LG 19LS350S Service Manual page 42

Standard Repair Process
LCD TV
symptom
☞A7
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
☞A10
Check Test pattern
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Only for training and service purposes
A. Video error
Error
☞ A8/ A9
※ Check
and replace
Y
Color Link 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
2012. 01 .14
date
Revised date
Y
Color
error?
N
End
External device
Y
Replace Main B/D
/Cable
normal
N
Request repair
for external
device/cable
N
Y
External device
/Cable Replace Main B/D
normal
5/14
Replace module
LGE Internal Use Only