Casio CZ/ VZ/ FZ - Pro Series

Hello,
I just bought a beautiful Casio CZ-1 at a pawn shop for $85, but it has 
some issues.  It won't make sound unless I slide the volume and chorus 
around a bit.  Then the sound fades after a few seconds, and I have to 
switch it off and on again to get sound.    

All buttons power up and seem to work fine. Display work fine as well.  
I'm almost sure the problem is in the chorus circuit as it seems to 
affect the volume.  It could bad capacitor, but it could also be a 
short.  

Does anyone have any suggestions of where to start?  

Thanks for your help,

Roland

In responce to my own message:

I dissasembled the CZ-1 and found 3 leaking caps on the power board.  
I also removed the right panel board (what a job) and sprayed both 
sliders with contact cleaner. Tomorrow, I'll run down to Radio Shack 
and see if the have the caps.  If not, I'll order them from 
PartsExpress.  

--- In CZsynth@yahoogroups.com, "rolandmks7" <rolandmks7@...> wrote:
>
> Hello,
> I just bought a beautiful Casio CZ-1 at a pawn shop for $85, but it 
has 
> some issues.  It won't make sound unless I slide the volume and 
chorus 
> around a bit.  Then the sound fades after a few seconds, and I have 
to 
> switch it off and on again to get sound.    
> 
> All buttons power up and seem to work fine. Display work fine as 
well.  

> I'm almost sure the problem is in the chorus circuit as it seems to 
> affect the volume.  It could bad capacitor, but it could also be a 
> short.  
> 
> Does anyone have any suggestions of where to start?  
> 
> Thanks for your help,
> 
> Roland
>

hello everyone!
i´m new to this group and this is my first posting.

i have the same problem as roland described it but i don´t have to
switch off my cz-1. after some minutes the synth works fine until
it has sometimes random breakdowns after an hour or so.
could you describe more precisely, where i have to look for the
defective capacitors?

poshbot


--- In CZsynth@yahoogroups.com, "rolandmks7" <rolandmks7@...> wrote:

>
> In responce to my own message:
> 
> I dissasembled the CZ-1 and found 3 leaking caps on the power board.  
> I also removed the right panel board (what a job) and sprayed both 
> sliders with contact cleaner. Tomorrow, I'll run down to Radio Shack 
> and see if the have the caps.  If not, I'll order them from 
> PartsExpress.  
> 
> --- In CZsynth@yahoogroups.com, "rolandmks7" <rolandmks7@> wrote:
> >
> > Hello,
> > I just bought a beautiful Casio CZ-1 at a pawn shop for $85, but it 
> has 
> > some issues.  It won't make sound unless I slide the volume and 
> chorus 
> > around a bit.  Then the sound fades after a few seconds, and I have 
> to 
> > switch it off and on again to get sound.    
> > 
> > All buttons power up and seem to work fine. Display work fine as 
> well.  
> > I'm almost sure the problem is in the chorus circuit as it seems to 
> > affect the volume.  It could bad capacitor, but it could also be a 
> > short.  
> > 
> > Does anyone have any suggestions of where to start?  
> > 
> > Thanks for your help,
> > 
> > Roland
> >
>