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LG OLED55B8STB

LG OLED55B8STB
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P/NO : MFL70425427 (1807-REV00)
CHASSIS : EB82B
MODEL : OLED55B8STB
OLED65B8STB
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
OLED TV
SERVICE MANUAL
CONFIDENTIAL
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
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LG OLED55B8STB Specifications

General IconGeneral
Screen Size55 inches
Display TypeOLED
Refresh Rate120 Hz
Audio Output40W (2.2 Channel)
Smart TVYes
Operating SystemwebOS
HDMI Ports4
USB Ports3
Ethernet PortYes
Wi-FiYes
BluetoothYes
Resolution3840 x 2160
HDR SupportDolby Vision, HDR10, HLG
Processorα7 Gen 2 Intelligent Processor

Summary

Safety Precautions

Servicing Precautions

Troubleshooting

Video Error Troubleshooting

Troubleshooting steps for video issues.

Power Error Troubleshooting

Troubleshooting steps for power issues.

Audio Error Troubleshooting

Troubleshooting steps for audio issues.

Function Error Troubleshooting

Troubleshooting steps for various functions.

Detailed Troubleshooting Procedures

Vx1 Lock BDP Check

Procedure to check Vx1 lock and BDP status.

White Balance Adjustment

Steps for checking and setting white balance.

Link Cable (Vx1) Reconnection Check

Checking the Vx1 cable's connection.

Adjustment Test Patterns

Using test patterns for diagnosis.

Power Error Details

Power Indicator Check

Checking the status of the power indicator LED.

Input Voltage & ST-BY Check

Checking input voltage and ST-BY status.

Audio Error Details

No Audio Menu Check

Checking audio settings via the menu.

Speaker and Voltage Check

Checking speaker connections and voltage.

Function Error Details

Remote Control Operation Check

Verifying remote control functionality.

Wi-FiMotion Remote Check

Checking Wi-Fi and motion remote operations.

Factory SVC Remote Control Guide

Accessing InstartAdjust Menu

Steps to access special service menus.

Post-Replacement Checks

Checks to perform after main board replacement.

Smart Jig Power Diagnosis Guide

Smart JIG Voltage Settings

How to set the correct voltage for the Smart JIG.

Power Board Diagnostic Methods

15 Y OLED Diagnostic Method

Diagnostic steps for 15Y OLED power boards.

16 Y OLED(B6) Diagnostic Method

Diagnostic steps for 16Y OLED(B6) power boards.

16 Y OLED(C6) Diagnostic Method

Diagnostic steps for 16Y OLED(C6) power boards.

16 Y OLED(E6) Diagnostic Method

Diagnostic steps for 16Y OLED(E6) power boards.

16 Y OLED(G6) Diagnostic Method

Diagnostic steps for 16Y OLED(G6) power boards.

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