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Started with a busted M0110A. Replaced the controller chip. (Socketed the replacement.) Hard wired a replacement cable. Cherry Blues plus Kailh style switch sockets and short wires. Now I just have a top case to remodel and a bunch of 3D printer work to do. It works though!

Anybody have (or know where I can get) wiring diagrams for a Mac Plus Extended keyboard? I have one that's just a doorstop; other keyboards work fine with the same Plus / cable, but this one does nothing. I'm specifically curious about how to test that big microcontroller. (Would I need, like...

I have a Dell 2001FP (1600x1200 max resolution, VGA input) that I've had a lot of luck using with old Macs - it's worked great with everything from a IIsi to a modern MacBook Pro. But it's pretty dim and yellowish. I guess the fluorescent backlight degrades over time? Most older monitors I've...

Got a 6360 and ported over some parts I had from a 6400 motherboard. Was curious about this 60 pin connector (see attached pic) on the AV capture card - anybody know what it does? (I’m guessing it’s for the TV tuner?) Also, I have a Netgear FA311 PCI Ethernet card, which came out of the same...

I have a 2-port SATA card that prevents my QS G4 from booting - I've read other threads where people have the same problem, apparently the QS G4 is "picky" - and have to move the card to a different slot. But I've tried it as the only card installed*, in all of the slots I have, and I get that...

Okay, so I got a Sil 3114 based, pre-flashed and VRM modded 4-port SATA card on eBay, which I installed in my QS G4. It works out of the box in OS X - I installed 10.4, it's recognized as a bootable device when I hold down 'option' at startup, and it works fine and is pretty fast. However, the...

I've got an ImageWriter II which seems to work pretty well, except the printout fades on the right 1/2 of the page. (And one other problem, but this is the main issue.) The tech manual says to check the shims and add/remove for the carrier shaft. I found the procedure from the old tech manual...

IIsi, new PRAM battery. Keeps settings when off, but clock is losing about 15 minutes a week. It's overclocked to 25MHz if that makes a difference. Is it likely cap goo or a damaged trace like here: https://68kmla.org/bb/index.php?threads/macintosh-iicx-slow-clock.46554/ Or is that relatively...

So I’m wondering why my QS G4 is running its internal SSD at the slowest possible speed? I checked with and without the CF card adapter I use as a secondary drive. In both cases the drives seem to be stuck in 16.7MB/sec mode even though I know the SSD is definitely capable of faster. (I used...

Have a 9GB scsi HDD I’m trying to use with a IIsi. I can boot from a CD image on a ZuluSCSI to format and install an OS. When I initialize the drive I get a prompt about volume size, so I create a 1GB volume. It mounts, I install an OS, and then… nothing. It won’t boot from the volume and if I...

Hi, I've got an AppleCD 300i Plus, (Matsushita CR-503-K) in my Quadra 650 which works, but only mostly. It reads cds fine, and will eject the tray when there's a CD in it ok. But if I hit the tray button when the drive is empty, the tray sticks and I have to tap the left side of the tray to get...

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...

Hi. So, I had a small batch of these made, using the coupons and stuff that pcbway offers new users, it was like $2 each for 10: https://www.bigmessowires.com/2023/09/27/atx-to-mac-10-pin-power-supply-adapter-kit/ I've assembled six of them so far, and they all work in my Quadra, but only one...

Cleaning up a bombed SE/30 and there was enough gunk on the ROM that I took it apart to clean it. (As well as ordering a new simm socket for it.) I damaged/tore one (1) solder pad on it, which is actually good for me, and I can bodge it easily enough but can’t figure out where it’s supposed to...

So I’ve got this SuperMac Thunder/24 which seems to almost work properly. It installs, boots, throws a video signal, etc. I downloaded the drivers from the Macintosh Garden and the Control Panel works with all the extra widgets and stuff. The only issue is that if the cursor goes onto the...

So I’ve cleaned and lubed a few floppy drives now, and I’m running into a weird issue. I have a stash of old floppy disks (1.4MB and 800k) but all of them show this so I think it’s the drives. (?) Basically if I format a disk it’ll work on that drive. I can copy data to and from it, etc. But...

Putting this in here be a use the bracket in question is from a 7300, and is far more brittle than others I’ve seen, but this is a more general question. As you can see in the attached photos I had a drive sled where all of the flex-tabs snapped off like they were made from the finest crystal...

I had After Dark and the famous Flying Toasters working pretty well (IIsi @ 25MHz, 640x480@8b, System 7.5.3r2), but after I did some other tinkering (mostly just installing games) it works OK for a second and then slows to a slideshow. Any ideas what might have fouled it up? (HyperCard came...

Trying to get the Ethernet card in this old IIsi working. Got a 7.5.3 install and added Open Transport 1.1.2. Link lights come on, green light occasionally blinks. Won’t pull an IP from my router and doesn’t work w/ manual configuration either (can’t ping it.) My home network is all IPv4...

So a lot of macs had that single ADB port, on the assumption that you'd daisy-chain your devices. But I have an aftermarket optical ADB mouse that uses a USB->ADB adapter (the Kensington Mouse-in-a-Box) and the plug doesn't fit in the cutout of the newer ADB keyboards. I know I could use an...