Question about HP Pavilion dv4000 Notebook

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Screen goes black on my hp pavilion dv4000 notebook

When my laptop is first turned on, the screen comes on for a few seconds and then goes black. The computer still runs but the screen doesn't show a picture. There is a sleep button on the computer. whenever you press it, the screen comes back on for 1 to 2 seconds then it goes out again. I took my computer to a local repair shop and they tried replacing the inverter and that did not work. They told me the problem was more than likely the LCD screen itself. So now I am looking online for cheap replacement screens. My question is: can I be confident the problem is actually the screen or might it be something with the sleep button/sensor? I want to be sure before I spend money on a new screen.

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  • blopez0487 Jun 03, 2009

    all of the hibernate/sleep settings are turned off. and the screen saver is turned off. so it isn't any of the settings.

  • blopez0487 Jun 03, 2009

    yes, it works with an external monitor and the shortcut function using the F-keys also works. Anymore thoughts? Thank you.

  • blopez0487 Jun 03, 2009

    Thank you for your help

  • blopez0487 Jun 04, 2009

    I tried HP support, and the service rep didn't pinpoint the problem. But he said if it was the sleep button it would probably be around 300 to fix, and if it was the lcd probably around 400.

    So you don't think it's the LCD? I didn't either because i still got picture when I would toggle the sleep button, but that is what the "experts" at the repair shop said.

  • blopez0487 Jun 04, 2009

    thanks for the suggestions and help!

  • Chris Hingee
    Chris Hingee May 11, 2010

    It is more likely the hibernate settings or the power settings that controls the LCD screen when the laptop is used with the battery and mains power.

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My hp dv 2000 shut down while working ang the by pressing the power key it resumes to the same position.
this problem repeats every 2-3 minute of working.
Please solve this problem.

Posted on Sep 09, 2009

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Try connecting an external monitor to the laptop, power up the monitor first then boot up the laptop. The video data will switch to the monitor automatically, check if the monitor dislays a normal image and see if the image stays on the monitor.
Also press and hold the Fn key and press the F4 key, these keys toggle the video output between the LCD screen and the video port.
Test to see if this functions correctly.
Get back to me with the results of the tests.

Posted on Jun 03, 2009

  • Chris Hingee
    Chris Hingee Jun 03, 2009

    I'm not convinced that the LCD screen is faulty because you see a normal image on the LCD screen. My guess is the sleep mode circuit and it would not be easy to fix.
    Try HP support and ask them if they can identify the fault and the costs to fix.

  • Chris Hingee
    Chris Hingee Jun 04, 2009

    The problem is the laptop is a few years old and the cost of the repair may not be worth it and it may be better to put the money towards a new laptop. The work around and the cheapest solution is to use an external monitor with the laptop.
    You could take a chance and buy a new LCD (cheaper) screen from www.lcdparts.net but if it turned out that it didn't fix the problem it would be a waste.

    If you decide to buy a new laptop, you can salvage the hard drive from the old laptop and put it into an USB hard drive adapter case and use it as a portable external hard drive.

    Sorry, I can't offer further assistance.

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Posted on Jan 02, 2017

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SOURCE: HP Pavilion dv4000 PC Notebook Power jack problem

I am sure that power jack is a part of your mother board but you can also replace a new power jack for your mother board. I know that if you send it to HP they will charge you 398$ for repairing the notebook. I will give you a link from where you can purchase a power jack with a nominal price. You can fix it by yourself or you can go to any electronic shop for foxing this. It is as simple as soldering the new power jack on the mother board.

The web link is:

http://www.laptopjacks.com/product/HP-Laptop-DC-Power-Jacks.html

Regards,
Krishna Teja

Posted on Mar 08, 2008

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