LG 43LF510A Service Manual page 35

Standard Repair Process
Error Symptom
Content
No audio
Screen normal
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Only for training and service purposes
C. Audio Error
No audio / Normal video
☞A15
Check user
Connection
Connec
from Main 
tion
Speaker Cable
N
Insert wafer SPK Cable
Normal
Audio
Y
End
Y
Replace Speaker
or Main B/D
N
Established date
Revised date
LGE Internal Use Only
9/14