On Apr 4, 4:57 pm, "Michael J. Mahon" <mjma...@aol.com> wrote: > > Not ADB, 9-pin. There are different flavors of the DE-9 mouse. All of > > There is no 9-pin ADB. That's an earlier dedicated mouse interface. Right, like I said - it's not ADB, it's the 9-pin. Still looking for a schematic for the IIc version... even just photos of the top and bottom of the PCB would be a big help.