Kenwood TK-7102 DISASSEMBLY FOR REPAIR

TK-7102

1. When you remove the panel, turn the transceiver up

side down. Detach the panel by lifting the tabs as

shown below.

Fig. 1

Fig. 2

DISASSEMBLY FOR REPAIR

2. To remove the cabinet, first turn the transceiver up

side down. Detach the cabinet by prying the tabs as

shown below.

3. To remove the display unit PCB, detach the PCB by

lifting at the indents of the PCB as shown below.

Fig. 3

Fig. 4

4. When mounting the front panel, match the 4 tabs of

the chassis with the panel, being sure they attach

securely.

tabs

indents

tabs

Contents

Main TK-7102TK-7102 VHF FM TRANSCEIVER TK-7102 SERVICE MANUAL SPECIFICATIONS KENWOOD CORPORATION TK-7102TK-7102 CONTENTS / GENERAL GENERAL INTRODUCTION ORDERING REPLACEMENT PARTS GENERAL NOTE 1.Controls and Functions 1-1. Front Panel u OPERATING FEATURES qwe tr i 1-4. Display 1-5. Rear panel OPERATING FEATURES Scan ON/OFF Talk around Temporary delete None OPERATING FEATURES Temporary delete 5.Details of Features Time-out timer PTT ID TK-7102 Stun 7.Audible User Feedback Tones Stun on tone Stun off tone REALIGNMENT 3-4. Programming Software Description Fig. 2 3-5. Programming With IBM PC 4.Clone Mode DISASSEMBLY FOR REPAIR TK-7102 Frequency Configuration Fig. 2 Receiver system Fig. 1 Frequency configuration Receiver System PLL Frequency Synthesizer PLL VCO Fig. 6 PLL circuit Unlock Circuit Fig. 8 Transmitter system Transmitter System Outline Power Amplifier Circuit APC Circuit Memory Circuit Control Circuit Fig. 10 Control circuit Fig. 9 APC circuit Display Circuit Key Matrix Circuit Power Supply Circuit Decode QT/DQT/DTMF Fig. 14 Encode SEMICONDUCTOR DATA Microprocessor : 784214AGCXXX (TX-RX Unit IC6) Terminal function DESCRIPTION OF COMPONENTS Display Unit (X54-3340-20) TX-RX Unit (X57-6290-20) DESCRIPTION OF COMPONENTS Destination TK-7102 Parts No. Description DISPLAY UNIT (X54-3340-20) Ref. No. Destination M:TK-2107 M2:TK-2107 TX-RX UNIT (X57-6290-20) 400~420Hz : C5 450~470Hz : C6 M:TK-2107 M2:TK-2107 400~420Hz : C5 450~470Hz : C6 M:TK-2107 M2:TK-2107 EXPLODED VIEW Parts with the exploded numbers larger than 700 are not supplied. PACKING Parts with the exploded numbers larger than 700 are not supplied. Test Equipment Required for Alignment Tuning cable (E30-3383-05) MIC connector (Front view) Test cable for microphone input (E30-3360-08) Page Test frequency(MHz) Use KPG-70D programming software for adjustment of the next items. PCB Section Receiver Section Transmitter section Test frequency(MHz) Page DISPLAY UNIT (X54-3340-20) Component side view + Foil side view DISPLAY UNIT (X54-3340-20) Foil side view DISPLAY UNIT (X57-3340-20) Component side view TK-7102 TX-RX UNIT (X57-6290-20) Component side view B BCE Component side view TX-RX UNIT (X57-6290-20) Foil side view 35 36 26 25 50 TK-7102 TX-RX UNIT (X57-6290-20) Component side view + Foil side view 20 OUT IN GND SCHEMATIC DIAGRAM TK-7102 Note : Component marked with a dot () are parts of pattern1. Page Page TK-7102TK-7102 CONTENTS / GENERAL GENERAL INTRODUCTION ORDERING REPLACEMENT PARTS TK-7102 SERVICE MANUAL SPECIFICATIONS KENWOOD CORPORATION