LG 65UH950V - A. Video error

Screen
normal?
Y
N
Check the
lock Signal of
Vx1 or EPI
N
Y
Check and
replace Link
Cable
Normal?
Y
N
Screen
normal?
Replace Main/T-con B/D
(adjust VCOM, If need)
Replace
Main B/D
End
Vertical/Horizontal bar, residual image, light spot
A. Video error
Vertical / Horizontal bar, residual image,
light spot, external device color error
☞A8
External device screen error-Color error
External
Input
error
Connect other external
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
N
Y
Replace
Main/T-con
B/D
Screen
normal?
Check screen
condition by
input
-External Input
-Component
-HDMI/DVI
Request repair for
external device
Component
error
HDMI/
DVI
- Connect other external
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
- HDMI ULTRA HD Deep
Color menu off
Replace
Main /T-con
B/D
Screen
normal?
N
Y
Check S/W Version
Y
N
Check
version
S/W Upgrade
Y
N
Normal
screen?
End
Y
N
Replace
Module
Screen
normal?
End
Established
date
Revised date
5/16
Error
symptom
Standard Repair Process
☞ A7
Check Test pattern
5
Replace module or
T-con B/D(Vx1)
※ All Settings  General  HDMI ULTRA HD Deep Color  On/Off
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