LG OLED77C2 Series - User Manual

P/NO : MFL71888102 (2202-REV01)
CHASSIS : E*21C
MODEL : OLED77C2***
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
OLED TV
SERVICE MANUAL
Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
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.

LG OLED77C2 Series Specifications

General

Brand	LG
Model	OLED77C2 Series
Category	OLED TV
Language	English

Summary

SAFETY PRECAUTIONS

SERVICING PRECAUTIONS

General Servicing Precautions

General guidelines and warnings for safe servicing practices.

Electrostatically Sensitive Devices

Precautions for handling components sensitive to static electricity.

Component Replacement and Repair

Procedures for replacing ICs, transistors, diodes, fuses, and repairing circuit boards.

SPECIFICATION

Application Range

Defines the scope of the specification for the E*21C chassis.

Requirement for Test

Outlines the conditions and parameters for testing TV components.

Test Method

Details the procedures for testing TV performance and specifications.

Model General Specification

Lists general specifications for different market regions and broadcasting systems.

SOFTWARE UPDATE

USB Download Procedure

Instructions for updating TV software via USB storage.

Automatic Network Update (NSU)

Steps to enable and perform automatic software updates over the internet.

Manual Software Update

Procedure for updating software when automatic updates are disabled.

BLOCK DIAGRAM

EXPLODED VIEW

ASSEMBLY; DISASSEMBLY GUIDE

Back Cover Disassembly Guide

Step-by-step instructions for safely removing the TV's back cover.

Back Cover Assembly Guide

Procedures for correctly reassembling the TV's back cover.

TROUBLE SHOOTING GUIDE

Video Error Troubleshooting

Guides for diagnosing and resolving video-related issues.

Power Error Troubleshooting

Steps to troubleshoot power-related problems like no power or auto-off.

Audio Error Troubleshooting

Procedures for diagnosing and fixing audio issues like no sound.

Function Error Troubleshooting

Guides for resolving issues with remote control, Wi-Fi, and other functions.