Black screen turn on all light are working but no display/black screen and not booting

Hi , Try to connect to an external Monitor and see if it can display ..This Black screen could be a an onboard video problem or just a simple memory problem.

When this happened was the laptop overly hot? If the laptop's head got too high it could have shutdown to protect itself. It wouldn't boot until the heat had disparate. Sit you laptop aside for about 30 minutes and see if it will boot then. If it does you might want to check out a cool mat.


http://www.amazon.com/gp/product/B008TO35G0/ref=sr_1_3?ie=UTF8&qid=1358444754&s=pc&sr=1-3

Try connecting the laptop to an external monitor and see if all is working Ok with that, if it is, then you may need to get the laptop display serviced - if it does the same on the external display, then try booting the laptop from a CD or DVD such as an OS install CD (Windows or Linux) or a boot utility CD such as Hiren's Boot CD - this will allow you to test whether the problem lays with your installed operating system or with the hardware. . . .
Note: do not go any further than the initial displays if using an OS install CD unless you are using a Linux Live boot CD which will not destroy your installed operating system. . . .See http://www.hirensbootcd.org/ to download a copy of Hiren's Boot CD to burn to a CD. . . .See http://www.ubuntu.com/download/ubuntu/download to download a copy of a Ubuntu (Linux) Live CD.

There may be a problem with your windows installation. Search Google for Hirens boot CD, it is a free download and should contain a live XP installation. When you turn on the computer tap the appropriate button to reach the boot menu, then insert the CD and select your CD drive. Once booted it should display a live XP.
Alternatively you may have your monitor set to an incompatible resolution. If tapping F8 won't display the advanced boot menu then try finding an auto setup on your monitor or change the resolution using the monitors controls. If the advanced boot menu does display then select low resolution mode.
Hope this helps,
www.PuterCare.com

Do you have an operating disc?Open cd/dvd rom drive put disc in close and restart follow on screen display it may or may not work but did with mine

Try using a light on the laptop and check if the images are clearer.

Try booting into safe mode by pressing F8 at boot up.

If the same happens there as well then you will have to change the backlight of the display.

It is recommended for you not to open up the display to change the display light as you may run into damaging the LCD itself.

Best would be to contact the manufacturer so that they can get the right part replaced with a similar one.

its a sensitive problem, 1st remove your CD-Rom drive then start your laptop, if consist then open the skrews of hard disk portion and remove it also then open your laptop it will display the screen.
otherwise contact your hardware doctor.
shafky

First of all, you have to check whether you can see video signal with surrounding light tilting the screen.
If you can see dim image, all you have to do is replace back-light inverter or fix it. Usually, the fuse is open and you can connect it by simple soldering.
If you can't see dim image, it is another problems.
Give it a try.

The sequence is:
a) The Dell bios splash screen is displayed,
b) the screen will go black,
c) the disk activity light will flash for about 5 - 7 seconds, then will remain off.
d) you force a power off,
e) wait a few seconds,
f) then turn the machine back on.
g) The bios splash screen is displayed,
h) then a black screen with white text is displayed, reporting that Windows was not shut down nicely and would I like to boot into safe mode or safe mode with networking, or others.
g1) If you choose Safe Mode, Windows will boot up successfully. If I restart, the computer will usually (probably) boot into Windows fine.
g2) If you choose Boot Normally, the computer will usually (probably) enter the black and hung state.
see if that helps and the if possible do a do a system restore to when the system was working correctly.

Try pressing FN and F7 to get the video back on your PC's screen.
If that do not work, you could have a defective LCD display or the back lights might be defective as well.