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
24V, 12V,3.5V etc.
Normal
voltage
Y
N
Replace T-con/FRC
Board or module
And Adjust VCOM
Repair Power
Board or parts
Check Power Board 24V output
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 1/16
LCD TV Error
symptom A. Video error
No video/ Normal audio

A18 A1

A18

A4 & A2

First of all, Check whether all of cables between board is inserted properly or not.

(Main B/DPower B/D, LVDS Cable,Speaker Cable,IR B/D Cable,,,)

1

2013.01.31
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