LG 55G2 Service Manual page 89

Standard Repair Process
LCD TV
☞A9
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
☞A12
Check Test pattern
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A. Video error
Error
symptom
☞ A10
※ Check and
replace Link
Y
Color Cable
error? (LVDS) and
contact
N
condition
Check error
color input mode
External Input/
Component
error
RGB/
HDMI/DVI
error
Color error
Y
Color
Replace Main B/D
error?
N
Check
external
device and
cable
Check external
device and
cable
37
Established
2012.01.16
date
Revised date
Y
Color
Replace module
error?
N
End
External device
Y
/Cable Replace Main B/D
normal
N
Request repair
for external
device/cable
N
Y
External device
Replace Main B/D
/Cable
normal
2012.03.21
LGE Internal Use Only