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Standard Repair Process
Error Symptom
Content
Vertical/Horizontal bar, residual image, light spot
☞A7
Check color condition by input
- External Input
(Component/AV/HDMI)
☞A10
Check Test pattern
External device screen error-Color error
Check S/W Version
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Only for training and service purposes
Vertical/Horizontal bar, Residual Image,
Light spot, External device Color error
Check external
Y
Screen
device
normal
connection
condition
N
Replace
Module
Check screen
condition by input
Y
Check
-External Input
Version
(Component/AV/
HDMI)
N
S/W Upgrade
N
Normal
Screen
Y
End
A. Video Error
☞ A8/ A9
Check and
Y
Screen
replace Link
normal
Cable
N
Request repair
for external
device
External
Y
Input
error
N
End
Established date
Revised date
N
Screen
Replace Main B/D
normal
Y
End
Connect other external
device and cable
(Check normal operation of
External Input, Component
and HDMI by connecting
Jig, pattern Generator,
Set-top Box etc.
Request repair for
external device
2015.04.17
6/14
Replace
Module
N
Screen
normal
Y
End
N
Screen
Replace
normal
Main B/D
Y
LGE Internal Use Only
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