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Sony Laptop PCG-F450 Display

My display on my laptop has become tempermental working when it wants to. I have it hooked up to an external monitor because other wise I get nothing but a blank blank screen, however every so often the screen will work. What is causing this?

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  • mspattyjohns Jan 10, 2009

    You wrote "if you do a search for your model # and lcd inverter and see if you can find any...also you will be able to very faintly see what is on the screen althought it looks black..." I am sorry but what am I trying to find? I'm 51 and the tech mind has slipped away...Please explain. Thanks

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Usually it is the lcd inverter going bad...if you do a search for your model # and lcd inverter and see if you can find any...also you will be able to very faintly see what is on the screen althought it looks black...if that doesn't work then i may be the backlight in the lcd and a new screen may be needed.
Hope this helps

Posted on Jan 09, 2009

  • Terry Shackleton
    Terry Shackleton Jan 10, 2009

    you are looking for an inverter ...it is a small cuircut board that runs the backlight on the lcd ...it is located just behind the plastic at the bottom of the screen...but usually you can see a very faint image on the lcd screen if it is bad ...if you can see no image then the backlight is gone and may need a whole new screen .... try here http://www.sparepartswarehouse.com/Sony,... have a look any way if you don't know how to fix your self then better take it in....the inverter is about $80....a new screen is anywhere from $150 -$300 .

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