LG 32LH500B Service Manual page 28

Standard Repair Process
Error
LED TV
symptom
→ abnormal audio/discontinuation/noise is same after "Check input signal" compared to No audio
Check input
signal
Signal
-RF
Normal
-External Input
signal
Audio error
Wrecked audio/ discontinuation/noise
Y
N
(When RF signal is not
received)
Request repair to external
cable/ANT provider
Check and replace
Wrecked Audio/
speaker and
Discontinuation/Noise
for all audio connector
Wrecked Audio/
Replace Main B/D
Discontinuation/Noise
only for ATV
Established
2016.03.07
date
Revised date
A8
Check amplifier
power +AMP_Power(12V)
Normal
Voltage
Replace Power B/D
9/12
Y
N
Replace Main B/D