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Standard Repair Process
Error
LCD TV
symptom
No audio
Screen normal
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2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
C. Audio error
No audio/ Normal video
☞A15
Check user
menu
Off
Speaker off
Y
Cancel OFF
Check
Speaker
disconnection
☞A16
Check audio B+
N
24V 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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