LG OLED55BXPUA

Normal
Voltage?
Check Power Board
output to Main (20V, 12V )
No Video /
No audio
Check and replace
Main B/D
Y
Replace Power B/D
or repair parts
N
End
Standard Repair Process
No video / No audio
☞A10/A11
Established
date
Revised date
Error
symptom
2
A. Video error
Copyright © 2020 LG Electronics Inc. All rights reserved.
Only for training and service purposes.