When you turned it on does it seem like the laptop booted up all the way except the screen is black? Do you hear the fan running, the hard drive spinning and everything seems to be ok except the screen is black?
Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.
Plug in an external monitor and see if the display shows up on it. It can beany kind of monitor even the old big fat crt monitors as long as it has a vgacable to connect to your computer's vga port. If so that proves yourvideo card is ok. The video will show on most systems when you rebootwithout you having to do anything. Some systems will require you to hit the FN(Function key) + F1 thru F12. Hold down the FN key then hit the correctkey for displaying on the monitor (F1 thru F12). The correct key willnormally have CRT/LCD on it or it will have the icon of a display.
If you see no icons by shinning a flash light and the external monitor works,then your screen is bad. If you see no icons by shinning the flash lightand nothing shows on the external monitor, then most likely your video card isbad.
Thank Mr. Carroll! I did exactly what you said to do. I connected an external monitor to my lap top and it worked, I was able to read everything on my lap top and even go into some programs. I took a flash light and sing it on the lap top monitor and seen the icons on it, so with your expertise do you thank it is the Inverter or the screen? I'm a student at Devry and I want to be come an Electronic Computer Techninican and I will follow your instructions.
I would try the test of shining a flash light on the black screen to see if you see the icons. Maybe they sold you a bad inverter.
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I replaced the inverter like you said to do and that part work, but when the lap top booted up it came on and stayed on a vary short time and went back to the black screen, but it is still running. I have to turn it off and reboot it for it to come back on and then aging it goes black aging. so what could make it do that?
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