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LG RCT689H Service Manual

LG RCT689H
165 pages
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VCR+DVD RECORDER
SERVICE MANUAL
MODEL: RCT689H
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS
IN THIS MANUAL.
MODEL: RCT689H
SERVICE MANUAL
Website http://biz.lgservice.com
Internal Use Only
P/NO : AFN32896765 FEBRUARY, 2011

Table of Contents

Questions and Answers:

LG RCT689H Specifications

General IconGeneral
Progressive scan outputYes
Analog signal format systemPAL, SECAM
Playback formatsDivX, MPEG4 AVC (H.264)
Dimensions (WxDxH)430 x 260 x 78.5 mm
Number of TV tuners1
Audio formats supportedMP3, WMA
Image formats supportedJPG
Audio decodersDolby Digital
Device typeDVD recorder
Product colorBlack
Disc types supportedCD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.

Summary

SECTION 1 SUMMARY

Product Safety Servicing Guidelines

Guidelines for safe servicing of VCR+DVD recorder products.

Servicing Precautions

Important safety and procedural precautions for service technicians.

EEPROM IC Setting Information

Procedures for setting EEPROM IC options and initializing the system.

Software Upgrade Procedures

Instructions for upgrading main and loader programs, and I/O µ-COM software.

Device Specifications

Technical specifications for the VCR+DVD recorder, covering general, recording, playback, inputs, and outputs.

SECTION 2 CABINET & MAIN CHASSIS

Exploded Views Overview

Visual breakdown of the unit's main sections and components.

Cabinet and Main Frame Section

Detailed illustration of the unit's external and internal frame structure.

Deck Mechanism Sections

Illustrations of the VCR deck mechanisms, RV9 and D37(N) types.

Packing Accessory Section

Identification and illustration of included packing accessories.

SECTION 3 ELECTRICAL

Overall Wiring Diagram

Comprehensive diagram showing electrical connections between major components.

VCR Part Electrical Troubleshooting and Diagrams

Covers VCR adjustments, troubleshooting, diagrams, and PCBs.

VDR Part Electrical Troubleshooting and Diagrams

Covers VDR troubleshooting, diagrams, waveforms, and component lists.

Component Lists and Voltage Charts

Voltage charts for ICs, and lists of capacitors and transistors.

SECTION 4 MECHANISM OF VCR PART(D-37)

Deck Mechanism Parts Locations

Identification and location of various VCR deck mechanism parts.

Deck Mechanism Disassembly and Assembly

Step-by-step procedures for disassembling and assembling VCR deck components.

Deck Mechanism Adjustment Procedures

Instructions for adjusting key mechanical functions like torque, roller height, and head alignment.

Deck Mechanism Troubleshooting Guide

Guides for diagnosing and resolving issues with deck operation and tape loading.

SECTION 5 RV9 LOADER PART

Loader Electrical and Mechanism Troubleshooting

Guides for electrical issues, mechanism problems, and disc recognition.

DVD Disc Information and Specifications

Details on DVD disc types, recording layers, specifications, and zone organization.

Pick-up System Analysis

Internal structure, block diagram, pin assignments, and signal detection for the optical pick-up.

Major ICs: Block Diagrams and Pinouts

Detailed block diagrams and pin descriptions for key ICs in the loader.

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