Established
d t
Error
A. Video error
2014 1 2
Standard Repair Process
date
Revised date
1/13
LCD TV
Error
symptom
A. Video error
No video/ Normal audio
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D
↔
Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable, ETC…)
2014. 1 .2
Normal
audio
Y
No video
Normal audio
Check Back Light
On with naked eye
On
Y
Check Power Board
12V,3.5V etc.
Normal
voltage
Y
Replace T-con Board
or module
And Adjust VCOM
☞
A4
☞
A1
(
,
, p
,
,
)
N
Move to No
video/No audio
N
N
j
Repair Power Board
or parts
Check Power Board 24V output
☞
A2
☞
A28
Normal
voltage
Y
Replace Inverter
or module
N
Repair Power
End
Repair Power
Board or parts
Always check & record S/W Version and White
Balance value before replacing the Main Board
Replace Main Board
Re-enter White Balance value
※
Precaution
☞
A7 & A3
3 / 97
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Summary of Contents for 42LB5800
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