LG 32LV355T Service Manual page 56

Standard Repair Process
Error
LCD TV
symptom
Vertical/Horizontal bar, residual image, light spot
☞A8
Check color condition by input
-External Input
-Component
-RGB
-HDMI/DVI
☞A12
Check Test pattern
External device screen error-Color error
Check S/W Version Check
version
Y
S/W Upgrade
Normal
screen?
Y
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?
normal? connection
condition
N
Request repair
Replace
for external
module
device
Check screen
condition by
input
N
-External Input
-Component
-RGB
-HDMI/DVI
N
Established
date
Revised date
☞ A10/ A11
Check and
Y
Screen
replace Link
normal?
Cable
N
End
External
Connect other external
Input
device and cable
error
(Check normal operation of
External Input, Component,
Component
RGB and HDMI/DVI by
error
connecting Jig, pattern
Generator ,Set-top Box etc.
RGB
Connect other external
error
device and cable
(Check normal operation of
External Input, Component,
HDMI/
RGB and HDMI/DVI by
DVI
connecting Jig, pattern
Generator ,Set-top Box etc.
5
2010. 2 .19
Replace
Module
N
Screen
Replace Main
normal?
B/D
Y
N
Screen
Replace
normal?
Main B/D
Y
Request repair for
external device
Y
N
Screen Replace
Main B/D
normal?
LGE Internal Use Only
5/13
N
Y
End