CONFIDENTIAL
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DO NOT COPY
Page
9-
1
File No. SG-0264
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Chapter 9 Trouble shooting
MONITOR
DISPLAY
NOTHING
(PC
MODE)
Start
LED is lighted
1. Is Power board output
+5VSB &DV12?
2. Is
J1
connector good?
3. Is
DC-DC
OK?
4. Is
U14
(+5V) working ok?
LED is lighting?
It is in power saving
1.
Check video cable
2.
Is the timing supported?
3.
Check sync input
4.
Check VGA SOG rout if analog
(SOG)
Is backlight on?
1.Check
J1 PIN1
2.Is Power Board ok?
U13
no data out?
It means data to LVDS
1.Is
J8
connecting OK?
2.Check
J1
+5V & +12V
3.Is panel ok?
4.
Check
P5
D-sub Input correct
5.
Check analog input route
END
