No audio
Screen normal
Check user m
enu >
Speaker off
Off
N
Y
Cancel OFF
Check audio B+ A
13V of Power Boar
d
Normal
voltage
Y
N
Replace Power Board and repair parts
Check Speake
r disconnectio
n
N
Y
Replace Speaker
Replace MAIN Board
End
C. Audio error
No audio/ Normal video
☞
A20
☞
A21+A18
Disconnection
Established
date
Revised date
8/16
Error
symptom
Standard Repair Process
8
Содержание 50UH5500 65UH5500
Страница 63: ......
Страница 66: ...Overview for 16 ULTRA HD Model K2Lp Hardware ...
Страница 68: ...LCD TV Repair Guide 16 years New Models Applicable Model UH55 ...
Страница 73: ...2 K2Lp Block Diagram Internal LGE Confidential ...
Страница 82: ...TROUBLE SHOOTING GUIDE ...
Страница 110: ...Appendix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 ...