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No audio
Screen normal
Check user
menu >
Speaker off Off N
Y
Cancel OFF
Check audio B+ 24V
of Power Board Normal
voltage
Y
N
Replace Power Board and repair parts
Check Speaker
disconnection
N
Y
Replace Speaker
Replace MAIN Board End
C. Audio error
No audio/ Normal video

A24 A25

Disconnection
Established
date
Revised date
LCD TV Error
symptom
Standard Repair Process
2012. 12 .06