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Laptop screen will not light up

My Alienware laptop screen will not light up. If you use a flashlight or bright light you can see parts of the screen but makes for some real eye strain. Why is this, please help me

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  • Cam6381 Mar 04, 2009

    laptop screen will not light up

  • wolf_59 Mar 21, 2009

    dell latitude d630

    screen bipped and went dark as i was working

    can barely make out the lighter sections of the screen

  • Anonymous Apr 15, 2009

    screen will not light up

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It sounds like the inverter for the backlight has died.
They are about $100, unless you shop eBay. I just found one for my sister's AlienWare D9T for $36 with shipping.
The little rubber buttons around the screen must come off, they are just stuck on with sticky-stuff, but they are tenacious. Underneath there are small philips-head screws, you'll need to get a small set if you haven't already.
Then after the screws are out around the bezel (that's what the plastic around the screen is called) you'll have to carefully pop it off. There are several tabs around the edges, be careful not to break the tabs or the bezel. Be patient.
At the bottom of the screen, there is a narrow board with LEDs and buttons on it, and the large lump is the transformer used in the inverter to create the high-voltage AC required by the backlight tubes. There will be one or two small philips-head screws holding it in.
That is the board you'll need to replace. A big, big caution: on my sister's AlienWare, the connectors on the cables are really horrible. The plastic is crumbling, they are -very- difficult to remove without falling apart. If you break them, it is a -lot- more complex replacing those cables. Once you have to open the main part of a laptop, it starts reminding me of the puzzlebox in "Hellraiser".
I hope this helps, Steve Greenfield
Electronic Engineering Technician student
Electronic Technician 20+ years
CET Computers and Consumer Electronics
IPC-A-610D CIS Specialist

Posted on Feb 06, 2010

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Let's Diagnose only...

- Try to connect CRT Monitor if they have a display?
- if not you LCD screen have a problem.

Posted on Sep 25, 2008

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Posted on Jan 02, 2017

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