jeff@eniac.seas.upenn.edu (Jeff White) (03/20/90)
I'm having a problem with the video on my Mac Plus (upgraded from 128k) which I've heard is pretty common and hoping I can get some assistance with. For a couple of weeks the right side of the screen would tend to shrink and grow, as well as also get some occasional snow on the entire screen. Over the weekend it went completely blank, except for a vertical line right down the center of the screen, my guess now being a horizontal voltage problem. When I was ready to take it in for repair, I tested it again first, and it's back to working as before, full picture, but with the same problems. I seem to remember reading that some of the early power supplies were very susceptible to having flakey solder joints on the power supply board. Has anyone had similar problems to mine and found a do it yourself way to fix the problem? I realize that eventually I'll probably have to replace the power supply, but if I can prolong it until it completely fails (especially at $150+ to have it replaces), I'd be happy. Any help would be greatly appreciated. Jeff White University of Pennsylvania jeff@eniac.seas.upenn.edu
omh@cs.brown.edu (Owen M. Hartnett) (03/20/90)
Full instructions on how to repair this and almost any other power supply problems are found in the book: "Macintosh Repair & Upgrade Secrets" by Larry Pina. Published by Hayden books, ISBN 0-672-48452-8. Also, parts available from: SoftSolutions 907 River road, Suite 98 Eugene, OR 97404 (503) 461-1136 -Owen Owen Hartnett omh@cs.brown.edu.CSNET Brown University Computer Science omh@cs.brown.edu uunet!brunix!omh "Don't wait up for me tonight because I won't be home for a month."