Question about HP Pavilion DV5Z PC Notebook

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HP pavilion notebook screen turns black after flickering

Sometimes my screen will flicker, going from dim to brighter and then it will turn black. The monitor is not completely shut off, however, because at an angle, I can still see what webpage I have on or whatever I was doing. It just looks like the light went off. I usually just press the power button to put it on standby and when I touch the keyboard, the screen will come back on with light. Sometimes it will turn black again right away, sometimes not. It's random. I've only had this laptop for about 8 months. Do I need to send it out for repair?

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You most likely have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
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 Jun 02, 2009

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Posted on Jan 02, 2017

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