Discussion about the Korg PolySix synthesizer

http://audio.synth.vintage.free.fr/modules.php?name=Forums&file=viewtopic&t=
113#509

 

De : PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com] De la part de
7yash
Envoyé : samedi 10 novembre 2012 23:42
À : PolySix@yahoogroups.com
Objet : [PolySix] Re: Polysix restoration: LEDs, Sub-Osc LFO issues.

 

  

Malte, thanks for the pointer to the 4051. It does look like they play a
large part: if I remove the two main 4051s and plug them part way, they seem
to have a drastic effect on the sound, especially regarding Cutoff/Res or
Cutoff Res Env.

Yash

--- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Malte
Rogacki <gacki@...> wrote:
>
> In my opinion this particular error is probably unrelated to the previous
> problems.
> 
> If you look at the schematic you'll notice that those parameters are not
> controlled via the D and P lines on CN06; instead the are multiplexed and
> passed via CN11.
> Could indeed be a 4051 or one of its lines acting up.
>





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