Ensure no liquid has spilled on it.
remove keyboard (should be perhaps a screw on the bottom to undo, as well as clips around the keyboard on top, slightly hidden... search for "how to remove keyboard" on your model) -be very careful as the cable connecting the KB to computer can be fragile. Now try removing and then re-connecting the cable.
Probably none of this will fix it (if the KB wasn't wet and then dried now, by a miracle ;) and you will be able to find a very good price for a used, or new, KB online! ..for the time-being, use an external KB.
SOURCE: Monitor not working on Dell Inspiron laptop. Inspiron 1501 laptop
just follow the given link ur problem will bw solved
http://www.experts-exchange.com/Hardware/Q_21896519.html
SOURCE: Dell Inspiron 1501 laptop screen will not work.
If you hear the hard drive spinning and you think Windows is working but you can't see an image then :-
You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
To determine if you have a LCD screen or video card problem, read this and follow the instructions.
Defective CCFL backlight, it may have the following symptom:
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp
Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.
Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.
SOURCE: Dell 1501 Error- AC Adapter is not recognized
myabe the battery is faulty have you tried replacing it?
Testimonial: "Don't have an extra battery to test so was hoping the error was causing the battery not to charge. "
SOURCE: ho i unlock my dell inspiron 1501 laptop
You may have problems, here is the best information i've seen
http://www.fixya.com/support/r3743393-ve_lost_or_forgotten_windows_password
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