LG 55UK6700PVD Service Manual page 32

Standard Repair Process
Error
symptom
No Video/
No audio
A. Video error
No video/ No audio
☞A18
Check various
Normal
voltages of Power
voltage?
Board (13.2V...)
Replace Power
Board and repair
parts
Established
Revised date
Check and
Y
replace
MAIN B/D
N
2
date
End
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes