice output 50ms off 50ms output 50ms 6 AUTO TEL 7 Option signalling reset 8 Invalid 2 2 Front Panel Displays and Indicators System display Indicates the selected system number 1 MAX 32 Only the programmed systems are displayed The system display is located above the SYSTEM UP DOWN key Group display Shows the selected group rlumbei 1 MAX 250 Zero ndicates group 10 Only the programmed groups GROLIP LIPIDOWN key are d splayed The group d splay 1s located above the Scan indicator The a mark on the display goes on in system scan mode Delete 1 indicator When a system locked out of the system scan se quence is selected the mark on the display goes on The mark flashes if there is a locked system during fixed system scan
54. lectrolytic etc 5 Voltage rat ng 2 Shape round square ect 6 Value 3 D mension 7 Tolerance 4 Temp coeff c ent P Orange 1 5 0 X 40 20 Dimension Chip capacitor D rnens on code L I W I T Ernotv 1 5 6 1 0 5 5 0 r 0 5 1 Less than 2 0 G 2 E 1 3 2 i 0 2 1 6 0 2 1 Less than 1 25 F 1 2 0 1 0 3 1 1 25 1 0 2 1 Less than 1 25 R Yellow 220 Z 80 20 Dimension Chio resistor1 S Green 330 P I00 0 J f 5 1 Dimens n code 1 L I W I T Wattage 3 2 i 0 2 1 1 6 k 0 2 1 0 57 28 K 10 Rating wattage Y New Parts PARTS LIST Par ts without Parts No are not suDD1if d LLPS I I I I I S rion ier t iorit r C l i i r i e Parts NO I B son1 pas fo ti nis T eile otlne Parts No wet den ii tit geliefei t L Scandinavia K USA P Canada Y PX Far East Hawaii T England E Europe Y AAFES Europe RAustralia M Other Areas indicates safety critical components Ref NO P a r t s No Pfib 2 amp 4 Address 6 z 1 2 3 4 5 6 7 8 9 1 0 I I 12 1 3 1 3 1 4 1 5 I 6 W 3 W 1 W301 W 2 W20 1 7 0 0 7U 1 2 2 2 4 2 5 2 6 2 7 2 8 2Y 7 0 2 3 0 3 I 3 2 3 3 3 4 3 5 3 6 37 38 3 9 3 9 4 U 4 1 4 2 4 3 A B C New Parts D e s c r i p t i o n D e s t i glr EPa R Re Tg 1 6 2 6 1 C
55. m m rn m m c c c c c c c c c C C c C C C C C C C C Cc C 7 c c c c 4 4 P P P P P P P P 4 4 d m L r i p p p p p amp p p C nCl 5xxxdm C X d C C L x x x c C c x c 4 CC C C Ci C 0 C t K K dm Ci W Ui O O O O O C O 4 K J G 4 4 4 K 4 4 4 4 4 4 K s J 4 4 J J K d 4 d l d d d I I I I I I I I l l I W I W I W W W I W W W W W W l W W W W W l W W W W W h W nb h L W Ki m O I C C C C Ln U L r W W q U 6 C C m C I C gt G C C I C IC C C C t C C C C C OC nC C C C l K c n w 4 a C K a w w c he rn4 K u r m m m c m c m c m m c m c m c C r m tr m fi C r m m a a a l p c r G 4 r U W W P P W W I C I c CP II Id amp C I 4 IIC G Ah LT amp w K u a p a r n W C P U J I I I I I m P m m 4 m r r b K I I I I I I I I I I I I I I I i I I I P W I T I s c K I K I K I I I K3k L x J I K W W W W W W W C C C C C C C C C I C C P C C t 4 W G 4 4 K C K C I K K i C G K JliW G p p w r n m m f l L r 7 r n l r m w L r w L r 4 m c L n w h 3 h m U L r K C K W m W C W C l L n W K W C W C W C 4 7 x c x c x x c c x 4 4 41 c1 c 4 4 L L 4 J f l m m fimfifi ILr ILr LCIc C
56. ming Option See page 18 See page 20 KCT 18 Ignition sense cable N 0 Option RF power 15W 15W See page 13 A personal computer IBM PC or compatible programming interface KPG 4 c Delivery Type TK 940 K TK 9 41 K and programming software KPG 25D are required for programming OPERATING FEATURES 1 Operation Featu tes 2 Transceiver Controls and Indicators Fig 1 The TK 9401941 s an 8001900MHz band EFJ LTRIM 2 1 Font Panel Controls compat ble trunked ladlo deslgned to operate In both All the keys on the front panel ale momentary type trunked and convent ona modes The programmable push buttons The funct ons of these keys are ex features ale summarlzed plained below 1 1 General Transceiver Features POWER key Any combination of 32 MAX trunked and conven Transceiver POWER key When the power is tional systems programmable switched off all the parameters such as the system Up to 250 MAX groups are programmable in each and group are stored in memory When the power is system switched on again the system returns to the previous amp digit alphanumeric characters pare programmable conditions for each group Types system scan is selectable SYSTEM LIPIDOWN key System lockout for scanning When the SYSTEM UPIDOWN key is pressed the Time out timer Dispatohflelephone system number t o be selected is incremented or CALL indicator decremented by one When the
57. ncy TX The mode is entered when the GROUP DOWN key GROUP 1 2 3 4 5 6 7 8 941 and then back to the systemlgroup number AUX key indication When the AUX key is pressed talk around is Select the frequency to be adjusted by pressing the enabled the TAN indicator appears and transmission SYSTENI key when the systemlgroup number is being is possible on the receive frequency When the key is displayed then press the SCAN key Adjustment pressed again talk around is disabled mode is entered and the adjustment level can be Area 0 Goto 12 Home 12 ID 47 Free 25 is held down the power turned on and the key kept TONE None No decode squelch can be adjusted 100H sqilare wave No decode squelch can be adjusted LTR format Decode squelch cannot be adjusted QT 67 OHz Decode Squelch cannot be adjusted QT 1 51 4Hz Decode squelch cannot be adjusted QT 210 7Hz Decode squelch cannot be adjusted DQT 023N No decode squelch cannot be adjusted DOT 754N No decode squelch cannot be adjusted Fj varied between 1 to 256 1 SCAN key When this key is pressed the squelch is turned off SYSTEM key If a carrier is not present white noise is heard The Used t o select the frequency or items to be BUSY indicator appears adjusted Transmission The microphone PTT key is used to start GROLIP key Used to select signaling encodeldecode data or t
58. nd E Europe Y AAFES Europe kAustralia M Other Areas Ref NO P I 0 E 4 5 4 6 S P M I C I C 1 4 I indicates safety critical components 43 Address i E 2 B IC 2 A 2t 1 C 1 C 1 D 2 C I C l 4 2 C MHW820 3 ICCPQWER M DULE FTNAL Y 4 1 IC PQWER MODULEJ DRIVE 7 0 3 X57 45YU l U TX RX UNIT A 2 6 2 7 0 3 9 40 X 5 7 4 5 9 U l I TX RX U N I T A 2 6 2 New Parts C I 2 C3 C4 10 C12 1 6 C17 C I Y C jO 2 C23 C L 4 C25 C26 C 2 7 C28 C2Y C3U C31 C 3 2 C33 C34 C35 C 3 7 C3 8 C 3 Y 24 1 C42 C43 4 4 C45 C46 C 4 7 C48 C4Y C5U C51 C52 C53 C54 5 5 C5h C57 C58 C59 6U C 6 1 Parts No B rPa N 8 7 2 6 0 8 4 6 N88 26U6 46 NYY U321 05 2 1 2 2 0 1 3 0 5 1 0 7 0 2 4 6 U 5 TY 1 0 3 6 2 1 5 Y41 TX RX Description I a B R BRAZlER HEAD TAP TTTE SCREW FLAT HEAD TAPTTIE SCIIEW PANNEL SCREW SE T ACSY INSULATING TUBE ANT CABLE SPEAKER 16 QHM 1W MICRQPHQNB ACSY MHWtr2U l IC PQWER M DULE FINAL CC73CCH lH lUUD CHIP C I UPF D CK73GBlH103K CHIP C U UIUF K CC73GCHlH221J CHIP C 22UPF J ELECTRQ l UUF lUWV UNIT X57 4590 XX CC73CCH1HI01 J CK73CBiH102K C C 7 3 C C H I H l U I J CC73CCHIHIOI J CEU4EW1E471M CK73GB l H471K CK73CBIHIU2K y 2 4 0 5 CY2 UU36 U5 CK73CB1H471 K CK73GB l H103K 2
59. oof ten rad o which is as close as practical to the antenna cable ter The trunk Ild IS preferred bond the trunk and entry pornt Secondly use your system s power supply vehicle chassis using ground straps to ensure the Ild 1s whlch supplles the voltage and current requ red for at chassis ground your system Make sure suff c ent air can flow around the rad o and power supply to allow adequate cool ng 4 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 radio s weight Al low 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 4 4 DC Power and wiring 1 Th s rad o may be nstalled In negatlve ground eec tr cal systems only Reverse polar ty will cause the f cable fuse to blow Check the veh cle ground polar I t y before nstallat on to prevent wasted time and 1 effort k 2 Connect the posltive power lead d rectly to the ve t i h cle battery pos tive term nal Connect ng the Posi t tive lead to any other posltlve voltage source In the I veh cle IS not recommended F If DC power is to be controlled by the vehicle ign tion 1 switch a switching relay should be used to switch the posltwe power lead The vehcle ignition switch then 1 controls DC to the relay co l I 1 3 Connect the ground le
60. rnal speaker connector INSTALLATION 5 Fitting the Control Panel Upside Down The TK 9401941 control panel can be fitted upside down so the transceiver can be niounted with t s internal speaker in llie upper haif of the case facing down in your car 1 Reniove the control panel and the TX RX unit B 2 control section Fig 12 Fig 12 2 Fo1 d the flat cable 0 differently Q 1 3 Turn the control section through 180 degrees 0 and rriount it on the transceiver 0 4 Insert the flat cable into control section connector CN201 0 5 Turn the pnel through 180 degrees and mount it on the transceiver Refit the two halves of the case to complete installation Fig 14 G Fig 14 CIRCUIT DESCRIPTION I 1 Overview 2 Circuit Configuration by Frequency This transceiver is an 800MHz band TK 9401 The receiver IS a double conversion superhet with a 9OOMHz band TK 941 EFJ LTRrM trunked system first intermediate frequency IF of 45 0375MHz TK compatible FM transceiver that can be programmed to 940 39 0375MHz TK 941 and a second IF of 455kHz operate on both LTR and conventional systems Incoming signals from the antenna are mixed with the local signal from the PLL to produce the first IF of 45 0375MHz TK 940 39 0375MHz TK 941 This is then mixed with the 44 5825MHz TK 940 38 5825MHz TK 941 second local osclllator output to produce the 455Hz second IF This is detected to
61. t when the P TT button 1s pressed used If transmission becomes possible while the PTr but no repeater is available and transmission is not pos button is held down transmission starts sible It is output until transmission is enabled while the P n button is held down and transmission starts or until the PTT button is released The mid tone and ow tone are output alternately in 150nis intervals Intercept tone This tone indicates that the transceiver is out of range It indicates that the P n button is pressed and transmission has started but the repeater cannot be tput If transmis connected and talk ng IS not possible It is output until f n button is held the PTT button is released The mid Tone and low tone are output alternately in 200nis intervals OPERATING FEATURES 3 22 Conventional System Operation Up to 250 MAX channels can be programmed for each system programmed as a conventional system Channels can be selected by the group key OT u i e t a l k DQT D gital Quiet Talk or carrier squelch can be set for transmit or receive channels If signaling is set for transmission a squelch tail elimina tor reverse burst or turn off code is transmitted Talk around The Talk around feature can be programmed for each channel Transmit disable receive only channels Transmission can be programmed to be inhibited for each channel This feature is used to set receive only h channels When
62. tion techniques The solder jumpers used to configure this product should be changed using equipment and techniques suitable for surface mount device repair Abuse due to the use of inappropriate tools and tech niques will VOID the warranty 0 3 m r m u m 3 7 3 3 3 3 3 3 7 7 7 7 7 7 1 I 1 MONIRESET gt 1 ON HOOK OFF HOOK I JU2 1 Shorted Open c rcu t 1 I supply Fig 5 JU3 Shorted Open Shorted Open Shorted 2 Accessory Connection Cable KCT 19 Option The KCT I9 is an accessory connection cable for connecting external equipment The connector has 15 pins and the necessary signal lines are selected for use JUJ E A A C C 2 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 0 from the chassis 2 Remove the pad 0 Table 1 Jumper setup charts MUTE URIMUTE Sinks to 1 supply A Fig 6 Sources supply Open circuit HCMOS HI 5Vdc HCMOS LO OVdc Open circuit Sources supply HCMOS LO OVdc HCMOS HI 5Vdc INSTALLATION 3 Insert the KCT 19 cable 0 into the chassis 0 The wire harness band 0 must be inside the chassis 4 Relocate the DC cord bushing in the chassis 0 5 Connect the KCT I9 t o the TX RX unit A121 as shown in Figure 7 i 0 1 6 Connect the KCT 19 to i le external accessory by inserting the cr
63. within two feet 0 6 grade communications equipment It contains all re quired service information for the equipment and is ransmit until all RF connectors are verified current as of the publication data Changes which may ectors are properly termi occur after publication are covered by either Service Bulletins or Manual Revisions These are issued as re DO NOT operate this equipment quired lasting caps or in an explosive at ORDERING REPLACEMENT PARTS properly grounded before When ordering replacement parts or equipment in formation the full part identification number should be erviced by a qualified technician only 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 suffi cient description of the required component for proper identification PRE INSTALLATION CONSIDERATIONS 1 UNPACKING Unpack the radio from its shipping container and check for accessory items If any item is missing please contact KENWOOD immediately 2 LICENSING REQUIREMENTS Federal regulations require a station license for each radio installation mobile or base be obtained by the equipment owner The licensee is responsible for en ring transmitter power frequency and deviation are hin the limits permitted by the station license ansmitter adjustments may be performed only by nsed technician holding an FCC first second or ss commerci

Kenwood TK-940 Car Satellite Radio System User Manual

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