Normal
audio
Y
N
Move to
No video/No audio
No video
Normal audio
Check backlight on
with the naked eye
On
Y
N
Normal
voltage
Y
N
Replace T-con/Main B/D
or module
Check voltage from Power B/D to backlight
Normal
voltage
Y
N
Replace Power B/D
or repair parts
Always check & record S/W Version, White
Balance value before replacing the Main Board
Replace Main Board
Re-write Tool option, Area option and White Balance value
※
Precaution
Established
date
Standard Repair Process
Revised date
Error
symptom
A. Video error
No video / Normal audio
☞
A18
☞
A1
☞
A18
☞
A2& A4
First of all, Check whether all of cables between boards is assembled properly or not.
(Main B/D
↔ Power B/D, Vx1 or EPI Cable, Speaker Cable, IR B/D Cable and so on)
1
End
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