Discussion about the Korg PolySix synthesizer

First thing I did.
Problem is not the SSM2044

:-s
On 10/07/2013 14:53, alesisfusion8hd wrote:
>
> Have you swap SSM2044 with another voice to make sure the issue 
> follows the filter? Never serviced a Polysix though, but I had a 
> similar behavior on my Trident MkII. The SSM2044 was faulty.
>
> HTH
> François
>
> --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com>, 
> "blzproductions" <bob@...> wrote:
> >
> > Hi
> >
> > Servicing a Polysix for a client, and have come up against a weird 
> issue, which I can't fathom. Hoping someone out there has had a 
> similar issue, and may be able to help...
> >
> > One voice has a faulty filter section in that the resonance can be 
> adjusted as per the line up procedure, but then if you lower the cut 
> off, the resonance decreases.
> >
> > I have ruled out the problem being the SSM2044, all signals coming 
> into the chip (ie. cut off/resonance control etc.) look correct, and 
> are comparable, and I'm pretty sure it's not the filter caps as 
> they're not electrolytics or Tantalums.
> > Also the connections between the caps and the filter chip are all OK.
> >
> > If anyone has any ideas, please get it touch. It's beginning to 
> drive me mad.
> >
> >
> > Bob
> >
>
> 



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