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LED LCD TV
SERVICE MANUAL
CHASSIS : LD01U
MODEL : 42LV3500/3550/3551
MODEL :
MODEL :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62863058 (1103-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
42LV355A/355C/355N/355U
42LV3500-ZA
42LV3550/355A/355C/355N/355U-ZB
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
42LV3551-ZD
Printed in Korea
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Table of Contents
Related Manuals for LG 42LV355U
Summarization of Contents
SAFETY AND SERVICING PRECAUTIONS
IMPORTANT SAFETY NOTICE
Critical safety warnings and precautions for servicing.
General Servicing Guidelines
Procedures for safe handling, disassembly, and component replacement.
ESD and Soldering Precautions
Guidelines for preventing static discharge damage and proper soldering.
SPECIFICATIONS AND ADJUSTMENTS
Model Specifications
Technical details, requirements, and supported standards for TV models.
Adjustment Procedures
Step-by-step guide for performing TV adjustments and calibration.
Main PCB Check Process
Procedures for inspecting and verifying the main printed circuit board.
SYSTEM DIAGRAMS
Block Diagram
Overall system architecture illustrating major components and interfaces.
Exploded View
Visual breakdown of TV components for assembly and disassembly.
INTERCONNECTIONS AND REPAIR PROCESSES
Interconnection Overview
Illustrates physical connections between internal PCBs and cables.
Video Error Troubleshooting
Diagnostic flowcharts for video-related malfunctions.
Power Error Troubleshooting
Diagnostic flowcharts for power supply and startup issues.
REPAIR APPENDICES AND EXAMPLES
T-Con Board Exchange Examples
Visual examples of common T-Con board defects.
PSU/LED Driver Exchange Examples
Visual examples of power supply and LED driver faults.
Module Exchange Examples
Visual examples of panel module defects.
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