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Chapter 9
MONITOR DISPLAY NOTHING (PC MODE)
LED is lighted
LED is lighting?
Is backlight on?
U13
no data out?
END
CONFIDENTIAL
DO NOT COPY
–
Trouble shooting
Start
N0
Yes
N0
N0
Yes
N0
Yes
Yes
N0
Yes
1.
Is Power board output
+5VSB &DV12?
2.
Is
J1
connector good?
3.
Is DC-DC OK?
4.
Is
U14
(+5V) working ok?
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)
1.Check
J1 PIN1
2.Is Power Board ok?
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
Page 9-1
File No. SG-0240
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