Patches and discussion for Ensoniq VFX family

I just received a gift of an Ensoniq VFX-SD and know very little about it,
besides being able to turn it on.  It came with no manuals or disks to load
the sequencer into the system.  Can anyone provide me with copies or
downloads for either the manual or the software.  Please excuse my ignorance
if I misspoke on the terminology (I have no manual).  I'd appreciate any
help you can provide.

Thanks in advance,
Ken