A. Video error
Established
date
Revised date
Error
symptom
Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Back Light
On with naked eye
On
Y
N
Check Power board
13.2.V etc.
Normal
voltage
Y
N
Replace T-con/Main
Board or module
Repair Power
Board or parts
Check Power Board VLED 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
No video/ Normal audio
☞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, Each Cable for Panel, Speaker Cable, IR B/D Cable,,,)
Error Check LED Driver
Board by LED indicator
LED
Driver B’D
error
Replace LED
Driver BD
Y
N
End
Standard Repair Process
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