iMac Rev A Black Screen

Discussion in 'iMac' started by Copeland, Jun 22, 2009.

  1. Copeland macrumors newbie

    Joined:
    Feb 26, 2009
    Location:
    San Antonio, TX
    #1
    Bought one and it fires up, LED glows, but the screen does not turn on.

    After about a minute, the fans kick in on high speed.

    I've searched, but cant find an answer.

    Also tried to the reset by holding down option, command, p +r
     
  2. Muncher macrumors 65816

    Muncher

    Joined:
    Apr 19, 2007
    Location:
    California
  3. Copeland thread starter macrumors newbie

    Joined:
    Feb 26, 2009
    Location:
    San Antonio, TX
    #3
    I doubt a 4 year old machine is still in warranty. Trying to fix myself
     
  4. Muncher macrumors 65816

    Muncher

    Joined:
    Apr 19, 2007
    Location:
    California
    #4
    Aha, I thought you meant Rev. A aluminum iMac. Perhaps there is a short on your logic board? The screen does not turn on, but a temp. sensor senses dangerous heat levels, so all fans come on. If that's the truth, there's little you can do to fix it. Even if you open it up and find whatever went wrong, the affected parts would likely be damaged.
     

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