Hi everyone, i have an old Apple //C of my father and I'm trying to restore it.It turns on but doesn't read floppy disks, I get this error:
I also cleaned the head of the internal floppy drive.
What does zero mean on the screen?And i cannot verify the ROM version:
Please help me figuring out the problem
I can't see your attachment screenshots very well, but generally if you have errant characters on the screen like that, you have bad RAM chip(s).
Look up the keys you need to hold to run the self-test (if it's in your ROM version) and it might tell you more.