LG 43LF63 Series - C. Audio Error: No Audio;Normal Video

No audio
Screen normal
Check user menu
(Sound Out)
 Internal TV Speaker
Other
Device?
N
Y
Change into
Internal TV Speaker
Check 13.2V of
Power Board
(pin no. 7/8)
Normal
Voltage?
Y
N
Replace Power Board
and repair parts
Y
N
Replace MAIN Board
End
C. Audio error
No audio/ Normal video
☞A24 ☞A25
Connection?
Established
date
Revised date
8/13
Standard Repair Process
9
Check Speaker
connection
Connect speaker or
connector properly.
Check and replace
speaker or connector
N
Y
Normal
Audio?
End
N
Y
Normal
Audio?
End
Error symptom
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