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LED TV
SERVICE MANUAL
CHASSIS : LD42B
MODEL : 32LB65**
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67985203 (1401-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
32LB65**-Z*
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea
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Table of Contents
Related Manuals for LG 32LB650V
Summarization of Contents
LG LED TV Service Manual
Model and Chassis Information
Details the specific TV model and chassis for this service manual.
Safety Precautions
Important Safety Notices
Crucial safety information and warnings for technicians before servicing.
General Servicing Guidelines
General procedures and recommendations for safe servicing operations.
Leakage Current Checks
Procedures for performing AC leakage current checks (cold and hot).
Servicing Precautions
General Servicing Procedures
Detailed steps and cautions for handling components and assemblies during service.
Handling Electrostatic Sensitive Devices
Guidelines for preventing damage to sensitive electronic components from static discharge.
Soldering Guidelines and Techniques
Best practices for soldering and desoldering components safely and effectively.
Component Removal and Replacement Procedures
Circuit Board Foil Repair
Instructions on how to repair damaged copper traces on printed circuit boards.
Product Specifications
Application Range and Testing Requirements
Defines the scope of specifications and conditions for testing the TV.
Test Methods and Model Specifications
Details testing methodologies and general specifications for various markets.
HDMI Input Specifications
DTV and PC Modes
Specifies resolutions, frequencies, and pixel clocks for DTV and PC input modes via HDMI.
3D Mode Specifications
HDMI 1.4b 3D Input Modes
Lists supported 3D input modes for HDMI 1.4b, including resolution and proposed modes.
HDMI 1.3 and RF Input Modes
RF and USB/DLNA Input Modes
Specifies RF input for 3D and USB/DLNA movie/photo inputs for 3D.
Miracast, Widi, and 3D Input Modes
HDMI-PC Input Modes
Specifies input modes for HDMI-PC connections, including 3D support.
Adjustment Instructions
Application Range and Designation
Defines the scope and important designations for the adjustment procedures.
Automatic and Manual Adjustment Procedures
Outlines steps for automatic and manual adjustments, including LAN and Widevine checks.
LAN Port Inspection and Model/Serial Download
CI+ Key Checking Method
Details the method for checking CI+ keys via Instart menu and RS232C command.
WIFI MAC Address Check and EDID Data
EDID Data Specifications
Provides detailed EDID data for HDMI connections, differentiating between 2D and 3D modes.
White Balance Adjustment Procedures
Overview, Equipment, and Connections
Explains the objective, required equipment, and connection setup for white balance adjustment.
Adjustment Commands and Methods
Details the commands and methods (auto/manual) for performing white balance adjustments.
White Balance Reference and Local Dimming
Local Dimming Function Check
Step-by-step guide to verify the functionality of the local dimming feature.
Remote Control, Wi-Fi, and 3D Tests
3D Functionality Testing
Instructions for testing the 3D display function using specific patterns.
Standard Repair Process
A. Video Error Troubleshooting
Detailed steps for diagnosing and resolving video-related issues like no video, color problems, and screen artifacts.
B. Power Error Troubleshooting
Procedures for troubleshooting power-related faults, including no power and abnormal power off behavior.
C. Audio Error Troubleshooting
Steps for diagnosing and fixing audio problems such as no audio, distortion, or noise.
D. Function Error Troubleshooting
Guidelines for resolving issues related to remote control, external device recognition, and general function errors.
E. Noise Troubleshooting
Methods for identifying and resolving circuit or mechanical noise issues.
F. Exterior Defect Troubleshooting
Steps for addressing physical defects like damaged modules, cabinets, or remotes.
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