LG 32LH500D - Audio error - No audio

Standard Repair Process
Replace amplifier or Replace main board
Check mute control
circuit normal it
should be high-> (AMP_EN)
A8
Check amplifier
power
+AMP_Power
Normal
Y
Voltage
N
Y
N
Check
Speaker
disconnection
Disconn
ection
Y
N
Replace MAIN Board
End
LED TV
Error
symptom
Audio error
Established
date
2016.03.07
No audio
Revised date
8/12
Replace Speaker
No audio
Screen normal