Early 2008 Macbook Pro - Screen is blank, what could be wrong with it?

Discussion in 'MacBook Pro' started by chazmuzz, Mar 4, 2012.

  1. chazmuzz macrumors newbie

    Feb 25, 2011

    My Macbook 4,1 (A1260) has developed a fault- the internal display does not display a picture at all. Here are some more helpful symptoms.

    • Everything functions as normal through an external display (ruling out the common nVidia card issue)
    • The backlight seems to be working. Adjusting the brightness of the internal display does make the blackness brighter and darker. (Does this suggest that the inverter is OK?)
    • The internal display is recognised in the arrangement tab of Display system preferences
    • I have tried zapping the PRAM with no effect
    • I did change the SuperDrive for a secondary internal hard drive. There is an outside chance that I damaged the nearby video cable connector but I doubt it as I am extremely careful, and the symptoms started a while after I made the swap
    • I put a new screen in and it didn't fix it! (The old one did have an area of dead pixels so I don't feel like I've thrown money away :))
    • I have checked to make sure that all the connections are firmly secured
    • The iSight camera works perfectly

    Please help, I love this laptop :(

    My next best guess is to replace the video data cable, but I can't find any suppliers based in the UK so it will be a long and expensive wait

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