Vertical/Horizontal Bar, Residual Image, Light Spot - LG 32LH550B Service Manual

Standard Repair Process
Error Symptom
LCD TV
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
S/W Upgrade
A. Video Error
Vertical/Horizontal bar, Residual Image,
Light spot, External device Color error
Check external
Y
Screen
device connect
normal
ion condition
N
Replace M
odule
Check screen co
ndition by input
Y
Check
-External Input
Version
(Component/AV/
HDMI)
N
N
Normal
Screen
Y
End
☞ A8/ A9
Check and rep
Y
Screen
lace Link Cabl
normal
e
N
Request repair
for external de
vice
Connect other external dev
External (Check normal operation o
Y
Input er f External Input, Compone
ror nt and HDMI by connectin
g Jig, pattern Generator, S
N
End
Established date
Revised date
N
Screen Replace Main B/
normal D
Y
End
ice and cable
Screen
normal
et-top Box etc.
Request repair for ex
ternal device
2016.01.29
6/14
Replace
Module
N
Screen
normal
Y
End
N
Replace
Main B/D
Y