N
Y
Check external
device
connection
condition
Y
N
Check and
replace Link
Cable
Y
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
☞A10
External device screen error-Color error
Connect other external
device and cable
(Check normal operation of
External Input, Component
and HDMI by connecting
Jig, pattern Generator,
Set-top Box etc.
N
Y
Replace
Main B/D
Check screen
condition by input
-External Input
-Component
-RGB
-HDMI/DVI
Request repair for
external device
Connect other external
device and cable
(Check normal operation
of External Input,
Component, HDMI by
connecting Jig, pattern
Generator ,Set-top Box
etc.
Replace
Main B/D
N
Y
Check S/W Version
Y
N
S/W Upgrade
Y
N
Y
N
Replace Main B/D
Replace
Module
Established
date
Revised date
6/14
LCD TV
Error
symptom
Standard Repair Process
☞A7
☞ A8/ A9
Check Test pattern
2012. 01 .14
N
End
Screen
normal
Screen
normal
Screen
normal
Screen
normal
Screen
normal
Screen
normal
End
End
Check
Version
Normal
Screen
External
Input
error
Compo
nent
error
HDMI
error
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