LG OLED48C2 Series Service Manual page 36

Standard Repair Process
Error
symptom
☞A6
Check color by input
-External Input
-HDMI
A. Video error
Color error
☞ A7
※ Check and
replace Link
Cable
Y
Color
(EPI or Vx1
error?
Cable) and
contact
N
condition
Check error
color input
mode
External Input
error
HDMI
error
Established
Revised date
Y
Color
Replace Main B/D
error?
N
Check external External
device and
device/Cable
cable normal
Request repair
for external
device/cable
Check external
External
device and device/Cable
cable normal
4
date
Y
Color
Replace module
error?
N
End
Y
Replace Main/T-con B/D
N
N
Y
Replace Main/T-con B/D