Why I am getting a blue tint on my monitor?

Question

BLUE TINT ON MONITOR. Right from the start, the monitor screen of my Macintosh Performa 630 had a habit of occasionally turning to a nasty shade of dark blue (or sometimes an equally unpleasant red tinge). In use, the screen sometimes flickered or went dim too. I took it back to my local Apple Centre, who tested it for a fortnight (they said!) then swore there was nothing wrong with it.

Answer

This question was answered on March 26, 2003. Much of the information contained herein may have changed since posting.

Solution: I showed the service manager at my local Apple Centre how I could produce the blue tint myself by fiddling with the plug at the back of the monitor that connected it to the computer He said this was because I was shorting it, but insisted there was nothing wrong with it! But this gave me the clue: since then I cured the problem by jiggling the plug around whenever necessary But there is still a bad connection!

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Author

Posted by ricardo of Katharine Gibbs School - New York on March 26, 2003