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Kenwood 762G Marine Radio User Manual

1. 56 TX RX UNIT X57 5950 XX A 2 57 TX RX UNIT X57 5950 XX B 2 63 SCHEMATIC DIAGRAM 67 BLOCK DIAGRAM 75 LEVEL DIAGRAM 78 TERMINAL FUNCTION 80 SPECIFICATIONS 81 3 TK 760G 762G 1 3 7 6 13 15 5 INSTALLATION PLANNING CONTROL STATIONS 5 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 5 2 Radio 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 conn
2. 3 Transceiver Controls and Indicators 3 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 are stored in memory When the power is switched on again the transceiver returns to the previous conditions CHANNEL UP DOWN key Programmable key Programmable TK 760G only SCAN key Programmable TK 760G only MONITOR key Programmable A D A key Programmable TK 760G only A key Programmable TK 762G only 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 3 2 Programmable Keys The FPU KPG 56D enables programmable keys to se lect the following functions AUX Channel down Channel up Display character 1 Emergency Only foot key M type only Group down 1 Group up 1 Home channel Horn alert Key lock Monitor A Monitor B Monitor C Monitor D Operator selectable tone K type only Public address Redial Scan 1 Scan del add 1 Talk around Volume down Volume up and None These functions the FPU programs to the functionkeys and described in the following sections 1 TK 760G only AUX If this key is pressed AUX icon lights on the display and AUX p
3. D A First digit delay D A Rise time with QT D A Dial ID D A No of DTMF key D A DTMF hold time D A Store amp Send D A D key assignment D A DTMF signalling D A D A Inter mediate code Group code D A Auto reset time D A Call alert Transpond D A Panel test Panel tuning mode D A No Function Choices Display Remarks DTMF 32 Digit time 50 200ms 10ms DIGT__50 Default 50ms 33 Inter digit 50 1000ms 50ms IDT___50 Default 50ms time 34 First digit 50 200ms 10ms FDT___50 Default 50ms time 35 First digit 50 1000ms 50ms RIST_100 Default 100ms delay 36 Rise time 50 1000ms 50ms RTWQ_100 Default 100ms with QT 37 Dial ID Enable DID__ENA Disable DID__DIS Default 38 No of 12 key NODK_12_ Default DTMF key 16 key NODK_16_ 39 DTMF ON DHT__ON_ Default hold time OFF DHT__OFF 40 Store and Enable SAS__ENA send Disable SAS__DIS Default 41 D key D code DKA_D_CD Default assignment 1 16s 1s DKA_16__ 42 DTMF Code SQ DTMS_CSQ Default signalling SWL CALL DTMF_SEL TK 760G only 43 Inter 0 9 A D IMC__ __ Default Can be media
4. PTT ON Adjust Narrow 4 _MAX PTT ON Adjust 53 ADJUSTMENT Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item TK 760G 762G 8 MIC 1 Set test mode Power meter Rear ANT Check 3kHz 0 2kHz Wide seisitivity CH CH1 Sig1 Deviation panel 1 5kHz 0 05kHz Narrow check AG 1kHz 5mV meter PTT ON Oscilloscope Adjust AF VTVM Front MIC 9 QT deviation 1 Set test mode AG panel Front CH 0 75kHz 50Hz Wide Narrow Wide Select FQT in tuning mode panel _ FQT Deviation meter filter LPF 3kHz HPF OFF PTT ON Adjust 2 _ F Q T PTT ON Adjust 3 _ F Q T _ PTT ON Adjust Narrow 4 _FQT 0 35kHz PTT ON Adjust 10 DQT 1 Set test mode Front CH 0 75kHz 50Hz Wide Narrow deviation Select FDQT in tuning mode panel Wide F DQT Deviation meter filter LPF 3kHz HPF OFF PTT ON Adjust 2 F D Q T PTT ON Adjust 3 F D Q T _ PTT ON Adjust Narrow 4 FDQT 0 35kHz PTT ON Adjust 11 DTMF 1 Set test mode Front CH 3 0kHz 0 2kHz deviation Select DTMF in tuning mode panel Wide Deviation meter filter LPF 15kHz HPF OFF PTT ON Adjust Narrow 2 DTMF 1 5kHz 0 1kHz PTT ON Ad
5. Q10 Q31 X1 R186 C248 L33 D39 R189 R190 R192 L27 C259 R42 R35 RSSI R185 R196 PC Q36 R194 R55 R210 C264 R140 ANT G1 S G2 D J72 0677 02 A 2 G1 S G2 D RX ST HT E 8CL MD CV 1 3 4 5 1 2 3 4 IC400 8RC CK DT ST B C E B C E E 8T C B 9C 1 3 4 5 8TC IC9 1 8 9 16 ASQ IC1 1 3 4 5 5C O G I B E C 1 7 8 14 CN2 1 34 SFTDT UL PLST PLDT PLCK RSSI ASQ TO SPTST DAST CNTDT CNTCK W N CTO DTMFIO MO AFO SB SB PSW AUX3 AUX1 AUX4 AUX2 EMG TXS 8C MM MI ME ALT DEO MII MIO E C272 TX RX UNIT X57 5950 XX A 2 Foil side view 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M Component side Foil side Pattern 1 Pattern 2 Pattern 3 Pattern 4 PC BOARD VIEW TK 760G 762G Ref No Address IC1 11E IC2 9J IC8 9N IC9 9G IC10 8E IC14 9D IC15 7O IC400 2K Q1 11B Ref No Address Q3 12H Q4 12H Q5 11B Q6 11B Q7 11K Q10 13G Q13 13K Q14 10N Q15 13O Ref No Address Q16 13M Q17 9B Q18 13N Q19 7C Q20 8C Q21 7C Q22 7L Q23 7E Q24 8B Ref No Address Q25 6J Q26 8C Q27 9Q Q28 7I Q29 7G Q31 6H Q33 7N Q36 9K
6. R161 C167 C175 C136 C155 C62 C56 L4 L2 L3 C49 D10 D8 C146 C230 C231 C241 R182 R183 R184 C122 C173 C185 C194 C201 C218 C22 C51 C53 D18 D23 TV D28 D30 D31 IC2 Q10 Q31 X1 R186 C248 L33 D39 R189 R190 R192 L27 C259 R42 R35 R185 R196 PC Q36 R194 R55 R210 C264 R140 ANT G1 S G2 D G1 S G2 D RX ST HT E 8CL MD CV 1 3 4 5 1 2 3 4 IC400 8RC CK DT ST B C E B C E E 8T C B 9C 1 3 4 5 8TC IC9 1 8 9 16 ASQ IC1 1 3 4 5 5C O G I B E C 1 7 8 14 CN2 1 34 E MIO MII DEO ALT ME MI MM 8C EMG TXS AUX2 AUX4 AUX1 AUX3 PSW SB SB AFO MO DTMFIO CTO W N CNTCK CNTDT DAST SPTST TO ASQ RSSI PLCK PLDT PLST UL SFTDT C272 TK 760G 762G PC BOARD VIEW 61 TX RX UNIT X57 5950 XX A 2 Component side view Foil side 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M Component side Foil side Pattern 1 Pattern 2 Pattern 3 Pattern 4 Connect 1 and 4 Ref No Address IC1 11O IC2 9J IC3 10H IC4 12M IC5 12I IC6 10M IC7 9L IC8 9F IC9 9M
7. 2 A No function KEY1_OFF Default TK 760G TK 760G Volume down KEY1__1_ MON Volume up KEY1__2_ TK 762G Talk around KEY1__3_ Auxiliary KEY1__4_ Dispaly character KEY1__5_ TK 762G cannot be selected Home channel KEY1__7_ Channel down KEY1__8_ Channel up KEY1__9_ Key lock KEY1__10 Public address KEY1__12 REALIGNMENT 9 1 Flow Chart Self programming mode MON MON Channel setting mode Channel selection Group selection D A OFF QT OFF SCN SCN DQT N DQT I MON MON MON MON MON MON MON RX frequency D A RX signalling TX freuency TX signalling Option signalling ID Busy channel lockout OFF QT OFF Data clear DQT N DQT I D A D A D A D A D A MON Beat shift yes no D A MON RF power high low D A MON Wide Narrow D A MON Scan delete add D A MON Priority channel Not used when Scan priority is not fixed Not used when home channel is not set in key assignment Not used when wide is selected D A MON Home channel D A MON Compander yes no D A MON PTT ID D A MON Begin of TX ID D A MON End of TX ID D A D A Data cle
8. 705 Warranty card 13 DC cord E30 3339 05 19 Fuse 10A F51 0016 05 x 2 30 Polystyrene foamed fixture F H10 6618 12 31 Polystyrene foamed fixture R H10 6619 12 32 Inner packing case H12 1391 03 33 Protection bag H25 0720 04 33 Protection bag H25 0720 04 34 Item carton case H52 1519 02 36 Holder J19 1584 05 38 Bracket J29 0627 23 42 Screw set N99 0395 05 45 Microphone T91 0597 15 K K2 45 TK 760G 762G ADJUSTMENT Test Mode TK 760G Only I Test Mode Operating Features This transceiver has a test mode To enter test mode press SCN key and turn power on Hold SCN key un til 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 func tions are available in test mode Controls PTT Used when making a transmission MON Monitor on and off SCN Sets to the tuning mode A Function on D A RF power high and low Changes signalling Changes wide and narrow CH Changes channel Volume Volume up down LCD indicator SCN Unused AUX Lights at RF power low MON Lights at monitor on Right side dot Lights at narrow LED indicator Red LED Lights during transmission Green LED Lights when there is a carrier I Frequency and Signalling The set has been adjusted for the frequencies shown in the f
9. C509 R701 R503 R502 R504 1 34 E MIO MII DEO ALT ME MI MM 8C EMG TXS AUX2 AUX4 AUX1 AUX3 PSW SB SB AFO MO DTMFIO CTO W N CNTCK CNTDT DAST SPTST TO ASQ RSSI PLCK PLDT PLST UL SFTDT L504 C570 C629 C720 D505 D507 D526 TK 760G 762G PC BOARD VIEW 65 66 TX RX UNIT X57 5950 XX B 2 Component side view Foil side 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M Component side Foil side Pattern 1 Pattern 2 Pattern 3 Pattern 4 Connect 1 and 4 Ref No Address IC501 4P IC502 4Q IC503 4L IC505 3O IC507 3H IC508 4G IC509 3J Ref No Address IC510 3M IC511 5E IC512 4L IC513 4J IC514 4J Q501 5S Q502 4I Ref No Address Q503 3J Q504 3C Q505 3B Q506 3B Q508 4C Q509 4B D501 4O Ref No Address D502 4O D503 5O D504 4O D505 4O D506 5L D507 4O D508 5G Ref No Address D509 5N D510 5R D511 2R D512 2E D513 5E D514 5I D521 3C Ref No Address D523 4B D524 5B D525 5C D526 5D D527 4B D528 6D D529 3I 2SB1565 DTC114EE 2SA1745 2SA1832 2SC2412K 2SC4215 2SC4226 2SB1132 2SC2954 2SC3357 2SA1641 2SC4081 DTC363EU DTA114EKA DTC114EKA DTC114EUA DTC144EKA DTD114EK KRA225S 2SC4649 LA4422 NJM2904M NJM455
10. I Squelch Circuit The detection output from the FM IF IC IC5 passes through a band pass filter and a noise amplifier Q10 in the control unit to detect noise A voltage is applied to the CPU IC502 The CPU controls squelch according to the voltage ASQ level The signal from the RSSI pin of IC5 is moni tored The electric field strength of the receive signal can be known before the ASQ voltage is input to the CPU and the scan stop speed is improved FIg 4 AF signal system Fig 5 Squelch circuit CIRCUIT DESCRIPTION Fig 3 Wide Narrow changeover circuit CF1 Narrow CF2 Wide IFI MXO IC5 IF system AFO DET OUT C70 C72 C53 R19 R23 R46 R32 R30 R39 R38 Q35 8RC Q37 R59 W N IC510 4pin Wide L Narrow H C51 D8 D10 Q3 5C Q4 Wide H Narrow L AUDIO PROCE SUM AMP D A CONV IC508 IC507 IC6 AF PA IC13 SP DTMF AFO DEO CONTORL UNIT Q10 NOISE AMP D11 IC4 IC5 IC502 AF RSSI BPF DET CPU IF SYSTEM CONTROL UNIT ASQ RSSI PLL Frequency Synthesizer The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission I PLL The frequency step of the PLL circuit is 5 or 6 25kHz A 16 8MHz reference oscillator signal is divided at IC3 by a fixed counter to produce the 5 or 6 25kHz reference fre quency The voltage controlled oscillator VCO output sig nal is
11. IC10 8O IC11 10J Ref No Address IC12 6O IC13 8R IC14 9P IC15 7E IC400 2I Q1 11R Q2 12R Q3 12L Q4 12L Q5 11R Q6 11R Ref No Address Q7 11I Q8 7G Q9 10F Q10 13M Q11 11G Q12 11G Q13 13I Q14 10F Q15 13E Q16 13G Q17 9R Ref No Address Q18 13F Q19 7Q Q20 8Q Q21 7Q Q22 7H Q23 7O Q24 8R Q25 6J Q26 8Q Q27 9C Q28 7K Ref No Address Q29 7M Q31 6L Q32 4O Q33 7F Q35 12L Q36 9I Q37 11L Q38 12R Q39 9N D1 13P D2 12R Ref No Address D3 13Q D4 13Q D5 13P D8 12J D9 9G D10 12K D11 12M D12 11H D13 11H D14 10L D15 10R Ref No Address D16 11F D17 7H D18 12C D19 8R D20 8P D21 7Q D22 7J D23 10C D24 8P D25 6L D27 8P Ref No Address D28 10C D29 5P D30 8C D31 8C D33 6C D34 5E D35 7C D36 6B D39 8H D40 11M S R Q P O N M L K J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 F RESET SPD X501 IC502 1 25 26 50 51 75 76 100 IC505 1 8 4 5 R508 R501 IC508 1 22 23 33 34 44 11 12 R583 Q504 Q508 IC509 1 7 8 14 C578 C584 D527 D524 D525 CP536 CP531 CP534 C559 C560 R575 CP538 CP530 R600 R599 D504 D501 D502 R595 R593 C590 C620 C615 C
12. Q802 Q803 Q805 R810 R809 C801 C806 C808 C812 R812 R804 C804 R802 C803 C802 R801 R808 C807 C805 R806 D802 R807 L801 Q804 Q806 Q807 G SD G S D G S D G SD Q808 Q809 R813 R814 R815 R816 D801 D804 D803 J72 0684 02 CN801 1 MBL 5C CE CL E E SB DI 2 7 8 IC801 1 12 13 24 36 37 48 25 R803 R805 Q801 Q802 Q803 Q805 R810 R809 C801 C806 C808 C812 R812 R804 C804 R802 C803 C802 R801 R808 C807 C805 R806 D802 R807 L801 Q804 Q806 Q807 G SD G SD G S D G S D Q808 Q809 R813 R814 R815 R816 CN101 RX ST 6 1 HT E 8CL MD CV J72 0676 02 C107 C114 C121 C118 C111 C123 C117 D105 R116 C110 R101 R102 TC106 L101 TC109 R117 R106 R104 R105 C113 C124 R112 R113 L102 C112 D101 D102 D103 D104 L108 L107 Q101 G S D G S D Q103 L105 L103 L104 C102 C126 C120 C119 R110 C125 R107 C115 C104 C105 R103 R108 C116 L110 L109 C122 R115 R109 R114 R111 Q102 Q104 Q105 Q106 L106 C127 L111 L112 L116 CN101 RX ST HT E 8CL MD CV 1 6 J72 0676 02 L103 L104 C102 C126 C120 C119 R110 C1
13. 2SB1565 E F TRANSISTOR Q33 DTC114EKA DIGITAL TRANSISTOR Q35 DTC144EKA DIGITAL TRANSISTOR Q36 2SC2412K TRANSISTOR Q37 39 2SK1824 FET Q501 2SC4619 TRANSISTOR Q502 503 DTC114EE DIGITAL TRANSISTOR Q504 2SC4617 S TRANSISTOR Q505 2SB1132 Q R TRANSISTOR Q506 DTC114EE DIGITAL TRANSISTOR Q508 2SC4617 S TRANSISTOR Q509 DTC363EU DIGITAL TRANSISTOR TH1 157 153 65001 THERMISTOR 212 2013 05 INSULATING TUBE C102 CK73GB1H471K CHIP C 470PF K C104 CC73GCH1H150J CHIP C 15PF J K2 C104 105 CC73GCH1H150J CHIP C 15PF J K M C105 CC73GCH1H270J CHIP C 27PF J K2 C107 CC73GCH1H060D CHIP C 6 0PF D K2 TX RX UNIT X57 5950 XX PLL VCO X58 4670 XX PLL VCO X58 4670 XX 10 K M 11 K2 TK 760G 762G PARTS LIST 41 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation PLL VCO X58 4670 XX C107 CC73GCH1H080D CHIP C 8 0PF D K M C110 CC73GCH1H040B CHIP C 4 0PF B K M C110 CC73GCH1H120J CHIP C 12PF J K2 C111 CC73GCH1H040B CHIP C 4 0PF B K2 C111 CC73GCH1H050B CHIP C 5 0PF B K M C112 113 CC73GCH1H020B CHIP C 2 0PF B C114 CC73GCH1H070D CHIP C 7 0PF D K2 C114 115 CC73GCH1H060D CHIP C 6 0PF D K M C115 CC73GCH1H050B CHIP C 5 0PF B K2 C116 CC73GCH1H120J CHIP C 12PF J C117 CK73GB1H471K CHIP C 470PF K C118 CC73GCH1H050B CHIP C 5 0PF B C119 120 CK73GB1H47
14. 5V 15 NC I Pull up 16 MICDAT I O MIC data input output 17 AUX3 I O Option board port 3 SmarTrunk Clock output 18 NC NC 19 OE I Output enable control sift register 20 NC NC 21 EEPDAT I O EEPROM data input output 22 TO O QT DQT modulation output 23 AUX1 I Option board port 1 SmarTrunk Req Ack input 24 SFTSTB1 O Shift register strobe output 25 DACSTB O D A converter enable output 26 PTT I PTT PTT on L 27 NC NC 28 NC NC 29 AUX4 O Option board port 4 SmarTrunk Data output 30 AUX2 I O Option board port 2 SmartTrunk Data input 31 PA O MIC audio line sw control PA H 32 KOUT2 O Key scan output 2 33 TXD O Serial data PTT on L 34 HOOK I HOOK RXD On hook L 35 KOUT1 O Key scan output 1 36 KOUT0 O Key scan output 0 Pin No Name I O Function 37 RDY I Pull up 38 NC NC 39 HOLD I Not used 40 41 NC NC 42 RD O READ signal 43 NC NC 44 WR O WRITE signal 45 LCDCS O LCD chip enable output 46 CNTDAT O Common data output LCD SHIFT REG VOL Audio processor 47 CNTCLK O Common clock output EEPROM LCD SHIFT REG VOL Audio processor 48 CSO Chip select signal 49 A19 Not used 50 59 A18 A9 Flash memory address bus 60 ACC 5V 61 A8 Flash memory addres
15. 8 Component side Foil side Pattern 1 Pattern 2 Pattern 3 Pattern 4 PC BOARD VIEWS TK 760G 762G Ref No Address D506 4L D509 5M D510 5R Ref No Address IC501 3O IC503 4L IC507 3G Ref No Address IC510 2L IC513 3I IC514 4I Ref No Address D511 2R D512 2E D513 5E Ref No Address D514 5I D521 2C D529 3I TX RX UNIT X57 5950 XX B 2 Component side view 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M TX RX UNIT X57 5950 XX B 2 Foil side view 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M 64 Component side Foil side Pattern 1 Pattern 2 Pattern 3 Pattern 4 63 Ref No Address IC502 10P IC505 11N IC508 10F Ref No Address IC509 11I IC511 9D IC512 10L Ref No Address Q501 9R Q502 10H Q503 11I Ref No Address Q504 11C Q505 11B Q506 11A Ref No Address Q508 11C Q509 10B D501 11N Ref No Address D502 10N D503 10N D504 11N Ref No Address D505 11N D507 10N D508 9G Ref No Address D523 10A D524 9A D525 9C Ref No Address D526 9C D527 10A D528 8C A B C D E F G H I J K L M N O P Q R S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R529 R538 C521 R555 R592 R519 C508 R514 R572 D521 R60
16. D1 13D Ref No Address D2 12B D3 13C D4 13C D5 13D D8 12J D10 12I D11 12G D14 10H D15 10B Ref No Address D16 11N D17 7L D18 12Q D19 8B D20 8D D21 7C D22 7J D23 10Q D24 8D Ref No Address D27 8D D28 10Q D29 5D D30 8Q D31 8Q D35 7Q D36 6R D39 8L 60 A B C D E F G H I J K L M N O P Q R S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C91 C67 D12 D13 R93 C104 Q32 L24 L20 L25 IC5 IC6 IC3 C10 C7 C3 C60 C107 C75 Q9 C54 XF1 CN4 CN5 C50 C131 C117 C161 C160 R68 C74 C46 C43 R44 IC4 R78 IC7 C103 C98 C81 R71 Q12 C89 C93 C99 C1 C5 C8 C11 C2 C6 C9 C12 C141 C144 C134 IC12 C39 C32 C203 C207 C210 C212 L18 C213 L15 C138 D33 C211 L13 L11 C86 C64 CF2 CF1 R87 C96 C97 C16 C17 C18 C19 C21 C15 C14 C13 R9 R10 R11 R59 C72 Q2 R91 R37 R34 R56 R86 D9 C40 R53 R52 R51 C84 IC11 R8 R7 R2 R66 R49 R40 TH1 R5 R6 R177 R62 R57 C61 R1 R3 R4 C45 C70 R50 R75 C165 R131 C79 C80 R67 R63 R48 R89 R77 R90 R64 R70 Q11 R65 R79 R82 R85 R27 L21 C198
17. DAST Strobe signal for IC6 Shift register 11 CNTDT Control serial data for IC6 12 CNTCK Control clock pulse for IC6 13 W N Change signal of wide or narrow 14 CTO Received sub tone signal 15 DTMFIO DTMF signal 16 MO Modulation signal 17 AFO Receiver audio signal 18 SB Switched B 19 SB Switched B 20 PSW Power switch 21 AUX3 Optional unit control signal 22 AUX1 Optional unit control signal 23 AUX4 Optional unit control singal 24 AUX2 Optional unit control signal 25 EMG TXS Foot switch input signal 26 8C DC 8V 27 MM MIC mute 28 MI External MIC input signal 29 ME MIC ground 30 ALT Alert tone signal 31 DEO Receiver detector output 32 MII Transmit audio signal input 33 MIO Transmit audio signal output 34 GND Grond CN3 TX RX Unit Pin No Name Function 1 HOR Horn alert call output 2 E Ground 3 SB Switched B DC 13 6V output Maximum 1A CN4 TX RX Unit Pin No Name Function 1 DEO Receiver detector output Level 0 5Vrms Atandard modulation 2 DTC Data channel control External hook input 3 IGN Ignition sense input 4 DI Data modulation input 5 ME External microphone ground 6 MI EXternal microphone input 7 PTT External PTT input active low 8 SQ Squelch detect output CN5 TX RX Unit Pin No Name Function 1 AM Speaker mute input active high 2 M
18. If you press the MON switch while PROG 576 is dis played the checksum is displayed If you press the MON switch again while the checksum is displayed PROG 576 is redisplayed 2 If you press the A switch while PROG 576 is displayed the display changes to PROG 192 to indicate that the write speed is low speed 19200 bps If you press the A switch again while PROG 192 is displayed the dis play changes to PROG 384 and the write speed be comes the middle speed 38400 bps If you press the A switch again while PROG 384 is displayed the dis play returns to PROG 576 Note TK 762G indicate 19200 bps The LED flashes green and red alternately 38400 bps The LED flashes orange 57600 bps The LED lights orange Normally write in the high speed mode 7 Clone Mode Programming data can be transferred from one radio to another by connecting them via their modular microphone jacks The operation is as follows the transmit radio is the master and the receive radio is the slave 1 Turn the master TK 760G power ON with the key held down The TK 760G displays CLONE 2 Power on the slave TK 760G 762G 3 Connect the cloning cable No E30 3382 05 to the modular microphone jacks on the master and slave 4 Press the SCN key on the master while the master dis plays CLONE The data of the master is sent to the slave While the slave is receiving the data PC is dis played When cloning o
19. Pattern 4 TK 760G 762G PC BOARD VIEW TX RX UNIT X57 5950 XX A 2 Component side view 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M Ref No Address IC3 10H IC4 12M IC5 12I IC6 10M IC7 9L IC11 10J IC12 6O Ref No Address IC13 8R IC400 2I Q2 12R Q8 7G Q9 10F Q11 11G Q12 11G Ref No Address Q32 4O Q35 12L Q37 11L Q38 12R Q39 9N D9 9G D12 11H Ref No Address D13 11H D25 6L D33 6C D34 5E D40 11M 57 S R Q P O N M L K J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R155 R160 DB 8C SB D22 C92 C94 C95 R69 L17 IC14 R123 R95 C200 C156 R133 Q23 C221 C205 C148 C222 C274 R170 D29 C179 D2 Q1 D24 C4 R29 R151 C142 C174 R108 R113 C139 C168 R137 C151 R121 C147 C170 D17 C162 C159 R101 R98 C112 C115 C118 C120 R106 R92 UL C125 R148 R146 R150 Q4 D3 D4 D5 R13 Q6 D14 Q17 C106 Q13 C88 D11 R43 C37 C66 R61 C69 D1 R22 C121 C119 C190 C157 C180 R115 Q29 R178 C123 R107 R136 Q24 C186 Q19 SP C128 C116 C113 IC10 Q21 R175 C204 C196 C217 C223 R169 IC15 D36 D35 C224 C
20. VOL No function VUP__OFF Volume Volume down VUP___1_ up Volume up VUP___2_ Default Talk around VUP___3_ Auxiliary VUP___4_ Dispaly character VUP___5_ TK 762G cannot be selected Home channel VUP___7_ Channel down VUP___8_ Channel up VUP___9_ REALIGNMENT No Function Choices Display Remarks Public address SCN___12 Horn alert SCN___14 Selectable QT SCN___15 M destination only 2 tone encode SCN___16 select Monitor A SCN___17 Monitor B SCN___18 Monitor C SCN___19 Monitor D SCN___20 Scan SCN___22 Scan del add SCN___23 Group down SCN___24 Group up SCN___25 7 FOOT No function FSW__OFF Default FOOT Volume down FSW___1_ SW Volume up FSW___2_ Talk around FSW___3_ Auxiliary FSW___4_ Dispaly character FSW___5_ Emergency FSW___6_ Home channel FSW___7_ Channel down FSW___8_ Channel up FSW___9_ Key lock FSW___10 Public address FSW___12 Horn alert FSW___14 Selectable QT FSW___15 M destination only 2 tone encode FSW___16 select Monitor A FSW___17 Monitor B FSW___18 Monitor C FSW___19 Monitor D FSW___20 Scan FSW___22 Scan del add FSW___23 Group down FSW___24 Group up FSW___25 8 CH No function CUP__OFF Channel Volume down CUP___1_ up Volume up CUP___2_ Talk around CUP___3_ Auxiliary CUP___4_ Dispaly character CUP___5_ TK 762G cannot be selected Home channel CUP
21. 27 J 1 10W D801 MA2S111 DIODE D808 HSB123 DIODE IC801 LC75823W IC MOS IC Q801 2SB1132 Q R TRANSISTOR D801 B30 2204 05 LED RED YELLOW D803 B30 2220 05 LED 2P YELLOW D804 B30 2204 05 LED RED YELLOW C801 CK73GB1H471K CHIP C 470PF K C802 804 CC73GCH1H101J CHIP C 100PF J C805 CK73GF1A105Z CHIP C 1 0UF Z C806 CK73GB1H471K CHIP C 470PF K C807 CK73GB1H102K CHIP C 1000PF K C808 CK73GB1H471K CHIP C 470PF K C812 CK73GB1H471K CHIP C 470PF K CN801 E40 6020 05 PIN ASSY L801 L92 0138 05 FERRITE CHIP R801 802 RK73GB1J103J CHIP R 10K J 1 16W R803 RK73FB2A123J CHIP R 12K J 1 10W R804 RK73GB1J103J CHIP R 10K J 1 16W R805 RK73FB2A332J CHIP R 3 3K J 1 10W R806 RK73GB1J474J CHIP R 470K J 1 16W R807 R92 1252 05 CHIP R 0 OHM R808 RK73GB1J393J CHIP R 39K J 1 16W R809 RK73FB2A123J CHIP R 12K J 1 10W R810 RK73FB2A332J CHIP R 3 3K J 1 10W R812 RK73FB2A561J CHIP R 560 J 1 10W R813 816 RK73GB1J473J CHIP R 47K J 1 16W D802 MA2S111 DIODE IC801 LC75833W IC LCD DRIVER Q801 803 DTA114EKA DIGITAL TRANSISTOR Q804 KRA225S TRANSISTOR Q805 DTA114EKA DIGITAL TRANSISTOR Q806 809 2SK1824 FET DISPLAY UNIT X54 3270 10 TK 760G DISPLAY UNIT X54 3280 10 TK 762G TK 760G 762G PARTS LIST 35 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nat
22. 75 CK73GB1H102K CHIP C 1000PF K C77 C90 2046 05 ELECTRO 22UF 10WV C78 CK73GB1H102K CHIP C 1000PF K C79 80 CK73GB1H221K CHIP C 220PF K C81 CK73GB1H102K CHIP C 1000PF K C82 C92 0507 05 CHIP TAN 4 7UF 6 3WV C83 CC73GCH1H270J CHIP C 27PF J C84 C92 0507 05 CHIP TAN 4 7UF 6 3WV C86 C92 0662 05 CHIP TAN 15UF 6 3WV C87 CC73GCH1H330J CHIP C 33PF J C88 CK73GB1H103K CHIP C 0 010UF K C91 CC73GCH1H050C CHIP C 5 0PF C C92 CK73GB1H102K CHIP C 1000PF K C93 C92 0555 05 CHIP TAN 0 047UF 35WV C94 CK73GB1H102K CHIP C 1000PF K C95 CC73GCH1H020B CHIP C 2 0PF B C96 CK73GB1H102K CHIP C 1000PF K C97 C92 0546 05 CHIP TAN 68UF 6 3WV C98 CK73GB1H103K CHIP C 0 010UF K C99 C92 0004 05 CHIP TAN 1 0UF 16WV C100 CK73GB1H102K CHIP C 1000PF K C101 CC73GCH1H040C CHIP C 4 0PF C C102 103 CK73GB1H102K CHIP C 1000PF K C104 C92 0002 05 CHIP TAN 0 22UF 35WV C105 CK73GB1H102K CHIP C 1000PF K C106 CC73GCH1H180J CHIP C 18PF J C107 CK73GB1H102K CHIP C 1000PF K C110 CC73GCH1H180J CHIP C 18PF J C111 CC73GCH1H040C CHIP C 4 0PF C C112 CK73GB1H102K CHIP C 1000PF K C113 C92 0507 05 CHIP TAN 4 7UF 6 3WV C114 C92 0697 05 CHIP TAN 3 3UF 16WV C115 CK73GB1H102K CHIP C 1000PF K C116 CK73GB1H103K CHIP C 0 010UF K C117 CK73GB1H102K CHIP C 1000PF K C118 CC73GCH1H100D CHIP C 10PF D C119 CK73GB1H103K CHIP C 0 010UF K C120 CC73GCH1H220J CHI
23. C544 C561 R611 R522 C509 R701 R503 R502 R504 1 34 L504 C570 C629 C720 D505 D507 D526 E MIO MII DEO ALT ME MI MM 8C EMG TXS AUX2 AUX4 AUX1 AUX3 PSW SB SB AFO MO DTMFIO CTO W N CNTCK CNTDT DAST SPTST TO ASQ RSSI PLCK PLDT PLST UL SFTDT R529 R538 C521 R555 R592 R519 C508 R514 R572 D521 R602 C603 C609 C605 C601 C599 C613 C503 IC503 G I O C507 R526 R536 C524 R556 C526 C626 C628 R616 R539 C580 R531 C523 C538 R534 R518 R510 R532 R537 C520 R551 C532 R540 R541 C630 C631 D529 R622 IC501 1 16 17 32 IC510 1 CNT CK 8 9 16 C501 R505 IC507 1 4 5 8 C543 R560 R562 C541 R563 R564 R561 C542 C537 D514 A TK 760G MON TK 762G D A TK 760G TK 762G TK 760G TK 762G TK 760G A TK 762G SCN TK 760G CH DN CH UP C517 E MBL 5C LCD CS SB CNT DT E D511 C505 R544 C528 C531 C527 R566 R559 R567 J501 MBL GND ME HOOK RXD CM MIC PTT TXD PSB D513 MON TK 760G J72 0677 02 B 2 D512 PSW VOL UP VOL DN D509 R533 D510 R542 R512 D506 R535 C525 R545 R543 R547 C529 R552 R520 R521 L501 R517 R618 R619 IC513 IC514 1 4 5 8 1 4 5
24. I Force the display to turn off regardless of internal data Serial data can be input regardless of whether it is H or L 46 CE I Chip enable Serial data transfer terminal Connected to the microprocessor 47 CL I Synchronizing clock Serial data transfer terminal Connected to the microprocessor 48 DI I Transfer data Serial data transfer terminal Connected to the microprocessor 31 TK 760G 762G DESCRIPTION OF COMPONENTS Display Unit X54 3270 10 TK 760G Ref No Use Function Operation Condition D801 Reverse current prevention D802 805 Light emission D808 Current stability IC801 LCD driver Q801 DC switch LED Display Unit X54 3280 10 TK 762G Ref No Use Function Operation Condition D801 Light emission D802 Reverse current prevention D803 804 Light emission IC801 LCD driver Q801 809 DC switch LED TX RX Unit X57 5950 XX 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M Ref No Use Function Operation Condition D1 Surge absorption D2 Voltage reference D3 5 Surge absorption D8 IF switch Wide narrow D9 DC switch D10 IF switch Wide narrow D11 Noise amp detect D14 Surge absorption D15 OR gate SP mute AM D16 RF switch TX RX Heterodyne D17 Temperature Drive compensation D18 RF BPF tuning D19 Surge absorption D20 Reverse current prevention D21 Voltage r
25. J 1 16W R545 RK73GB1J472J CHIP R 4 7K J 1 16W R546 RN73GH1J913D CHIP R 91K D 1 16W R547 RK73GB1J103J CHIP R 10K J 1 16W R548 RN73GH1J333D CHIP R 33K D 1 16W R549 RN73GH1J913D CHIP R 91K D 1 16W R550 RN73GH1J683D CHIP R 68K D 1 16W R551 552 RK73GB1J223J CHIP R 22K J 1 16W R553 RK73GB1J105J CHIP R 1 0M J 1 16W R554 RN73GH1J913D CHIP R 91K D 1 16W R555 556 RK73GB1J104J CHIP R 100K J 1 16W R557 RN73GH1J274D CHIP R 270K D 1 16W R558 R92 1252 05 CHIP R 0 OHM R559 RK73GB1J333J CHIP R 33K J 1 16W R560 RK73GB1J474J CHIP R 470K J 1 16W R561 RK73GB1J273J CHIP R 27K J 1 16W R562 R92 1252 05 CHIP R 0 OHM R563 RK73GB1J473J CHIP R 47K J 1 16W R564 RK73GB1J223J CHIP R 22K J 1 16W R565 R92 1252 05 CHIP R 0 OHM R566 RK73GB1J563J CHIP R 56K J 1 16W R567 RK73GB1J334J CHIP R 330K J 1 16W R568 RK73GB1J473J CHIP R 47K J 1 16W R569 RK73GB1J102J CHIP R 1 0K J 1 16W R570 RK73GB1J155J CHIP R 1 5M J 1 16W R571 RN73GH1J682D CHIP R 6 8K D 1 16W R572 RK73GB1J473J CHIP R 47K J 1 16W R573 RK73GB1J474J CHIP R 470K J 1 16W R574 RN73GH1J683D CHIP R 68K D 1 16W R575 RK73GB1J101J CHIP R 100 J 1 16W R576 RK73GB1J224J CHIP R 220K J 1 16W R577 RK73GB1J103J CHIP R 10K J 1 16W R578 RN73GH1J682D CHIP R 6 8K D 1 16W R579 RK73GB1J223J CHIP R 22K J 1 16W R580 R92 1252 05 CHIP R 0 OHM R581 RK73GB1J394J CHIP R 3
26. J 1 16W R3 R92 1252 05 CHIP R 0 OHM R4 RK73GB1J333J CHIP R 33K J 1 16W R5 6 R92 1252 05 CHIP R 0 OHM R7 8 RK73GB1J102J CHIP R 1 0K J 1 16W R9 10 R92 1252 05 CHIP R 0 OHM R11 RK73GB1J102J CHIP R 1 0K J 1 16W R12 RK73GB1J104J CHIP R 100K J 1 16W R13 RK73GB1J473J CHIP R 47K J 1 16W R14 RK73GB1J474J CHIP R 470K J 1 16W R15 RK73GB1J104J CHIP R 100K J 1 16W R16 RK73GB1J220J CHIP R 22 J 1 16W R17 RK73GB1J154J CHIP R 150K J 1 16W R18 RK73GB1J104J CHIP R 100K J 1 16W R19 RK73GB1J392J CHIP R 3 9K J 1 16W R20 RK73GB1J224J CHIP R 220K J 1 16W R21 RK73GB1J102J CHIP R 1 0K J 1 16W R22 RK73GB1J474J CHIP R 470K J 1 16W R23 RK73GB1J223J CHIP R 22K J 1 16W R24 RK73GB1J183J CHIP R 18K J 1 16W R25 26 R92 1252 05 CHIP R 0 OHM R29 R92 1252 05 CHIP R 0 OHM R30 RK73GB1J103J CHIP R 10K J 1 16W R31 RK73GB1J152J CHIP R 1 5K J 1 16W R32 RK73GB1J103J CHIP R 10K J 1 16W R33 R92 1252 05 CHIP R 0 OHM R34 RK73GB1J104J CHIP R 100K J 1 16W R35 RK73GB1J224J CHIP R 220K J 1 16W TX RX UNIT X57 5950 XX TK 760G 762G PARTS LIST 38 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation R36 RK73GB1J223J CHIP R 22K J 1 16W R37 RK73GB1J220J CHIP R 22 J 1 16W R38 40 RK73GB1J103J CHIP R 10K J 1 16W R41 RK73GB1J224J CHIP R 220K J 1 16W
27. OW PTT ON Adjust Transmitter Section ADJUSTMENT Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item 52 TK 760G 762G 3 L P O W Power meter Rear ANT Front CH 5 0W 0 5W PTT ON panel panel Adjust 4 L P O W PTT ON Adjust 5 L P O W _ PTT ON Adjust 5 Power check 1 Set test mode Power meter Rear ANT Check 25W 1W 8A or less CH CH1 Sig1 panel CH2 Sig1 Ammeter DC IN CH3 Sig1 PTT ON 6 Modulation 1 Set test mode Power meter Rear ANT Front CH Make the de Wide Narrow balanced MIC input OFF Deviation panel panel modulation Wide Select BAL in tuning mode meter waveform neat _ BAL Oscilloscope Deviation meter filter LPF 3kHz HPF OFF AF VTVM Front MIC De emphasis OFF AG panel PTT ON Adjust 2 _ B A L PTT ON Adjust 3 _ B A L _ PTT ON Adjust Narrow 4 _BAL PTT ON Adjust 7 Maximum 1 Set test mode 3 95kHz Wide 50Hz Wide Narrow deviation Connect AG to the MIC 1 95kHz Narrow Wide terminal According to the Select MAX in tuning mode larger _ MAX AG 1kHz 50mV Deviation meter filter LPF 15kHz HPF OFF De emphasis OFF PTT ON Adjust 2 _ M A X PTT ON Adjust 3 _ M A X _
28. Q21 DC switch Active while PS voltage is more than 20V Q22 RF amplifier Predrive Q23 DC switch SB switch active when powering up Q24 AF mute Active while power switch is off Q25 RF amplifier Drive Q26 Inverter Active while power switch is low Q27 L N A Q28 DC switch 8T active while TX Q29 DC switch 8T cont active while TX Q31 APC controller Q32 APC controller DB Q33 APC controller Power protection Q35 W N switch Active on narrow Q36 DC switch Power protection Q37 AF mute switch Inactive on mute Q38 DC switch 5S Q39 DC switch Output enable Q501 Clock switch shift Clock shift is on while BSHIFT is H Q502 AF mute Active while MUTE is H Q503 Inverter Active while PA2 is H active while public address Q504 LED switch Red Active while LED0 is H active while TX Q505 506 Key backlight switch Active while MBL is H Q508 LED switch Green Active while LED1 is H active while RX Q509 MIC mute Active while MM is H and MM2 is H PLL VCO X58 4670 XX 10 K M 11 K2 Ref No Use Function Operation Condition D101 RX VCO D102 TX VCO D103 RX VCO D104 TX VCO D105 Modulation Q101 Oscillator RX Q102 Inverter Active while ST is H Q103 Oscillator TX Q104 TX RX switch TX Active while ST is H Q105 TX RX switch RX Active while Q102 is off Q106 Buffer amplifier 33 TK 760G 762G 2nd Word G
29. R11 R59 C72 Q2 R91 R37 R34 R56 R86 D9 C40 R53 R52 R51 C84 IC11 R8 R7 R2 R66 R49 R40 TH1 R5 R6 R177 R62 R57 C61 R1 R3 R4 C45 C70 R50 R75 C165 R131 C79 C80 R67 R63 R48 R89 R77 R90 R64 R70 Q11 R65 R79 R82 R85 R27 L21 C198 C214 D34 L22 C171 C208 R76 C83 IC13 C166 C172 C114 C195 C30 C35 C47 C63 L23 Q8 R188 Q37 R193 D40 L26 R202 R201 Q38 R197 L5 C261 C260 R195 Q39 C77 D25 R19 Q35 R208 TV 8R CV J72 0677 02 A 2 A1 X58 4670 XX 8CL 1 10 11 20 1 8 9 16 G O I 1 4 5 8 1 12 13 24 G DS 5C G SD 1 4 5 8 SB GND DEO DTC IGN DI ME MI PTT SQ 1 8 RSSI GND E C B O G I GND B J1 EXT SP CN7 1 3 PA LI SPI SPO CN8 2 1 E 10 SP CN3 SB E HOR 3 1 1 1 3 AM MM EMG TXS G DS CN1 15 1 GND MIO MII AFI AFO ALT AUX2 AUX4 AUX1 AUX3 NC AUX6 AUX5 5S 8C 1 2 3 4 IC400 RX ST HT E 8CL MD CV Component side Foil side Pattern 1 Pattern 2 Pattern 3
30. ance between the MO and TO levels Part of a TO signal is summed with MO 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 I D A Converter The D A converter IC6 is used to adjust TONE and MO modulation AF volume TV voltage FC reference voltage 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 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 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 IC14 This IC outputs a control signal when the PSW goes low When the power turns on pin 1 of IC14 outputs a low signal and Q20 turns on The base of Q19 goes high Q19 turns on SB SW Q23 turns on and power SB is supplied to the set This circuit has an overvoltage protection circuit If a DC voltage of 20 V or higher is applied to the power cable D21 turns on and a voltage is applied to the base of Q21 This voltage turns Q21 on and turns Q19 and SBSW off I Decode QT DQT DTMF The signal DEO detected by the TX RX unit passes through two low pass filters of IC513 goes to TOI of the CPU IC502 to decode QT DQT The DTMF
31. buffer amplified by Q106 Sub unit then divided in IC3 by a dual module programmable counter The divided signal is compared in phase with the 5 or 6 25kHz reference signal in the phase comparator in IC3 The output signal from the phase comparator is filtered through a low pass filter and passed to the VCO to control the oscillator frequency See Fig 6 I VCO The TK 760G 762G has VCO in a Sub unit A1 housed in a solid shielded case and connected to the TX RX unit through CN101 The operating frequency is generated by Q103 in trans mit mode and Q101 in receive mode The oscillator fre quency is controlled by applying the VCO control voltage obtained from the phase comparator to the varactor diodes D102 and D104 in transmit mode and D101 and D103 in receive mode The RX ST pin is set low in receive mode causing Q102 to turn Q103 off and turn Q101 on The RX ST pin is set low in transmit mode The outputs from Q101 and Q103 are amplified by Q106 and sent to the buffer am plifiers 26 TK 760G 762G D102 104 Q103 TX VCO Q106 BUFF AMP D101 103 Q101 RX VCO Q102 104 105 T R SW Charge pump LPF Phase comparator 1 M 1 N PLL VCO 5kHz 6 25kHz 5kHz 6 25kHz REF OSC 16 8MHz PLL DATA IC3 PLL IC Q9 RF AMP Fig 6 PLL circuit I Unlock Circuit During reception the 8RC signal goes high the 8TC sig nal goes low and Q16 turns on Q18 turns on and a voltage is applied to the c
32. signal is de coded by a dedicated IC IC511 and the resulting signal is sent to the CPU IC502 as serial data 2 tone The detected signal passes through audio processor IC508 RX OUT Then it is filtered through IC504 2 stage low pass filtered to enter CPU IC502 to decode 2 tone sig nalling CIRCUIT DESCRIPTION Fig 14 Encode Fig 15 Decode X1 VCXO IC6 D A A1 VCO IC1 SUM AMP IC509 Analog SW IC508 Audio processor IC3 PLL MB MD MO TO HT DI MIC TX RX UNIT TO DTMF IC502 CPU IC502 CPU IC513 2 2 LPF IC513 1 2 LPF TOI IC511 DTMF DECO IC508 Audio processor STD DEO IC514 2 2 LPF IC514 1 2 LPF 2TN RXOUT Q23 SW Q19 SW Q20 SW Q26 INV IC14 F F Q21 SW D21 SW R135 R134 IGN SB B PSW Fig 16 Power supply circuit 29 TK 760G 762G SEMICONDUCTOR DATA I Terminal function Pin No Name I O Function 1 EMGT O External MIC control Mobile MIC H 2 DTMF O DTMF 2TONE BEEP output 3 2TN I 2TONE decode pulse input 4 DTMSTD I DTMF decode detect Detect H 5 SIM I Destination select 6 BYTE I 5V 5C 7 CNVSS I GND 8 AFSTB O Base band IC strobe reset output 9 AFFCLK O Base band IC frame detect reset system reset output 10 RESET I Reset 11 XOUT O Clock output 12 VSS GND 13 XIN I Clock input 14 VCC
33. 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 You can select yes or no for the optional feature s warning tone OPERATING FEATURES REALIGNMENT REALIGNMENT 1 Modes User mode Panel test mode TK 760G only PC mode Firmware program ming mode Panel tuning mode Data program ming mode PC test mode PC tuning mode Self programming mode TK 760G only Check sum Clone mode Mode Function 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 Used to read and write frequency data mode and other features to and from the radio PC test mode Used to check the radio using the PC This feature is included in the FPU See panel tuning Firmware program Used when changing the main program ming mode of the flash memory Clone mode Used to transfer programming data from one radio to another Self programming Frequency signalling and features write mode to the radio 2 How to Enter Each Mode Mode Operation User mode Power ON Panel test mode SCN Power ON Two seconds PC mode Received commands from PC Panel tuning mode Panel test mode SC
34. tuning To place transceiver in tuning mode Channel appears on LCD Set channel according to tun ing requirements LCD display Test mode 1 1 Channel No Signalling No Press SCN now in tuning mode Use D A button to write tuning data through tuning modes and CH to adjust tuning requirements 1 to 256 appears on LCD Use button to select the adjustment item through tuning modes Use A button to adjust 3 point or 5 point tuning and use button to switch between wide narrow LCD display Tuning mode F R E Q 1 Adjustment 1 256 Adjustment item Point tuning indicator Wide Narrow indicator Off Wide On Narrow 46 TK 760G 762G FREQ_ _XX Frequency adj Display Function name HPOW_XXX RF high power H POW_XXX Hi power L H P OW_XXX Hi power L A D A D A D A D A D A H P O W_XXX Hi power C H P O W _XXX Hi power H H P O W _ XXX Hi power H LPOW_XXX RF low power L POW_XXX Low power L L P OW_XXX Low power L A L P O W_XXX Low power C L P O W _XXX Low power H L P O W _ XXX Low power H _MAX_XXX Max deviation Wide _ MAX_XXX Max deviation L _MAX_ XXX Max deviation Narrow A _ M A X_XXX Max deviation C _ M A X _ XXX Max deviation H WIDE NARROW _BAL_XXX DQT balance Wide _ BAL_XXX DQT balance L _BAL_XXX DQT balance Narrow A _
35. when an item is selected about 0 5 seconds 12345678 Display of the current setting If it is 8 or more digits scroll it 987 Display when a code is input Input it with DTMF key Blank Data clear No Function Choices Display Remarks 3 TX Step STP__250 Display when an item frequency 2 5kHz 1MHz STP_1000 is selected or when a step is changed about 0 5 seconds A Step change 2 5 5 0 6 25 7 5kHz 1MHz step Blank Frequency on 100 0000 T 100 0000 blank switching 550 0000MHz The rightmost dot indicates 50Hz digit On 5 Off 0 4 TX Off Off QT DQT signalling QT 67 0 250 3Hz QT__67 0_ switching EIA mode QT_250 3_ A Mode switching QT 67 0 250 3Hz QT__67 0 SCN Normal 0 1Hz step mode QT_250 3 Inverse switching DQT 000 777 DQT000N Normal DQT777N 1 step mode DQT 023 754 DQT023N_ Normal DQT754N_ Standard table mode DQT 000 777 DQT000I Inverse DQT777I 1 step mode DQT 023 754 DQT023I_ Inverse DQT754I_ Standard table mode 5 Option Off NONE____ Default signalling DTMF DTMF____ 2 TONE 2TONE___ 6 ID 000 ___ID___ Display when an item 9999999999 is selected about 0 5 seconds 12345678 Display of the current setting If it is 8 or more digits scroll it 987 Display whe
36. 030C CHIP C 3 0PF C K M C208 CC73FCH1H040C CHIP C 4 0PF C K2 C209 C93 0563 05 CHIP C 18PF J K2 C209 C93 0564 05 CHIP C 22PF J K M C210 CK73GB1H103K CHIP C 0 010UF K C211 C93 0564 05 CHIP C 22PF J C212 CK73GB1H102K CHIP C 1000PF K C213 C93 0563 05 CHIP C 18PF J C214 C93 0603 05 CHIP C 1000PF K C215 C93 0561 05 CHIP C 12PF J C216 CC73GCH1H0R5B CHIP C 0 5PF B C217 CC73GCH1H010B CHIP C 1 0PF B C218 CK73GB1C104K CHIP C 0 10UF K K M C219 C93 0565 05 CHIP C 27PF J C220 CK73GB1H102K CHIP C 1000PF K C221 C93 0563 05 CHIP C 18PF J K M C221 C93 0565 05 CHIP C 27PF J K2 C222 CC73GCH1H0R5B CHIP C 0 5PF B C223 CC73GCH1H010B CHIP C 1 0PF B K M C223 CC73GCH1H020B CHIP C 2 0PF B K2 C224 CK73GB1H102K CHIP C 1000PF K C230 231 CK73GB1C104K CHIP C 0 10UF K C241 C93 0554 05 CHIP C 4 0PF C K M C241 C93 0555 05 CHIP C 5 0PF C K2 C248 C92 0585 05 CHIP TAN 4 7UF 16WV C259 CK73GB1C104K CHIP C 0 10UF K C260 CK73GB1H103K CHIP C 0 010UF K C261 CK73FF1C105Z CHIP C 1 0UF Z C270 CK73GB1C104K CHIP C 0 10UF K C271 CK73GB1H472K CHIP C 4700PF K C272 CS15E1C010M TANTAL 1 0UF 16WV C274 CK73GB1C104K CHIP C 0 10UF K C275 C92 0004 05 CHIP TAN 1 0UF 16WV K2 C501 CK73GB1H102K CHIP C 1000PF K C502 CK73GB1C104K CHIP C 0 10UF K C503 CK73GB1H471K CHIP C 470PF K C504 CK73GB1H103K CHIP C 0 010UF K C505 CK73GB1C104K C
37. 1H101J CHIP C 100PF J C600 CK73GB1H102K CHIP C 1000PF K C601 602 CC73GCH1H101J CHIP C 100PF J C603 CK73GB1H102K CHIP C 1000PF K C604 606 CC73GCH1H101J CHIP C 100PF J C608 610 CC73GCH1H101J CHIP C 100PF J C611 612 CK73GB1H471K CHIP C 470PF K C613 CC73GCH1H101J CHIP C 100PF J C615 CK73GB1H471K CHIP C 470PF K C616 CC73GCH1H101J CHIP C 100PF J C618 CK73GB1H102K CHIP C 1000PF K C620 CK73GB1H471K CHIP C 470PF K C621 CK73GB1H102K CHIP C 1000PF K C623 CK73GB1H102K CHIP C 1000PF K C626 CK73GB1C104K CHIP C 0 10UF K C628 CK73GB1C104K CHIP C 0 10UF K C629 CC73GCH1H470J CHIP C 47PF J C630 C92 0507 05 CHIP TAN 4 7UF 6 3WV C631 CK73GB1H103K CHIP C 0 010UF K C632 CK73GB0J105K CHIP C 1 0UF K C633 CK73GB1C104K CHIP C 0 10UF K C720 C92 0566 05 CHIP TAN 10UF 6 3WV CN1 E40 6047 05 PIN ASSY CN2 E40 6021 05 FLAT CABLE CONNECTOR CN3 E40 3247 05 PIN ASSY CN4 E40 5737 05 PIN ASSY CN5 E40 5738 05 PIN ASSY CN7 E40 3247 05 PIN ASSY CN8 E40 3246 05 PIN ASSY CN501 E40 6021 05 FLAT CABLE CONNECTOR J1 E11 0442 05 3 5D PHONE JACK 3P J501 E08 0877 05 MODULAR JACK W1 E37 0856 05 PROCESSED LEAD WIRE F1 F53 0108 05 FUSE J31 0543 05 COLLAR LH 5 1 5 CF1 L72 0959 05 CERAMIC FILTER CF2 L72 0973 05 CERAMIC FILTER L1 L40 1005 34 SMALL FIXED INDUCTOR 10UH 8 L2 4 L40 3381 86 SMALL FIXED INDUCTOR 0 33U 160 L5 L34 4530 05 COIL L
38. 1J CHIP R 470 J 1 16W R81 RK73GB1J101J CHIP R 100 J 1 16W R82 RK73GB1J152J CHIP R 1 5K J 1 16W R83 RK73GB1J684J CHIP R 680K J 1 16W R85 RK73GB1J272J CHIP R 2 7K J 1 16W R86 RK73GB1J122J CHIP R 1 2K J 1 16W R87 RK73GB1J102J CHIP R 1 0K J 1 16W R88 RK73GB1J271J CHIP R 270 J 1 16W R89 RK73GB1J102J CHIP R 1 0K J 1 16W R90 91 RK73GB1J104J CHIP R 100K J 1 16W R92 R92 1252 05 CHIP R 0 OHM R93 RK73GB1J152J CHIP R 1 5K J 1 16W R94 R92 1252 05 CHIP R 0 OHM R95 RK73GB1J103J CHIP R 10K J 1 16W R97 RK73GB1J473J CHIP R 47K J 1 16W R98 RK73GB1J223J CHIP R 22K J 1 16W R99 RK73GB1J271J CHIP R 270 J 1 16W R100 101 RK73GB1J101J CHIP R 100 J 1 16W R103 RK73GB1J472J CHIP R 4 7K J 1 16W R105 RK73GB1J470J CHIP R 47 J 1 16W R106 RK73GB1J222J CHIP R 2 2K J 1 16W R107 RK73GB1J473J CHIP R 47K J 1 16W R108 RK73GB1J271J CHIP R 270 J 1 16W R109 RK73GB1J102J CHIP R 1 0K J 1 16W R110 RK73GB1J220J CHIP R 22 J 1 16W R111 RK73GB1J180J CHIP R 18 J 1 16W R112 RK73GB1J333J CHIP R 33K J 1 16W R113 RK73GB1J271J CHIP R 270 J 1 16W R114 RK73GB1J472J CHIP R 4 7K J 1 16W R115 RK73GB1J103J CHIP R 10K J 1 16W R116 RK73GB1J473J CHIP R 47K J 1 16W R117 RK73GB1J222J CHIP R 2 2K J 1 16W R118 RK73GB1J102J CHIP R 1 0K J 1 16W R119 RK73GB1J103J CHIP R 10K J 1 16W R120 R92 1252 05 CHIP R 0 OHM R121 RK73GB1J100J CH
39. 1K CHIP C 470PF K C121 CC73GCH1H090D CHIP C 9 0PF D C122 CC73GCH1H0R5B CHIP C 0 5PF B C123 CK73GB1H471K CHIP C 470PF K C124 CC73GCH1H0R5B CHIP C 0 5PF B C125 CK73GB1H102K CHIP C 1000PF K C126 CK73GB1H471K CHIP C 470PF K C127 CC73GCH1H100D CHIP C 10PF D TC106 C05 0384 05 CERAMIC TRIMMER CAP 10P 8 TC109 C05 0384 05 CERAMIC TRIMMER CAP 10P 8 CN101 E40 6019 05 PIN ASSY F10 2279 04 SHIELDING CASE L101 104 L40 1595 34 SMALL FIXED INDUCTOR 1 5UH 8 L105 L40 3975 34 SMALL FIXED INDUCTOR 39NH 8 L106 L40 2775 34 SMALL FIXED INDUCTOR 27NH 8 L107 108 L40 1098 76 SMALL FIXED INDUCTOR 1UH 2522 L109 110 L40 1595 34 SMALL FIXED INDUCTOR 1 5UH 8 L111 L34 4547 05 AIR CORE COIL K M L112 L34 4548 05 AIR CORE COIL K2 L116 L34 4549 05 AIR CORE COIL R101 102 RK73GB1J101J CHIP R 100 J 1 16W R103 RK73GB1J102J CHIP R 1 0K J 1 16W R104 RK73GB1J470J CHIP R 47 J 1 16W R105 RK73GB1J154J CHIP R 150K J 1 16W R106 RK73GB1J470J CHIP R 47 J 1 16W R107 110 RK73GB1J103J CHIP R 10K J 1 16W R111 RK73GB1J331J CHIP R 330 J 1 16W R112 113 RK73GB1J181J CHIP R 180 J 1 16W R114 RK73GB1J470J CHIP R 47 J 1 16W R115 RK73GB1J103J CHIP R 10K J 1 16W R116 RK73GB1J392J CHIP R 3 9K J 1 16W R117 RK73GB1J101J CHIP R 100 J 1 16W D101 104 1SV283 VARIABLE CAPACITANCE DIODE D105 HVU363A DIODE Q101 2SK508NV K52 FET Q102 DTC114EUA DIGITAL TRAN
40. 2 C603 C609 C605 C601 C599 C613 C503 IC503 G I O C507 R526 R536 C524 R556 C526 C626 C628 R616 R539 C580 R531 C523 C538 R534 R518 R510 R532 R537 C520 R551 C532 R540 R541 C630 C631 D529 R622 IC501 1 16 17 32 IC510 1 CNT CK 8 9 16 C501 R505 IC507 1 4 5 8 C543 R560 R562 C541 R563 R564 R561 C542 C537 D514 CH DN CH UP C517 E MBL 5C LCD CS SB CNT DT E D511 C505 R544 C528 C531 C527 R566 R559 R567 J501 PSW MBL GND ME HOOK RXD CM MIC PTT TXD PSB D513 J72 0677 02 B 2 D512 VOL UP VOL DN D509 R533 D510 R542 R512 D506 R535 C525 R545 R543 R547 C529 R552 R520 R521 L501 R517 R618 R619 IC513 IC514 1 4 5 8 1 4 5 8 MON TK 760G A TK 760G MON TK 762G D A TK 760G TK 762G TK 760G TK 762G TK 760G A TK 762G SCN TK 760G F RESET SPD X501 IC502 1 25 26 50 51 75 76 100 IC505 1 8 4 5 R508 R501 IC508 1 22 23 33 34 44 11 12 R583 Q504 Q508 IC509 1 7 8 14 C578 C584 D527 D524 D525 CP536 CP531 CP534 C559 C560 R575 CP538 CP530 R600 R599 D504 D501 D502 R595
41. 220 R157 C183 C187 R162 C177 R112 R110 C130 C133 C152 R166 Q33 Q16 C215 C219 C209 C127 C23 L10 C149 C169 C192 Q7 C41 C44 C52 R23 R46 D21 R138 R134 R126 D27 Q5 R103 R163 1 4 5 8 C102 IC8 Q3 R18 R58 R16 R30 R39 R24 F1 C143 R142 R100 R21 R14 R116 Q18 Q28 R159 R33 R25 C33 R36 L1 C36 C26 R31 C31 C181 Q25 L14 C158 L12 Q22 R127 R132 R144 C189 R128 R119 R109 R129 R111 C132 C137 R117 D16 R97 L6 R118 C135 C124 R94 C105 C110 Q 14 L9 C100 C82 L8 C126 R105 L7 R99 Q15 R88 R125 R145 Q26 R152 R122 R135 D20 R32 R38 C24 R17 R12 C20 R153 D19 D15 C129 C150 R83 R80 C87 R81 R149 R47 R72 R60 C78 C58 R54 R168 R139 R141 R130 R173 R174 R41 R20 R15 C29 R26 R120 Q20 R114 C153 C163 R154 R176 R179 R172 C154 C164 R124 R181 R180 R164 C216 R171 R167 Q27 R147 R161 C167 C175 C136 C155 C62 C56 L4 L2 L3 C49 D10 D8 8CL C146 C230 C231 C241 R182 R183 R184 C122 C173 C185 C194 C201 C218 C22 C51 C53 D18 D23 8R TV CV D28 D30 D31 IC2
42. 25 R107 C115 C104 C105 R103 R108 C116 L110 L109 C122 R115 R109 R114 R111 Q102 Q104 Q105 Q106 L106 C127 L111 L112 L116 C107 C114 C121 C118 C111 C123 C117 D105 R116 C110 R101 R102 TC106 L101 TC109 R117 R106 R104 R105 C113 C124 R112 R113 L102 C112 D101 D102 D103 D104 L108 L107 Q101 G S D G S D Q103 L105 PLL VCO X58 4670 XX 10 K M 11 K2 Component side view PLL VCO X58 4670 XX 10 K M 11 K2 Foil side view DISPLAY UNIT X54 3280 10 TK 762G Component side view DISPLAY UNIT X54 3280 10 TK 762G Foil side view Component side Foil side A B C D E F G H I J K L M N O P Q R S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C91 C67 D12 D13 R93 C104 Q32 L24 L20 L25 IC5 IC6 IC3 C10 C7 C3 C60 C107 C75 Q9 C54 XF1 CN4 CN5 C50 C131 C117 C161 C160 R68 C74 C46 C43 R44 IC4 R78 IC7 C103 C98 C81 R71 Q12 C89 C93 C99 C1 C5 C8 C11 C2 C6 C9 C12 C141 C144 C134 IC12 C39 C32 C203 C207 C210 C212 L18 C213 L15 C138 D33 C211 L13 L11 C86 C64 CF2 CF1 R87 C96 C97 C16 C17 C18 C19 C21 C15 C14 C13 R9 R10
43. 333J CHIP R 33K J 1 16W R163 R92 0670 05 CHIP R 0 OHM R164 R92 1213 05 CHIP R 100 J 1 2W R166 RK73GB1J181J CHIP R 180 J 1 16W R167 R92 1252 05 CHIP R 0 OHM R168 169 RK73GB1J103J CHIP R 10K J 1 16W R170 RK73FB2A222J CHIP R 2 2K J 1 10W R171 RK73GB1J153J CHIP R 15K J 1 16W R172 RK73GB1J334J CHIP R 330K J 1 16W R173 RK73GB1J332J CHIP R 3 3K J 1 16W R174 RK73GB1J103J CHIP R 10K J 1 16W TX RX UNIT X57 5950 XX TK 760G 762G PARTS LIST 39 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation R175 RK73GB1J682J CHIP R 6 8K J 1 16W R176 RK73GB1J104J CHIP R 100K J 1 16W R177 R92 1261 05 CHIP R 150 J 1 2W R178 RK73GB1J103J CHIP R 10K J 1 16W R179 181 RK73GB1J223J CHIP R 22K J 1 16W R182 RK73GB1J102J CHIP R 1 0K J 1 16W R183 R92 0670 05 CHIP R 0 OHM R184 R92 1252 05 CHIP R 0 OHM R185 RK73GB1J473J CHIP R 47K J 1 16W R186 R92 1252 05 CHIP R 0 OHM R188 RK73GB1J102J CHIP R 1 0K J 1 16W R189 RK73GB1J101J CHIP R 100 J 1 16W R190 RK73GB1J473J CHIP R 47K J 1 16W R192 RK73GB1J103J CHIP R 10K J 1 16W R193 RK73GB1J102J CHIP R 1 0K J 1 16W R194 RK73GB1J473J CHIP R 47K J 1 16W R195 RK73GB1J154J CHIP R 150K J 1 16W R196 RK73GB1J332J CHIP R 3 3K J 1 16W R197 R92 1252 05 CHIP R 0 OHM R208 R92 0670 05 CHIP R 0 OHM R210 RK73
44. 43 C37 C66 R61 C69 D1 R22 C121 C119 C190 C157 C180 R115 Q29 R178 C123 R107 R136 Q24 C186 Q19 SP C128 C116 C113 IC10 Q21 R175 C204 C196 C217 C223 R169 IC15 D36 D35 C224 C220 R157 C183 C187 R162 C177 R112 R110 C130 C133 C152 R166 Q33 Q16 C215 C219 C209 C127 C23 L10 C149 C169 C192 Q7 C41 C44 C52 R23 R46 D21 R138 R134 R126 D27 Q5 R103 R163 1 4 5 8 C102 IC8 Q3 R18 R58 R16 R30 R39 R24 F1 C143 R142 R100 R21 R14 R116 Q18 Q28 R159 R33 R25 C33 R36 L1 C36 C26 R31 C31 C181 Q25 L14 C158 L12 Q22 R127 R132 R144 C189 R128 R119 R109 R129 R111 C132 C137 R117 D16 R97 L6 R118 C135 C124 R94 C105 C110 Q 14 L9 C100 C82 L8 C126 R105 L7 R99 Q15 R88 R125 R145 Q26 R152 R122 R135 D20 R32 R38 C24 R17 R12 C20 R153 D19 D15 C129 C150 R83 R80 C87 R81 R149 R47 R72 R60 C78 C58 R54 R168 R139 R141 R130 R173 R174 R41 R20 R15 C29 R26 R120 Q20 R114 C153 C163 R154 R176 R179 R172 C154 C164 R124 R181 R180 R164 C216 R171 R167 Q27 R147
45. 6 L40 1581 86 SMALL FIXED INDUCTOR 0 15U 160 L7 L40 4785 85 SMALL FIXED INDUCTOR 0 47U 252 L8 L40 8285 85 SMALL FIXED INDUCTOR 0 82U 252 L9 L40 1085 77 SMALL FIXED INDUCTOR 100NH 160 L10 L40 6875 77 SMALL FIXED INDUCTOR 68NH 1608 L11 L34 4472 05 COIL L12 L40 3375 34 SMALL FIXED INDUCTOR 33NH 8 L13 L34 4473 05 COIL L14 L40 6875 34 SMALL FIXED INDUCTOR 68NH 8 L15 L34 4473 05 COIL L17 L92 0179 05 FERRITE CHIP L18 L34 4472 05 COIL L20 L34 4480 05 AIR CORE COIL K2 L20 L34 4481 05 AIR CORE COIL K M L21 L34 4478 05 AIR CORE COIL L22 L34 4480 05 AIR CORE COIL L23 L34 0742 05 AIR CORE COIL L24 L34 4481 05 AIR CORE COIL L25 L34 4478 05 AIR CORE COIL L26 L40 4775 77 SMALL FIXED INDUCTOR 47NH 1608 L27 L40 1581 86 SMALL FIXED INDUCTOR 0 15U 160 L33 L92 0179 05 FERRITE CHIP L501 L92 0138 05 FERRITE CHIP L503 504 L92 0138 05 FERRITE CHIP L510 L92 0138 05 FERRITE CHIP X1 L77 1826 05 TCXO 16 8M X501 L77 1708 05 CRYSTAL RESONATOR 3 579545MHZ X502 L78 0462 05 RESONATOR 9 8304M 8 2 5 XF1 L71 0551 15 MCF 49 95MHZ 5 0K CP501 505 R90 0741 05 MULTIPLE RESISTOR CP508 514 R90 0741 05 MULTIPLE RESISTOR CP516 524 R90 0741 05 MULTIPLE RESISTOR CP526 527 R90 0741 05 MULTIPLE RESISTOR CP529 536 R90 0741 05 MULTIPLE RESISTOR CP538 R90 0741 05 MULTIPLE RESISTOR CP539 R90 0724 05 MULTI COMP 1K X4 R1 R92 1252 05 CHIP R 0 OHM R2 RK73GB1J102J CHIP R 1 0K
46. 623 C504 C522 C553 Q 502 R548 R582 C555 C558 R578 C581 C587 C565 C566 R576 R614 R585 R613 CP517 R590 CP533 CP535 CP526 CP524 R607 C576 C577 CP532 CP522 CP529 CP521 CP518 CP523 CP520 C516 C518 C502 R511 R527 X502 R515 Q501 C514 R550 R554 C530 R553 C534 C549 C550 C533 R581 C557 C545 R610 R523 R509 CN501 L503 R617 R620 R621 CNT CK E MBL 5C LCD CS SB CNT DT E J72 0677 02 B 2 CP 519 IC511 1 7 8 14 CP514 CP513 R506 R507 R568 R530 C519 R584 C571 R586 IC512 O G I C583 C575 D528 R598 R569 CP539 C547 C552 R565 R588 CP505 CP527 D508 C574 Q503 C572 L510 C633 C596 C594 C598 R608 C612 Q509 R605 C611 C582 C604 C608 C610 C606 C602 C600 C618 C621 C616 C597 C506 R513 C539 C568 C564 C567 C540 C563 R571 R574 Q506 C589 R591 C569 C573 R579 C551 R577 R587 R615 R606 R612 Q505 B C E R594 R516 C556 D523 CP516 C579 C515 R528 C585 R604 R580 C546 CP501 R603 CP502 CP510 CP509 CP508 CP503 CP512 CP511 CP504 D503 R558 C536 R546 R549 C535 C548 R557 C562 R573 C554 R570
47. 62G DESCRIPTION OF COMPONENTS Ref No Use Function Operation Condition IC9 Shift Store register HNC 8RC 8TC SPMUTE RX PA LI AUX5 AUX6 IC10 5V AVR 5C TX RX IC11 9V AVR 9C IC12 8V AVR 8C IC13 AF amplifier IC14 Power supply logic circuit control IC15 DC amplifier APC control IC400 Power module IC501 Flash ROM IC502 CPU IC503 Reset IC Low voltage output when powering up IC505 EEPROM IC507 Amplifier MIC AFO IC508 Audio processor Compander MIC amplifier ALC AF filter IDC IC509 Analog switch MO DEO EMG MI switch IC510 Shift Store register W N MM2 MBL LED0 LED1 AFREG1 AFREG2 BSHIFT IC511 DTMF decode IC512 5V AVR 5C control IC513 Amplifier QT DQT decode IC514 Amplifier 2 Tone decode Q1 DC switch HOR Q2 DC switch 5S Q3 DC switch W N Active while it is narrow Q4 DC switch W N Active while it is wide Q5 DC switch HNC Q6 DC switch IGN Q7 Buffer amplifier 16 8MHz x 3 Q8 Lipple filter 8CL Q9 Buffer amplifier PLL fin Q10 Noise amplifier Squelch Q11 Charge pump P Q12 Charge pump R Q13 IF amplifier 49 95MHz Q14 Buffer amplifier Hetetodyne Q15 Mixer Q16 DC switch 8R cont active while RX Q17 AF mute Active while AF mute Q18 DC switch 8R active while RX Q19 20 DC switch SB switch active when powering up Ref No Use Function Operation Condition
48. 8M TA75W558FU TC75W51FU DAN202K DAN202U DAN235K MA742 2SK508NV 3SK241 3SK228 2SK1824 BU4094BCF TC4013BF BU4066BCFV M62363FP LC75823W AN8009M AT29C020 90TI AT2408N10SI2 5 TC35453F M67741H 32 M67741L 35 M B15A02 NJM78L05UA RH5VL42C S 81350HG KD BU4094BCFV TA7808S NJM2904V UPB1509GV TA75S01F TA31136FN LC73872M LC75833W 2SC4617 2SC4619 2SC4738 30622M4102GP T R P N L J H F D B S Q O M K I G E C A 1 3 5 7 2 4 6 SCHEMATIC DIAGRAM TK 760G Note Components marked with a dot are parts of patterun 1 70 A C E G I K M O Q S B D F H J L N P R T 1 3 5 7 2 4 6 TK 762G SCHEMATIC DIAGRAM 71 Note Components marked with a dot are parts of patterun 1 TK 760G 762G TK 760G 762G TK 760G 762G BLOCK DIAGRAM 77 79 78 LEVEL DIAGRAM Receiver Section Center Frequency 49 95MHz 450kHz Audio Frequency Control Unit TX RX Unit VCO Unit TX RX Unit Power Module TX RX Unit To make measurements in the RF section connect the RF level meter In the RF section use a 0 01 F coupling capacitor The display shows the SSG input value required to obtain 12dB SINAD To make measurements in the AF section connect the AC level meter ANT input 53dBm 1kHz FM 3kHz DEV Wide 1 5kHz DEV Narrow The AF output level is adjusted for 0 45V 4 by the front panel AF VOL control To make measurement
49. 90K J 1 16W R582 RK73GB1J273J CHIP R 27K J 1 16W R583 RK73GB1J470J CHIP R 47 J 1 16W R584 RK73GB1J220J CHIP R 22 J 1 16W R585 R92 1252 05 CHIP R 0 OHM R586 RK73GB1J473J CHIP R 47K J 1 16W R587 R92 1252 05 CHIP R 0 OHM R588 RK73GB1J103J CHIP R 10K J 1 16W R590 RK73GB1J333J CHIP R 33K J 1 16W R591 R92 1252 05 CHIP R 0 OHM R592 RK73GB1J103J CHIP R 10K J 1 16W R593 RK73GB1J181J CHIP R 180 J 1 16W R594 RK73GB1J392J CHIP R 3 9K J 1 16W R595 RK73GB1J181J CHIP R 180 J 1 16W R598 RK73GB1J473J CHIP R 47K J 1 16W R599 RK73GB1J102J CHIP R 1 0K J 1 16W R600 R92 1252 05 CHIP R 0 OHM R602 RK73GB1J473J CHIP R 47K J 1 16W R603 RK73GB1J101J CHIP R 100 J 1 16W R604 RK73GB1J472J CHIP R 4 7K J 1 16W R605 RK73GB1J332J CHIP R 3 3K J 1 16W R606 RK73GB1J102J CHIP R 1 0K J 1 16W R607 RK73GB1J101J CHIP R 100 J 1 16W R608 RK73GB1J122J CHIP R 1 2K J 1 16W R610 611 RK73GB1J473J CHIP R 47K J 1 16W R612 RC05GF2H221J RC 220 J 1 2W R613 RK73GB1J103J CHIP R 10K J 1 16W R614 615 R92 1252 05 CHIP R 0 OHM R616 RK73GB1J474J CHIP R 470K J 1 16W R617 RK73GB1J472J CHIP R 4 7K J 1 16W R618 RK73GB1J683J CHIP R 68K J 1 16W TX RX UNIT X57 5950 XX TK 760G 762G PARTS LIST 40 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation R619 RK73G
50. B A L_XXX DQT balance C _ B A L _ XXX DQT balance H _FQT_XXX QT fine deviation Wide _ FQT_XXX QT fine deviation L _FQT_ XXX QT fine deviation Narrow A _ F Q T_XXX QT fine deviation C _ F Q T _ XXX QT fine deviation H FDQT_XXX DQT fine deviation Wide F DQT_XXX DQT fine deviation L FDQT_XXX DQT fine deviation Narrow A F D Q T_XXX DQT fine deviation C F D Q T _ XXX DQT fine deviation H SENS_XXX Seisitivity S ENS_XXX Sensitivity L A S E N S_XXX Sensitivity C S E N S _ XXX Sensitivity H DTMF_XXX DTMF fine deviation Wide DTMF_XXX DTMF fine deviation Narrow TONE_XXX Single tone fine deviation Wide TONE_XXX Single tone fine deviation Narrow WIDE NARROW D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A SQL3_XXX Squelch Open Wide S QL3_XXX Squelch Open L SQL3_XXX Squelch Open Narrow A S Q L 3_XXX Squelch Open C S Q L 3 _ XXX Squelch Open H SQL9_XXX Squelch Tight Wide S QL9_XXX Squelch Ti
51. B1J104J CHIP R 100K J 1 16W R620 621 RK73GB1J103J CHIP R 10K J 1 16W R622 RK73GB1J473J CHIP R 47K J 1 16W R701 RD14BB2C473J RD 47K J 1 6W R704 RK73GB1J223J CHIP R 22K J 1 16W D1 HSB123 DIODE D2 02DZ20 Y Z ZENER DIODE D3 5 HSB123 DIODE D8 DAN235K DIODE D9 1SS355 DIODE D10 DAN235K DIODE D11 MA742 DIODE D14 1SS355 DIODE D15 DAN202K DIODE D16 DAN235K DIODE D17 1SS355 DIODE D18 HVC350B VARIABLE CAPACITANCE DIODE D19 20 1SS355 DIODE D21 02DZ18 X Y ZENER DIODE D22 HSB123 DIODE D23 HVC350B VARIABLE CAPACITANCE DIODE D24 02DZ15 X Y ZENER DIODE D25 22ZR 10D SURGE ABSORBER D27 1SS355 DIODE D28 HVC350B VARIABLE CAPACITANCE DIODE D29 DSM3MA1 DIODE D30 31 HVC350B VARIABLE CAPACITANCE DIODE D33 XB15A709 DIODE D34 MA4PH633 DIODE D35 36 MA742 DIODE D39 UDZ4 7 B ZENER DIODE D40 MA742 DIODE D41 HZU5ALL DIODE D501 504 MA2S111 DIODE D505 MA2S111 DIODE 762 D506 507 MA2S111 DIODE D508 MA742 DIODE D523 DAN202U DIODE D524 525 HSB123 DIODE D526 1812L075PR VARISTOR D527 528 HSB123 DIODE D529 MA742 DIODE IC1 2 TA75S01F IC OP AMP IC3 MB15A02 IC IC4 NJM4558M IC OP AMP X2 IC5 TA31136FN IC FM IF DETECTOR IC6 M62363FP IC 8bit D A CONVERTER IC7 NJM2904M IC OP AMP X2 IC8 UPB1509GV IC IC9 BU4094BCF IC 8 STAGE SHIFT STORE REGISTE IC10 NJM78L05UA IC VOLTAGE REGULATOR 5V IC11 AN8009M IC REGULATOR IC12
52. C214 D34 L22 C171 C208 R76 C83 IC13 C166 C172 C114 C195 C30 C35 C47 C63 L23 Q8 R188 Q37 R193 D40 L26 R202 R201 Q38 R197 L5 C261 C260 R195 Q39 C77 D25 R19 Q35 R208 TV 8R CV J72 0677 02 A 2 A1 X58 4670 XX 8CL 1 10 11 20 1 8 9 16 G O I 1 4 5 8 1 12 13 24 G DS 5C G SD 1 4 5 8 SB GND DEO DTC IGN DI ME MI PTT SQ 1 8 RSSI GND E C B O G I GND B J1 EXT SP CN7 1 3 PA LI SPI SPO CN8 2 1 E 10 SP CN3 SB E HOR 3 1 1 1 3 AM MM EMG TXS G DS CN1 15 1 GND MIO MII AFI AFO ALT AUX2 AUX4 AUX1 AUX3 NC AUX6 AUX5 5S 8C R155 R160 D22 C92 C94 C95 R69 L17 IC14 R123 R95 C200 C156 R133 Q23 C221 C205 C148 C222 C274 R170 D29 C179 D2 Q1 D24 C4 R29 R151 C142 C174 R108 R113 C139 C168 R137 C151 R121 C147 C170 D17 C162 C159 R101 R98 C112 C115 C118 C120 R106 R92 UL C125 R148 R146 R150 Q4 D3 D4 D5 R13 Q6 D14 Q17 C106 Q13 C88 D11 R
53. CHIP TAN 10UF 6 3WV C556 CK73GB1C333K CHIP C 0 033UF K C557 CK73GB1C104K CHIP C 0 10UF K C558 CC73GCH1H101J CHIP C 100PF J C559 CK73GB1H102K CHIP C 1000PF K C560 563 CK73GB1C104K CHIP C 0 10UF K C564 C92 0507 05 CHIP TAN 4 7UF 6 3WV C565 566 CK73GB1H472K CHIP C 4700PF K C567 CC73GCH1H101J CHIP C 100PF J C568 C92 0507 05 CHIP TAN 4 7UF 6 3WV C569 CK73GB1E223K CHIP C 0 022UF K C570 CK73FF1C105Z CHIP C 1 0UF Z C571 572 CK73GB1H102K CHIP C 1000PF K C573 CK73FB1H563K CHIP C 0 056UF K C574 CC73GCH1H470J CHIP C 47PF J C575 CK73GB1H102K CHIP C 1000PF K C576 CK73GB1C104K CHIP C 0 10UF K C577 578 CK73GB1H103K CHIP C 0 010UF K C579 CC73GCH1H101J CHIP C 100PF J C580 CK73GB1C104K CHIP C 0 10UF K C581 CK73GB1H102K CHIP C 1000PF K TX RX UNIT X57 5950 XX TK 760G 762G PARTS LIST 37 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation C582 CK73GB1C473K CHIP C 0 047UF K C583 C92 0566 05 CHIP TAN 10UF 6 3WV C584 CK73GB1H103K CHIP C 0 010UF K C585 CC73GCH1H101J CHIP C 100PF J C587 CK73GB1H103K CHIP C 0 010UF K C589 C92 0606 05 CHIP TAN 4 7UF 10WV C590 CK73GB1H102K CHIP C 1000PF K C594 CK73GB1H102K CHIP C 1000PF K C596 CK73GB1H102K CHIP C 1000PF K C597 CC73GCH1H101J CHIP C 100PF J C598 CK73GB1H102K CHIP C 1000PF K C599 CC73GCH
54. Document Copyrights Copyright 2006 by Kenwood Corporation All rights reserved No part of this manual may be reproduced translated distributed or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise for any purpose without the prior written permission of Kenwood Disclaimer While every precaution has been taken in the preparation of this manual Kenwood assumes no responsibility for errors or omissions Neither is any liability assumed for damages resulting from the use of the information contained herein Kenwood reserves the right to make changes to any products herein at any time for improvement purposes 2000 1 PRINTED IN JAPAN B51 8497 10 N 1269 VHF FM TRANSCEIVER TK 760G 762G SERVICE MANUAL REVISED Please use this manual in place of the service manual preliminary version B51 8497 00 We have added the information on the circuit description specifications and K2 version specifications to the service manual preliminary version B51 8497 00 Microphone T91 0597 15 Cabinet Upper A01 2165 13 Panel assy A62 0642 03 Key top K29 5343 02 Microphone T91 0597 15 Cabinet Upper A01 2165 13 Panel assy A62 0731 03 Key top K29 5344 02 TK 760G K TK 762G K 2 TK 760G 762G CONTENTS GENERAL GENERAL INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni cians familiar with similar typ
55. E471M ELECTRO 470UF 25WV C167 CC73GCH1H150J CHIP C 15PF J C168 170 CK73GB1H102K CHIP C 1000PF K C171 CC73GCH1H020B CHIP C 2 0PF B TX RX UNIT X57 5950 XX TX RX UNIT X57 5950 XX 10 TK 760G K 11 TK 762G K 12 TK 760G K2 13 TK 762G K2 21 TK 760G M TK 760G 762G PARTS LIST 36 Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation C172 CE04EW1E471M ELECTRO 470UF 25WV C173 CK73GB1C104K CHIP C 0 10UF K C174 CK73GB1H102K CHIP C 1000PF K C175 CC73GCH1H080D CHIP C 8 0PF D K M C175 CC73GCH1H100D CHIP C 10PF D K2 C177 CK73GB1H102K CHIP C 1000PF K C179 CK73GB1H102K CHIP C 1000PF K C180 CK73GB1H103K CHIP C 0 010UF K C181 CC73FCH1H120J CHIP C 12PF J C183 CK73GB1H102K CHIP C 1000PF K C185 CK73GB1C104K CHIP C 0 10UF K C186 187 CK73GB1H102K CHIP C 1000PF K C189 190 CK73GB1H102K CHIP C 1000PF K C192 CK73GB1H102K CHIP C 1000PF K C194 CK73GB1C104K CHIP C 0 10UF K C195 C92 0719 05 ELECTRO 47UF 25WV C196 CK73GB1H102K CHIP C 1000PF K C198 CK73GB1H102K CHIP C 1000PF K C200 CK73GB1H102K CHIP C 1000PF K C201 CK73GB1C104K CHIP C 0 10UF K C203 CK73GB1H102K CHIP C 1000PF K C204 C92 0004 05 CHIP TAN 1 0UF 16WV C205 C93 0558 05 CHIP C 8 0PF D K2 C205 C93 0560 05 CHIP C 10PF D K M C207 CK73GB1H103K CHIP C 0 010UF K C208 CC73FCH1H
56. GB1J223J CHIP R 22K J 1 16W R501 RK73GB1J473J CHIP R 47K J 1 16W R502 RK73GB1J472J CHIP R 4 7K J 1 16W R503 RK73GB1J102J CHIP R 1 0K J 1 16W R504 507 RK73GB1J473J CHIP R 47K J 1 16W R508 RK73GB1J102J CHIP R 1 0K J 1 16W R509 510 R92 1252 05 CHIP R 0 OHM R511 RK73GB1J473J CHIP R 47K J 1 16W R512 RK73GB1J104J CHIP R 100K J 1 16W R513 RK73GB1J223J CHIP R 22K J 1 16W R514 RK73GB1J473J CHIP R 47K J 1 16W R515 516 RK73GB1J223J CHIP R 22K J 1 16W R517 RK73GB1J473J CHIP R 47K J 1 16W R518 RK73GB1J472J CHIP R 4 7K J 1 16W R519 RK73GB1J103J CHIP R 10K J 1 16W R520 523 RK73GB1J102J CHIP R 1 0K J 1 16W R526 RK73GB1J154J CHIP R 150K J 1 16W R527 R92 1252 05 CHIP R 0 OHM R528 RK73GB1J472J CHIP R 4 7K J 1 16W R529 RK73GB1J154J CHIP R 150K J 1 16W R530 RK73GB1J473J CHIP R 47K J 1 16W R531 RK73GB1J394J CHIP R 390K J 1 16W R532 RK73GB1J103J CHIP R 10K J 1 16W R533 RK73GB1J104J CHIP R 100K J 1 16W R534 RK73GB1J823J CHIP R 82K J 1 16W R535 RK73GB1J103J CHIP R 10K J 1 16W R536 RK73GB1J153J CHIP R 15K J 1 16W R537 RK73GB1J105J CHIP R 1 0M J 1 16W R538 RK73GB1J103J CHIP R 10K J 1 16W R539 R92 1252 05 CHIP R 0 OHM R540 RK73GB1J223J CHIP R 22K J 1 16W R541 RK73GB1J184J CHIP R 180K J 1 16W R542 RK73GB1J102J CHIP R 1 0K J 1 16W R543 RK73GB1J184J CHIP R 180K J 1 16W R544 RK73GB1J103J CHIP R 10K
57. H J K L ppm C 30 60 120 250 500 Example CC45TH 470 60ppm C Multiplier 2nd number 1st number 2 2 0 22pF CAPACITORS CC 45 TH 1H 220 J 1 2 3 4 5 6 1 Type ceramic electrolytic etc 4 Voltage rating 2 Shape round square ect 5 Value 3 Temp coefficient 6 Tolerance Temperature coefficient 1st Word C L P R S T U Color Black Red Orange Yellow Green Blue Violet ppm C 0 80 150 220 330 470 750 Tolerance More than 10pF Code C D G J K M X Z P No code 0 25 0 5 2 5 10 20 40 80 100 More than 10 F 10 50 20 20 0 Less than 4 7 F 10 75 Voltage rating A B C D E F G H J K V 0 1 0 1 25 1 6 2 0 2 5 3 15 4 0 5 0 6 3 8 0 1 10 12 5 16 20 25 31 5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 3 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 Chip capacitors EX C C 7 3 F S L 1 H 0 0 0 J 1 2 3 4 5 6 7 Chip CH RH UJ SL EX C K 7 3 F F 1 H 0 0 0 Z 1 2 3 4 5 6 7 Chip B F RESISTORS Chip resistor Carbon EX R D 7 3 E B 2 B 0 0 0 J 1 2 3 4 5 6 7 Chip B F Carbon resistor Normal type EX R D 1 4 B B 2 C 0 0 0 J 1 2 3 4 5 6 7 1 Type ceramic electrolytic etc 5 Voltage rating 2 Shape round s
58. HIP C 0 10UF K C506 507 CK73GB1H103K CHIP C 0 010UF K C508 CK73GB1H472K CHIP C 4700PF K C509 C92 0507 05 CHIP TAN 4 7UF 6 3WV C514 CC73GCH1H680J CHIP C 68PF J C515 CK73GB1H103K CHIP C 0 010UF K C516 CC73GCH1H270J CHIP C 27PF J C517 CK73GB1C683K CHIP C 0 068UF K C518 CC73GCH1H270J CHIP C 27PF J C519 CK73GB1H102K CHIP C 1000PF K C520 CK73GB1C104K CHIP C 0 10UF K C521 CK73GB1H102K CHIP C 1000PF K C522 C92 0507 05 CHIP TAN 4 7UF 6 3WV C523 CC73GCH1H221J CHIP C 220PF J C524 CK73GB1H103K CHIP C 0 010UF K C525 CK73GB1E123K CHIP C 0 012UF K C526 CK73GB1C683K CHIP C 0 068UF K C527 CK73GB1H222K CHIP C 2200PF K C528 CK73GB1H103K CHIP C 0 010UF K C529 CK73GB1H272K CHIP C 2700PF K C530 CK73GB1H152K CHIP C 1500PF K C531 CK73GB1H272K CHIP C 2700PF K C532 533 CK73GB1C104K CHIP C 0 10UF K C534 535 CK73GB1H103K CHIP C 0 010UF K C536 537 CK73GB1C104K CHIP C 0 10UF K C538 C92 0566 05 CHIP TAN 10UF 6 3WV C539 CK73GB1H103K CHIP C 0 010UF K C540 541 CK73GB1C104K CHIP C 0 10UF K C542 CC73GCH1H331J CHIP C 330PF J C543 CK73GB1H102K CHIP C 1000PF K C544 546 CK73GB1H562K CHIP C 5600PF K C547 CC73GCH1H030C CHIP C 3 0PF C C548 550 CK73GB1H272K CHIP C 2700PF K C551 CC73GCH1H151J CHIP C 150PF J C552 CC73GCH1H030C CHIP C 3 0PF C C553 CK73GB1H102K CHIP C 1000PF K C554 CK73GB1H122K CHIP C 1200PF K C555 C92 0566 05
59. Home channel SCN___7_ Channel down SCN___8_ Channel up SCN___9_ Key lock SCN___10 REALIGNMENT No Function Choices Display Remarks Horn alert KEY1__14 Selectable QT KEY1__15 M destination only 2 tone encode KEY1__16 select Monitor A KEY1__17 Default TK 762G Monitor B KEY1__18 Monitor C KEY1__19 Monitor D KEY1__20 Scan KEY1__22 TK 762G cannot be selected Scan del add KEY1__23 TK 762G cannot be selected Group down KEY1__24 TK 762G cannot be selected Group up KEY1__25 TK 762G cannot be selected 3 D A No function KEY2_OFF Default TK 760G Volume down KEY2__1_ Volume up KEY2__2_ TK 762G Talk around KEY2__3_ Auxiliary KEY2__4_ Dispaly character KEY2__5_ TK 762G cannot be selected Home channel KEY2__7_ Channel down KEY2__8_ Channel up KEY2__9_ Key lock KEY2__10 Public address KEY2__12 Horn alert KEY2__14 Selectable QT KEY2__15 M destination only TK 762G cannot be selected 2 tone encode KEY2__16 select Monitor A KEY2__17 Monitor B KEY2__18 Monitor C KEY2__19 Monitor D KEY2__20 Scan KEY2__22 TK 762G cannot be selected Scan del add KEY2__23 TK 762G cannot be selected Group down KEY2__24 TK 762G cannot be selected Group up KEY2__25 TK 762G cannot be selected 4 No function KEY3_OFF Default TK 760G Volume down KEY3__1_ Volume up KEY3__2_ TK 762G Talk around KEY3__3_ A
60. Hz 148 174 136 162 146 174 RF power 25W 25W 25W Type K K2 M KAP 1 PA HA unit KCT 20 Connection cable KES 3 External speaker KCT 19 Accessory connector cable KCT 18 Ignition sense cable Frequency range MHz 148 174 136 162 RF power 25W 25W Type K K2 See page 11 A personal computer IBM PC or compatible programming interface KPG 22 and programming software KPG 56D are required for programming The frequency and signalling option data are programmed for the transceiver Option Option Option Option Option See page 22 Installation the TX RX unit when used KAP 1 YES YES YES YES NO NO NO NO See page 21 See page 20 See page 23 See the KCT 20 instruction manual B62 0733 11 You can install either KCT 19 or KCT 20 to the TK 760G 762G transceiver 5 TK 760G 762G 1 Controls and Functions 1 1 TK 760G Front Panel IO Power switch Press to switch the transceiver ON or OFF LED indicator Lights red while transmitting Lights green while receiv ing Flashes orange while receiving a Code Squelch or Selective Call code or a 2 Tone code that matches the one set up in your transceiver keys These are PF Programmable Function keys Press each key to activate its auxiliary function The default settings are Volume Up and Volume Down Display See right keys These are PF Programmable Function keys
61. IO continues to scan amp receive calls while in PA mode Pressing PTT activates PA and will override an in coming call at anytime however no RADIO 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 1 and the PA function will turn off 1 TK 760G only Redial If you press this key when the group channel is dis played the last transmitted DTMF code will appear on the display Pressing the PTT switch at this time will transmit the displayed DTMF code Scan TK 760G only Press this key starts scanning Pressing this key stops scanning Scan del add TK 760G only This key switches the currently displayed channel be tween Delete and Add The Add channel contained in the scan sequence and Delete channel is not contained In the scan mode this key switches the channnel delete or add temporarily Talk around Press this key the transceiver uses the receive fre quency and the tone for transmission The operator can call the other party directory without repeater Press this key again the talk around function goes off Volume up down When the key is pressed the volume level is increased decreased and repeats if held for 200ms or longer None Sounds error operation beep and no action will occur Use this function when the transceiver is required to be more simple operated 4 Sca
62. IP R 10 J 1 16W R122 R92 1215 05 CHIP R 470 J 1 2W R123 RK73GB1J472J CHIP R 4 7K J 1 16W R124 RK73GB1J103J CHIP R 10K J 1 16W R125 RK73GB1J333J CHIP R 33K J 1 16W R126 RK73GB1J471J CHIP R 470 J 1 16W R127 RK73GB1J222J CHIP R 2 2K J 1 16W R128 RK73GB1J220J CHIP R 22 J 1 16W R129 RK73GB1J152J CHIP R 1 5K J 1 16W R130 RK73GB1J103J CHIP R 10K J 1 16W R131 RK73GB1J681J CHIP R 680 J 1 16W R132 RK73FB2A470J CHIP R 47 J 1 10W R133 136 R92 1252 05 CHIP R 0 OHM R137 RK73FB2A100J CHIP R 10 J 1 10W R138 RK73GB1J102J CHIP R 1 0K J 1 16W R139 RK73GB1J103J CHIP R 10K J 1 16W R140 RK73FB2A2R2J CHIP R 2 2 J 1 10W R141 RK73GB1J103J CHIP R 10K J 1 16W R142 RK73GB1J473J CHIP R 47K J 1 16W R144 R92 0685 05 CHIP R 22 J 1 2W R145 146 RK73GB1J473J CHIP R 47K J 1 16W R147 RK73GB1J102J CHIP R 1 0K J 1 16W K M R147 RK73GB1J152J CHIP R 1 5K J 1 16W K2 R148 RK73GB1J104J CHIP R 100K J 1 16W R149 RK73GB1J470J CHIP R 47 J 1 16W R150 RK73GB1J104J CHIP R 100K J 1 16W R151 RK73FB2A331J CHIP R 330 J 1 10W R152 R92 1252 05 CHIP R 0 OHM R153 R92 0670 05 CHIP R 0 OHM R154 RK73GB1J152J CHIP R 1 5K J 1 16W R155 RK73FB2A150J CHIP R 15 J 1 10W R157 RK73GB1J271J CHIP R 270 J 1 16W R159 RK73GB1J473J CHIP R 47K J 1 16W R160 RK73FB2A331J CHIP R 330 J 1 10W R161 RK73GB1J334J CHIP R 330K J 1 16W R162 RK73GB1J
63. M MIC mute input active high 3 EMG TXS EMG Foot switch input active low 3 CN7 TX RX Unit Pin No Name Function 1 PA LI Relay for PA function KAP 1 control H PA LI on L PA LI off 2 SPO Audio signal output to KAP 1 3 SPI Audio signal inpt from KAP 1 CN8 TX RX Unit Pin No Name Function 1 SP Audio signal output to internal external speaker 2 E Ground J501 Control Unit Pin No Name Function 1 MBL MIC backlight control 2 PSB 13 6V 3 GND Ground 4 PTT TXD PTT 5 ME MIC ground 6 MIC MIC signal input 7 HOOK RXD Hook detection 8 CM MIC data detection CN101 PLL VCO TX RX Unit Pin No Name Function 1 CV Control voltage input 2 MD Modulation input 3 8CL 8V input 4 E Ground 5 HT Signal output 6 RX ST Switched transmit input H Transmit 1 SmarTrunk OMNI mode 2 MDT mode 3 Emergency mode 81 TK 760G 762G SPECIFICATIONS GENERAL Frequency Range K 148 to 174MHz K2 136 to 162MHz M 146 to 174MHz Number of Channels TK 762G Maximum 8 channels TK 760G Maximum 128 channels Number of Groups TK 760G Maximum 128 groups Channel Spacing Wide 25 30kHz Narrow 12 5 15kHz PLL Channel Stepping 2 5 3 75 5 6 25 7 5kHz Operatin
64. N Firmware programming mode CH Power ON Two seconds Clone mode Power ON Two seconds Self programming mode A Power ON Two seconds 3 For the Panel Test Mode TK 760G only Setting method refer to ADJUSTMENT 3 1 For the Panel Tunning Mode Setting method refer to ADJUSTMENT 11 TK 760G 762G REALIGNMENT 5 4 Programming Software Description The KPG 56D programming disk is supplied in 3 1 2 disk format The software on this disk allows a user to program TK 760G 762G radio via a programming interface cable KPG 46 5 5 Programming With IBM PC If data is transferred to the transceiver from an IBM PC with the KPG 56D the destination data basic radio informa tion for each set can be modified Normally it is not neces sary to modify the destination data 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 for mat via the modular microphone jack 6 Firmware Programming Mode 6 1 Preface Flash memory is mounted on the TK 760G 762G This allows the TK 760G 762G to be upgraded when new fea tures are released in the future For details on how to ob tain the firmware contact Customer Service 6 2 Connection Procedure Connect the TK 760G 762G to the personal computer IBM PC or compatible with the interface cable KPG 46 Connection is the same
65. P MIC 1 2 ANT L18 BPF L11 13 15 BPF Q27 RF AMP Q13 IF AMP IC4 AF AMP Q15 MIX XF1 MCF D33 34 ANT SW IC8 1 2 divider IC6 D A Q7 X3 multiply X1 VCXO IC5 MIX IF DET 1st local OSC PLL DEO CF1 Narrow CF2 Wide APC TUNE CPU Q35 Wide Narrow SW 25 TK 760G 762G I Wide Narrow Changeover Circuit The W N port pin 4 of the shift register IC510 is used to switch between ceramic filters When the W N port is high Q4 turns on and the ceramic filter SW diode D8 D10 CF1 turns on to receive a Narrow signal At the same time Q35 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 Q3 turns on and the ceramic filter SW diode D8 D10 CF2 turns on to receive a Wide signal I AF Signal System The detection signal DEO from the TX RX unit goes to the audio processor IC508 of the control unit The signal passes through a filter in the audio processor to adjust the gain and is output to IC507 IC507 sums the AF signal and the DTMF signal BEEP signal and returns the resulting sig nal to the TX RX unit The signal AFO sent to the TX RX unit is input to the D A converter IC6 The AFO output level is adjusted by the D A converter The signal output from the D A converter is input to the audio power amplifier IC13 The AF signal from IC13 switches between the internal speaker and speaker jack J1 output
66. P C 22PF J K M C120 CC73GCH1H330J CHIP C 33PF J K2 C121 CK73GB1H102K CHIP C 1000PF K C122 123 CK73GB1C104K CHIP C 0 10UF K C124 CC73GCH1H101J CHIP C 100PF J C125 C92 0004 05 CHIP TAN 1 0UF 16WV C126 CC73GCH1H180J CHIP C 18PF J C127 CK73GB1H103K CHIP C 0 010UF K C128 C92 0543 05 CHIP TAN 3 3UF 10WV C129 CK73FF1C105Z CHIP C 1 0UF Z C130 CK73GB1H103K CHIP C 0 010UF K C131 133 CK73GB1H102K CHIP C 1000PF K C134 CK73FB1E104K CHIP C 0 10UF K C135 CC73GCH1H090D CHIP C 9 0PF D K M C135 CC73GCH1H120J CHIP C 12PF J K2 C136 CK73GB1C104K CHIP C 0 10UF K C137 CC73GCH1H101J CHIP C 100PF J C138 CK73FB1E104K CHIP C 0 10UF K C139 CK73GB1H102K CHIP C 1000PF K C141 C92 0719 05 ELECTRO 47UF 25WV C142 144 CK73GB1H102K CHIP C 1000PF K C146 149 CK73GB1H102K CHIP C 1000PF K C150 CK73FF1C105Z CHIP C 1 0UF Z C151 CK73GB1H102K CHIP C 1000PF K C152 CC73GCH1H030C CHIP C 3 0PF C K M C152 CC73GCH1H050C CHIP C 5 0PF C K2 C153 CC73GCH1H330J CHIP C 33PF J C154 CK73GB1H102K CHIP C 1000PF K C155 CC73GCH1H220J CHIP C 22PF J C156 157 CK73GB1H102K CHIP C 1000PF K C158 CC73GCH1H390J CHIP C 39PF J C159 CC73GCH1H180J CHIP C 18PF J C160 161 C92 0719 05 ELECTRO 47UF 25WV C162 CK73GB1H102K CHIP C 1000PF K C163 CC73GCH1H010B CHIP C 1 0PF B C164 CK73GB1H102K CHIP C 1000PF K C165 C92 0719 05 ELECTRO 47UF 25WV C166 CE04EW1
67. Press each key to activate its auxiliary function The default settings are Channel Up and Channel Down Microphone jack Insert the microphone plug into this connector MON A D A and SCN keys TK 760G MON and A keys TK 762G These are PF Programmable Function keys Press each key to activate its auxiliary function PTT Push to Talk switch Press this switch then speak into the microphone to call a station 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 1 2 TK 762G Front Panel 1 3 Microphone 1 2 3 4 5 6 7 8 1 4 Display I TK 760G Indicator Description Appears while using SmarTrunk Appears when the selected channel in busy Appears when QT DQT DTMF or 2 Tone decoding is deactivated by pressing the Monitor key Appears when you receive a Code Squelch Selective Call 2 Tone code Also appears when you transmit using Code Squelch or Selective Call Appears while scanning Appears when the AUX port is activated Appears when the selected channel is included in the scanning sequence Displays the selected channel number or name DTMF digits when entering digits confirming digits or making a call and mes sages received via Selective Call I TK 762G Indicator Description Appears when QT DQT DTMF or 2 Tone decoding is deactivated by pressing the Monitor key Appears when the AUX port is activated Displays the selected channel number OPERATING FEA
68. R42 RK73GB1J473J CHIP R 47K J 1 16W R43 RK73GB1J683J CHIP R 68K J 1 16W R44 RK73GB1J153J CHIP R 15K J 1 16W R46 RK73GB1J223J CHIP R 22K J 1 16W R47 RK73GB1J101J CHIP R 100 J 1 16W R48 RK73GB1J334J CHIP R 330K J 1 16W R49 RK73GB1J152J CHIP R 1 5K J 1 16W R50 RK73GB1J473J CHIP R 47K J 1 16W R51 53 RK73GB1J102J CHIP R 1 0K J 1 16W R54 R92 1252 05 CHIP R 0 OHM R55 RK73GB1J104J CHIP R 100K J 1 16W R56 RK73GB1J101J CHIP R 100 J 1 16W R57 RK73GB1J471J CHIP R 470 J 1 16W R58 RK73GB1J332J CHIP R 3 3K J 1 16W R59 RK73GB1J472J CHIP R 4 7K J 1 16W R60 RK73GB1J334J CHIP R 330K J 1 16W R61 RK73GB1J102J CHIP R 1 0K J 1 16W R62 RK73GB1J224J CHIP R 220K J 1 16W R63 RK73GB1J474J CHIP R 470K J 1 16W R64 RK73GB1J223J CHIP R 22K J 1 16W R65 RK73GB1J183J CHIP R 18K J 1 16W R66 RK73GB1J101J CHIP R 100 J 1 16W R67 RK73GB1J472J CHIP R 4 7K J 1 16W R68 RK73GB1J182J CHIP R 1 8K J 1 16W R69 R92 1252 05 CHIP R 0 OHM R70 RK73GB1J562J CHIP R 5 6K J 1 16W R71 RK73GB1J103J CHIP R 10K J 1 16W R72 R92 1252 05 CHIP R 0 OHM R73 RK73GB1J223J CHIP R 22K J 1 16W R75 RK73GB1J471J CHIP R 470 J 1 16W R76 RK73GB1J223J CHIP R 22K J 1 16W R77 RK73GB1J154J CHIP R 150K J 1 16W K M R77 RK73GB1J184J CHIP R 180K J 1 16W K2 R78 RK73GB1J104J CHIP R 100K J 1 16W R79 RK73GB1J681J CHIP R 680 J 1 16W R80 RK73GB1J47
69. R593 C590 C620 C615 C623 C504 C522 C553 R548 Q 502 R582 C555 C558 R578 C581 C587 C565 C566 R576 R614 R585 R613 CP 519 CP517 R590 CP533 CP535 CP526 CP524 R607 C576 C577 CP532 CP522 CP529 CP521 CP518 CP523 CP520 C516 C518 C502 R511 R527 X502 R515 Q501 C514 R550 R554 C530 R553 C534 C549 C550 C533 R581 C557 C545 R610 R523 R509 CN501 L503 R617 R620 R621 IC511 1 7 8 14 CP514 CP513 R506 R507 R568 R530 C519 R584 C571 R586 IC512 O G I C583 C575 D528 R598 R569 CP539 C547 C552 R565 R588 CP505 CP527 D508 C574 Q503 C572 L510 C633 C596 C594 C598 R608 C612 Q509 R605 C611 C582 C604 C608 C610 C606 C602 C600 C618 C621 C616 C597 C506 R513 C539 C568 C564 C567 C540 C563 R571 R574 Q506 C589 R591 C569 C573 R579 C551 R577 R587 R615 R606 R612 Q505 B C E R594 R516 C556 D523 CP516 C579 C515 R528 C585 R604 R580 C546 CP501 R603 CP502 CP510 CP509 CP508 CP503 CP512 CP511 CP504 D503 R558 C536 R546 R549 C535 C548 R557 C562 R573 C554 R570 C544 C561 R611 R522
70. ROUS SHEET UP DOWN 24 1A 1D G10 1223 14 FIBROUS SHEET SHIELD 25 1C 1F G13 1468 04 CUSHION DC CORD 26 1B 1E G13 1759 04 CUSHION SP 27 2C 2F G53 0796 04 PACKING PHONE JACK 28 2E G53 0889 04 PACKING DISPLAY UNIT 762 30 3G H10 6618 12 POLYSTYRENE FOAMED FIXTURE F 31 2H H10 6619 12 POLYSTYRENE FOAMED FIXTURE R 32 1G H12 1391 03 INNER PACKING CASE 33 1H 2H H25 0720 04 PROTECTION BAG 200X350 34 3H H52 1519 02 ITEM CARTON CASE 36 2G J19 1584 05 HOLDER ACC 37 2A 2D J21 8382 03 HARDWARE FIXTURE 38 1G J29 0627 23 BRACKET 40 2A K29 5343 02 KEY TOP 760 40 2D K29 5344 02 KEY TOP 762 A 2A 2D N33 2606 45 OVAL HEAD MACHINE SCREW B 2C 2F N67 3008 46 PAN HEAD SEMS SCREW W C 2B 2E N87 2606 46 BRAZIER HEAD TAPTITE SCREW D 2B 2E N87 2612 46 BRAZIER HEAD TAPTITE SCREW 42 2G N99 0395 05 SCREW SET 44 1B 1E T07 0368 05 SPEAKER 45 1G T91 0597 15 MICROPHONE K K2 TK 760G 762G D802 805 B30 2220 05 LED 2P YELLOW C801 803 CC73GCH1H101J CHIP C 100PF J C804 CK73GF1A105Z CHIP C 1 0UF Z C805 CK73GB1H102K CHIP C 1000PF K C806 807 CK73GB1H471K CHIP C 470PF K CN801 E40 6020 05 PIN ASSY L801 L92 0138 05 FERRITE CHIP R801 803 RK73GB1J103J CHIP R 10K J 1 16W R804 RK73GB1J473J CHIP R 47K J 1 16W R805 RK73GB1J474J CHIP R 470K J 1 16W R806 R92 1252 05 CHIP R 0 OHM R808 RK73GB1J392J CHIP R 3 9K J 1 16W R809 RK73FB2A270J CHIP R
71. SISTOR Q103 2SK508NV K52 FET Q104 105 2SC4081 TRANSISTOR Q106 2SC4226 R24 TRANSISTOR 42 TK 760G 762G EXPLODED VIEW TK 760G Parts with the exploded numbers larger than 700 are not supplied 1 2 A B C 1 24 3 24 2 40 37 7 11 6 17 22 22 23x2 27 24 9 25 14 12 21x2 44 26 IC400 16 701 702 Cx2 703 A C C Cx2 Dx11 B B A Ax2 703 TX RX unit X57 595 B 2 TX RX unit X57 595 A 2 Display unit X54 327 704 A M2 6 x 6 OC BLK N33 2606 45 B M3 x 8 N67 3008 46 C M2 6 x 6 Br Tap N87 2606 46 D M2 6 x 12 Br Tap N87 2612 46 43 TK 760G 762G EXPLODED VIEW TK 762G 1 2 D E F 1 24 3 24 2 40 37 11 6 7 28 17 22 22 23x2 27 24 9 25 14 12 21x2 44 26 IC400 16 701 702 Cx2 703 C C Cx2 Dx11 B B A A Ax2 703 TX RX unit X57 595 B 2 TX RX unit X57 595 A 2 Display unit X54 328 704 A M2 6 x 6 OC BLK N33 2606 45 B M3 x 8 N67 3008 46 C M2 6 x 6 Br Tap N87 2606 46 D M2 6 x 12 Br Tap N87 2612 46 Parts with the exploded numbers larger than 700 are not supplied 44 TK 760G 762G PACKING Parts with the exploded numbers larger than 700 are not supplied G H 1 2 3 5 Cap B09 0235 05 8 Instruction manual B62 1257 10 M B62 1258 00 K K2
72. Set test mode SSG Rear ANT TX RX L5 AF output maximum Wide CH CH1 Sig1 panel A 2 SSG output 53dBm 501 V AF VTVM ACC SSG MOD 3kHz Oscilloscope EXT SP AF 1 4V 4 2 SSG MOD OFF DVM TX RX IC5 9pin 0 7V DC A 2 2 Sensitivity 1 Set test mode SSG Rear ANT TX RX L11 RSSI voltage Wide Select SENS in tuning mode panel A 2 L13 maximum S E N S AF VTVM ACC L15 Adjust 120 K M Distortion EXT SP L18 Adjust 110 K2 meter SSG freq Oscilloscope 161 050MHz K AG 149 050MHz K2 160 050MHz M DVM TX RX RSSI SSG output 118dBm 0 28 V A 2 SSG MOD 3kHz AF output 1V 4 2 S ENS Front CH Adjust panel SSG freq 148 050MHz K 136 050MHz K2 146 050MHz M 3 S E N S _ Adjust SSG freq 173 950MHz K M 161 950MHz K2 Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item 1 PLL lock 1 Set test mode DVM TX RX CV PLL TC106 7 5V K M 0 1V voltage CH CH3 Sig1 Power meter A 2 7 0V K2 RX F conter TX 2 PTT ON Transmit TC109 7 5V RX 3 CH CH2 Sig1 Check 1 0V or more K M AUX ON talk around mode 0 9V or more K2 TX 4 PTT ON Transmit 0 5V or more K M 1 0V or more K2 Common Section Since the TK 762G cannot be tuned from the panel the FPU KPG 56D should be used for adjustment ADJUSTMEN
73. T Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item 50 TK 760G 762G 3 Squelch 3 1 Set test mode SSG Rear ANT Front CH Adjust to the Wide Select SQL3 in tuning mode panel panel squelch threshold S QL3 AF VTVM ACC point Adjust Distortion EXT SP SSG freq meter 148 050MHz K Oscilloscope 136 050MHz K2 AG 146 050MHz M SSG output 127dBm 0 1 V SSG MOD 3kHz Wide 1 5kHz Narrow 2 S Q L 3 Adjust SSG freq 161 050MHz K 149 050MHz K2 160 050MHz M 3 S Q L 3 _ Adjust SSG freq 173 950MHz K M 161 950MHz K2 Narrow 4 SQL3 Adjust SSG freq 161 050MHz K 149 050MHz K2 160 050MHz M 4 Squelch 9 1 Set test mode Wide Select SQL9 in tuning mode S QL9 Adjust SSG freq 148 050MHz K 136 050MHz K2 146 050MHz M SSG output 114dBm 0 44 V SSG MOD 3kHz Wide 1 5kHz Narrow 2 S Q L 9 Adjust SSG freq 161 050MHz K 149 050MHz K2 160 050MHz M 3 S Q L 9 _ Adjust SSG freq 173 950MHz K M 161 950MHz K2 Narrow 4 SQL9 Adjust SSG freq 161 050MHz K 149 050MHz K2 160 050MHz M 5 Squelch 1 Set test mode Check Squelch must be opened check CH CH1 Sig1 CH3 Sig1 Wide Narrow SSG output 118dBm 0 28 V 2 SSG output OFF Sque
74. TA7808S IC REGULATOR IC13 LA4422 IC AF POWER AMP 5 8W IC14 TC4013BF N IC MEMORY IC15 TA75S01F IC OP AMP IC400 2C 2F M67741H 32 IC POWER MODULE K M IC400 2C 2F M67741L 35 IC POWER MODULE K2 IC501 AT29C020 90TI IC IC502 30622M4102GP MPU IC503 RH5VL42C IC REGULATOR IC505 AT2408N10SI2 5 IC 8kbit SERIAL EEPROM IC507 NJM2904V IC APC IC508 TC35453F IC AUDIO PROCESSOR IC509 BU4066BCFV IC ANALOG SWITCH X4 IC510 BU4094BCFV IC 8bit SHIFT STORE REGISTER IC511 LC73872M IC DTMF RECEIVER IC512 S 81350HG KD IC VOLTAGE REGULATOR IC513 TA75W558FU IC OP AMP X2 IC514 TC75W51FU IC OP AMP X2 Q1 DTD114EK DIGITAL TRANSISTOR Q2 3 DTA114EKA DIGITAL TRANSISTOR Q4 6 DTC114EKA DIGITAL TRANSISTOR Q7 2SC4649 N P TRANSISTOR Q8 2SC2412K TRANSISTOR Q9 2SC4215 Y TRANSISTOR Q10 2SC2412K TRANSISTOR Q11 2SA1832 GR TRANSISTOR Q12 2SC4738 GR TRANSISTOR Q13 14 2SC4649 N P TRANSISTOR Q15 3SK228 FET Q16 DTC114EKA DIGITAL TRANSISTOR Q17 DTC363EU DIGITAL TRANSISTOR Q18 2SA1745 6 7 TRANSISTOR Q19 DTC114EKA DIGITAL TRANSISTOR Q20 DTA114EKA DIGITAL TRANSISTOR Q21 DTC114EKA DIGITAL TRANSISTOR Q22 2SC3357 TRANSISTOR Q23 2SA1641 S T TRANSISTOR Q24 DTA114EKA DIGITAL TRANSISTOR Q25 2SC2954 TRANSISTOR Q26 DTA114EKA DIGITAL TRANSISTOR Q27 3SK241 R FET Q28 2SB1132 Q R TRANSISTOR Q29 DTC114EKA DIGITAL TRANSISTOR Q31 2SC2412K TRANSISTOR Q32
75. TK 760G TK 760G TK 260G TK 270G K M K M K2 K2 M2 TK 270G TK 270G TK 762G TK 762G TK 762G TK 270G Master K M K M K2 K2 TK 760G YES NO YES NO NO NO NO K TK 760G NO YES NO YES NO NO NO M TK 760G NO NO NO NO YES YES NO K2 REALIGNMENT Cloning cable E30 3382 05 Fig 2 MBL PSB GND PTT TXD ME MIC HOOK RXD CM GND REMOTE TXD PTT RXD 8 1 1 8 Clone cable E30 3411 05 TK 760G TK 260G 270G 8 Self Programming Mode TK 760G only Write mode for frequency data and signalling etc Mainly used by the person maintaining the user equipment 8 1 Enter to the Self Programming Mode Remove D507 Figure 3 from the TX RX unit Hold down the A key and turn the power switch on When enter the self programming mode SELF is displayed The mode changes autoically to Model Select Mode in about one sec ond and set up radio type radio band amp channel type and frequency version Notes To start the Firmware Programmer from KPG 56D the FPRO path must be set up by the KPG 56D setup This mode cannot be entered if the Firmware program ming mode is set to Disable in the Programming soft ware KPG 56D When programming the firmware it is recommend to copy the data from the floppy disk to your hard disk be fore you 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
76. TURES 6 TK 760G 762G 1 5 Rear panel Antenna connector External speaker jack Power input connector 1 6 Programmable Auxiliary Functions The following keys can be programmed with the func tions listed below TK 760G left side right side MON A D A and SCN TK 762G left side right side MON and A AUX Channel Down Channel Up Display Character TK 760G only Emergency 1 Group Down TK 760G only Group Up TK 760G only Home Channel Horn Alert Key Lock Monitor A Monitor Unmute Momentary Monitor B Monitor Unmute Toggle Monitor C Carrier Squelch Momentary Monitor D Carrier Squelch Toggle None No function Operator Selectable Tone 2 TK 760G only Public Address Redial Scan TK 760G only Scan Del Add TK 760G only Selectable QT 3 TK 760G only Talk Around Volume Up Volume Down 2 Tone Encode Select 4 1 This function can be used only with a foot switch 2 This function is available for K market models only 3 This function is available for M market models only 4 The code for the TK 762G transceiver is not selectable You can transmit only one 2 Tone code which is pre programmed in the transceiver 2 Operation Features The TK 760G 762G is a VHF FM radio designed to oper ate in conventional format The programmable features are summarized
77. ___7_ Channel down CUP___8_ Channel up CUP___9_ Default Key lock CUP___10 18 TK 760G 762G No Function Choices Display Remarks 15 Minimum 0 31 1 step MVOL_12_ volume 16 Off hook Enable H_D__ENA decode Disable H_D__DIS Default 17 Off hook Enable H_H__ENA horn alert Disable H_H__DIS Default 18 Time out OFF 15 600 TOT_180_ Default 180s timer 15s step 19 TOT OFF 1 10 TOTP_OFF Cannot be set when pre alert 1s step TOT is off time Default Off 20 TOT OFF 1 60 TOTK_OFF Cannot be set when rekey 1s step TOT is off time Default Off 21 TOT OFF 1 15 TOTS_OFF Cannot be set when reset 1s step TOT is off time 22 Clear to YES CTT_YES_ transpond NO CTT_NO__ Default BCL for transpond 23 Signalling OR SIG__OR_ Default AND SIG__AND 24 Squelch 0 9 1 step SQL__5__ Default 5 level Scan 25 Priority None PRI_NONE Default None Fixed PRI_FIX_ Selected PRI_SEL_ 26 Look 0 5 5 0 LBA__500 Default 500ms back 0 05s Cannot be set when time A Priority none 27 Look 0 5 5 0 LBB_2000 Default 2000ms back 0 05s Cannot be set when time B Priority none 28 Revert Selected REV_SEL_ channel Last called REV_L C_ Default Last used REV_L U_ Selected Talk back REV_S T_ Priority REV_PRI_ Priority Talk back REV_P T_ 29 Dropout 0 300 1s DODT___3 Default 3s
78. al mode when busy channel lock out is functioning You can select yes or no for the optional feature s warning tone I Group call tone Sounds when a group call with the correct DTMF 2 tone option signalling is received repeats 7 times You can se lect yes or no for the optional feature s warning tone I Individual call tone Sounds when an individual call with the correct DTMF 2 tone option signalling is received You can select yes or no for the optional feature s warning tone I 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 it is turned off You can select yes or no for the optional feature s control tone I 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 You can select yes or no for the optional feature s control tone I Key input error tone Sounds when a key is pressed but that key cannot be used You can select yes or no for the optional feature s warning tone I Roll over tone Sounds in Conventional format at the smallest group channel You can select yes or no for the optional feature s control tone I 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 I Pre alert tone Sounds prior to
79. andinavia K USA P Canada Y PX Far East Hawaii T England E Europe Y AAFES Europe X Australia M Other Areas TK 760G 762G DISPLAY UNIT X54 3270 10 TK 760G DISPLAY UNIT X54 3280 10 TK 762G New Desti parts nation Ref No Address Parts No Description New Desti parts nation Ref No Address Parts No Description 1 1B 1E A01 2165 13 CABINET UPPER 2 2A 2D A01 2166 13 CABINET LOWER 3 2A A62 0642 03 PANEL ASSY 760 3 2D A62 0731 03 PANEL ASSY 762 5 1G B09 0235 05 CAP 6 2B B11 1226 03 ILLUMINATION GUIDE 760 6 2E B11 1230 03 ILLUMINATION GUIDE 762 7 2A B38 0824 05 LCD 760 7 2E B38 0825 05 LCD 762 8 2G B62 1257 10 INSTRUCTION MANUAL M 8 2G B62 1258 00 INSTRUCTION MANUAL K K2 9 1C B72 1690 04 MODEL NAME PLATE 760K 9 1C B72 1691 04 MODEL NAME PLATE 760M 9 1F B72 1694 04 MODEL NAME PLATE 762K 9 1C B72 1742 04 MODEL NAME PLATE 760K2 9 1F B72 1744 04 MODEL NAME PLATE 762K2 11 2B E29 1179 04 INTER CONNECTOR 760 11 2E E29 1183 04 INTER CONNECTOR 762 12 1C E30 2145 15 ANTENNA CABLE 13 1G E30 3339 05 DC CORD ACC 14 1C 1F E30 3340 05 DC CORD RADIO E30 3404 05 TRUNK CABLE 16 1C 1F E37 0790 15 LEAD WIRE WITH CONNECTOR SP 17 2B 2E E37 0815 05 FLAT CABLE 19 1G F51 0016 05 FUSE 6 30 10A 21 1C 1F G02 0791 04 FLAT SPRING AF APC 22 1B 1E G10 1221 04 FIBROUS SHEET SIDE 23 1B 1E G10 1222 14 FIB
80. ar Data clear 16 TK 760G 762G No Function Choices Display Remarks Horn alert KEY3__14 Selectable QT KEY3__15 M destination only TK 762G cannot be selected 2 tone encode KEY3__16 select Monitor A KEY3__17 Monitor B KEY3__18 Monitor C KEY3__19 Monitor D KEY3__20 Scan KEY3__22 TK 762G cannot be selected Scan del add KEY3__23 TK 762G cannot be selected Group down KEY3__24 TK 762G cannot be selected Group up KEY3__25 TK 762G cannot be selected 5 No function KEY4_OFF Default TK 760G Volume down KEY4__1_ A Volume up KEY4__2_ TK 762G Talk around KEY4__3_ Auxiliary KEY4__4_ Dispaly character KEY4__5_ TK 762G cannot be selected Home channel KEY4__7_ Channel down KEY4__8_ Channel up KEY4__9_ Key lock KEY4__10 Public address KEY4__12 Horn alert KEY4__14 Selectable QT KEY4__15 M destination only TK 762G cannot be selected 2 tone encode KEY4__16 select Monitor A KEY4__17 Monitor B KEY4__18 Monitor C KEY4__19 Monitor D KEY4__20 Scan KEY4__22 TK 762G cannot be selected Scan del add KEY4__23 TK 762G cannot be selected Group down KEY4__24 TK 762G cannot be selected Group up KEY4__25 TK 762G cannot be selected 6 SCN No function SCN__OFF Default TK 760G Volume down SCN___1_ only Volume up SCN___2_ Talk around SCN___3_ Auxiliary SCN___4_ Dispaly character SCN___5_
81. as in the PC Mode 6 3 Programming 1 Start up the programming software KPG 56D select firmware program in the Program item and press the Return key on your personal computer This starts up the firmware programmer 2 The top screen is displayed Press any key to advance to the next screen 3 Set the communications speed normally 57600 bps and communications port in the Setup item 4 Set the firmware to be updated by File select F1 5 Turn the TK 760G 762G Power ON with the CH switch held down Hold the switch down for two sec onds until the display changes to PROG 576 the BUSY TX LED lights orange When PROG 576 appears re lease your finger from the switch 6 Check the connection between the TK 760G 762G and the personal computer and make sure that the TK 760G 762G is in Program mode 7 Press F10 on the personal computer A window opens on the display to indicate the writing progress When the TK 760G 762G starts to receive data the BUSY TX LED lights green 8 If writing ends successfully the LED on the TK 760G 762G goes off and the checksum is displayed Since the TK 762G does not have a display check the checksum with the FPU KPG 56D 9 If you want to continue programming other TK 760G 762G repeat steps 5 to 8 4 Check Sum Executing this function TUNING apears on the display of the TK 760G while calculation the check sum When the calculation is completed the display returns to norma
82. band IC inter register select 1 14 Q5 LED1 Green LED LED lights H I Terminal function TX RX unit IC9 Pin No Port Name Function 4 Q1 HNC Horn alert control Horn alert on H 5 Q2 8RC 8R control RX H 6 Q3 8TC 8T control TX H 7 Q4 SPMUTE Speaker mute control Mute on H 11 Q8 AUX6 Option board port 6 AUX6 AUX on H 12 Q7 AUX5 Option board port 5 AUX5 13 Q6 PA LI PA LIGHT control PA LIGHT on H 14 Q5 RX TX RX VCO switch RX L LCD Driver LC75833W Display Unit IC801 TK 762G only I Block diagram Common driver Segment driver amp latch Clock generator Shift register Address detector COM3 COM2 COM1 S35 S34 S9 S8 P8 S2 P2 S1 P1 INH OSC VDD VLCD VLCD1 VLCD2 VSS DI CL CE I Terminal function Pin No Name I O Function 1 8 S1 P1 S8 P8 O Segment output for displaying data 9 35 S9 S35 transferred from serial data 36 38 COM1 COM3 O Common driver output Frame frequency fo fosc 384 Hz 39 VDD Power supply for logic section 2 7V 6 0V 40 VLCD Power supply for LCD driver section 2 7V 6 0V 41 VLCD1 I Apply 2 3 the LCD drive bias voltage from outside If 1 2 the bias is applied connect to VLCD2 42 VCLD2 I Apply 1 3 the LCD drive bias voltage from outside If 1 2 the bias is applied connect to VLCD1 43 VSS GND 44 OSC I O Oscillation terminal 45 INH
83. ctive high 2 MM I MIC mute input active high 3 EMG TXS I EMG Foot switch input 3 active low CN7 1 PA LI O Relay for PA function KAP 1 control O PA LI ON High PA LI OFF Low 2 SPO O Audio signal output to KAP 1 3 SPI I Audio signal input from KAP 1 CN8 1 SP O Audio signal output to internal external speaker 2 E Ground 1 SmarTrunk OMNI mode 2 MDT mode 3 Emergency mode 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 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 3 1 Connecting the KCT 18 to the Transceiver 1 Install the KCT 19 in the transceiver See the KCT 19 section 2 Insert the KCT 18 lead terminal into pin 3 of the square plug supplied with the KCT 19 then insert the square plug into the KCT 19 connector 2 1 3 1 3 6 13 15 KCT 18 KCT 19 Contact 1 2 3 Fig 3 22 TK 760G 762G INSTALLATION 3 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 0 R134 and R135 of the TX RX unit A 2 as sh
84. delay time 30 Dwell time 0 300 1s DWL____3 Default 3s 31 Off hook Enable H_S__ENA scan Disable H_S__DIS Default REALIGNMENT No Function Choices Display Remarks Key lock VUP___10 Public address VUP___12 Horn alert VUP___14 Selectable QT VUP___15 M destination only TK 762G cannot be selected 2 tone encode VUP___16 select Monitor A VUP___17 Monitor B VUP___18 Monitor C VUP___19 Monitor D VUP___20 Scan VUP___22 TK 762G cannot be selected Scan del add VUP___23 TK 762G cannot be selected Group down VUP___24 TK 762G cannot be selected Group up VUP___25 TK 762G cannot be selected 11 VOL No function VDN__OFF Volume Volume down VDN___1_ Default down Volume up VDN___2_ Talk around VDN___3_ Auxiliary VDN___4_ Dispaly character VDN___5_ TK 762G cannot be selected Home channel VDN___7_ Channel down VDN___8_ Channel up VDN___9_ Key lock VDN___10 Public address VDN___12 Horn alert VDN___14 Selectable QT VDN___15 M destination only TK 762G cannot be selected 2 tone encode VDN___16 select Monitor A VDN___17 Monitor B VDN___18 Monitor C VDN___19 Monitor D VDN___20 Scan VDN___22 TK 762G cannot be selected Scan del add VDN___23 TK 762G cannot be selected Group down VDN___24 TK 762G cannot be selected Group up VDN___25 TK 762G cannot be selected Optional feature 12 Power YES NO PONT_YES Defau
85. dot indicates 50Hz digit On 5 Off 0 2 RX Off Off QT DQT signalling QT 67 0 250 3Hz QT__67 0_ switching EIA mode QT_250 3_ A Mode switching QT 67 0 250 3Hz QT__67 0 SCN Normal 0 1Hz step mode QT_250 3 Inverse switching DQT 000 777 DQT000N Normal DQT777N 1 step mode DQT 023 754 DQT023N_ Normal DQT754N_ Standard table mode DQT 000 777 DQT000I Inverse DQT777I 1 step mode DQT 023 754 DQT023I_ Inverse DQT754I_ Standard table mode REALIGNMENT IC502 TX RX unit B 2 Foil side 50 51 IC505 1 8 4 5 D507 D505 Fig 3 Note This mode self programming mode cannot be set when it has been disabled with the FPU D A D A D A MON CH Radio type Channel set mode Function set mode Self programming mode Portable Mobile Radio band amp channel type VHF 8CH VHF 128CH UHF 8CH UHF 128CH Frequency version CH CH CH CH VHF F1 VHF F2 UHF F1 UHF F3 CH CH CH CH UHF F4 CH Cannot be set when portable is select Cannot be set when mobile is select 8 2 Model Select Mode Flow chart Note If the radio type of TK 760G was temporally set to Por table for the cloning purposes UNPROG is displayed at User mode when t
86. drive block Q22 and Q25 The amplified signal passes through the transmission reception selection diode D16 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 DESCRIPTION 27 TK 760G 762G I APC Circuit The automatic transmission power control APC circuit detects part of a power module output with a diode D35 D36 and applies a voltage to IC15 IC15 compares the APC control voltage PC generated by the D A converter IC6 and DC amplifier IC7 with the detection output voltage to control Q31 and Q32 generates DB voltage from B voltage and stabilizes transmission output The APC circuit is configured to protect over current 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 I Memory Circuit The transceiver has a 2M bit 256k x 8 flash ROM IC501 and an 8k bit EEPROM IC505 The flash ROM con tains firmware programs data and user data which is pro grammed with the FPU The EEPROM contains adjustment data The CPU IC502 controls the flash ROM through an external address bus and an external data bus The CPU controls the EEPROM through two serial data lines Control Circuit The CPU carries out the following tasks 1 Controls the shift register IC9 IC510 AF MUTE WIDE NARROW T R KEY outputs 2 Adjust
87. ector cable KCT 19 on the rear of the radio is 13 6V 1A Insert a 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 cap B09 0235 05 3 PRE INSTALLATION CHECKOUT 3 1 Introduction Each radio is adjusted and tested before shipment How ever it is recommended that receiver and transmitter opera tion be checked for proper operation before installation 3 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 Signalling equipment operation should be verified 4 PLANNING THE INSTALLATION 4 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 4 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 4 3 Radio The universal mount bracket allow
88. eference D22 Temperature Drive compensation D23 RF BPF tuning D24 Voltage reference D25 Surge absorption Ref No Use Function Operation Condition D27 Reverse current prevention D28 RF BPF tuning D29 Reverse current prevention D30 31 RF BPF tuning D33 34 ANT switch D35 36 APC voltage detect D39 Voltage reference Power protection D40 Charge DEO D41 Voltage drop Charge pump D501 Reverse current KOUT 0 prevention D502 Reverse current KOUT 1 prevention D503 Reverse current KOUT 2 prevention D504 Reverse current KOUT 0 prevention D505 Reverse current KOUT 1 prevention D506 Voltage discharger When powering down D507 Reverse current KOUT 2 prevention D508 Limiter MIC D509 514 Key backlight Active while MBL is H D521 Busy TX LED Lights green while busy red while TX D523 OR gate MIC mute MM MM2 D524 Surge absorption HOOK RXD D525 Surge absorption PTT TXD D526 Current protection D527 Surge absorption CM D528 Surge absorption MBL D529 Limiter QT DQT decode limiter IC1 Sum amplifier DI TO mixer IC2 DC amplifier FC TCXO control IC3 PLL synthesizer Reference 16 8MHz PLL lock LD H IC4 Amplifier DEO IC5 FM demodulation Quadrature detector 2nd mixer OSC IF amplifier RSSI IC6 D A converter IC7 DC amplifier PC TV control IC8 Prescaler 1 2 prescaler 32 TK 760G 7
89. es of commercial grade com munications equipment It contains all required service in formation for the equipment and is current as of the publica tion date 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 All equipment should be properly grounded before power up for safe operation This equipment should be serviced by a qualified techni cian only 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 LICENSING REQUIREMENTS Federal regulations require a station l
90. f data is completed the master displays END and the slave automatically operates in the User mode The slave can then be operated by the same program as the master 5 The other slave can be continuously cloned When the SCN key on the master is pressed while the master dis plays END the master displays CLONE Carry out the operation in step 2 to 4 13 TK 760G 762G 9 Channel Setting Mode Each channel can be setup in its action mode by using the panel keys Pressing MON when SELF is diaplyed sets channel setting mode Select an item set using then change the selection with the CH The data displayed using D A is stored in the memory and then proceeds to the next item Pressing proceeds to the next item without storing it in the memory Press MON to set the display to SELF and return to reset default status The setup items fro channel setting mode are listed be low No Function Choices Display Remarks Select 1 128 __1 __1 _ Group selection channel __1 128 _ Channel selection Select 1 128 __1 __1_ change group 128 __1_ 1 RX Step STP__250 Display when an item frequency 2 5kHz 1MHz STP_1000 is selected or when a step is changed about 0 5 seconds A Step change 2 5 5 0 6 25 7 5kHz 1MHz step Blank Frequency on 100 0000 R 100 0000 blank switching 550 0000MHz The rightmost
91. ftware KPG 56D 1 Specify a priority channel as a fixed priority channel 2 Make a selected channel a priority channel I 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 I Revert channel The revert channel is used to transmit during scanning and set by the programming software KPG 56D 1 Priority The transceiver reverts to the priority channel 2 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 3 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 5 Last used channel The transceiver reverts to the last used transmitted cha
92. g Voltage 13 6V DC 15 Current Drain Less than 0 4A on standby Less than 1 0A on receive Less than 8 0A on transmit Operating Temperature Range 30 C to 60 C 22 F to 140 F Dimensions amp Weight 140 5 33 64 W x 40 1 37 64 H x 145 5 45 64 D mm inch 940g 2 07 lbs Channel Frequency Spread K 26MHz M 28MHz RECEIVER Measurements made per EIA standard EIA TIA 204 D Sensitivity 12dB SINAD Wide 0 25 V Narrow 0 33 V Selectivity Wide 85dB Narrow 75dB Intermodulation Wide 75dB Narrow 65dB Spurious Responce 90dB Audio Power Output 4 0W Frequency Stability 2 5ppm TRANSMITTER Measurements made per EIA standard EIA 152 C RF Power Output 25W Spurious and Harmonics 70dB Modulation Wide 16K0F3E Narrow 11K0F3E FM Noise Wide 50dB Narrow 45dB Audio Distortion Less than 3 Frequency Stability 2 5ppm KENWOOD CORPORATION 14 6 Dogenzaka 1 chome Shibuya ku Tok
93. ght L SQL9_XXX Squelch Tight Narrow A S Q L 9_XXX Squelch Tight C S Q L 9 _ XXX Squelch Tight H I Tuning Mode ADJUSTMENT 47 TK 760G 762G Test Equipment Required for Alignment Test Equipment Major Specifications 1 Standard Signal Generator Frequency Range 136 to 174MHz SSG Modulation Frequency modulation and external modulation Output 127dBm 0 1 V to greater than 7dBm 100mV 2 Power Meter Input Impedance 50 Operation Frequency 136 to 174MHz or more Measurement Capability Vicinity of 100W 3 Deviation Meter Frequency Range 136 to 174MHz 4 Digital Volt Meter Measuring Range 1 to 20V DC DVM Accuracy High input impedance for minimum circuit loading 5 Oscilloscope DC through 30MHz 6 High Sensitivity Frequency Range 10Hz to 1000MHz Frequency Counter Frequency Stability 0 2ppm or less 7 Ammeter 20A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 1mV to 10V 9 Audio Generator AG Frequency Range 20Hz to 20kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 4 Dummy Load Approx 4 10W or more 12 Regulated Power Supply 13 6V approx 20A adjustable from 9 to 20V Useful if ammeter requipped ADJUSTMENT Lead wire MIC Shield wire 1 8 Tuning cable E30 3383 05 Adapter cab
94. he DC cord bushing from the chassis 2 Remove the pad as shown in Figure 1 3 Insert the KCT 19 cable into the chassis The wire harness band must be inside the chassis 4 Replace the DC cord bushing 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 1 2 1 3 13 15 12 Crimp terminal E23 0613 05 B E C B D CN8 CN5 D E B C A Contact Square plug E09 1571 05 3 4 6 7 8 9 5 CN4 CN3 1 2 Fig 1 Fig 2 INSTALLATION 1 2 KCT 19 Accessory Port Function No No Name Function Note A B C D E 1 D 2 RXD Serial control data input 1 DTC Data channel control 2 External hook input 2 D 5 ME External microphone ground 3 D 3 IGN Ignition sense input 4 D 1 DEO Receiver detector output 5 D 6 MI External microphone input 6 B 2 E Ground 7 B 3 SB Switched B DC 13 6V output Maximum 1A 8 D 7 PTT External PTT input 2 9 D 4 DI Data modulation input 10 B 1 HOR Horn alert call output 11 D 8 SQ Squelch detect output Busy H 2 12 C 1 SP Speaker audio output 13 E 1 AM Speaker mute input active high 14 E 2 MM MIC mute input active high 15 E 3 EMG Foot switch input active
95. he TK 760G is turned on In this case please set the radio type back to Mobile at model select mode menu The silk screen of D505 and D507 is reversed on the TX RX unit PCB Part No J72 0677 02 this silk screen will be corrected from the next version J72 0677 12 14 TK 760G 762G REALIGNMENT No Function Choices Display Remarks 9 RF High power PWR_H___ Default power Low power PWR_L___ 10 Wide Wide WIDE____ Narrow Narrow NARROW__ 11 Scan DELETE SCAN_DEL Not used for 8ch Delete Add ADD SCAN_ADD Default 12 Priority No P CH_NO__ Not used when Scan channel Yes P CH_YES_ priority is not fixed 13 Home No H CH_NO__ Not used when home channel Yes H CH_YES_ channel is not set in key assignment 14 Compander No COMP_NO_ Not used when wide is selected Yes COMP_YES 15 PTT ID OFF P ID_OFF_ Begin of TX P ID_1___ End of TX P ID_2___ Both P ID_3___ 16 Begin 000 _BOT_ID_ Not valid if Dial ID of TX ID 9999999999999999 disable and PTT ID off or EOT is set Display when an item is selected about 0 5 seconds 12345678 Display of the current setting If it is 8 or more digits scroll it 987 Display when a code is input Input it with DTMF key Blank Data clear 17 End of 000 _EOT_ID_ Not valid of Dial ID TX ID 9999999999999999 Idisable and PTT ID off or BOT is set Display
96. hin IC5 to create a 450kHz second IF signal The second IF signal is then fed through a 450kHz ceramic filter Narrow CF1 Wide CF2 to further eliminate unwanted signals before it si amplified and FM detected in IC5 Item Rating Nominal center frequency 49 95MHz Pass bandwidth 5 0kHz or more at 3dB 35dB stop bandwidth 20 0kHz or less Ripple 1 0dB or less Insertion loss 5 0dB or less Guaranteed attenuation 80dB or more at fo 1MHz Spurious 40dB or more within fo 1MHz Terminal impedance 350 5 5 5pF 0 5pF Table 1 Crystal filter L71 0551 15 XF1 Item Rating Nominal center frequency 450kHz 6dB bandwidth 4 5kHz or more 50dB bandwidth 10 0kHz or less Ripple 2 0dB or less Insertion loss 6 0dB or less Guaranteed attenuation 55 0dB or more within fo 100kHz Terminal impedance 2 0k Table 2 Ceramic filter L71 0959 05 CF1 Item Rating Nominal center frequency 450kHz 6dB bandwidth 6 0kHz or more 50dB bandwidth 12 5kHz or less Ripple 3 0dB or less Insertion loss 6 0dB or less Guaranteed attenuation 35 0dB or more within fo 100kHz Terminal impedance 2 0k Table 3 Ceramic filter L72 0973 05 CF2 Fig 2 Receiver system CIRCUIT DESCRIPTION ANT SW RF AMP 1st MIX AF AMP TCXO MIC AMP X3 multiply TX AMP PA AMP CF 450kHz MCF 49 95MHz IF SYSTEM PLL VCO 16 8MHz 50 4MHz ANT RX TX S
97. icense for each ra dio installation mobile or base be obtained by the equip ment owner The licensee is responsible for ensuring trans mitter power frequency and deviation are within the limits permitted by the station license Transmitter adjustments may be performed only by a li censed technician holding an FCC first second or general class commercial radiotelephone operator s license There is no license required to install or operate the radio CONTENTS GENERAL 2 SYSTEM SET UP 4 OPERATING FEATURES 5 REALIGNMENT 10 INSTALLATION 20 CIRCUIT DESCRIPTION 24 SEMICONDUCTOR DATA 29 DESCRIPTION OF COMPONENTS 31 PARTS LIST 33 EXPLODED VIEW 42 PACKING 44 ADJUSTMENT 45 PC BOARD VIEWS DISPLAY UNIT X54 3270 10 TK 760G 54 DISPLAY UNIT X54 3280 10 TK 762G 55 PLL VCO X58 4670 XX
98. ion D509 514 B30 2050 05 LED D521 B30 2151 05 LED RED GRN C1 19 CK73GB1H102K CHIP C 1000PF K C20 C92 0507 05 CHIP TAN 4 7UF 6 3WV C21 CK73GB1H102K CHIP C 1000PF K C22 CK73GB1C104K CHIP C 0 10UF K C23 24 C92 0507 05 CHIP TAN 4 7UF 6 3WV C26 CK73GB1H102K CHIP C 1000PF K C29 C92 0507 05 CHIP TAN 4 7UF 6 3WV C30 CC73GCH1H050C CHIP C 5 0PF C C31 CK73GB1H102K CHIP C 1000PF K C32 C92 0662 05 CHIP TAN 15UF 6 3WV C33 CC73GCH1H220J CHIP C 22PF J C35 CK73GB1C104K CHIP C 0 10UF K C36 CK73GB1H102K CHIP C 1000PF K C37 CK73FB1C334K CHIP C 0 33UF K C40 41 CK73GB1H103K CHIP C 0 010UF K C43 C92 0507 05 CHIP TAN 4 7UF 6 3WV C44 CK73GB1H331K CHIP C 330PF K C45 CK73GB1H102K CHIP C 1000PF K C46 CK73GB1H103K CHIP C 0 010UF K C47 C92 0561 05 CHIP ELE 22UF 16WV C49 CK73GB1H102K CHIP C 1000PF K C50 CC73GCH1H220J CHIP C 22PF J C51 CK73GB1C104K CHIP C 0 10UF K C52 CC73GCH1H680J CHIP C 68PF J C53 CK73GB1C104K CHIP C 0 10UF K C54 CK73GB1H103K CHIP C 0 010UF K C56 CC73GCH1H220J CHIP C 22PF J C58 CK73GB1E223K CHIP C 0 022UF K C60 61 CK73GB1H102K CHIP C 1000PF K C62 CC73GCH1H101J CHIP C 100PF J C63 CK73GB1C104K CHIP C 0 10UF K C64 CK73GB1H103K CHIP C 0 010UF K C66 67 CK73GB1H102K CHIP C 1000PF K C69 CK73GB1E223K CHIP C 0 022UF K C70 C92 0507 05 CHIP TAN 4 7UF 6 3WV C72 C92 0507 05 CHIP TAN 4 7UF 6 3WV C74
99. just 12 TONE 1 Set test mode Front CH 3 0kHz 0 1kHz Wide Narrow deviation Select TONE in tuning mode panel Wide Deviation meter filter LPF 15kHz HPF OFF PTT ON Adjust Narrow 2 TONE 1 5kHz PTT ON Adjust 54 TK 760G 762G A C E B D 1 3 5 7 2 4 6 TK 760G 762G PC BOARD VIEWS DISPLAY UNIT X54 3270 10 TK 760G Component side view DISPLAY UNIT X54 3270 10 TK 760G Foil side view D804 D803 D805 D802 J72 0683 02 CN801 MBL 5C CE CL E E SB DI 1 2 7 8 C801 C802 C803 C804 C805 C806 C807 D801 D808 IC801 B C E Q801 R801 R802 R803 R804 R805 R806 R808 R809 L801 1 16 17 32 48 49 64 33 D804 D803 D805 D802 J72 0683 02 CN801 1 MBL 5C CE CL E E SB DI 2 7 8 C801 C802 C803 C804 C805 C806 C807 D801 D808 IC801 B C E Q801 R801 R802 R803 R804 R805 R806 R808 R809 L801 1 16 17 32 48 49 64 33 Component side Foil side J H F D B I G E C A 1 3 5 7 2 4 6 55 56 PC BOARD VIEWS TK 760G 762G Component side Foil side D801 D804 D803 J72 0684 02 CN801 1 MBL 5C CE CL E E SB DI 2 7 8 IC801 1 12 13 24 36 37 48 25 R803 R805 Q801
100. l and PC displays the check sum of the radio 5 PC Mode 5 1 Preface The TK 760G 762G transceiver is programmed using a personal computer a programming interface KPG 46 and programming software KPG 56D 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 760G 762G to the personal computer with the interface cable 2 When the Power is switched on user mode can be en tered immediately When the PC sends a command the radio enters PC mode When data is transmitted from transceiver the red LED blink When data is received by the transceiver the green LED blink Notes The data stored in the personal computer must match model type when it is written into the flash memory Change the TK 760G 762G to PC mode then attach the interface cable 5 3 KPG 46 Description PC programming interface cable Option The KPG 46 is required to interface the TK 760G 762G 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 760G 762G to the computers RS 232C serial port KPG 46 IBM PC KPG 56D TK 760G 762G Fig 1 12 TK 760G 762G Note You can clone the programmed data between the trans ceiver listed below Frequency version must be same Slave TK 260G TK 260G TK 760G
101. lch must be closed Wide Narrow 51 ADJUSTMENT Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item TK 760G 762G 6 QT check 1 Set test mode SSG Rear ANT CH CH1 Sig4 panel SSG MOD AF VTVM ACC INT 3kHz Wide 1 5kHz Narrow Distortion EXT SP EXT 151 4Hz meter SSG system MOD DEV Oscilloscope 3 75kHz Wide 1 85kHz Narrow AG SSG output 10dB SINAD level 2 CH CH1 Sig3 Check Squelch must be opened CH1 Sig5 CH1 Sig6 Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item 1 Frequency 1 Set test mode Power meter Rear ANT Front CH Check 161 100MHz 50Hz K Select FREQ in tuning mode F counter panel panel 149 100MHz 50Hz K2 PTT ON 160 100MHz 50Hz M Adjust _ 2 Power 1 Maximum power Check More than 28 0W output Set test mode Select HPOW in tuning mode H POW Adjust 256 PTT ON 3 High power 1 Set test mode 25 0W 1 0W Select HPOW in tuning mode H POW PTT ON Adjust 2 H P OW PTT ON Adjust 3 H P O W PTT ON Adjust 4 H P O W PTT ON Adjust 5 H P O W _ PTT ON Adjust 4 Low power 1 Set test mode Power mete 5 0W 0 5W Select LPOW in tuning mode L POW PTT ON Adjust 2 L P
102. le E30 3383 05 is required for injecting an audio if PC tuning is used See PC Mode section for the connection MIC connector Front view Test cable for microphone input E30 3360 08 1 BLC 2 PSB 3 E 4 PTT 5 ME 6 MIC 7 HOOK 8 CM 48 TK 760G 762G ADJUSTMENT Adjustment Location I Switch TK 760G I Adjustment Point I Note Flash memory The firmware program User mode Test mode Tuning mode etc and the data programmed by the FPU KPG 56D for the flash memory is stored in memory When parts are changed program the data again EEPROM The tuning data Deviation Squelch etc for the EEPROM is stored in memory When parts are changed readjust the transceiver I Repair Jig Chassis Use jig Part No A10 4010 02 for repairing the TK 760G 762G The jig facilitates the voltage check when the voltage on the component side TX RX unit is checked during repairs Extension cable Part No E30 3404 05 L13 L11 L18 L15 L5 IC5 9pin RSSI TX RX UNIT A 2 PLL VCO TC106 CV TC109 Power LED Volume up down Display Channel up down MIC jack Programmable function keys Ax4 Ax5 Extension cable Ax2 Bx2 A 2 6 x 6 B M3 x 8 49 ADJUSTMENT Measurement Test equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item TK 760G 762G Receiver Section 1 Discriminator 1
103. lert To turn the horn alert function on press this key A confirmation tone sounds and the display shows HA on the LCD 1 If this key is pressed again the horn alert function is turned off 1 TK 760G only Key lock Pressing this key causes the transceiver to accept entry of only the Vol Up Down Key lock PTT Monitor A Monitor B Monitor C Monitor D and Emergency keys Monitor Used to release signalling or squelch when operating as a conventional It is also used to reset option signalling Operator selectable tone K market models only This key switches the pre set decode QT DQT and en code QT DQT to OST Operator Selectable Tone tone pair Press this key the transceiver enters to OST select mode In this mode the display shows OFF and the opera tor can select one of the OST tone pair using the channel up down key The display shows TONE and tone pair No is selected Press OST key again the transceiver exits from the OST select mode 16 kinds of tone pair for OST can be programmed by KPG 56D OST is useful to access the repeater with same radio frequency and different tone QT DQT OPERATING FEATURES Public address Public address amplifies the microphone audio and out puts it through a PA speaker PA is activated by pressing this key A confirmation tone sounds and the display shows PA 1 PA can be activated at anytime scanning or non scanning The RAD
104. low 3 TXS Transmitter sense output active high 1 SmarTrunk OMNI mode 2 MDT mode 3 Emergency mode 21 TK 760G 762G INSTALLATION 2 Accessory Terminal TX RX Unit 2 1 External Connector Accessory Terminal Method No Name I O Description Note CN1 1 8C O DC 8V output 2 5S O DC 5V output 3 AUX5 O SMRD Reset output 1 4 AUX6 O 5SC 5S control Cannot use 1 5 NC Non connection 6 AUX3 O SQ Squelch detect output 2 7 AUX1 I PTT External PTT input 2 8 AUX4 TXD TXD Serial control data output 1 9 AUX2 RXD RXD Serial control data input 1 I DTC Data channel control External hook input I CHDATA Channel control serial data input 10 ALT I Alert tone input 11 AFO O Receiver audio signal output 12 AFI I Receiver audio signal input 13 MII I Transmit audio signal input 14 MIO O Transmit audio signal output 15 GND Ground CN3 1 HOR O Horn alert call output 2 E Ground 3 SB O Switched B DC 13 6V output Maximum 1A CN4 1 DEO O Receiver detector output Level 0 5Vrms Standard modulation 2 DTC I Data channel control External hook input 3 IGN I Ignition sense input 4 DI I Data modulation input 5 ME External microphone ground 6 MI I External microphone input 7 PTT I External PTT input active low 8 SQ O Squelch detect output CN5 1 AM I Speaker mute input a
105. lt Yes on tone 13 Control YES NO CNTT_YES Default Yes tone 14 Warning YES NO WART_YES Default Yes tone 19 TK 760G 762G REALIGNMENT Self programming mode Function setting mode MON key function D A A MON key function D A key function key function A key function SCN key function FOOT key function D A D A D A D A D A CH key function D A CH key function D A VOL key function D A VOL key function D A Power on tone yes no D A Control tone yes no D A Warning tone yes no D A Minimum volume D A Off hook decode D A Off hook horn alert D A D A Time out timer TOT pre alert time D A TOT rekey time D A TOT reset time D A Clear to transpond D A Signalling D A D A Look back time A Priority Squelch level D A Look back time B Revert channel Dropout delay time Dwell time Off hook scan Digit time D A D A D A D A D A D A D A Inter digit time D A First digit time
106. move the control panel and the TX RX unit B 2 con trol section Fig 6 Fig 6 23 TK 760G 762G INSTALLATION 1 2 3 4 5 6 2 Fold the flat cable in the opposite direction 3 Rotate the control section 180 degrees 4 Insert the flat cable into the control section connector CN501 5 Mount the control section on the transceiver CN501 1 2 3 4 5 6 Fig 7 6 External Speaker 6 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 KES 3 Fig 9 6 Rotate the control panel 180 degrees and mount it on the transceiver Refit the two halves of the case to complete installation Fig 8 Fig 8 6 2 KES 4 Option The KES 4 is an external speaker used with the acces sory 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 CN8 of the transceiver to connector C of the KCT 19 instead of to the internal speaker connector KES 4 1 3 6 13 15 12 Crimp terminal E23 0613 05 Black lead Black White lead Fig 10 24 TK 760G 762G Frequency Configuration The receiver utilizes double conversion The first IF is 49 95MHz and the second IF is 450kH
107. n Operating TK 760G only I Scan types Single group scan You can scan all 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 8 TK 760G 762G I 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 When you activate the key programmed to the scan func tion the scan starts The scan icon SCN lights and SCAN is indicated on alphanumeric display I 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 I 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 A lights I Priority channel setting A priority channel can be set as follows with the program ming so
108. n a code is input Input it with DTMF key Blank Data clear 7 Busy No BCL_NO__ Default channel Type 1 BCL_1___ BCL_YES_ for K type lockout Type 2 BCL_2___ Not used for K type 8 Beat No SHFT_NO_ Default shift Yes SHFT_YES 15 TK 760G 762G 10 Function Setting Mode All channels can be set up together in the action mode by using the panel keys Pressing when SELF is displayed sets the function setting mode Select an item set using then change the selection with the CH The data displayed using D A is stored in the memory and then proceeds to the next item Pressing proceeds to the next item without storing it in the memory Press to display SELF and return to reset default status No Function Choices Display Remarks Function key 1 MON Not function MON__OFF TK 760G Volume down MON___1_ only Volume up MON___2_ Talk around MON___3_ Auxiliary MON___4_ Dispaly character MON___5_ Home channel MON___7_ Channel down MON___8_ Channel up MON___9_ Key lock MON___10 Public address MON___12 Horn alert MON___14 Selectable QT MON___15 M destination only 2 tone encode MON___16 select Monitor A MON___17 Default Monitor B MON___18 Monitor C MON___19 Monitor D MON___20 Scan MON___22 Scan del add MON___23 Group down MON___24 Group up MON___25
109. nnel during scan Last used revert channel includes talkback function 6 Selected with talkback The transceiver reverts to the channel before scanning or the channel that you changed during scan I Scan end When you reactivate the key programmed to the scan function during scan mode the scan ends The scan icon SCN and SCAN display goes off I 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 5 Details of Features I Time out timer The time out timer can be programmed in 15 seconds increments from 15 seconds to ten minutes If the transmit ter is keyed continuously for longer than the programmed 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 I PTT ID PTT ID provides a DTMF ANI to be sent with ever
110. ollector 8R During transmission the 8RC signal goes low the 8TC signal goes high and Q29 turns on Q28 turns on and a voltage is applied to 8T The CPU in the control unit monitors the PLL IC3 LD signal directly When the PLL is unlocked during transmis sion the PLL LD signal goes low The CPU detects this signal and makes the 8TC signal low When the 8TC signal goes low no voltage is applied to 8T and no signal is trans mitted IC9 SHIFT REG IC502 CPU Q16 SW Q18 SW IC3 PLL Q29 SW Q28 SW LD CONTORL UNIT 8RC 8C 8R 8T 8TC PLL lock LD H Fig 7 Unlock circuit IC508 IC6 Q103 IC507 1 2 MIC AF AMP NJM2904V MIC KEY INPUT AF AMP IDC LPF TC35453F IC502 CPU 30622M 4XXXGP D A CONVERTER M62363FP IC1 SUM AMP TA75S01F X1 VCXO 16 8MHz VCO 2SK508NV K52 IC3 PLL MB15A02 Q106 BUFFER 2SC4226 R24 Q9 BUFFER 2SC4215 Y Q22 RF AMP 2SC3357 Q25 ANT RF AMP 2SC2954 IC400 POWER AMP M67741H 32 K M M67741L 35 K2 Q14 BUFFER 2SC4649 N P IC8 1 2 DIVIDER UPB1509GV Fig 8 Transmitter system Transmitter System I Outline The transmitter circuit produces and amplifies the de sired frequency directly It FM modulates the carrier signal by means of a varicap diode I Power Amplifier Circuit The transmit output signal from the VCO is amplified to a specified level of the power module IC400 by the
111. ollowing table When required re adjust them follow ing the adjustment procedure to obtain the frequencies you want in actual operation Frequency MHz Channel TK 760G 762G K TK 760G 762G K2 TK 760G M No RX TX RX TX RX TX 1 Center 161 050 161 100 149 050 149 100 160 050 160 100 2 Low 148 050 148 100 136 050 136 100 146 050 146 100 3 High 173 950 173 900 161 950 161 900 173 950 173 900 4 161 000 161 000 149 000 149 000 160 000 160 000 5 161 200 161 200 149 200 149 200 160 200 160 200 6 161 400 161 400 149 400 149 400 160 400 160 400 7 16 Signalling Signalling No RX TX 1 None None 2 None 100Hz square 3 QT 67 0Hz QT 67 0Hz 4 QT 151 4Hz QT 151 4Hz 5 QT 210 7Hz QT 210 7Hz 6 QT 250 3Hz QT 250 3Hz 7 DQT D023N DQT D023N 8 DQT D754I DQT D754I 9 DTMF DEC 159D DTMF ENC 159D 10 None DTMF tone 9 11 2 tone 321 7 928 1Hz None 12 Single tone 1200Hz Single tone 1200Hz 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 suitable dummy load i e power meter The speaker output connector must be terminated with a 4 dummy load and connected to an AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning Transceiver
112. onitors the status of the KIN0 to KOUT2 ports If 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 IC502 CPU KIN0 KIN1 KIN2 KOUT0 KOUT1 KOUT2 D A GRP DN CH DN CH UP GRP UP A VOL DN VOL UP Fig 12 Display circuit Fig 13 Key matrix circuit I Display Circuit The CPU IC502 controls the shift register IC510 and display LEDs When the LED1 line goes high when the transceiver is busy Q508 turns on and the green LED on D521 lights In transmit mode the LED0 line goes high Q504 turns on and the red light lights Backlighting LEDs for the key operation unit D509 D514 and LCD are provided When the MBL line goes high Q506 turns on then Q505 turns on and the key illumination LED lights A voltage is applied to the MBL line to turn on the LCD backlight 28 TK 760G 762G I Encode The QT and DQT signals are output from TO of the CPU IC502 and summed with the external pin DI line by the summing amplifier IC2 and the resulting signal goes to the D A converter IC6 of the TX RX unit The DTMF and 2 TONE signals are output from DTMF of the CPU and goes to the audio processor IC508 The signal is summed with a MIC signal by the audio processor IC508 and the resulting signal passes through an analog switch IC509 and goes to the TX RX unit MO The D A converter IC6 adjusts the MO level and the bal
113. ort which is inside of the transceiver turns to the high level If pressed again the AUX icon goes off and the AUX ports turns to the lower level Channel up down When the key is pressed each time the channel number to be selected is incremented decremented and repeats if held for one second or longer OPERATING FEATURES 7 TK 760G 762G Display character TK 760G only This key switches the LCD display between the group and channel number and the group and channel name Emergency M market models only Pressing this key for longer than 1 second causes the transceiver to enter the emergency mode The transceiver jumps to the programmed Emergency the group and chan nel and transmits for 25 seconds The transceiver disables mic mute while transmitting After finishing transmission the transceiver receivers for 5 seconds The transceiver mutes the speaker while receiv ing Following the above sequence the transceiver contin ues to transmit and receive Group up down TK 760G only When the key is pressed each time the group number to be selected is incremented decremented and repeats if held for one second or longer Home channel Press this key once the channel switches to the pre pro grammed home channel Horn alert If you are called from the base station using 2 tone DTMF while you are away from your transceiver you will be alerted by the vehicle horn or some other type of external a
114. own in Table 1 TX RX UNIT A 2 ANT KCT 19 CN2 R134 R133 R135 Fig 4 Operation when KCT 18 R134 R135 is connected Enable Enable KCT 18 cannot Power on off and Horn Disable Enable be connected Alert or AUX A on off Horn Alert or AUX A Enable Disable on off Disable Disable Power cannot be turned on Table 1 R134 and R135 setup chart 2 3 4 1 3 W1 W2 CN1 CN2 KCT 19 Cushion G13 1710 04 CN3 CN7 1 CN3 Fig 5 4 PA HA Unit KAP 1 Option 4 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 3P white black red into CN3 on the TX RX unit inserting W2 3P green into CN7 on the TX RX unit and connecting the KCT 19 option to CN2 and CN3 of the KAP 1 Installation 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 in the board must be placed at the front left side 4 Attach the cushion on the top of the KAP 1 switch unit 1 3 2 5 Fitting the Control Panel Upside Down The TK 760G 762G control panel can be fitted upside down so the transceiver can be mounted with its internal speaker in the upper half of the case facing down in your car 1 Re
115. quare ect 6 Value 3 Dimension 7 Tolerance 4 Temp coefficient Capacitor value 010 1pF 100 10pF 101 100pF 102 1000pF 0 001 F 103 0 01 F Less than 10pF Code B C D F G pF 0 1 0 25 0 5 1 2 1st word 2nd word Refer to the table above Dimension Chip capacitors Dimension code L W T Empty 5 6 0 5 5 0 0 5 Less than 2 0 A 4 5 0 5 3 2 0 4 Less than 2 0 B 4 5 0 5 2 0 0 3 Less than 2 0 C 4 5 0 5 1 25 0 2 Less than 1 25 D 3 2 0 4 2 5 0 3 Less than 1 5 E 3 2 0 2 1 6 0 2 Less than 1 25 F 2 0 0 3 1 25 0 2 Less than 1 25 G 1 6 0 2 0 8 0 2 Less than 1 0 H 1 0 0 05 0 5 0 05 0 5 0 05 Dimension Dimension Chip resistor Dimension code L W T E 3 2 0 2 1 6 0 2 1 0 F 2 0 0 3 1 25 0 2 1 0 G 1 6 0 2 0 8 0 2 0 5 0 1 H 1 0 0 05 0 5 0 05 0 35 0 05 Rating wattage Code Wattage Code Wattage Code Wattage 1J 1 16W 2C 1 6W 3A 1W 2A 1 10W 2E 1 4W 3D 2W 2B 1 8W 2H 1 2W 1 Type 2 Shape 3 Dimension 4 Temp coefficient 5 Voltage rating 6 Value 7 Tolerance CC45 Color T W L PARTS LIST TK 760G 762G PARTS LIST 34 New Parts indicates safety critical components Parts without Parts No are not supplied Les articles non mentionnes dans le Parts No ne sont pas fournis Teile ohne Parts No werden nicht geliefert L Sc
116. rket models only The transceiver is capable to have OST function and 16 tone pair QT DQT I Clear to transpond The transceiver waits the transpond of 2 tone DTMF if channel is busy until channel open This feature prevents the interference to other party 6 Option Signalling DTMF 2 Tone Built in DTMF decoder is available for option signalling Built in 2 tone decoder is available for option signalling It is possible to use individual call group call D B D Dead Beat Disable D B D is used with DTMF 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 CALL will flash and option signalling will be released The transpond or alert tone will sound The orange LED will flash While option signalling matches or if option signalling is deactivated when you are transmitting you can mute or unmute QT DQT Carrier OPERATING FEATURES I AND OR You can select AND or OR for option signalling match conditions Alert Transpond AND QT DQT DTMF 2 tone Option matches Action OR QT DQT DTMF 2 tone Option matches Action AF mute open AND QT DQT DTMF 2 tone Option matches Action OR QT DQT ID Signalling only matches Action With OR set up alert transpond will not function with only DTMF With OR set up AF mute will not release when only DTMF matches With a conven
117. s bus 62 VSS GND 63 70 A7 A0 Flash memory address bus 71 73 KIN0 KIN2 I Key scan input 74 MON I MON key input On L 75 SCN I SCN key input On L 76 PLLUL I PLL unlock detect input Unlock L 77 PLLSTB O PLL strobe output Latch H 78 MUTE I RX audio mute Mute H 79 86 D7 D0 Flash memory data bus 87 PWR EMG I PWR key input key interrupt On L 88 EMG TXS I Emergency input key interrupt On L 89 RFDAT O PLL data output 90 RFCLK O PLL clock output 91 NC NC 92 RSSQL I Receive signal strength indicator input 93 ANLSQL I Analog squelch level input 94 AVSS GND 95 TOI I QT DQT signal input 96 VREF Reference voltage input 97 AVCC 5V 98 DTMPD O DTMF IC power control Power down H 99 DTMCLK O DTMF IC decode clock output 100 DTMDAT I DTMF IC decode data input Microprocessor 30622M4102GP TX RX Unit IC502 30 TK 760G 762G SEMICONDUCTOR DATA Shift Register BU4094BCFV I Terminal function TX RX unit IC510 Pin No Port Name Function 4 Q1 W N Wide Narrow SW Narrow H 5 Q2 MUTE MIC mute M models only Mute H 6 Q3 MBL MIC LCD backlight control Backlight on H 7 Q4 LED0 Red LED LED lights H 11 Q8 BSHIFT Beat shift Shift on H 12 Q7 AFREG2 Base band IC inter register select 2 13 Q6 AFREG1 Base
118. s in the RF section connect the RF wattmeter 50 To make measurements in the AF section connect the AC level meter AG is set so that MIC input becomes 3kHz 1 5kHz Wide Narrow DEV at 1kHz MOD Transmitter Section TK 760G 762G TK 760G 762G 80 TK 760G 762G TERMINAL FUNCTION CN1 TX RX Unit Pin No Name Function 1 8C DC 8V output 2 5S DC 5V output 3 AUX5 SMRD Reset output 1 4 AUX6 5SC 5S control Cannot use 1 5 NC Non connection 6 AUX3 SMCK Clock pulse output 1 SQ Squelch detect output 2 7 AUX1 SMRQ Ack Req input 1 PTT External PTT input 2 8 AUX4 TXD Serial control data output 1 9 AUX2 RXD Serial control data input 1 DTC Data channel control External hook input CHDATA Channel control serial data input 10 ALT Alert tone input 11 AFO Receiver audio signal output 12 AFI Reseiver audio signal input 13 MII Transmit audio signal input 14 MIO Transmit audio signal output 15 GND Ground CN2 TX RX Unit CN501 Control Unit Pin No Name Function 1 SFTDT Serial data for IC9 Shift register 2 UL Lock detect 3 PLST Strobe signal for IC3 PLL IC 4 PLDT Serial data for IC3 PLL IC 5 PLCK Clock pulse for IC3 PLL IC 6 RSSI Receive signal strength indicator 7 ASQ Analog squelch 8 TO Transmit sub tone signal output 9 SFTST Strobe signal for IC9 Shift register 10
119. s the AF signal level of the audio processor IC508 and turns the filter select compounder on or off 3 Controls the DTMF decoder IC511 4 Controls the LCD assembly display data 5 Controls the PLL IC3 6 Controls the D A converter IC6 and adjusts the volume modulation and transmission power Fig 9 APC circuit Fig 10 Control circuit Fig 11 Memory circuit CIRCUIT DESCRIPTION RF AMP Q22 RF AMP Q25 POWER AMP IC400 APC DRIVER Q32 DB B Q31 PRI DRIVER DC AMP IC7 ANT SW D34 LPF ANT POWER DET D35 36 IC15 APC CONTROL D16 PC IC6 23pin Q33 TEMP PROTECT IC6 D A converter IC3 PLL IC9 Shift register IC510 Shift register OE LCDCS CNTCK CNTDT AFCLR AFMSKE AFSTB IC508 Audio processor IC511 DTMF DECO IC502 CPU TX RX UNIT LCD ASSY AFREG2 AFREG1 DTMDAT DTMCLK DTMSTD DAST PLST PLDT PLCK SCL SDA IC502 CPU ADDRESS BUS DATA BUS IC501 FLASH ROM IC505 EEPROM Q506 SW Q508 SW Q504 SW Q505 SW MBL LED1 LED0 IC510 Shift register D521 GRN RED D509 514 MBL MBL I Key Matrix Circuit The TK 760G 762G front panel has function keys Each of them is connected to a cross point of a matrix of the KIN0 to KOUT2 ports of the microprocessor The KOUT0 to KOUT2 ports are always high while the KIN0 to KIN2 ports are always low The microprocessor m
120. s the radio to be mounted in a variety of ways Be sure the mounting surface is adequate to support the radio 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 4 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 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 GENERAL 4 TK 760G 762G SYSTEM SET UP Merchandise received License and frequency allocated by FCC Choose the type of transceiver Are you using the public address Are you using the external speaker Are you using ignition sense cable Delivery Are you using the KGP 1A Modem GPS receiver or the KGP 1B Modem GPS controller Transceiver programming Option 8ch models TK 762G 128ch models TK 760G Frequency range M
121. te set only when DTMF code signalling SEL CALL 44 Group A D GPCD_OFF Default OFF code 45 Auto OFF ART__OFF reset time 1 15s 1s ART__10_ Default 10s 46 Call alert OFF CA T_OFF Default transpond Call alert CA T_C A Transpond CA T_T A Call alert Transpond CA T_T I ID code Transpond CA T_T T Transpond code Others 47 Panel Enable PTM__ENA Default test Not used for TK 762G panel Disable PTM__DIS tuning mode 10 1 Flow Chart 11 Memory Reset Mode TK 760G only You can clear all settings you made in self programming mode or you can return to the original display Press SCN while SELF is displayed will change the dis play to CANCEL Press CH to change the display between CAN CEL and READY When READY is displayed pressing SCN will set all data to default and CLEAR will appear on the display Press SCN again to display SELF When CANCEL is displayed pressing SCN will cancel the reset and SELF will be displayed 20 TK 760G 762G 3 4 5 6 7 8 9 1 Accessory Connection 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 t
122. tional channel not set up with QT or DQT only the carrier is considered when signalling matches I 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 I Dead Beat Disable If the D B D code matches a predetermined action will occur Whether option signalling is activated or not when D B D matches on any channel the transceiver will become TX inhibited or TX RX inhibited While D B D is active if the D B D code code is received D B D will disactivate When D B D matches transpond will function Alert will not be output and option signalling match icon will not ap pear 7 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 The high tone is 1477Hz the mid tone is 941Hz and the low tone is 770Hz I Power on tone This tone is output when the transceiver is turned on The high tone is output for 500ms I Alert tone This tone is output when the transceiver is TX inhibition for TOT and PLL unlocked It is output until the PTT button is released I DBD on tone When a D B D code is received transpond tone sounds I DBD off tone When a D B D release code is received transpond tone sounds 10 TK 760G 762G I Busy tone Sounds in convention
123. uxiliary KEY3__4_ Dispaly character KEY3__5_ TK 762G cannot be selected Home channel KEY3__7_ Channel down KEY3__8_ Channel up KEY3__9_ Key lock KEY3__10 Public address KEY3__12 17 TK 760G 762G No Function Choices Display Remarks Public address CUP___12 Horn alert CUP___14 Selectable QT CUP___15 M destination only TK 762G cannot be selected 2 tone encode CUP___16 select Monitor A CUP___17 Monitor B CUP___18 Monitor C CUP___19 Monitor D CUP___20 Scan CUP___22 TK 762G cannot be selected Scan del add CUP___23 TK 762G cannot be selected Group down CUP___24 TK 762G cannot be selected Group up CUP___25 TK 762G cannot be selected 9 CH No function CDN__OFF Channel Volume down CDN___1_ down Volume up CDN___2_ Talk around CDN___3_ Auxiliary CDN___4_ Dispaly character CDN___5_ TK 762G cannot be selected Home channel CDN___7_ Channel down CDN___8_ Default Channel up CDN___9_ Key lock CDN___10 Public address CDN___12 Horn alert CDN___14 Selectable QT CDN___15 M destination only TK 762G cannot be selected 2 tone encode CDN___16 select Monitor A CDN___17 Monitor B CDN___18 Monitor C CDN___19 Monitor D CDN___20 Scan CDN___22 TK 762G cannot be selected Scan del add CDN___23 TK 762G cannot be selected Group down CDN___24 TK 762G cannot be selected Group up CDN___25 TK 762G cannot be selected 10
124. y time PTT beginning of transmission end of transmission or both You can program PTT ID on or off for each group The contents of ID are programmed for each channel The timing that the transceiver sends ID is program mable BOT DTMF ID BOT MSK ID is sent on beginning of transmission EOT DTMF ID EOT MSK ID is sent on end of transmis sion Both DTMF ID BOT MSK ID is sent on beginning of transmission and DTMF ID EOT MSK ID is sent on end of transmission OPERATING FEATURES 9 TK 760G 762G I Off hook decode If the Off hook decode function has been enabled re moving and replacing the microphone on the hook has no effect for decoding QT DQT and option signalling I TOT pre alert The transceiver has TOT pre alert timer This parameter 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 I 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 I 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 expired I OST Operator Selectable Tone TK 760G K ma
125. yo 150 8501 Japan KENWOOD SERVICE CORPORATION P 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 1S8 KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembr cker Str 15 63150 Heusenstamm Germany KENWOOD ELECTRONICS BELGIUM N V Mechelsesteenweg 418 B 1930 Zaventem 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 KENWOOD ELECTRONICS TECHNOLOGIES S PTE LTD Sales Marketing Division 1 Ang Mo Kio Street 63 Singapore 569110 TK 760G 762G
126. z The first local oscil lator signal is supplied from the PLL circuit The PLL circuit in the transmitter generates the neces sary frequencies Figure 1 shows the frequencies Fig 1 Frequency configuration Receiver System The receiver is double conversion superheterodyne The frequency configuration is shown in Figure 1 I Front end RF Amplifier An incoming signal from the antenna is applied to an RF amplifier Q27 after passing through a transmit receive switch circuit D33 and D34 are off and a band pass filter L18 After the signal is amplified Q27 the signal is fil tered through a band pass filter L11 L13 and L15 to elimi nate unwanted signals before it is passed to the first mixer Band pass filters L18 L11 L13 and L15 have varactor di odes D30 D31 D18 D23 and D28 The voltage of these diodes are controlled by to track the CPU IC502 center frequency of the band pass filter See Fig 2 I First Mixer The signal from the RF amplifier is heterodyned with the first local oscillator signal from the PLL frequency synthe sizer circuit at the first mixer Q15 to create a 49 95MHz first intermediate frequency 1st IF signal The first IF signal is then fed through two monolithic crystal filters MCFs XF1 to further remove spurious signals I IF Amplifier The first IF signal is amplified by Q13 and the enters IC5 FM processing IC The signal is heterodyned again with a second local oscillator signal wit

Kenwood 762G Marine Radio User Manual

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