Discussion about the Korg PolySix synthesizer

I found that the trim pot most responsible for scaling was VR3 on the KLM-366B board, although it's a balancing act between VR1/VR2/VR3/VR15. If you can't get an octave to sound properly when playing an octave, and VR3 doesn't have enough range to correct it, then you have another problem. When I had a bad photocoupler (PC1, a P1501), octaves were always stretched. If I played up an octave, it would sound a semitone or two higher than it should and VR3 couldn't be adjusted far enough to correct this.

Don B.

--- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
>
> Hi,
> 
> This topic has been much talked about in this forum in the past. You find
> that the basic technique for getting the P6 tuned is outline in the
> calibration section of the service manual. However, you might want to make
> sure the opto-coupler issue has been addressed. Search the forum for recent
> posts on the ŒSilonex NSL-32¹.
> 
> Cheers,
> Andy
> 
> 
> On 23/04/2010 20:28, "Nicolo Brattoli"
> <lamailperaccountdifacebook@...> wrote:
> 
> >  
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> > I just want to know if there's an easy way to tune in the right scale a
> > polysix
> > 
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> >  
> >    
> > 
> > 
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> [Non-text portions of this message have been removed]
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