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Well, after a recap, I no longer get a black screen - now I get vertical lines. (I thought that meant a ROM problem?) And then the screens gets weirder from there. I got a BlueSCSI and that works like a charm so I double-don't-know-what's-going-on. If it was just a matter of wanting it to work...

Well, I fixed it. Turns out I had a solder bridge between two pins on the analog board. (Pins 9 and 10, 12v+ and GND, of the connector that goes to the logic board.) Yay! I also have terrible eyesight. I need some kind of magnifying rig. :-(

I’d never heard of that before. Thank you for the advice; it looks like I have some things to try!

-12.14 on the -12v 5.01 on the 5v 11.81 on the 12v All measures off the floppy connector. The 12v might be a smidge low but overall those are pretty close to where they ought to be, right?

Ack, no, good call thanks.

Hey, Based on some advice in another thread I went ahead and did an analog and logic board recap on my Plus. It booted ok twice, but the third time the screen went blank. No sound from the speaker either. The yoke gives off that amber glow in the dark so I know the crt is getting power. The...

So looking at this page: https://console5.com/store/computer-cap-kits/mac-68k-cap-kits/mac-plus-cap-kits.html I'm guessing I need the non-international Analog PCB kit at least. (I'm in the US and the computer is from here - I got it when I was ten.) Should I get the Main PCB cap kit as well?

The HD SC Toolkit on the install disk for System 7.1. Although I ran the tool and the installer from my G4 running MacOS 9.2.2.

It won't boot with the Zulu attached at all. Just the same split second of question mark, then black screen. Pressing the reset button goes straight to black screen as well. The status screen on the FloppyEMU never shows disk access either. (Normally it will show what track/position is being...

So I have a Mac Plus which boots fine from a Floppy EMU. It makes some funny noises and I need to recap some stuff, but it boots and has 4MB of RAM. I wanted to go the SCSI route with a ZuluSCSI though, so I got the Mini RP2040 (external SCSI device, DB25 port). I was able to hook it up to my...

There are some on eBay for like $150 apiece. Otherwise it's buying old analog boards and hoping you have a good transformer to pull. IIRC the transformer itself is common between the 128/512/Plus/SE/SE30 even if the analog board is different.

The Keyspan assistant can provide some port monitor capabilities, so you can see if the data is being sent. A draft mode page from simple text will be short and obvious. Might be the cable you’re using. Early Apple printers required a “crossover” or null-modem style serial cable, but LocalTalk...

Okay, so success, sort of. I tried several different driver revisions, none worked. But on a hunch, I plugged in into my PC, and the device manager gave me some weird errors that I usually associate with defective hardware. So I bought another one of the same adapter and it was recognized...

Got a keyspan serial port adapter and seem to be encountering some driver issues. System Profiler sees it but the Keyspan software doesn’t. Any ideas? (I assume I’ve got a driver version mismatch or something, but I’m not sure where to start.) The model number of the adapter (USA-28X B)...

Additional Info: I was able to install 10.2 from a CD, and that works fine. It recognizes the 10.4 DVD as a bootable disk and I can select it in the Startup Disk control panel, but the computer still refuses to boot from it. The DVD drive had trouble mounting the 10.2 disk 2, and hung the...

So I snagged my dad's old G4 from a storage unit. It's an M8493 Quicksilver G4 that was originally 733Mhz/128/40GB and had been upgraded to 1GB of RAM and a 1.4GHz G4 from Sonnet. Had been sitting in cobwebs since 2010 or so. Nobody remembered the old password, so I replaced the old HDD with an...

@MinerAI - that's pretty close, yeah. Thanks! @Bunsen - Hmm, yeah, I have a 3D printer and a Shapeoko milling machine both. If I can find Platinum-ish sheet plastic... maybe at an art supply store or something. Thanks for the idea.  :)

So, I've been buying some old Mac-II era carcasses (gutted cases) on eBay and whatnot, intending to mod them into semi-modern cases. However, backplates generally need modification, and it's hard to make that work well. I would like to try just cutting out most of the rear and 3D printing a new...