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SE/30 Trace Checklist?

Posted by: dv- on 2024-11-07 18:58:20 Basically I'm trying to create a spreadsheet that catalogs which things should be reachable from what, so I can check continuity from each pin of a few core components (CPU/RAM/ROM and a few others) to 3-4 other points, and have a pretty good idea whether traces are broken or not. And then I can print it out and mark everything off as I go down the list. Nice and organized. I've spent a few hours looking at the schematics and writing stuff down, and made a reasonably amount of progress, but it's definitely a lot of work. So I was wondering/hoping if somebody else has already done something similar and would be willing to share?

Posted by: finkmac on 2024-11-07 19:26:15 i think that's already in the schematics? hang on... edit: yeah it is. i knew it was, i printed them out and used them before Spoiler content hidden. macse30mlb/hardware/pcb/mlb/output/Macintosh SE:30 Schematic Redraw of 050-0253-01 JUL-26-2022.pdf at master · mishimasensei/macse30mlb Macintosh SE/30 Main Logic Board Schematic Drawings - mishimasensei/macse30mlb github.com last two pages

Posted by: dv- on 2024-11-07 22:19:02 Shoot, thanks! 🙏 I was going off the old Apple schematics scans. They didn’t have that. 🤓

Posted by: noe on 2024-11-08 02:50:07 Don't the last 2 pages contain just the connections involving the address and data lines and not the rest? Coincidentally, I am checking SE/30 traces (my first time) and I am going through the schematics checking the connections between components that I think might be related to the problem I am experiencing with some new RAM modules I got (simasimac in some configurations, not recognizing RAM size in others). A spreadsheet with all the connections listed where you can filter and mark them as you check would certainly be very useful.

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