LG 37LV370S Service Manual page 44

Standard Repair Process
Error
LCD TV
symptom
Vertical/Horizontal bar, residual image, light spot
Use Picture Test
Y
Color
error?
N
Check color condition by input
-External Input
-Component
-RGB
-HDMI/DVI
Check Test mode
RGB screen
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A. Video error
Vertical/Horizontal bar, residual image,
light spot, external device color error
Color
Replace Main B/D
error?
End
Y
Screen Check external
normal? device
connection
condition
N
Replace
module
Y
Replace
module
N
Y
Check and
Normal?
replace Link
Cable
N
Request
repair for
external
device
Established
2008. 2 . 1
date
Revised date
☞154
N
Screen
normal?
Y
End
Electronics 6-3
5/13
Replace Main B/D
LGE Internal Use Onl