LG 32LG2100 Service Manual page 34

Standard Repair Process
Error
LCD TV
symptom
Check user
No audio
menu >
Screen normal
Speaker off
C. Audio error
No audio/ Normal video
Check audio B+
N
Off 20V or 24V of
Power Board
Y
Cancel OFF and describe
Check
Disconnection
Speaker
disconnection
Replace Speaker
8
Established
date
Revised date
Y
Normal
voltage
N
Replace Power Board and repair parts
N
Replace MAIN Board
Y
2008. 3 .05
8/13
End