Casio CZ/ VZ/ FZ - Pro Series

Cleaning can help.

Also don't forget that cartridge should be connected or disconnected  
always with instrument switched off.

Are you sure battery polarity inside the cartridge is OK?

I don't think the problem is in setting at the instrument (there's  
nothing to set for the cartridge anyway)...  If it's not just some  
dirty contact, interrupted PCB line or similar mechanical problem,  
then it looks like an electronic failure, probably in the cartridge  
circuit.

Concerning RAM cartridges, AFAIK there were three types:

Casio RA-3 - for CZ1000, CZ101, CZ3000, CZ5000
CZ101 and CZ1000 can SAVE/LOAD all memory contents (16 patches), and  
recall and write 1 patch from/to the cartridge.
CZ3000 and CZ5000 can only SAVE/LOAD all memory contents (32 patches)  
to/from the cartridge.

Casio RA-6 - for CZ1
Instrument can SAVE/LOAD all memory contents (64 patches), and recall  
and write 1 patch from/to the cartridge.

MicroFantics Inc. EZ-CZ - for CZ1, CZ101, CZ1000, CZ3000, CZ5000
Cartridge with four banks selectable by two switches.

I have RA-3 and EZ-CZ cartridges, but can only load/save all memory  
contents on my CZ3000 :-(

Daniel Forro


On Jun 21, 2016, at 7:51 PM, quad303@... [CZsynth] wrote:

>
> interesting. Perhaps a clean up of the physical connections and  
> leave the RA-3 with power off for a while to clear?
>
> This may not do very much at all.
>
> I don't know a lot about the difference in the ram cartridges but I  
> was thinking that the RA-3 was for the CZ5000 and could therefore  
> hold more patches and something wasn't configured right on my  
> CZ1000. But again that sounds a bit left field and the RA-3 should  
> would fine.