Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Vx1 lock
voltage
On
Y
N
Check Power board
output to Main.
(12V, 20V)
Normal
voltage
Y
N
Replace Main Board
Repair Power
Board or parts
Check Power Board output to Module (23.5V)
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
☞A9☞A1
☞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 or EPI Cable, Speaker Cable, IR B/D Cable,,,)
1
Standard Repair Process
A. Video error
Established
date
Revised date
2/18
Error
symptom
No video/ Normal audio
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