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Here's the 2300c display standoff: https://www.printables.com/model/541787-powerbook-duo-2300c-screen-standoffs

If I stumble across a 190/5300 that needs hinge standoffs, I'll definitely design a new part. My own 5300c happens to be one of the "second revision" models (where they went back and fixed a *lot* of the housing problems from the initial machines that shipped) so it hasn't yet needed it. I can...

I don't have any photos handy, but there's a good look at the card around 3:48 in my video about the machine.

I have a DayStar Genesis MP with the quad CPU card, and it doesn't want to boot. Pressing the power button gets the system to power on, but there's no chime, video, or hard drive activity. The system has a brand new PRAM battery. Swapping the CPU card for another one, like a Sonnet G3...

1. The keyboard can work either over infrared, or with an attached cable. The keyboard has two ports, an RJ11 (with matching RJ11 on the Outbound itself), and a mini-DIN. What's the pinout of the RJ11 cable? (I'd like to find/make one.) And what's the mini-DIN for? 2. You could get the Laptop...

I picked up a PowerBook 540c not long ago, and while it seems to boot normally, there's an obvious problem with the screen (see attachment). Has anyone seen this before? My gut says it could be bad caps on the screen's driver board, but I've never encountered this problem before so I can't say...

Thanks, I'll check out R2rc5. Late last night I did manage to get DR3 working -- I created just swap, root and home partitions and the installer went smoothly. Not sure if it was the fewer partitions, or putting swap first, that did it.

I'm trying to get MkLinux DR3 installed on my PowerBook 3400. It's a supported machine, and I can get as far into the install as the point where it formats the partitions. When that's done, just before it's supposed to start copying files, it throws a "mount failed: Invalid Argument" error with...

As a bit of closure, and somewhat of a tease: I got my hands on another SE/30 board that suffered from a PRAM battery explosion. The board is toast, but there are still good parts on it. I swapped four of them over to my original board...and it works now. Expect a follow-up video in a few weeks...

PM sent!

Yesterday I soaked the board in IPA for a few hours, then set it out to dry overnight. The problem persists. I'm continuing to test the ROM connections. I've gotten through the muxes and resistor packs (RP4 through RP6) to their respective RAM slot pins, all are good. Next I'll work from the...

Yeah, after starting to go through the rest of the schematics I realized that all of the chips on the board use only +5v, and the rest of the rails are just passed through to other components (expansion slot, floppy drive, etc). And correct, there's no boot chime. I tested all of the pins on...

So the floppy voltage thing was a red herring. This page says -12v should be present on pin 5 of the external floppy connector: https://allpinouts.org/pinouts/connectors/data_storage/macintosh-external-drive/ Turns out that's not true, at least for the SE/30. I found an original schematic for...

Thanks for sharing my video! I poked around the logic board a bit recently, and here's what I've found so far: --All voltages present (+/- 5v, +/- 12v) at the 14-pin connector from the analog board. --Continuity from the 14-pin connector to the edge connector for those voltage rails. --All...