Casio CZ/ VZ/ FZ - Pro Series

Hi!

>I have not seen any schemas of those but by looking those pictures of
>opened carts they seem to contain 1 memory chip (sram?) with battery
>backup , one TTL-chip (address decoder?) and some passives
>(condensators+resistors). And some dip-switches for banking logic. 

The exact schematic is normally quite simple, as they use standard static CMOS
rams. 

>Nothing special on those,should be ralitively easy to design from
>scratch. i think.. Allthough it may well be more difficult, as I have
>no idea what kind communication there is between Cartridge and Synth. 

Easy standard memory interface.

>So, anyone synth+cart owner having time/equpment to snoop around using
>logic analyzer and acope?

I have a logic ananlyser and a scope but no cartridge.
If anyone could sell me a RA-3 or RA-6 cartridge I would do the job.

I already made this with the Kawai RC-2 cartridge for the K3m synthesizer.
So if anyone needs this schemos to get an idea how this memory cartridges look
let me know and I could send my scanned schematics.

SO PLEASE: If anyone has a RA-3 or RA-6 cartridge that fits for the CZ101 and
wants to sell it so that I can get into the cartridge to extract the schematics
- EMAIL ME!

Ciao
Peter

http://www.ullrich.at.tt