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    Mac SE30 Expansion Bracket Screws

    Reporting back with my fix for anyone else who has this issue in the future. As mentioned above, the size for these three accessory bracket mounting screws is something between an M3 and M2, which is problematic as it doesn't match any other screws in the chassis and it's not a size you're...
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    Framework for developing a 68k application w/ serial port communication

    No worries, thanks for the info either way!
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    Framework for developing a 68k application w/ serial port communication

    Haha. Yes my project will certainly fall into the "because why not" category. I'll PM you with a couple of questions. Thanks.
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    Framework for developing a 68k application w/ serial port communication

    Yeah MPW does not look like it would be enjoyable to use. I landed on CodeWarrior 5 Pro as the latest I could install on a BasiliskII Quadra 68040 running 7.5.5. Thanks for the documentation reference, that's helpful.
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    Framework for developing a 68k application w/ serial port communication

    Update: It looks like someone has developed a more modern workflow using the CodeLite IDE and Retro68, which seems like a solid option I will defintely investigate. And interestingly enough, there is some code in the following article that reveals some of the syntax used with the Mac's serial...
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    Framework for developing a 68k application w/ serial port communication

    I'm contemplating a small project that would allow me to send/receive serial communication between my SE/30 and an external microcontroller unit (via the serial/modem port). I've written a dozen or so embedded C++ apps in the past that include custom MCU to MCU serial communication protocols...
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    Best way to test serial ports on an SE/30

    Excellent info, thanks Craig. I will give Snooper a shot at testing the serial ports.
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    Best way to test serial ports on an SE/30

    Cool, thank you. I'm intimately familiar with AST and ASD, as I managed an authorized Apple repair shop starting around 2005. However I'm completely in the dark on whatever software existed for service techs on the 68k platforms.
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    Best way to test serial ports on an SE/30

    Yeah, that's exactly what I was imagining. Would have been silly for them not to have a procedure for that considering how easy it likely was to implement. Is that Apple service test software for the SE/30 hardware something that is easy to find? I don't see anything like that on...
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    Best way to test serial ports on an SE/30

    Yeah, don’t have another working Mac or printer here at the moment to test with, which is why I was hoping there might be a clever way to test one port with the other. Perhaps with a custom made serial cable and a diagnostic utility of some sort.
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    Best way to test serial ports on an SE/30

    After several rounds of troubleshooting I have my external floppy and SCSI ports fully functional again. Now it’s time to focus on the serial ports. What are the preferred ways of thoroughly testing these on an SE/30? Is it possible to cable them together and test them in a loopback...
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    Mac SE/30 ripple artifact on right side of screen

    Success! I recapped the power supply, reflowed the yoke connector, and double checked all my grounds. Video ripple is now 100% gone. Thanks all.
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    Mac SE/30 ripple artifact on right side of screen

    After recapping the logic board on my SE/30 my video output is working again, but I’m noticing an intermittent ripple effect on the right side of the screen (video link below). It seems more prevelant during boot up (especially a cold boot), but I have noticed it occasionally later on as well...
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    Backwards progress with SE/30

    I got mine from Amscope with the articulating arm mount for around $600, but they have cheaper options. They had one unit on sale with a simple table top stand for under $400. It’s a decent amount of money, but now that I’ve experienced the difference I wish I’d gotten one years ago.
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    Backwards progress with SE/30

    Thanks! Glad to get it back up and running. Yeah it’s truly an incredible difference from the 4x magnifying lens I was using. Amazing how much better your soldering looks when you can actually see what you’re doing!
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    Mac SE30 Expansion Bracket Screws

    I pulled one out of another chassis (pictured right), definitely not the same thread as a standard computer case screw (left). It's a machine screw that is smaller than M3, and larger than M2. It's smaller than any thread gauges or spare nuts I have laying around. M2.5 maybe? Unless it's...
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    Mac SE30 Expansion Bracket Screws

    Does anyone happen to know the official screw size for the three sheet metal screws that attach the rear expansion bracket to the frame? The unit I’m working on came with the bracket unattached and no screws. I’ve tried several sizes I have laying around, but nothing I have fits perfectly. Thanks!
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    Backwards progress with SE/30

    Back with an update. Was waiting to take delivery of a new stereo microscope before resuming work on this one. Happy to say I'm booting nicely once again, and have working audio for the first time since acquiring this machine! Huzzah! Once I got my new scope installed, I spent a lot of time...
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    Backwards progress with SE/30

    Regarding the above sound chips, how common is it for these to go bad due to corrosion or age? Can they still be sourced?
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    Backwards progress with SE/30

    Thanks for weighing in. I'm currently focusing on a really thorough cleaning of the board, and replacing at least 2-3 of the most corroded chips adjacent to C2/C7. If no forward progress still, I'll likely remove and resolder some/all of the new caps.
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