Question about HP Compaq dx2250 Microtower - Get 3 desktops for the price of 2 until 123107

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Screen turns blank all of sudden and works normal after switching of the system for 1 hr or so.

Hi I bought hp pavilion dv9000 17' laptop around 18 months back. It was all fine till last month, now i have frequent issue with screen as it goes blank all of sudden. It becomes normal after i switch of the system for about 1 hr or so.

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  • Anonymous May 12, 2009

    hi, thanks for the input
    but I dont have any of faulty CCFL symptom. Display goes all blank and sometimes backlight is on and no display on the screen!?

    Vijay
    Note: This is not happening when screen saver is switched on.

  • Renierf May 11, 2010

    Does this happen when your screensaver activates or at any time?

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  • HP Master
  • 32,281 Answers

You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display or appear black.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

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 May 12, 2009

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