Color Error - LG 65UH8500 Service Manual

Standard Repair Process
symptom
☞A6
Check color by input
-External Input
-COMPONENT
-AV
-HDMI
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Only for training and service purposes
A. Video error
Error
☞ A7
☞A8
Y
Color
Check
error?
Test pattern
N
Check error
color input
mode
External Input/
Component

Color error

※ Check the V
Y
x1 or EPI Cable
Color
and Connector
error?
And Replace
Link Cable
N
Check
external
device and
error
cable
Check external
HDMI
device and
error
cable
※ All Settings  General  HDMI ULTRA HD Deep Color  On/Off
4
Established
date
Revised date
Color
Replace Main B/D
error?
N
End
External device
Y
/Cable Replace Main/T-con B/D
normal
N
Request repair
for external
device/cable
N
External device
/Cable
normal
Y
Check the
Menu
HDMI ULTRA HD
On?
Deep Color menu
Y
4/16
Y
Replace module
Or T-Con B/D
N
Replace Main/T-con B/D
Menu Off and Re-Check
LGE Internal Use Only