Table of Contents
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OLED TV
SERVICE MANUAL
CHASSIS : EB21C / ED21C
MODEL : OLED55CS**A
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL71888105 (2208-REV01)
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 © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
OLED65CS**A
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Table of Contents
Related Manuals for LG OLED65CS A Series
Summarization of Contents
SAFETY PRECAUTIONS
General Safety Notices and Checks
Covers important safety notices, general guidance, and AC leakage current check procedures.
SERVICING PRECAUTIONS
Servicing, ES Devices, and Soldering Guidelines
Details general servicing precautions, handling ES devices, and proper soldering techniques.
SPECIFICATIONS
Application, Testing, and Model Details
Covers application range, test requirements, methods, and general model specifications.
Receiving Systems and I/O Details
Specifies receiving system standards and details for various input/output interfaces like HDMI and USB.
EXTERNAL INPUT SUPPORT FORMAT
HDMI Input Formats (DTV & PC)
Lists supported resolution, frequency, and pixel clock formats for both DTV and PC HDMI inputs.
SOFTWARE UPDATE
USB and NSU Update Methods
Describes procedures for updating TV software via USB drive and Network Software Update (NSU).
ASSEMBLY / DISASSEMBLY GUIDE
Disassembly Procedures Overview
Covers steps for disassembling the TV, starting with the back cover and proceeding to internal components.
TROUBLE SHOOTING GUIDE
Video Error Troubleshooting
Detailed steps for diagnosing and resolving various video errors like no video, color issues, and picture problems.
Power Error Troubleshooting
Steps to diagnose and fix 'No Power' and intermittent power on/off problems by checking indicators and voltages.
Audio Error Troubleshooting
Procedures to troubleshoot no audio, distorted, or noisy audio problems by checking settings and voltages.
Function Error Troubleshooting
Steps to resolve remote control, Wi-Fi connectivity, and MR22 (Magic Remote) operation problems.
External Device and Wi-Fi Issues
Diagnosing external device recognition errors and Wi-Fi connectivity problems.
Noise and Exterior Defect Resolution
Methods for identifying and resolving noise issues, and addressing exterior damage.
DETAILED REPAIR PROCEDURES
Component Checks and Adjustments
Detailed checks for components like Vx1 lock, tuner, and White Balance, plus version checks.
SYMPTOM EXAMPLES
Image, Main Board, and Module Issues
Examples of symptoms related to image quality, main board, and module failures, with causes and images.
SERVICE REMOTE CONTROL GUIDE
Remote Control Functions and Adjustments
Explains functions of service remote buttons and how to perform adjustments like White Balance.
WEBOS22 FEATURES AND USABILITY
Usability Guides and New Features Overview
Introduces webOS22 features and usability guides, including remote control and home screen comparisons.
WEBOS22 NEW FUNCTIONS
Key New Features Explained
Explains new webOS22 features like Family Care, Always Ready, Room to Room, Multi View, and ThinQ.
CUSTOMER INQUIRY GUIDES (CIC)
Room-to-Room and Mirroring Setup Guides
Guides for setting up Room-to-Room and mirroring functions, including IR Blaster and universal remote setup.
Multi View Functionality Guidance
Provides guidance on Multi View app compatibility, combination issues, and game dashboard functionality.
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