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  1. kjoh

    Is this a Sync on Green Issue? MacIIsi with an AD-A205 adapter

    Is there a combination of DIP switch settings that will work? Tearing my hair out here. I've tried with a couple of different LCDs. Sometimes I get no image at all.
  2. kjoh

    What should the resistance measurement be for the power switch to GND on an ADB keyboard?

    When button pressed. Wasn't expecting 2Mohms. Anyway, diagnosing a IIsi power issue, just verifying one thing at a time.
  3. kjoh

    Any suggestions for a toolchain for a MEX68K Education Computer Board?

    Hello folks. I have this very excellent MEX68KECB trainer, which I have verified to work by talking to it over RS232 with an old PC. At one time I imagined trying to do cross-development using Linux and gcc, but now that I have a couple of Classic Macs around here, I figured it would be way...
  4. kjoh

    Mac SE/30: Looking for suggestions for next steps

    History, symptoms: Came to me with leaky caps on the logic board. Replaced surface caps with tantalums, and repaired known bad traces. The computer bongs on power up along with hard disk and floppy activity, but usually no video. Occasionally I will get a screen like the one shown...
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