Question about Apple iMac 233Mhz/333Mhz Power Supply (Rev A) (p/n 661-2081) Power Supply

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IMac 233MHz Screen constantly refreshes

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  • gonnagitsum Mar 13, 2008

    Thanks for the info but I think it's more hardware as I've not loaded anything in over a year - was sitting in storage for almost a year

  • gonnagitsum Mar 14, 2008

    The screen does turn off and on - will be on an application, the screen will go black, then come back on - does this every couple of minutes - annoying as hell, but doesn't skip a beat running the application. Could be dust, could be the flyback transformer, could be the analogue board but will hope it just needs a good cleaning.
    I've never cracked the case on my iMac but have built a few custom PC's and seen my iMac apart in the shop so it can't be rocket science!

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  • 13 Answers

Could be a software problem.

Posted on Mar 13, 2008

  • brusi Mar 13, 2008

    Well than in that case I don't think that the screen is refreshing it might be turning off & on!
    I suggest to clean out all the hardware from dust and dry it out in case of moisture.

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Feb 13, 2008 | Apple iMac 233Mhz/333Mhz Power Supply (Rev...

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