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external monitor turns blue - Mac Applications & Software

I've got an Apple branded 19" monitor that it connected to the external video out of my iMac DV 400. Because the Apple monitor has a proprietary connector on the end, I had to install an adapter to standard VGA to connect to the iMac. I've had this setup for about a year and a half, and it's worked flawlessly. A few days ago, the 19" monitor turned blue, as if only the blue gun on the monitor was working. The video on the iMac CRT was fine. After a few minutes the blue only screen went away, and returned ...

  1. #1

    Default external monitor turns blue

    I've got an Apple branded 19" monitor that it connected to the
    external video out of my iMac DV 400. Because the Apple monitor has a
    proprietary connector on the end, I had to install an adapter to
    standard VGA to connect to the iMac. I've had this setup for about a
    year and a half, and it's worked flawlessly.

    A few days ago, the 19" monitor turned blue, as if only the blue gun
    on the monitor was working. The video on the iMac CRT was fine. After
    a few minutes the blue only screen went away, and returned to normal.
    This has been going on for several days, always turning blue for a
    varying amont of time and returning to normal. I've powered down the
    monitor; sometimes it works, sometimes it doesn't. Sometimes it works
    for a little while, then reverts to blue, then normal again. I've
    disconnected and re-connected the connector. I've powered down the
    iMac, and restarted OS X; nothing seems to halt this random activity.

    it seems to me, it's one of four things.

    1 Monitor tube is going out. Needs repair.
    2 Video out card on iMac is flaky.
    3 Connector or adapter is shorting out.
    4 Something I haven't thougt of in OS X system or other software is
    the cause.

    Before I take the monitor in for repair, I wondered if anyone else has
    seen this problem and might have a solution or the next steps to take
    in troubleshooting.

    Thanks
    Render Guest

  2. #2

    Default Re: external monitor turns blue

    In article <google.com>,
    com (Render) wrote:
     

    That's a standard Sony failure. The solder connections are so thin that
    they evaporate from heat or they crack from thermal stress. At least
    the og board on the back of the tube will need to be resoldered.
    It's a good idea to check the rest of the monitor too. It's a
    non-technical procedure but it requires competent soldering skills.
    Kevin Guest

  3. #3

    Default Re: external monitor turns blue

    In article <supernews.com>,
    Kevin McMurtrie <com> wrote:
     

    I'd consider resoldering something to be pretty technical, actually. :-)
    A person who is familiar with video circuitry could do it. Just be VERY
    CAREFUL of the voltages in there! Or take it to a video repair place.
    Or replace it. New CRT-based monitors are pretty cheap these days.

    --
    Today, on Paper-view: Pulp Fiction!
    Howard Guest

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