Question about HP Pavilion dv4000 Notebook

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Computer has no light

I have the dv 4000 laptop and it starts up great but you cannot see the screen its there but its very dark so you cannot work on it. Please help will it need to be repaired and how much would it cost or is it a simple thing to remedy. Thanks Jayney

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  • twinbury Sep 18, 2008

    The screen is working but is so dark I cannot read anything.

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  • 57 Answers

I cannot tell you how much it will cost. But from what you are saying, it looks like you are going to have to replace back light or the converter.

if you have your own tech. you can get the piece from ebay-new for less and it should take about 30 minutes to replace. if you live in the 07033 area I can tell you to go.

good luck

Posted on Jul 21, 2008

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Try the steps below to see if they will resolve this issue that you are having with your computer. If this does resolve the issue you can email me. My email address is listed below in my sigfile.

1) UNPLUG THE LAPTOP
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1 Answer

Hp Pavilion DV-4000 Screen


Are you saying the lcd screen is black? It seems like it booted up but nothing appears on the screen?

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.

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what i learn from compaq DV model they have some
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