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LG OLED77C3 Series User Manual

LG OLED77C3 Series
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Page #23 background image
Normal
voltage?
Check various
voltages of Power
Board (20V,12V…)
No Video/
No audio
Check and
replace
MAIN B/D
Y
Replace Power
Board and repair
parts
N
End
Standard Repair Process
No video/ No audio
☞A9
2
Established
date
Revised date
Error
symptom
A. Video error
Copyright © 2023 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.

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LG OLED77C3 Series Specifications

General IconGeneral
Screen Size77 inches
Display TechnologyOLED
HDRDolby Vision, HDR10, HLG
Smart TV PlatformwebOS
HDMI Ports4
Audio Output40W
Voice AssistantGoogle Assistant, Amazon Alexa
Refresh Rate120 Hz
Processorα9 Gen6 AI Processor 4K
VRRYes
USB Ports3
Resolution3840 x 2160
BluetoothYes
Wi-FiYes

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