Vintage Synth Repair

--- In vintagesynthrepair@y..., "mishon53511" <mishon66@a...> wrote:
> I am working on a 3.5 floppy drive replacement for all these 3.0 
> quick disc machines like the older Akai, Roland and Korg units. 
> Anyone know where I could get a copy of the Roland S10 sampler 
> schematic?
> Rich

Its been a long time since I've seen one of the 3" discs, but I seen 
to recall that they use a single track that spirals in toward the 
center, like an old vinyl record.  The 3.5" floppy drives use 
concentric circular tracks, which are separate from each other, and 
each track is individually recorded.  This would make it impossible 
to simply plug the drive into the unit.  You could use a small 
computer between the unit and a floppy, having the computer send and 
receive data to the synth in the 3" disc format, using its own memory 
to temporily store the data, and then reading/writing to the 3.5" 
floppy.