The video board is working great and I just fixed the second memory board, so it seems to recognize the full 1MB now. Also, a transistor is on the way to get the sound working.
That's awesome! Congrats! You've just about got yourself a working Lisa! Well done!
It seems that I may have been wrong about the ROM version because the computer boots just fine from a MacWorks 1.0 boot disk, which makes me think that it has to be revision D or later, even though it has a C written on it.
When you first power on the Lisa, during the self test, but before the boot menu that shows floppy, you'll see the version in the upper right corner, i.e. D/A8 for the "D" boot ROM version and A8 for the I/O ROM.
Although the MacWorks disk worked just fine, it gives an error 49 whenever I try to boot from a LisaTest 3.0 disk, so there may still be some problems with it.
Yeah, I'd just assume a bad floppy at this point, download another from elsewhere and - there are many versions of LisaTest, so not sure which one is valid for what system exactly, but sounds like that one is throwing an A or F-Line exception during boot, so it's likely corrupt.
Unfortunately, the floppy drive in the Quadra 700 that I was using to make disks for the Lisa last night stopped working in the middle of making a disk, so I have not been able to test any other disks on it yet. I will set up another Mac this afternoon and make some more disks to see if it will boot from any of them.
I'd say try to fix the serial ports next, so you can fire up BLU.
Another possibility is to get a FloppyEmu (
https://www.bigmessowires.com/floppy-emu/ ) and get the A/B switch board for it so you can switch between the physical floppy drive and the emu, these are awesome. You can use a tiny screen to select a disk image from an SDHC card, and not have to deal with actual floppies at all. I have one, as well as an X/Profile, both are highly recommended.
BTW, the X/Profile does work with certain CF to SD card adapters so don't worry about CF cards getting scarce.