LG 32SE3B-BE Service Manual page 42

Standard Repair Process
Error
Signage Monitor
symptom
Vertical/Horizontal bar, residual image, light spot
☞A8
Check color condition by input
-External Input
-HDMI / RGB / DVI
☞A12
Check Test pattern
External device screen error-Color error
Check S/W Version Check
version
S/W Upgrade
Normal
screen?
End
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A. Video error
Vertical / Horizontal bar, residual image,
light spot, external device color error
Check external
Y
Screen device
normal? connection
condition
N
Replace
module
Check screen
N
condition by input
-External Input
-HDMI / RGB/ DVI
Y
N
Y
☞ A10
Check and
Y
replace Link
Normal?
Cable
N
Request repair
for external
device
External
Input
(Check normal operation of
error
External Input, Component,
Generator ,Set-top Box etc
RGB
error
(Check normal operation of
External Input, Component,
HDMI
Generator ,Set-top Box etc.
DVI error
13
Established
2014.06.10
date
Revised date
N
Screen
Replace Main B/D
normal?
Y
End
Connect other
external device
and cable
Screen
normal?
and HDMI/DVI/RGB by
connecting Jig, pattern
.
Request repair for
external device
Connect other external
device and cable
Screen
and HDMI/DVI/RGB by
normal?
connecting Jig, pattern
5/13
Replace
Module
N
Screen
normal?
Y
End
N
Replace
Main B/D
Y
Y
N
Replace
Main B/D
LGE Internal Use Only