Screen
normal?
N
Y
Check
external
device
connection
condition
Y
N
Normal?
Y
N
Screen
normal?
Replace Main/T-con B/D
Replace
module
Check color condition by input
- External Input
- Component/AV
- HDMI
Vertical/Horizontal bar, residual image, light spot
Request repair
for external
device
A. Video error
Vertical/Horizontal bar, residual image,
light spot, external device color error
☞
A28
External device screen error-Color error
External
Input
error
Connect other external device
and cable
(Check normal operation of
External Input, Component,
AV and HDMI by connecting
Jig, pattern Generator ,Set-top
Box etc.
N
Y
Replace
Main/T-con
B/D
Screen
normal?
Check screen
condition by input
- External Input
- Component/AV
- HDMI
Request repair for
external device
Component/AV
error
HDMI
Connect other external
device and cable
(Check normal operation of
External Input, Component,
AV and HDMI by connecting
Jig, pattern Generator ,Set-
top Box etc.
Replace
Main /T-con
B/D
Screen
normal?
N
Y
Check S/W Version
Y
N
Check
version
S/W Upgrade
Y
N
Normal
screen?
Y
N
For LGD/BOE panel
Replace
Module
Screen
normal?
Established
date
Revised date
Error
symptom
Standard Repair Process
☞
A6
5
For other panel
End
End
End
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