Casio CZ/ VZ/ FZ - Pro Series

>If we could hack the CZ-101 / CZ-1000 / etc. to have this sort of
>dedicated memory, it would finally end our dependency on six expensive
>D cells (which I've found rapidly run out, even when I ONLY use the AC
>adapter!).
>
>And in addition, that 3V cell in the Korg Poly-800 lasts for a good 7
>years or so. Let's brainstorm.
>
>Any schematics anywhere?

The problem you're facing probably isn't that the batteries get drained- 
alkaline batteries (or whatever you're using) don't have a very good shelf 
life.  Lithium batteries (used for memory backup) last much longer.

As for schematics, I haven't seen any around.  There doesn't seem to be much 
of a scene for modding/repairing CZ synths.