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Kenwood TK-3207 Service Manual

Kenwood TK-3207
61 pages
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UHF FM TRANSCEIVER / UHF 调频对讲机
TK-3207
© 2004-2 PRINTED IN JAPAN
B51-8680-00 (S) 663
SERVICE MANUAL / 维修手册
Antenna
天线
(T90-1039-05): M
(T90-0798-15): C
(T90-0800-15): C2
Knob (VOLUME)
旋钮(音量)
(K29-9309-03)
Knob (PTT)
按钮(PTT)
(K29-9308-03)
Cabinet assy
机壳
(A02-3851-23)
Knob (CH-SELECTOR)
旋钮(信道)
(K29-9318-03)
GENERAL ............................................................. 2
SYSTEM SET-UP ................................................. 3
REALIGNMENT .................................................... 4
DISASSEMBLY FOR REPAIR .............................. 7
CIRCUIT DESCRIPTION ..................................... 12
TERMINAL FUNCTION ...................................... 20
SEMICONDUCTOR DATA ................................. 20
COMPONENTS DESCRIPTION ......................... 22
PARTS LIST ........................................................ 24
EXPLODED VIEW ............................................... 30
PACKING ............................................................ 31
ADJUSTMENT ................................................... 32
PC BOARD
TX-RX UNIT (X57-6890-XX) ......................... 44
SCHEMATIC DIAGRAM ..................................... 48
BLOCK DIAGRAM .............................................. 52
LEVEL DIAGRAM ............................................... 54
KSC-31 / KNB-29N ............................................. 55
KNB-30A / KBH-10 ............................................. 56
SPECIFICATIONS ............................................... 57
CONTENTS

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Kenwood TK-3207 Specifications

General IconGeneral
BrandKenwood
ModelTK-3207
CategoryTransceiver
LanguageEnglish

Summary

INTRODUCTION

PERSONNEL SAFETY

Crucial safety precautions to prevent injury and equipment damage during operation.

GENERAL / 概述

SYSTEM SET-UP / 系统体系

Procedure for initial configuration and operational setup of the transceiver.

REALIGNMENT / 模式组合

3. PC Mode

Details on connecting and using the transceiver with a PC for programming.

4. Clone Mode

Procedure for copying transceiver data wirelessly from one unit to another.

DISASSEMBLY FOR REPAIR / 维修拆卸

Removing the case assembly from the chassis.

Steps to safely detach the transceiver's outer case from its internal chassis.

Removing the TX-RX unit from the chassis.

Procedure for removing the main transmitter/receiver unit from the transceiver chassis.

Removing the battery release lever from the case assembly.

Instructions for detaching the battery release mechanism from the transceiver housing.

Attaching the battery release lever to the case assembly.

Guide on how to properly reassemble the battery release mechanism into the housing.

Assembling the battery release lever

Steps for correctly putting together the battery release lever components.

Cautions for assembly

Important warnings and guidelines for the assembly process, particularly regarding the positive terminal.

Mounting the chassis to the case assembly.

Instructions for securely fitting the transceiver chassis back into its outer case.

CIRCUIT DESCRIPTION / 电路说明

3. PLL Frequency Synthesizer

Overview of the Phase-Locked Loop circuit for frequency generation.

1) PLL

Detailed explanation of the Phase-Locked Loop circuit's operation and components.

2) VCO

Description of the Voltage-Controlled Oscillator circuit and its control mechanisms.

4. Transmitter System

Overview of the transmitter section's functional blocks.

2) Drive and Final Amplifier

Explanation of the RF driver and final power amplifier stages.

3) APC Circuit

Description of the Automatic Power Control circuit for stable output.

5. Power Supply

Overview of the transceiver's power supply configurations and voltage rails.

6. Control Circuit

Description of the microprocessor-based control system and its functions.

2) Memory Circuit

Description of the memory circuit for storing transceiver programs and data.

3) Low Battery Warning

Explanation of the low battery detection and warning system.

Control System

TERMINAL FUNCTION / 端子功能

SEMICONDUCTOR DATA / 半导体数据

EXPLODED VIEW / 部件分解图

ADJUSTMENT / 调整

Test Equipment Required for Alignment

List of necessary test equipment for performing transceiver adjustments.

2. Repair Jig (Chassis)

Information about the specialized jig used for chassis-based repairs and checks.

3. Battery Jig (W05-1011-00)

Details on the battery jig and precautions for connecting power during adjustments.

Adjustment points TX-RX unit (X57-689)

Identification of adjustment points on the TX-RX unit for frequency and signaling.

SCHEMATIC DIAGRAM / 原理图

BLOCK DIAGRAM / 方块图

SPECIFICATIONS

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