Discussion about the Korg PolySix synthesizer

Which part number would it be on the circuit board ?

thanks



--- In PolySix@yahoogroups.com, "Sam Larch" <sdlarch@...> wrote:
>
> Is the "OPTO" you speak of the photocoupler?  I'm having a little 
trouble
> locating the replacement part.  Do you have the NTE replacement 
number - or
> where I could find one?
> 
> Also - what causes them to go bad?  Could another cirucuit replace 
the opto?
> 
> 
> On 5/6/06, darke_one666 <darke_one666@...> wrote:
> >
> > Hi all,
> >
> > I keep seeing messages posted regarding tuning etc. I can pretty 
much
> > promise you all that this is caused by the opto on the KLM366.
> > Within the last year I have repaired 5 pcb's all suffering from 
the
> > same problem, ie tuning C6 is ok but when you line up C2 to be at 
the
> > correct pitch , the octaves are not correct. I've also see units 
that
> > play an octave over 11 notes C2-B3, not enough range on the pots 
to
> > tune up just to name the common ones. From now I dont even bother
> > trying to tune a P6 without swapping the opto as you will most 
likely
> > be wasting yourtime. If you need a pdf copy of the service manual 
email
> > me at ibradshaw@... also if you need any tips let me know.
> >
> > I have really spent a lot of time last summer figuring how these 
units
> > tick and learnt just about everything I could. I've worked
> > professionally (if that's how you spell it!) repairing synths 
over the
> > last 18 years and specialise in Korg, Ensoniq, Kurzweil and Alesis
> >
> >
> >
> >
> >
> >
> > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> >
> >
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