Crumar Musical Instruments User Group.

Hi, I have recently inherited a Crucianelli Electronic 120 bass piano accordion from a late uncle. It came with a Crumar Nerve Centre 50 and a separate unit (black box) that apparels too contain all the electronic devices. The whole lot is called a Magicvox 2000 (The Magic Electronic Accordion)
The only problem is that there are no instructions or owners manual. So I was wondering if there is anyone out there that could help me on setting this equipment up. I am also looking for any schematics  

Thanks  

Reg