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Forgot to post this earlier and already have a couple of updates! First, I have a keyboard on the way, so yay! Second, I've had a chance to clean this thing up quite a bit. the I/O board pins are fine and a fiberglass brush did indeed take care of them, much to my surprise. There are some...

Going to try to keep this a cross-post with 68KMLA, but I've managed to acquire a Lisa 2 and will detail my repair endeavors here... I was cruising Facebook marketplace a couple weekends ago and came across something I never thought I'd see an ad for on there: a Lisa 2. The asking price was...

Good to know it can "boot" to some some extent for testing. That alone will provide a world of info moving forward - thanks! As far as it being spread across other schematics, I think you're right. I may sit down and tone out the motherboard before I do anything further. I've got both EMI...

Thanks! I picked up a replacement card edge connecter from your eBay link above and picked up some ICs from Mouser to replace ones that at least look toasted, so I should be good there. I had to order the EMI filters from DigiKey, as Mouser is now totally out of them, so no big deal there...

@rdmark Would you happen to have a BOM or list of vendors you got ICs from? Figured I'd ask here first rather than just duplicate work that may already have been done.

@rdmark I just acquired a Lisa 2 in a near identical state. The COP421 looks like it survived the battery leak unscathed, so I'm hopeful for this thing's future. This thread will be an invaluable repair guide to reference as I get this thing shored up - thank you so very much for documenting...

Depends on a handful of factors, but, one of the bigger reasons folks will encounter bad 3.5" floppies is that as they were waning in popularity they began to be manufactured at lower and lower qualities. I have a set of floppies for MacDraw that were kept in a craptacular environment for years...

Excellent news! I'm so glad it was just the CPU needing to be reseated. If you'd like, DM me an address to ship to and I'll send some spare floppies your way.

It's entirely possible the the 486 is just toast. That card is basically a run-of-the-mill PC; it should POST and give you the same basic info on screen as any other contemporary machine. That it's not even getting there is pointing more and more toward a CPU issue, just as it would in a PC...

Attached is a zip file with the two setup disks (img format) I used to setup my 6100, along with another zip file containing the SB16 drivers (I've never had a disk image for that, just the files since it's all DOS-based). Somewhere I had a fourth disk with, I think, some additional drivers for...

No video with a "PC is booting" message that never progresses means the PC isn't POSTing. Under normal circumstances, you should be able to immediately switch over to the PC and see the typical RAM test you would expect from contemporary BIOSes. Make sure your RAM is seated correctly and that...

Congratulations! Not only do you have a DOS card, you also have the proprietary connector cable for it (which is arguably worth more than the card itself at this point)! To answer your last question first - that smaller PCB screwed down to the larger one is a SoundBlaster card, which means you...

Good eyes! That thing does look like it got torqued a bit - that trace leading into it looks like it just popped apart due to stress. I've seen cold solder joints, but not a snapped trace before. Glad you found the issue!

How on earth does that even happen, lol?

That's incredible! I stand by my earlier post - if the option to get this stateside becomes available, I'll definitely buy some.

Hey! I am indeed that guy! This thing is an absolute behemoth, lol. I got it hooked up to my Q950 and got a raster after some ambling around. I'd been using an adapter I designed for connecting Macs to the Apple Portrait Display only to find out that the sense codes are different. I dug out my...

I've come into possession of an Apple TPD that works (but needs some attention), but I can't get a signal out of any of the Macs I've hooked up to it. Does this thing require a TPD NuBus card to drive regardless of the Mac? My Apple portrait display hooks right up to a IIsi with no issues, for...

Well, I must apologize - I appear to have a box of dead Classic IIs, not Classic Is. :(

I have a few dead Classic boards sitting next to me in a box, actually. What are the chip numbers printed on your ROMs?

Huh... never seen those drawings before. Guess I know what I'm doing tonight. Right now I've got working designs on Centris faceplates (blank only; tray-loading CDROM is still a far-off WIP), the rounded rear vent cover for a Q950, and reset/interrupt buttons for a Q800. I've also got a handful...