Crumar Musical Instruments User Group.

Hi-
  I just purchased one of these used- just the bass pedals-a cut 32 
pin cable looks like it went to SOMETHING -maybe a drum machine?? Who 
knows! Anyway the unit has a few problems, and in a night of scouring 
the net, I couldn't find A THING on this unit. Any help appreciated- 
manual, schematic, knowledge of when it came oout, ANYTHING.
Thanks-
Dan Axelrod