LG 55LB6500-um - Page 97

C. Audio error
No audio/ Normal video
Established
date
Revised date
8/13
LCD TV
Error
symptom
Standard Repair Process
2013. 11 .30
No audio
Screen normal
Check user
menu >
Speaker off
Off
N
Y
Check audio B+ 24V
of Power Board
Normal
voltage
Y
N
☞A24 ☞
A
25
Cancel OFF Replace Power Board and repair parts
Check Speaker
disconnection
N
Y
Replace Speaker
Replace MAIN Board
EndDisconnection
Replace
Speaker
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