Question about Compaq Presario 700 470024-192 Notebook

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Screen displays intermittently

My laptop screen shorts out most of the time....help

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First, plug a external monitor and toggle the screen to discard configuration or software problems. If the image displays correctly you have a problem either in the LCD screen or its connection cable.
Open the bezel and check for loose or damaged connection cable. Look specially next to the hinge.
In case the problem is not the cable you might have to get a new LCD. You can have replacement parts and instructions here:

http://www.piezas.biz/epages/wwwpiezasbiz.sf/en_GB/?ViewObjectID=56222

Posted on Jul 06, 2008

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Posted on Jan 02, 2017

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The next time your laptop screen is messing up, try to hook the laptop up to an external monitor. If the picture is bad on the monitor too, you have a laptop video card issue. If the picture is good on the external monitor, then you have a problem with your laptop LCD/ inverter.

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You may have a defective CCFL backlight, it may have the following symptom: Screen flashes on and off or displays reddish pink hue. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickers 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 replace the CCFL lamp.
To determine if the video card or the LCD is faulty, connect an external monitor to your laptop and power the monitor up first then the laptop, 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. It could be a faulty inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out, usually the CCFL lamp fails before the inverter.
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Check out LCD Parts for service, parts, and DIY info Use this link to their WEB site: -
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