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

A20 A21+A18

Disconnection
Established

date

Revised date 8/16

LCD TV Error

symptom

Standard Repair Process

8

2013.01.31

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