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Standard Repair Process
Error
LED LCD TV
symptom
No audio
Screen normal
C. Audio error
No audio/ Normal video
☞A22
Check user
menu >
Off
Speaker off
Y
Cancel OFF and describe
Check
Speaker
disconnection
☞A23
Check audio B+
N
20V or 24V of
Power Board
Replace Power Board and repair parts
N
Disconnection
Y
Replace Speaker
8
Established
2009 . 7. 29
date
2009. 9 .01
Revised date
Y
Normal
voltage
N
Replace MAIN Board
End
ⓒ LG Electronics. Inc.2009
Electronics 6-3
8/13
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