Question about Apple Colorsync 850 Monitor

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Problem the symptoms are : horizontal line in the middle of the screen and later the picture fades away

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Hello.
This indicates that your vertical sweep has failed and the auto protection circuit is shutting down the video so you do not permanently burn that line you see into the phosphor coating of the CRT.
At any rate, the vertical sweep circuits need repair before the unit will work again.
Good luck.

Posted on Nov 01, 2007

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