LG OLED55B7A - User Manual

P/NO : MFL69826603 (1706-REV01)
CHASSIS : EA71B
MODEL : OLED55/65B7P OLED55/65B7P-U
MODEL : OLED55/65B7A OLED55/65B7A-U
OLED TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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 © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONFIDENTIAL

Summary

SAFETY PRECAUTIONS

General Guidance

General advice for safe servicing and component handling.

Leakage Current Cold Check

Procedure to check AC leakage current with the unit unplugged.

Leakage Current Hot Check

Procedure to check AC leakage current with the unit plugged in.

SERVICING PRECAUTIONS

General Servicing Precautions

Rules for handling components, tools, and cleaning during servicing.

Electrostatically Sensitive (ES) Devices

SPECIFICATION

SOFTWARE UPDATE

USB Update

Network Update (NSU)

BLOCK DIAGRAM

EXPLODED VIEW

DISASSEMBLY GUIDE

TROUBLE SHOOTING GUIDE

A. Video error

Troubleshooting steps for video-related issues like no video or picture problems.

B. Power error

C. Audio error

D. Function error

E. Noise

F. Exterior defect

LG OLED55B7A Specifications

General

Brand	LG
Model	OLED55B7A
Category	OLED TV
Language	English