Vintage Synth Repair

I have a Mirage Keyboard with the Indian Valley Manufacturering
Megabank Expander and I have an additional unit that is not currently
mounted in a keyboard.

I understand that there is software for the Mirage that is required in
order to use these units.

I'm looking for the documentation on installation and usage, details
on the external powersupply that is needed on the unit I have that is
not yet mounted (There is a wall wart supply type connector on the
cartridge that plugs into the expansion port, and the label on the
cartridge says "Be sure to insert this cart. into the exp. port and
attach the IVM power pack before booting the Mirage") and a copy of
the software so that I can use these units.  Schematics would also be
helpful in case they don't work properly.

If anyone knows of a web site that has this data, that information
would be greatly appreciated.

If anyone has any of the materials realted to this hardware, I would
be happy to pay for any copying, media, and shipping costs associated
with getting these materials.

Thanks for you time.

Larry T.
larry at unicode.com