Hi,

I'm having an issue with a Casio CZ-3000 I recently purchased...a few of the keys play two notes at the same time (i.e. when I hit an A, it will also play a B flat, and this happens for each octave as well). At first, it was only two keys, but now it's four, as well as their respective octaves.

I've also noticed that if I hold down certain other keys (in the lower register,) this doesn't happen for some reason, but then the notes cancel each other out as if the synth were in solo mode (it's not.)

Has anyone else had a similar issue with Casio CZ synths? And if so, was there a solution?

Thanks for any help anyone can provide me!