Thanks very much for the advice -
since that only involves replaceing two components on the boards,
even my wretched soldering skills oughta be able to handle it -
and it won't cost more than a few pounds...
Will definately give it a try!
DAVID
--- In PolySix@yahoogroups.com, "gil_we" <gil_we@...> wrote:
>
> Check the Files section as for how to replace the optocoupler.
>
> Do not touch ANY of the trimpots, as once you replace the bad part it
> should stay in its normal tunning.
>
>
> --- In PolySix@yahoogroups.com, "David Davis" <feline1@> wrote:
> >
> > After many years faithful service, my polysix seems to have
> developed
> > a tuning problem :-(
> >
> > Usually when I first switch it on, and initially hit the keys, the
> > VCOs swirl around in pitch for about a second? (I presume that's
> some
> > kind of autotune routine or sthg.)
> >
> > However, recently, when I turn it on, this doesn't happen, and the
> > oscillators stay at some kind of wierd tuning (all the notes seem
> > stretched out, the octaves are about a third or more off pitch!)
> >
> > One time, I left it for about 20 minutes and when I tried again, it
> > was back to normal.
> > But yesterday it just remained in this wierd state.
> >
> > Any suggestions to make it behave?
> > I made sure that the pitch bend wheel was centred at power up.
> > The VCOs are switched to "stretch tuning" inside, but that's never
> > been a problem before, and this is orders of magnitude more
> stretched
> > than that.
> >
> > It's not a NiCd battery calamity, as my Polysix was upgraded a few
> > years ago to a "PolysixM" (with lithium battery) (Johannes
> > Hausensteiner's mod)
> >
> > DAVID
> >
>