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    Vertical band after flyback replacement

    Hi all, I've been having some fun ( and frustration!) getting my old Plus working. You can see the full saga here : https://forums.macrumors.com/threads/mac-plus-power-supply-modifications.2327180/ I needed to replace the flyback as the screen was garbled and some severe burning smells were...
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    Mac Plus not starting

    Looking closer, it looks like 2 more caps were added, more like the International analog board setup.
  3. T

    Mac Plus not starting

    I got my hands on a copy of "Macintosh repair and upgrade secrets" now. According to that, it seems like the power is automatically cutting out and restarting through the over voltage protection circuit. I'm going to try get all the recommended replacement parts for that. But when I took off...
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    Mac Plus not starting

    Trying to boot up my old Mac Plus after 25 years. Anyone know why it sounds like a pool cleaner :) No display on screen either, not even the sad Mac :(
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