Casio CZ/ VZ/ FZ - Pro Series

Hey Dan.  It behaves that way with all sounds. I got it in to a technician, who examined it and said that the sustain input jack was shorted.  Also, someone did a custom mod to the sustain input circuit with an op amp chip and a capacitor.  It was crudely taped onto the board, so clearly not a professional job.  Any idea what someone was trying to accomplish?  Is this a documented mod?


The seller has told me that he bought it used from a music shop and had no idea it was modified.  He also said it never worked without a sustain pedal hooked up to it.


In the meantime, the tech was afraid to disconnect the mod out of fear of disabling the keyboard.  He replaced the jack and tested it.  He said it is functioning now...haven't picked it up to verify.  My guess is that the sustain function does something non-standard.


Thanks for any insights.


Jay




--- In CZsynth@yahoogroups.com, Daniel Forró <dan.for@...> wrote:
>
> Few questions:
>
> Does it behave like this with all sounds?
>
> Have you tried to put Sustain pedal into Sustain jack and THEN switch
> on the instrument?
>
> Have you tried system initialization?
>
> Daniel Forro
>
> On 15 Sep, 2013, at 2:58 AM, jay.mitchell@... wrote:
>
> > I just bought a CZ-5000 on eBay that stated "everything works!" but
> > when it arrived, the keys act as if sustain pedal is jammed on, but
> > no pedal is hooked up.  Each key remains sustained as others are
> > hit....obviously not working.
> >
> > Where are there repair shops that can do the repair on this
> > instrument?
> >
> > Thanks
> > Jay

>