OBERHEIM SYNTH

I tried panning the distorting voice card and cleaning the pots- it didn't help.  I do only 
hear it when I have OSC 1 engaged - with just OSC 2 I don't hear the distortion.  The weird 
thing is that I tried replacing the Curtis 3340 for OSC 1 and I get the same distortion, so I 
don't think it is the chip.  Any other thoughts?

Jonathan

--- In oberheim@yahoogroups.com, "nelsonj_sce" <nelsonj_sce@...> wrote:
>
> As for the distortion, try panning your bad voice and see if that 
> helps the problem.  Also clean the pan pot with some component 
> cleaner.   
> 
> As for the "ghost" note...I have to think more about that. 
> 
> --- In oberheim@yahoogroups.com, "jringmrath" <jringmrath@> wrote:
> >
> > I have an 8-voice OBXa and have a couple of nagging issues I 
> haven't been able to resolve.  
> > 
> > First, I seem to get some slight distortion from voice board #8.  
> If I move the board to 
> > another location, it sounds fine.  If I move a known good voice 
> board to the #8 position I 
> > get the same distortion.  It is most obvious on the organ-type 
> sounds.  I have been using 
> > it as a 7-voice until I can track down the problem.
> > 
> > Second, if I play the chord "G,C and Eb" in the middle octave of 
> the keyboard, it also 
> > sounds the "E" below the G.  Needless to say, this can be 
> annoying!  Must be something 
> > having to do with the keyboard scanning, but I don't know what 
> exactly.  The double mode 
> > also doesn't seem to work 100%.  Maybe a related issue?
> > 
> > Any thoughts on what might be causing these and how to fix them?  I 
> have the schematics, 
> > but I don't really know what I'm looking at since I'm not a tech.
> > 
> > Thanks for any help or advice!
> > 
> > Jonathan
> >
>