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Standard Repair Process
Error
symptom
No audio
Screen normal
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
C. Audio error
No audio/ Normal video
☞A24
Check user
menu >
Off
Speaker off
Y
Cancel OFF
Check Speaker
disconnection
☞A25
N
Check A13V of Power
Board
Replace Power Board and repair parts
N
Disconnection
Y
Connect Speaker
to Main cable
Established
2015. 06. 23
date
2015. 06 .23
Revised date
Y
Normal
voltage
N
Replace MAIN Board
End
8/13
LGE Internal Use Only
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