N
Y
Check external
device
connection
condition
Y
N
Y
Replace
Module
Check color condition by input
Vertical/Horizontal bar, residual image, light spot
Request repair
for external
device
☞
A10
External device screen error-Color error
Connect other external
device and cable
(Check normal operation of
External Input, Component
and HDMI by connecting
Jig, pattern Generator,
Set-top Box etc.
N
Y
Replace
Main B/D
Check screen
condition by input
-External Input
(Component/AV/
HDMI)
Request repair for
external device
Check S/W Version
Y
N
S/W Upgrade
Y
N
Y
N
Replace
Module
☞
A7
☞
A8/ A9
N
End
Screen
normal
Screen
normal
Screen
normal
Screen
normal
Screen
normal
End
End
Check
Version
Normal
Screen
External
Input
error
Error Symptom
A. Video Error
Established date
5/13
Content
Vertical/Horizontal bar, Residual Image,
Light spot, External device Color error
Revised date
Standard Repair Process
Y
N
End
Copyright © 2019 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Summary of Contents for 24LM520S
Page 47: ......
