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 13.2V of
Power Board(Pin No.5)
Normal
voltage
Y
N
Replace T-con Board
or module
And Adjust VCOM
Repair Power
Board or parts
Check voltage of Power Board between LED+ and LED-
(LED+/- voltage depends on the Power B/D spec)
Normal
voltage
Y
Replace Inverter
or 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
Standard Repair Process
Revised date
1/13
A. Video error
No video/ Normal audio
☞A4 ☞A1
☞A2
☞A7 & A3
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D↔ Power B/D, LVDS or EPI Cable, Speaker Cable, IR B/D Cable)
2
Error symptom
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