HI al,
So I have:
- Apple IIa, with Integer roms, running fine
- Apple IIb, with Applesoft roms, running fine
but when I put the Apple IIa integer roms in Apple IIb, I get the error on screen seen below on start.
Any idea of what could be wrong ?
Pics below of my Apple IIb, after I install the working Integer roms, and the error I get on start
Thanks all !!
Hi zonga,
I see you use an old motherboard (Rev 4 or before). The IC sockets are pretty fragile.
Do you have checked there is no bent pin inside the sockets and on the ROMs ?
What's going on when you put the Applesoft ROMs back into the Apple IIb ?
Did you try reseating the 6502? I imagine it got 'tweaked' a little putting in the ROM's
If there is no 6502 in the socket, it looks just like your photo.