CONFIDENTIAL
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File No. SG-0204
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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 U1 (+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 VGASOG rout if analog
(SOG)
Is backlight on?
1.Check J1 PIN 1
2.Is inverter ok?
3.Is Power Board ok?
U14 no data out?
It means data to LVDS
1.Is J7 connecting OK?
2.Check J1 +5V&+12V
3.Is panel ok?
4. Check P3 D-sub Input correct
5.
Check analog input route
END
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