LG 32LF550U - C. AUDIO ERROR; Audio Error Diagnosis and Resolution

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