LG 49LJ5500-UA - User Manual

P/NO : MFL69963003 (1703-REV01)
CHASSIS : LA75M
MODEL : 49LJ55** 49LJ55**-U*
LED TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONFIDENTIAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.
Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

Summary

Safety Precautions

General Guidance for Servicing

Provides essential advice for safe servicing, including using isolation transformers and handling fuses.

Leakage Current Cold Check Procedure

Outlines the procedure for checking AC leakage current with the unit unplugged.

Leakage Current Hot Check Procedure

Details the method for measuring AC leakage current with the unit powered on.

Servicing Precautions

General Servicing Precautions

Covers safety measures like unplugging power, testing high voltage, and cleaning contacts.

Electrostatic Discharge (ESD) Handling

Explains how to handle sensitive components to prevent static damage.

Soldering Procedures and Guidelines

Component Removal and Replacement

Software Update

USB Software Update

Network Software Update (NSU)

Disassembly Guide

Trouble Shooting Guide

Video Error Troubleshooting

Provides diagnostic steps for various video-related issues.

Power Error Troubleshooting

Guides on diagnosing and resolving power-related problems.

Audio Error Troubleshooting

Function Error Troubleshooting

Noise Troubleshooting

LG 49LJ5500-UA Specifications

General

Screen Size	49 inches
Display Type	LED
Resolution	1920 x 1080
Refresh Rate	60 Hz
Smart TV	Yes
Operating System	webOS
HDMI Ports	2
USB Ports	1
Audio Output	20W