Casio CZ/ VZ/ FZ - Pro Series

Hello all, I need a little help. I have a CZ3000 that I haven't used in a while. 
I'm trying to save off the internal Timbre's to a cartridge. I have 5 RA-3 
cartridges. I press  the cartridge key and it asks me cartridge save or load? I 
then respond save and is asks me bank A,B (Y/N)? So I respond Yes and it looks  
like it's writing to the cartridge after a couple of seconds the display says 
Bank A,B OK. I check it by pushing the memory Bank A key then the 1, but it just 
says memory A1, or A2, or A3 etc.... like nothing was written to it. I have 
tried several cartridges and no luck. Can anyone tell me what I'm doing wrong?

Thanks.


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