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LG 43SM5KD-BH Service Manual page 17

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Standard Repair Process
Error
Monitor Signage
symptom
Check S/W
Version
Y
Check
S/W Upgrade
version
N
☞A6
End
Check color by input
-HDMI / RGB / DVI / DP
A. Video error
Color error
Y
Normal
End
screen?
N
All video
error
Y
Color
error?
Error only
for specific
input
☞ A7
※ Check and
Y
replace Link
Color
Cable
error?
(LVDS) and
N
contact
condition
Check
external device
Y
external
/cable
device and
Normal?
cable
N
Request repair
for external
device/cable
3
Established
date
Revised date
Color
Replace Main B/D
error?
N
End
Replace Main B/D
Copyright ⓒ 2017 LG Electronics Inc. All rights reserved.
Only training and service purposes.
3/11
Y
Replace module

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