Crumar Musical Instruments User Group.

Hi,

It sounds like you may have a blown capacitor in the keyboard itself.
Chances are the capacitor for the "stuck" note is bad and needs to be
replaced. Your best bet is to locate it and replace it and see if that
fixes the problem. If it does, you should go ahead and change all the
capacitors for the keyboard, because they will eventually blow. You
also mentioned changing the caps in the power supply. If the power
supply caps were bad, then you may have had excessive voltages going
out to the DS2's circuits. This could certainly cause other capacitors
to fail. Just one more reason why I suspect you have a bad cap in the
keyboard. 

I don't know what could be causing your popping noises.

Chris



--- In crumar@yahoogroups.com, "Joshua" <peachhead25@y...> wrote:
> --- In crumar@yahoogroups.com, "Joshua" <peachhead25@y...> wrote:
> > Hi all 
> > 
> >     I am having a few problems with a recently purchased ds-2.I cannot
> > get the poly to work right,It stays in mono mode and always has the
> > lowest key sounding.The other notes work ,but as soon as notes are
> > released it goes back to the lowest note!!?? Also the release of the
> > adsr circuit does the same thing it just sounds the lowest note.the
> > high pass and low pass circuit does nothing in poly mode either.Also
> > there is significant popping in the vcf and vca circuits heard at the
> > initial attack of all notes.I have changed all but one of the power
> > supply caps and a few opamps and the only result is less noise and
> > crackles.I am at a loss as to what to check for, any ideas?
> >                     thanks Joshua 
> > Email me at joshuaroques@c...
> still no luck with repairing this beast.I have changed the power
> supply caps and that quietend things up a bit.