Read LG 37LV370S-ZB / 37LV375G-ZC / 37LV375S-ZC / 37LV375W-ZC (CHASSIS:LD12B) Service Manual online
Screen
normal?
N
Y
Check external
device
connection
condition
device
connection
condition
Y
N
Check and
replace Link
Cable
replace Link
Cable
Normal?
Y
N
Screen
normal?
Replace Main B/D
Replace
module
module
Check color condition by input
-External Input
-Component
-External Input
-Component
-
RGB
-
HDMI/DVI
Check Test mode
RGB screen
RGB screen
End
Vertical/Horizontal bar, residual image, light spot
Request
repair for
external
device
repair for
external
device
Established
date
date
Electronics 6-3
Standard Repair Process
Revised date
2008. 2 . 1
LCD TV
A. Video error
Vertical/Horizontal bar, residual image,
light spot, external device color error
light spot, external device color error
5/13
☞154
External device screen error-Color error
External
Input
error
Connect other external
device and cable
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
N
Y
Replace
Main B/D
Main B/D
Screen
normal?
Check screen
condition by
input
-External Input
-Component
condition by
input
-External Input
-Component
-
RGB
-
HDMI/DVI
Request repair for
external device
external device
Component
error
RGB
error
HDMI/
DVI
Connect other external
device and cable
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
Replace Main B/D
Screen
normal?
N
Y
Check S/W Version
Y
N
Check
version
S/W Upgrade
Y
N
Normal
screen?
End
Error
symptom
symptom
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