Casio CZ/ VZ/ FZ - Pro Series

> Is there a way to reset its original 
> parameters for the factory presets to come back? 

Power Off the synth. Push the red button on the top right, "Initialize" 
and maintain it pushed. Power the synth on, and you will be asked in the 
LCD to reset it to defaults. Push "Yes", it's at the bottom of the lcd, 
at the right, with a right arrow on it. Now, release the "Initialize" 
button. Done :)

Manu