Question about HP Pavilion dv9000z Notebook

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Hp 9720us note book has black screen. if I connect another montior it works fine, everything runs fine. Hp says it might be something to do with wireless.? This is my third laptop with problems in 15months I am two days out of warranty and HP refuses to help. I've sent it to a local shop but he cannot find any fix for it ? could this be a firmware problem ?

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  • jmattioli Mar 06, 2009

    thank you I will pass on that information.

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You should try updating the BIOS. You can find the latest BIOS on HP.com. To find the correct modell search for the modelnummber. You can find it under the unit on a white lable. It will look something like this AA111BB#CCC. Then go to software and drivers downloads and chose operating system. You should find the latest BIOS somwhere on the page.

If this doesnt help it is either a defective mainboard or LCD panel. So the unit will need service unless you can change the parts yourself.

Posted on Mar 06, 2009

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Can you see a slight image?
As you can see an image on an external monitor, this means your video card is OK.
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.

Posted on Mar 06, 2009

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This problem is the Display...everything is good.

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Posted on Mar 06, 2009

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