Kenwood TK-7100H Service Manual
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Kenwood TK-7100H Service Manual

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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.

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Summary of Contents for Kenwood TK-7100H

  • Page 1 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...

  • Page 2: Table Of Contents

    VHF FM TRANSCEIVER TK-7100H SERVICE MANUAL © 2003-1 PRINTED IN JAPAN B51-8645-00 ( N ) 658 Microphone (T91-0624-05) : K Cabinet (A01-2181-01) Key top Panel assy (K29-9262-01) (A62-1074-03) CONTENTS GENERAL ..........2 PACKING ..........29 SYSTEM SET-UP ........3 ADJUSTMENT ........30 OPERATING FEATURES ......

  • Page 3: General

    TK-7100H GENERAL 3. PRE-INSTALLATION CHECKOUT INTRODUCTION 3-1. Introduction SCOPE OF THIS MANUAL Each radio is adjusted and tested before shipment. How- This manual is intended for use by experienced techni- ever, it is recommended that receiver and transmitter opera- cians familiar with similar types of commercial grade commu- tion be checked for proper operation before installation.

  • Page 4: System Set-Up

    Your sand from getting in. KENWOOD dealer can help you select an antenna system 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.

  • Page 5: Operating Features

    TK-7100H OPERATING FEATURES 1-3. Display 1. Controls and Functions 1-1. Front Panel Indicator Description Appears while transmitting. 1-2. Microphone Appears when trunking is activated. Appears while monitoring the selected channel (squelch is off). Appears when making a call using Code Squelch or Selective Call.

  • Page 6: Realignment

    The data can be input to or read from TK-7100H and edited on the screen. The programmed or edited data can be 2. How to Enter Each Mode printed out. It is also possible to tune the transceiver.

  • Page 7: Self Programming Mode

    TK-7100H REALIGNMENT 4-1. Adding the data password. 5-2. Adding the Data Password If the data password is set in the optional feature menu, If the data password is set in the optional feature menu, you must enter the password (Master transceiver) to activate you must enter the password to activate a self programming a clone mode.
  • Page 8 TK-7100H REALIGNMENT No. Function Choices Display Remarks No. Function Choices Display Remarks D Q T 0 0 0 I ✽ - - - - - - - - key : Off/QT/DQT DQT 000~777 key : Hold 1 second D Q T 7 7 7 I ✽...
  • Page 9 TK-7100H REALIGNMENT ■ Flow Chart 5-4. DTMF Setting Mode Each radio can be setup in its action mode by using the Self programming mode panel keys. [MON] • Pressing [SCN] when “ SELF ” is displayed, sets the [MON] Channel Group DTMF setting mode.
  • Page 10 TK-7100H REALIGNMENT 3. Insert the KCT-39 cable ( ) into the chassis ( ). The 6. Accessory Connection Cable (KCT-39) wire harness band ( ) must be inside the chassis and The KCT-39 is an accessory connection cable for connect- face down.
  • Page 11 TK-7100H REALIGNMENT / INSTALLATION 7. Ignition Sense Cable (KCT-18) 1. Optional Board The KCT-18 is an optional cable for enabling the ignition 1-1. Voice Scrambler Board Connection ■ Modification function. The ignition function lets you turn the power to the transceiver on and off with the car ignition key.

  • Page 12: Installation

    TK-7100H INSTALLATION ■ Pins Connection 1-2. Example for Connection ■ Picture (Trunking Board) Voice scrambler 12 pins lead wire 11 pins lead wire functions with connector (A) with connector (B) A-12 – A-11 – A-10 – – – – –...

  • Page 13: Disassembly For Repair

    TK-7100H DISASSEMBLY FOR REPAIR 1. When you remove the panel, turn the transceiver up side 3. When mounting the front panel, match the 4 tabs of the down. Detach the panel by lifting the tabs as shown be- chassis with the panel, being sure they attach securely.
  • Page 14 TK-7100H DISASSEMBLY FOR REPAIR Lift up the display unit and remove. Open the bottom of display unit at No. 2 as indicated. 4-2. Mount the display unit To mount the display unit on the panel, follow the correct procedures shown to ensure easy display unit assembly and good fitting onto the panel.
  • Page 15 TK-7100H DISASSEMBLY FOR REPAIR Snap in top of display unit (No. 4). Snap in bottom of display unit (No. 3). Ensure that display unit holes locator is properly located on the illumination guide locators as shown. Snap in bottom of display unit (No.

  • Page 16: Circuit Description

    TK-7100H CIRCUIT DESCRIPTION ■ IF Amplifier Frequency Configuration The first IF signal is amplified by Q351, and the enters The receiver utilizes double conversion. The first IF is IC301 (FM processing IC). The signal is heterodyned again 49.95MHz and the second IF is 450kHz. The first local oscil- with a second local oscillator signal within IC301 to create a lator signal is supplied from the PLL circuit.
  • Page 17 TK-7100H CIRCUIT DESCRIPTION ■ Wide/Narrow Changeover Circuit ■ Squelch Circuit The Wide port (pin 65) and Narrow port (pin 64) of the CPU The detection output from the FM IF IC (IC301) passes is used to switch between ceramic filters. When the Wide through a noise amplifier (Q301) to detect noise.
  • Page 18 TK-7100H CIRCUIT DESCRIPTION ■ Unlock Circuit Transmitter System During reception, the 8RC signal goes high, the 8TC signal ■ Outline goes low, and Q34 turns on. Q33 turns on and a voltage is The transmitter circuit produces and amplifies the desired applied to the collector (8R).
  • Page 19 CIRCUIT DESCRIPTION ■ Key Matrix Circuit Control Circuit The TK-7100H front panel has function keys. Each of The CPU carries out the following tasks: them is connected to a cross point of a matrix of the KMI1 to 1) Controls the WIDE, NARROW, TX/RX outputs.
  • Page 20 TK-7100H CIRCUIT DESCRIPTION / SEMICONDUCTOR DATA ■ Decode • QT/DQT/DTMF The signal (W/NO (EVOL2)) goes to SIGNAL (pin 88) of CPU (IC101). The QT/DQT signal will pass through the low- pass filters in the CPU (IC101) and be decoded within the CPU (IC101).

  • Page 21: Semiconductor Data

    TK-7100H SEMICONDUCTOR DATA Microprocessor : 30622MAA-B76GP (TX-RX Unit IC101) ■ Terminal Function Pin No. Name Function Pin No. Name Function QT/DQT QT/DQT output. AMPSW AF AMP switch. DTMF/MSK DTMF/MSK/BEEP output Common data. PLLE PLL IC chip select. Common clock. 55,56 GND.

  • Page 22: Components Description

    TK-7100H COMPONENTS DESCRIPTION Display Unit (X54-3430-20) Ref. No. Parts name Description Ref. No. Parts name Description Q254 Digital transistor AF mute / Active while SPM is H LCD controller Q255 Transistor AF mute / Active while AMPSW is H Transistor...

  • Page 23: Parts List

    Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Other Areas Teile ohne Parts No. werden nicht geliefert. TK-7100H, DISPLAY UNIT (X54-3430-20) TX-RX UNIT (X57-6700-20) Desti- Desti- Ref. No.
  • Page 24 CHIP C 1000PF C388 CC73GCH1H040B CHIP C 4.0PF C265,266 CK73GB1C104K CHIP C 0.10UF C267 CK73GB1A474K CHIP C 0.47UF C389 CK73GB1H102K CHIP C 1000PF C268 CK73GB1C104K CHIP C 0.10UF C401-403 CC73GCH1H101J CHIP C 100PF K : TK-7100H K M : TK-7100H M...
  • Page 25 CK73GB1H821K CHIP C 820PF L352 L41-5685-08 SMALL FIXED INDUCTOR L354-356 L34-4612-05 AIR-CORE COIL C517 CC73GCH1H030B CHIP C 3.0PF C518 CC73GCH1H330J CHIP C 33PF C519 CC73GCH1H820J CHIP C 82PF L357 L34-4611-05 AIR-CORE COIL K : TK-7100H K M : TK-7100H M...
  • Page 26 CHIP R 1/16W R255,256 RK73GB1J562J CHIP R 5.6K 1/16W RK73GB1J473J CHIP R 1/16W R257 RK73GB1J105J CHIP R 1.0M 1/16W R92-1252-05 CHIP R 0 OHM J 1/16W R258 RK73GB1J272J CHIP R 2.7K 1/16W K : TK-7100H K M : TK-7100H M...
  • Page 27 R516 R92-0670-05 CHIP R 0 OHM R365 RK73GB1J104J CHIP R 100K 1/16W R366 RK73GB1J471J CHIP R 1/16W R518 RK73EB2B330J CHIP R 1/8W R367 RK73GB1J470J CHIP R 1/16W R519 RK73GB1J333J CHIP R 1/16W K : TK-7100H K M : TK-7100H M...
  • Page 28 MOS IC IC251 NJM2902V MOS IC IC252 LA4600 AF POWER IC IC301 TK14489V BI-POLAR IC IC401 MB15A02 MOS IC IC402 UPB1509GV BI-POLAR IC IC501 TA75W01FU MOS IC 2SK1824 2SA1641(S,T) TRANSISTOR KRC102S DIGITAL TRANSISTOR K : TK-7100H K M : TK-7100H M...

  • Page 29: Exploded View

    TK-7100H EXPLODED VIEW A M2.6 x 8 : N67-2608-46 B M2.6 x 6 (Br-Tap) : N87-2606-46 C M2.6 x 14 (Br-Tap) : N87-2614-46 Bx12 Q504 IC252 Display unit TX-RX unit S/No. label Caution label Parts with the exploded numbers larger than 700 are not supplied.

  • Page 30: Packing

    TK-7100H PACKING 8 Instruction manual (B62-1673-00) 37 Protection bag (H25-2341-04) 702 Pamphlet 9 Instruction manual (B62-1674-00) : K 37 Protection bag (H25-2341-04) 35 Packing fixture (H12-3112-05) 35 Packing fixture (H12-3112-05) 48 Microphone (T91-0624-05) : K 38 Item carton cse (H52-1829-22)

  • Page 31: Adjustment

    TK-7100H ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 136 to 175MHz (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –7dBm/100mV 2. Power Meter Input Impedance 50Ω Operation Frequency...
  • Page 32 TK-7100H ADJUSTMENT ■ Notes Adjustment Location • EEPROM ■ Switch The tuning data (Deviation, Squelch, etc.) for the EEP- ROM, is stored in memory. When parts are changed, re- Volume Channel up/down up/down adjust the transceiver. Display Power Speaker • AF PA IC (IC252) How to mounting the IC252.
  • Page 33 TK-7100H ADJUSTMENT PCB Section Measurement Adjustment Specifications/ Item Condition Remarks Test equipment Terminal Parts Method 1. Setting 1) Power supply voltage DC Power supply terminal : 13.6V ± 0.1V 2. VCO lock 1) CH : TX high Digital voltmeter TC402 5.5V...
  • Page 34 TK-7100H ADJUSTMENT Transmitter Section Measurement Adjustment Specifications/ Item Condition Remarks Test equipment Terminal Parts Method Within ± 100Hz 1. Frequency 1) CH : TX center Frequency counter PC key Adjust to center frequency 2) Transmit ± 1W 2. Maximum 1) CH : TX high...

  • Page 35: Terminal Function

    TK-7100H TERMINAL FUNCTION Name Function Name Function Battery voltage DC supply Ignition sens input DATAI External transmit signal input Ground DETO FM detector output TXAFI TX audio input from scrambler board FNC1 Programable I/O (programmed by FPU) TXAFO TX audio output to scrambler board...

  • Page 36: Pc Board

    TK-7100H PC BOARD DISPLAY UNIT (X54-3430-20) Component side view (J72-0885-09) J72-0885-09 Ref. No. Address Ref. No. Address VOL UP CH UP POWER VOL DN CH DN POWER HOOK KMI2 KMI1 KMI3 KMO1 KMI4 KMO2 HOOK DISPLAY UNIT (X54-3430-20) Foil side view (J72-0885-09) Ref.

  • Page 37: Tx-Rx Unit (X57-6700-20)

    TK-7100H PC BOARD TX-RX UNIT (X57-6700-20) Component side view (J72-0886-19) Ref. No. Address IC33 IC161 IC201 IC202 IC203 C574 C527 C615 IC252 C576 C528 IC401 IC501 C546 C613 C530 C545 C529 Q201 Q202 C608 Q252 Q253 Q504 Q254 C533 Q255...
  • Page 38 TK-7100H PC BOARD Ref. No. Address TX-RX UNIT (X57-6700-20) Foil side view (J72-0886-19) IC31 IC32 IC34 IC35 IC66 IC101 CN601 IC251 IC301 L605 IC402 C616 C610 R601 D607 C607 C606 L603 D606 Q251 Q301 Q352 Q353 Q404 Q405 Q406 Q407...
  • Page 39 TK-7100H PC BOARD Ref. No. Address Ref. No. Address TX-RX UNIT (X57-6700-20) Component side view + Foil side (J72-0886-19) IC31 Q411 12L IC32 Q440 12J IC33 Q501 IC34 Q502 10H IC35 12G Q503 IC66 11G Q504 CN601 IC101 11E C574...

  • Page 40: Schematic Diagram

    TK-7100H Note : The components marked with a dot ( • ) are parts of layer 1. SCHEMATIC DIAGRAM X57-6700-20 TX-RX UNIT CN601 X54-3430-20 DISPLAY UNIT F501 RX VCO RF AMP T:4.8V RF SWITCH Q501 PRE DRIVE AMP Q502 PRE DRIVE AMP...

  • Page 41: Block Diagram

    TK-7100H TK-7100H BLOCK DIAGRAM DISPLAY UNIT (X54-3430-20) TX-RX UNIT (X57-670x-xx) Q404 D602 2SC4649(N,P) MA4PH633 Q502 Q503 Q504 Q405 IC402 Q411 Q501 Q410 D603,605 2SC3357 PD55003TR RD70HVF1 POWER 2SK508NV(K52) 2SC5108(Y) UPB1509GV 2SC4649(N,P) 2SC3357 XB15A709 Q402 IC401 DRIVE FINAL PTT(TXD) 2SA1832(GR) CHARGE...

  • Page 42: Level Diagram

    TK-7100H TK-7100H LEVEL DIAGRAM Receiver Section Center Frequency 450kHz 49.95MHz Audio Frequency W : –77.5dBm W : –85.0dBm N : –74.0dBm N : –84.5dBm W : –123.5dBm W : –119.0dBm W : –104.5dBm W : –104.0dBm W : –112.0dBm W : –92.0dBm /CF2 N : –123.0dBm...

  • Page 43: Specification

    TK-7100H SPECIFICATIONS GENERAL Frequency Range ....... 146 to 174MHz Channels / Groups ......64CH / 8GRP Channel Spacing ......... Wide : 25kHz Narrow : 12.5kHz PLL Channel Stepping ......2.5, 5, 6.25, 7.5kHz Operating Voltage ....... 13.6V DC ± 15% Current Drain ........
  • Page 44 Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands KENWOOD ELECTRONICS ITALIA S.p.A.

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