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Wouxun KG-689 - User Manual

Wouxun KG-689
36 pages
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Service Manual
Model: KG-689
Frequency: 400-470MHz
Version: KG-689-0801-V1
QUANZHOU WOUXUN ELECTRONICS CO., LTD
wouxun wouxun
wouxun wouxun
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Summary

Introduction

Personal Safety

Essential safety precautions for operating and handling the transceiver.

Disassembly and Repair

Step-by-Step Disassembly Guide

Detailed instructions for taking the radio apart for service.

Circuit Description - Frequency Control

PLL, VCO, and Digital Control

Explains PLL, VCO, lose lock detection, and digital control interface.

Circuit Description - Squelch Systems

CTCSS and DCS Circuitry

Explains the circuits for CTCSS and DCS signal processing.

Parts List - Capacitors

Capacitor Specifications

Comprehensive list of capacitors, their specifications, and footprint.

Parts List - Capacitors Continued

Additional Capacitor Data

Further listing of capacitors, specifications, and footprints.

Parts List - Resistors

Resistor Specifications Part 1

List of resistors with specifications and footprint.

Parts List - Resistors Continued

Resistor Specifications Part 2

Continuation of resistor listings, specifications, and footprints.

Parts List - Resistors Final

Resistor Specifications Part 3

Final part of resistor listings, specifications, and footprints.

Parts List - Diodes and Dynatrons

Parts List - Integrated Circuits and Tubes

Parts List - Other Components

Adjustment Procedures - Setup

Adjustment Procedures - Transmitter

Schematic Diagrams

Main Circuit Schematic

Detailed electrical schematic of the radio's circuitry.

Schematic Diagrams - LCD

Board Layouts - Main PCB

Board Layouts - Main PCB Continued

PCB Component Placement - Top

PCB Component Placement - Bottom

System Block Diagram

Technical Specifications

Wouxun KG-689 Specifications

General IconGeneral
BrandWouxun
ModelKG-689
CategoryTransceiver
LanguageEnglish

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