Chapter 9 Trouble shooting
MONITOR DISPLAY NOTHING (PC MODE)
Start
N0
LED is lighted
Yes
N0
LED is lighting?
Yes
N0
Is backlight on?
Yes
Yes
N0
U11 no data out?
Yes
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CONFIDENTIAL – DO NOT COPY
1.Is Power board output +5V?
2.Is J7 connector good?
3.Is
4. Is U6&U4 (3.3V) working ok?
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)
1.Check J7 PIN 14 2.Is inverter ok?
3.Is Power Board ok?
It means data to LVDS 1.Is J5 connecting OK? 2.Check J7 +5V&+12V 3.Is panel ok?
4.Check P3
5.Check analog input route
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