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Standard Repair Process
Error
symptom
No audio
Screen normal
Copyright
2016 LG Electronics Inc. All rights reserved.
Only for training and service purposes
C. Audio Error
Audio X / Video O
☞A11
Check menu >
Sound Out set
Correct
CORRECT output
Set correct output
Check Speaker
disconnection
☞A12+A9
Check audio B+ 13V
Y
of Power Board
N
Replace Power Board and repair parts
Disconnection
Y
Replace Speaker
8
Established
date
Revised date
Y
Normal
voltage
N
N
Replace MAIN Board
8/14
End
LGE Internal Use Only
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