Instruction/ maintenance manual of the product 762G Kenwood
Go to page of 68
Docum ent Cop yrig hts Cop yrigh t 2006 by K e nw ood Corpo ra tio n. A ll rig hts r es erved . No part of th is ma nu al ma y be rep roduced, tr ansla ted, d istribu ted, o r trans mitted i n any fo .
© 2000-1 PRINTED IN JAPAN B51-8497-10 ( N ) 1269 VHF FM TRANSCEIVER TK - 7 60G/ 7 62G SER VICE MANUAL REVISED Please use this manual in place of the service manual (preliminary version), B51-8497-00.
2 T K - 7 60G/ 7 62G CONTENTS / GENERAL GENERAL INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade com- munications equipment. It contains all required service in- formation for the equipment and is current as of the publica- tion date.
3 T K - 7 60G / 7 62G 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.
4 T K - 7 60G/ 7 62G 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.
5 T K - 7 60G / 7 62G 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.
6 T K- 7 60G / 7 62G 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.
7 T K - 7 60G / 7 62G • 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.
8 T K - 7 60G/ 7 62G ■ 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.
9 T K - 7 60G / 7 62G ■ 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. ■ "TOT" pre-alert The transceiver has "TOT pre-alert timer.
10 T K - 7 60G/ 7 62G ■ Busy tone Sounds in conventional mode, when busy channel lock- out is functioning. You can select yes or no for the optional feature's warning tone. ■ Group call tone Sounds when a group call with the correct DTMF/2-tone option signalling is received, repeats 7 times.
11 T K - 7 60G / 7 62G 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).
12 T K - 7 60G/ 7 62G 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 TK-760G TK-760G TK-260G TK-270G KMK.
13 T K - 7 60G / 7 62G 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 / ].
14 T K - 7 60G/ 7 62G 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.
15 T K - 7 60G / 7 62G 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 / ].
16 T K - 7 60G/ 7 62G 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 Mon.
17 T K - 7 60G / 7 62G 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 sele.
18 T K - 7 60G/ 7 62G 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.
19 T K - 7 60G / 7 62G 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.
20 T K - 7 60G/ 7 62G 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.
21 T K - 7 60G / 7 62G INST ALLA TION 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 A.
22 T K - 7 60G/ 7 62G INST ALLA TION 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 Ω ) R134 and R135 of the TX-RX unit (A/2) as shown in Table 1.
23 T K - 7 60G / 7 62G INST ALLA TION 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 ( ).
24 T K - 7 60G/ 7 62G Frequency Configuration The receiver utilizes double conversion. The first IF is 49.95MHz and the second IF is 450kHz. The first local oscil- lator signal is supplied from the PLL circuit. The PLL circuit in the transmitter generates the neces- sary frequencies.
25 T K - 7 60G / 7 62G ■ 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.
26 T K - 7 60G/ 7 62G 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 D ATA IC3 : PLL IC Q9 RF AMP Fig. 6 PLL circuit ■ Unlock Circuit During reception, the 8RC signal goes high, the 8TC sig- nal goes low, and Q16 turns on.
27 T K - 7 60G / 7 62G ■ 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.
28 T K - 7 60G/ 7 62G ■ 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).
29 T K - 7 60G / 7 62G SEMICONDUCTOR DA T A ■ 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.
30 T K - 7 60G/ 7 62G SEMICONDUCTOR DA T A Shift Register : BU4094BCFV ■ 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.
31 T K - 7 60G / 7 62G 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.
32 T K - 7 60G/ 7 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 IC.
33 T K - 7 60G/ 7 62G 2nd Word G 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 12 3 4 5 6 1 = Type … ceramic, electrolytic, etc.
TK - 7 60G/ 7 62G PA R T S L I S T 34 * New Parts. indicates safety critical components. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No.
TK - 7 60G/ 7 62G P ARTS LIST 35 Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description New Desti- parts nation New Desti- parts nation 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.
TK - 7 60G/ 7 62G PA R T S L I S T 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.
TK - 7 60G/ 7 62G P ARTS 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.
TK - 7 60G/ 7 62G PA R T S L I S T 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 .
TK - 7 60G/ 7 62G P ARTS 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.
TK - 7 60G/ 7 62G PA R T S L I S T 40 Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description New Desti- parts nation New Desti- parts nation R619 RK73GB1J104J CHIP R 100K J 1/16.
TK - 7 60G/ 7 62G P ARTS 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.
42 T K - 7 60G / 7 62G 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.
43 T K - 7 60G/ 7 62G 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.
44 T K - 7 60G / 7 62G P ACKING 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 705 W arrant.
45 T K - 7 60G/ 7 62G ADJUSTMENT Test Mode (TK-760G Only) ■ 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.
46 T K - 7 60G / 7 62G 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._.
47 T K - 7 60G/ 7 62G 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 µ V to greater than –7dBm/100mV 2.
48 T K - 7 60G / 7 62G ADJUSTMENT Adjustment Location ■ Switch (TK-760G) ■ Adjustment Point ■ 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.
49 ADJUSTMENT Measurement Test- equipment Unit Terminal Adjustment Unit Parts Method Specifications/Remarks Condition Item T K - 7 60G/ 7 62G Receiver Section 1. Discriminator 1) Set test mode SSG Rear ANT TX-RX L5 AF output maximum. • Wide CH : CH1 - Sig1 panel (A/2) SSG output : –53dBm/501 µ V AF VTVM ACC SSG MOD : 3kHz Oscilloscope (EXT.
ADJUSTMENT Measurement Test- equipment Unit Terminal Adjustment Unit Parts Method Specifications/Remarks Condition Item 50 T K - 7 60G / 7 62G 3. Squelch 3 1) Set test mode SSG Rear ANT Front CH / Adjust to the • Wide Select “SQL3” in tuning mode.
51 ADJUSTMENT Measurement Test- equipment Unit Terminal Adjustment Unit Parts Method Specifications/Remarks Condition Item T K - 7 60G/ 7 62G 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.
ADJUSTMENT Measurement Test- equipment Unit Terminal Adjustment Unit Parts Method Specifications/Remarks Condition Item 52 T K - 7 60G / 7 62G 3) “L . P . O . W” Power meter Rear ANT Front CH / 5.0W ± 0.5W PTT : ON panel panel Adjust [ *** ] 4) “L .
53 ADJUSTMENT Measurement Test- equipment Unit Terminal Adjustment Unit Parts Method Specifications/Remarks Condition Item T K - 7 60G/ 7 62G 8. MIC 1) Set test mode Power meter Rear ANT Check ± 3kHz ± 0.2kHz (Wide) seisitivity CH : CH1 - Sig1 Deviation panel ± 1.
54 T K - 7 60G / 7 62G AC E BD 1 3 5 7 2 4 6 T K - 7 60G / 7 62G 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 D.
J H F D B I G E C A 1 3 5 7 2 4 6 55 56 PC BOARD VIEWS TK - 7 60G / 7 62G 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 R80.
A B C DE FG H IJ KL M NO PQR 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 R.
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 R.
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 C4.
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 1.
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 R602 C603 C609 C605 C601 C599 C613 C503 IC503 G I O C507 R526 R536 C524 R556 C5.
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 SCHEMA TIC DIAGRAM T K-7 6 0 G Note : Components marked with a dot (·) are parts of patterun 1. 70.
AC E G I K M O Q S BD F H J L N P R T 1 3 5 7 2 4 6 T K - 7 62G SCHEMA TIC DIAGRAM 71 Note : Components marked with a dot (·) are parts of patterun 1.
TK - 7 60G/ 7 62G TK - 7 60G / 7 62G TK - 7 60G/ 7 62G 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 T o make measurements in the RF section, connect the RF level meter . In the RF section, use a 0.
80 T K - 7 60G/ 7 62G 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.
81 T K - 7 60G / 7 62G SPECIFICA TIONS 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 .
KENWOOD CORPORA TION 14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 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 Rembrücker Str.
An important point after buying a device Kenwood 762G (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kenwood 762G yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kenwood 762G - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kenwood 762G you will learn all the available features of the product, as well as information on its operation. The information that you get Kenwood 762G will certainly help you make a decision on the purchase.
If you already are a holder of Kenwood 762G, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kenwood 762G.
However, one of the most important roles played by the user manual is to help in solving problems with Kenwood 762G. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kenwood 762G along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
