• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

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    Macintosh IIsi Restoration

    Hi Garrett, sorry for overlapping your post! Maybe there was different iterations of the power supply. If the capacitor is part of an RC network, then the value might be important. I recapped mine but I didn't even look at the values of the old ones i removed lol!
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    Macintosh IIsi Restoration

    I had corrosion there too, which i fixed, so i'm scratching my head ...! Which we had more schematics available to help us! I Measured 4V at C5, which seems a bit odd, but again, there was no op-amps on the schematics so hard to troubleshoot... Thanks for getting back to me! If you ever find the...
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    Macintosh IIsi Restoration

    @PotatoFi : Did you end up fixing the IISI? I'm stuck at the same place as you are! Blank screen, no chime!
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