Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Vx1 lock
voltage
0V
Y
N
Check Power
Board (Main)
20V, 12V etc.
Normal
voltage
Y
N
Replace Main Board
Repair Power
Board or parts
Check Power Board
(Module) 23V output
Normal
voltage
Y
Replace module
N
Repair Power
Board or parts
End
Always check & record S/W Version and White
Balance value before replacing the Main Board
Replace Main Board Re-enter White Balance value
※Precaution
Established
date
Revised date
1/16
A. Video error
No video/ Normal audio
☞A9
☞A9
☞A4 & A2
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D↔ Power B/D, Vx1 Cable, Speaker Cable, IR B/D Cable,,,)
1
☞A1
Standard Repair Process
Error
symptom
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