I am from Holland and I own the same original ExpandaPet DD DSK CTL P2 board
from Computhink. After doing the same repairs the board is function well for the
memory part but the floppy disk part is not. I connected an old Mitsubishi floppy
drive and I can do a $F,1. The floppy is formatted and I checked this by reading
the floppy back on a Commodore 1541 drive. The existing data on the floppy
was erased!

BUT doing a $DIR,1 gives me always: FREE TRACKS 00, and saving a basic program|
gives me: NO FREE SPACE.

Please are you willing to help me from this strange behaviour.

I looked at the pins on the board and it looks like a Shugard bus, BUT I can’t give
one pin a place. That is PIN 6 on the board. It’s a output from a NAND.
Do you known what function this pin has?

Hopefully you can help me.

With kind regards,
P. Rijkes

place