Kenwood TK-3202 service manual

UHF FM TRANSCEIVER

TK-3202/3206

© 2004-2 PRINTED IN JAPAN

B51-8678-00 (S) 1246

SERVICE MANUAL

GENERAL .............................................................2

SYSTEM SET-UP .................................................2

REALIGNMENT.................................................... 3

DISASSEMBLY FOR REPAIR ..............................5

CIRCUIT DESCRIPTION....................................... 8

TERMINAL FUNCTION...................................... 12

SEMICONDUCTOR DATA................................. 12

COMPONENTS DESCRIPTION .........................13

PARTS LIST........................................................ 14

EXPLODED VIEW............................................... 21

PACKING............................................................ 22

ADJUSTMENT................................................... 24

PC BOARD

TX-RX UNIT (X57-6890-XX)......................... 30

SCHEMATIC DIAGRAM..................................... 34

BLOCK DIAGRAM.............................................. 38

LEVEL DIAGRAM............................................... 40

KSC-31 / KNB-29N / KNB-30A / KBH-10 .........41

SPECIFICATIONS............................ BACK COVER

CONTENTS

TK-3206 :

Does not come with antenna.

Antenna is available as an option.

Antenna

(T90-1039-05): TK-3202(K,M)

(T90-1040-05): TK-3202(K2,M2)

(KRA-27: Option): TK-3206(M,M3)

Knob (VOLUME)

(K29-9309-03)

Knob (PTT)

(K29-9308-03)

Cabinet assy

(A02-3852-23)(8CH):

TK-3202(K,K2,M,M2)

(A02-3851-23)(16CH):

TK-3206(M,M3)

Knob (CH-SELECTOR)

(K29-9318-03)

Photo is TK-3202.

Contents

Main TK-3202/3206 SERVICE MANUAL CONTENTS TK-3202/3206 GENERAL / SYSTEM SET-UP SYSTEM SET-UP INTRODUCTION SCOPE OF THIS MANUAL TK-3202/3206 REALIGNMENT Fig. 1 1. Modes REALIGNMENT REALIGNMENT Removing the case assembly from the chassis. Removing the TX-RX unit from the chassis. Removing the battery release lever from the case assembly. Attaching the battery release lever to the case assembly. v TK-3202/3206 Cautions for assembly 3. Attaching the antenna receptacle to the chassis. 4. The nuts of the volume knob and channel knob Tighten this screw first. Tighten this screw second. Volume Knob (Silver) Channel Knob (Gold) 1. Frequency Configuration Fig. 1 Frequency configuration Fig. 2 Receiver section 1) Front End (RF AMP) 2) First Mixer 3. PLL Frequency Synthesizer 1) PLL 2) VCO 3)Unlock Detector Fig. 6 Microphone amplifier 4. Transmitter System 1)Microphone Amplifier 2)Drive and Final Amplifier 3)APC Circuit 4)Encode Signalling 7. Control System Fig. 8 Frequency shift circuit Fig. 9 Memory circuit 3) Low Battery Warning Microprocessor : 30622MAA-B89GP (TX-RX UNIT : IC405) TERMINAL FUNCTION / SEMICONDUCTOR DATA TERMINAL FUNCTION CN401 COMPONENTS DESCRIPTION Modulator ADDITIONAL PCB TX-RX UNIT (X57-6890-XX) TK-3202/3206 TK-3202/3206 (Y50-5900-XX) TX-RX UNIT (X57-6890-XX) -20 :TK-3202 (K,M) TK-3206 (M) -22 :TK-3206 (M3) -23 :TK-3202 (K2,M2) Page Page Page Page Page TK-3202/3206 ADDITIONAL PCB ADDITIONAL PCB EXPLODED VIEW PACKING (TK-3202) PACKING (TK-3206) Test Equipment Required for Alignment The following parts are required for adjustment 1. Antenna connector adapter 2. Repair Jig (Chassis) 3. Battery Jig (W05-1011-00) Adjustment points TX-RX unit (X57-689) Component side view Foil Side View Fig. 1 Adjustment points Common Section Transmitter Section Page Receiver Section Page JIHGFEDCBA ADDITIONAL PCB ADDITIONAL PCB IC1 8I IC101 4M IC301 9D IC302 8P IC403 8B IC404 7B IC405 5D IC406 9F Q8 8J Q104 5L Q105 4K Q107 4L Q108 4L Q109 5L Q202 4F Q301 10E Q302 8B Q303 7P Q304 7P Q305 8O Q306 9P Q316 9O Q401 8R Q402 8R Q407 8D Q408 7D D1 8H D11 7J D102 4M D301 9B D302 9B D303 8A D403 8R D404 8R JKLMNOPQRS TK-3202/3206 -20 : K,M (TK-3202), M (TK-3206) -22 : M3 (TK-3206) -23 : K2,M2 (TK-3202) JKLMNOPQRS 30 31 JKLMNOPQRSIHGFEDCBA ADDITIONAL PCB ADDITIONAL PCB IC1 8I IC101 4M IC301 9D IC302 8P IC403 8B IC404 7B IC405 5D IC406 9F Q8 8J Q104 5L Q105 4K Q107 4L Q108 4L Q109 5L Q202 4F Q301 10E Q302 8B Q303 7P 32 33 JKLMNOPQRSIHGFEDCBA IC201 5N IC401 9R IC402 8R Q1 7O Q2 8L Q3 9M Q4 8J Q5 8I Q6 8K Q7 9L Q9 6L Q100 6J Q101 6I Q102 7G Q103 7F Q203 4N Q204 4K Q205 4G Q403 8R Q404 7R Q405 9R D2 9K D3 10M D4 9J ABCDE 1 2 3 4 5 FGHIJ X57-689 2/4 KLMNO X57-689 3/4 37 TSRQP 1 Note :The components marked with a dot () are parts of layer1. * 7 TX-RX UNIT (X57-6890-XX) ADDITIONAL PCB STRIP LINE BLOCK DIAGRAM X57-689 + - CH SW PWR SW / VOL BLOCK DIAGRAM TK-3206(M)) ANT TX/RX:470.00~512.00MHz (TK-3202(K2,M2)) TX/RX:400.00~430.00MHz (TK-3206(M3)) TX/RX:450.00~490.00MHz (TK-3202(K,M) LEVEL DIAGRAM KSC-31 (RAPID CHARGER) KNB-29N (Ni-MH BATTERY PACK) External View KSC-31 / KNB-29N / KNB-30A / KBH-10 External View External View Schematic Diagram KNB-30A (Ni-Cd BATTERY PACK) External View SPECIFICATIONS KENWOOD CORPORATION KENWOOD U.S.A. CORPORATION KENWOOD ELECTRONICS CANADA INC. KENWOOD ELECTRONICS DEUTSCHLAND GMBH