LG 55UJ634 Series User Manual

P/NO : MFL69884711 (1710-REV03)
CHASSIS : UB74P
MODEL : 55UJ634* 55UJ634*-TD
55UJ660T 55UJ660T-TD
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED TV
SERVICE MANUAL
CONFIDENTIAL
Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

LG 55UJ634 Series Specifications

General

Brand	LG
Model	55UJ634 Series
Category	LED TV
Language	English

Summary

Safety Precautions

General Guidance and Leakage Current Checks

Safety guidelines, including AC leakage current testing procedures.

Servicing Precautions

General Servicing and Component Handling

Precautions for servicing, ES devices, soldering, and component replacement.

Product Specifications

Application Range and General Specs

Defines scope, testing conditions, and general technical specs for models.

CVBS and Component Input Specs

Details supported CVBS and Component signal formats.

HDMI Input Specs

Lists supported HDMI input resolutions and refresh rates.

HDMI PC Input Specs

Details supported PC input resolutions via HDMI.

System Information

Software Update Procedures

Instructions for updating TV software via USB and network.

Block Diagrams

Overview of external connections, internal SoC, and interface diagrams.

Physical Components

Exploded Views

Visual breakdown of set and module components.

Disassembly Guide

Detailed steps for disassembling the TV, including latch and screw removal.

Troubleshooting

Diagnostic Steps for Major Errors

Steps to diagnose and resolve Video, Power, Audio, and Function related issues.