LG W4-4 - User Manual

MARCH, 2014AFN76552404:ON/P
9.1 channel Cinema Sound
3D Blu-ray
TM
/ DVD Home Theater System
SERVICE MANUAL
MODEL: BH9540TW
(BH9540TW, S94T1-S/C/W, W4-4, T2)
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
Website http://biz.lgservice.com
Internal Use Only
MODEL: BH9540TW (BH9540TW, S94T1-S/C/W, W4-4, T2)SERVICE MANUAL

Summary

LG BH9540 TW Service Manual

Product Safety Servicing Guidelines

Guidelines for servicing BD-HTS products, covering safety and precautions.

Servicing Precautions

Essential precautions for servicing, including general safety and ESD.

Firmware Update Procedure

LG BH9540 TW Electrical Troubleshooting

Digital Display & Media Training Master

Troubleshooting common digital display and media playback issues.

One Point Repair Guide

Specific repair guides for common problems like no power or boot issues.

Electrical Troubleshooting Guide

Flowcharts for diagnosing power supply and system board issues.

Circuit Diagrams and Waveforms

LG BH9540 TW MT8580 F;E Loader Part

LD Check Guide

SA Reset Function Usage

IC501 (MT8580) Block Diagram and Pinout

Internal block diagram and pin function description for the MT8580 IC.

IC701 (TPIC2050) Motor Drive Block Diagram

Pickup Connector Terminal Pin Assignments

MT8580 D Block Diagram

LG BH9540 TW Wireless Receiver Part

Wireless Device Firmware Update

Wireless Receiver Troubleshooting

Guides for no power, no sound, and pairing issues in the wireless receiver.

Electrical Troubleshooting for Wireless

LG W4-4 Specifications

General

Brand	LG
Model	W4-4
Category	Home Theater System
Language	English