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Black screen just returned home from florida took my laptop out of the box turned it on and the screen is dark it worked fine in florida

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  • waynec1932 Apr 20, 2009

    i can just faintly see any thing on the screen

  • Thomas Marengi
    Thomas Marengi May 11, 2010

    Can you see any image on the screen whatsoever, albeit dark?

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  • 9 Answers

Two things. Inverter, or CCF tube. The CCF tube in a LCD is equal to a florescent lamp but is usually .05mm thick, and 103mm long and is placed (soldered in) at the base of the LCD screen. The inverted goes out more then the CCF, but it does happen.

The inverter in most notebooks are placed under the LCD like this pictured.
black screen - 44f6fef.jpg
Just below the base of the LCD is the inverter. This is a Gateway Notebook showing the location of the Inverter to the LCD. Best thing to do in these cases is to purchase a new inverter from the company who made your notebook as a new screen can cost over $100.

Posted on Apr 20, 2009

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My dell inspirion 6000 laptop screen goes black but sometimes I can see the windows screen but it's very dark. When I attach it to a desktop monitor it works fine but the laptop is still dark. Sometime the...


The back light is the whole of the screen, the screen is illuminated by a CCFL lamp (fluro tube) on the bottom of the screen. A inverter supplies high voltage to this CCFL lamp.
If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :-
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Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

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