Read LG 42LH301C (CHASSIS:LD91A) Service Manual online
Color
error?
Y
N
Check
and replace
Link Cable
(LVDS) and
contact
condition
Link Cable
(LVDS) and
contact
condition
Y
N
Replace Main B/D
Color
error?
Check error
color input
mode
color input
mode
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
-External Input
-COMPONENT
-RGB
-HDMI/DVI
Y
External device
/Cable
normal
External Input/
Component
error
Check
external
device and
cable
external
device and
cable
Y
External device
/Cable
normal
RGB/
HDMI/DVI
error
Check external
device and
device and
cable
Replace Main B/D
Replace Main B/D
N
N
A. Video error
Color error
N
Y
End
Replace module
Request repair
for external
device/cable
Replace
T-Con
Board
And Adjust
VCOM
T-Con
Board
And Adjust
VCOM
N
Y
Color
error?
LGD Module
Only
Other Module
Color
error?
Check Test pattern
Standard Repair Process
Established
date
Revised date
2008. 3 .05
4/13
LCD TV
Error
symptom
4
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