Korg DW8000, Mono/Poly, MS-20...

No, I did not try to disconnect the keyboard, although I tried to play
the synth through MIDI. I do not think it is a problem with local
keyboard, because pressing/releasing keys sends MIDI messages just
fine - I checked that with MIDIOX. What I tried was disconnecting the
Aftertouch "mechanism" but it changed a thing. Anyway, I am going to
try to disconnect the local keyboard and then try to play through
MIDI, as you suggest.

Thanks


--- In DW8000@yahoogroups.com, Jez <jezosaurus@...> wrote:
>
> Have you tried disconnecting the keyboard and playing it through MIDI?
> 
> On 1/2/07, gupidziadek <dmaliszewski@...> wrote:
> >
> >   Hi everyone, I know the subject looks rather silly, but I do not
know
> > the better way to describe my problem - english is not my native
language.
> > I just resurected DW8000 I acquired for as much as 100 euros, it was
> > completely dead and the battery replacement was not the clue here.
> > Anyway, the synth came back to life but it's just a half of success -
> > the issue is when I press a key the beast start sounding but it does
> > not stop when I release the key. Pressing another key toggles another
> > voice to sound and now two voices sounds forever, etc. That is how it
> > behaves in Poly mode, in Unison all voices sound together so pressing
> > another key (and relesing it) causes the previous sound stop sounding
> > and the one just pressed sounding forever. The strange is that the
> > sound is not just the sound of selected waveforms but it sounds like
> > the VCF in big resonance - selfoscilating at a high frequency. Another
> > important thing here in my opinion is that the mixed signal amplitude
> > leaving VCA (before it reaches the delay board) is very high and
> > getting higher each time I press a key. My first suspicious was a
> > keyboard issue but it was a false - I have tried to trigger the synth
> > externally via MIDI and it behaves exactly the same way.
> > I am looking for anyone experienced who might be knowing the way the
> > analog part of the DW8000 works and can share with me the knowledge. I
> > have skills but do not have experience and knowledge how the synth
> > works. I am trying to learn by just reading and analyzing schematics,
> > but it is very difficult and the Service Manual is ..... actually
> > useless. I will appreciate any piece of advice.
> > Thank you.
> >
> > gupidziadek
> >
> >  
> >
>