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
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