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Standard Repair Process
Error
symptom
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 and so on)
No video
Normal
Normal audio
Audio
N
Move to
No Video/No audio
※Precaution
☞A4 & A2
Always check & record S/W Version and White Balance value
before replacing the Main Board
A. Video error
No video / Normal audio
☞A1
Y
Check Vx1 lock
voltage
☞A10/A11
Check Power Board output
to Module.(20V)
Replace Power B/D
or repair parts
☞A10/A11
Check Power Board
Y
0V
output to Main.
(20V, 12V)
N
Normal
Y
Replace Module
Voltage
N
Replace Main B/D
1
Established
date
Revised date
Y
Normal
Replace Main B/D
Voltage
N
Replace Power B/D
or repair parts
End
Re-enter White Balance value
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Only for training and service purposes
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