LG 22LN4000 - Service Manual

Printed in KoreaP/NO : MFL67698505 (1303-REV00)
CHASSIS : LM91N
MODEL : 22LN4000 22LN4000-TA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED TV
SERVICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only

Summary

Safety Precautions

Important Safety Notice

Key safety advice for parts and design modifications.

General Guidance

Advice on isolation transformers, fuse replacement, and wire routing.

AC Leakage Current Checks

Procedures for cold and hot AC leakage current testing.

Servicing Precautions

General Servicing Precautions

Guidelines for general servicing and component handling.

Static-Sensitive Device Handling

Component Replacement Procedures

Adjustment Instruction

Adjustment Setup and Designation

Software Download Procedures

Download Methods and EDID;HDCP

White Balance and Function Checks

Trouble Shooting

Power and Raster Troubleshooting

Flowcharts for no power and no raster issues.

Screen and Input Troubleshooting

Flowcharts for abnormal/no screen across various inputs.

Sound Troubleshooting

Flowcharts for no sound and abnormal sound issues.

Technical Overviews

Board and Power Schematics

LG 22LN4000 Specifications

General

Brand	LG
Model	22LN4000
Category	LED TV
Language	English