Since it seems to be working again, I'm just going to leave it alone for now. If it breaks again (which it probably will), I'll probably look into buying one of those cheap CPU boards.
When I got this Lisa, it didn't have a keyboard and Lisa keyboards seem to be incredibly expensive, so I decided to build a keyboard emulator. I'm not sure if you have heard of it, but it's called LisaKeys (
https://github.com/RebeccaRGB/lisakeys) and it uses an Arduino to emulate the keyboard. Is seems to work great when typing manually, but I tried using the included Python program that types disk images into memory in the Lisa's service mode, it does not recognize the Arduino for some reason. It says that it did not receive a response from the board, even though it's connected and powered on. Has anyone else here had this issue and do you know any fixes for it?