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Standard Repair Process
Error symptom
No audio
Screen normal
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Only for training and service purposes
C. Audio error
No audio/ Normal video
☞A15
Check user
TV
Menu Audio
Speaker
Sound Out
N
Select TV Speaker
Check
Speaker
connection
☞A16
Y
Check audio 13.2V
of Power Board
Replace Power Board and repair parts
N
Disconn
Replace Main Board
ection
Y
Replace Speaker
Established
date
Revised date
Normal
Y
Voltage
N
End
9/14
LGE Internal Use Only
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