LG 84LM9600 Service Manual page 81

Standard Repair Process
LCD TV
symptom
☞A8
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
☞A12
Check Test pattern
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A. Video error
Error
☞ A10/ A11
※ 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
Established
2010. 12 .14
date
Revised date
Y
Color
Replace module
error?
N
End
External device
Y
Replace Main B/D
/Cable
normal
N
Request repair
for external
device/cable
N
Y
External device
Replace Main B/D
/Cable
normal
4/13
LGE Internal Use Only