LG 42LB5800-SB - Page 52

C. Audio error
Established
dt
Error
2014 1 2
Standard Repair Process
C.
Audio
error
No audio/ Normal video
d
a
t
e
Revised date
8/13
LCD TV
Error
symptom
2014
.
1
.
2
No audio
Screen normal
Check user
menu >
TV
Speaker?
Y
Check audio B+ 24V
of Power Board
Normal
voltage
Y
☞A24 ☞A25
Screen
normal
Sound Out
Speaker?
N
Change the TV Speaker
voltage
N
Replace Power Board and repair parts
Check Speaker
disconnection
N
Replace MAIN Board
EndDisconnection
Y
Replace Speaker / Cable
10 / 97
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