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No audio
Screen normal
Check user
menu >
Speaker off
Off
N
Y
Cancel OFF
Check DC24V from
Adapter
Normal
voltage
Y
N
Replace Adapter
Check Speaker
disconnection
N
Y
Replace Speaker
Replace Main B/D
End
C. Audio error
No audio/ Normal video
☞A15
☞A4
Disconnection
Established
date
Revised date
9/14
LCD TV
Error
symptom
Standard Repair Process
2013. 01 .09
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