fixed! my friend specialized to repair old gear replaced some IC´s. he
told me that someone has earlier tried to fix it also, and there was
some amateur-soldering made. someone had manually, by soldering,
tresspassed two IC´s functions. how weird is that :)
thanks for helping!
--- In PolySix@yahoogroups.com, "gil_we" <gil_we@...> wrote:
>
> Very strange.... any battery leakage ?
>
> Also, you may want to try to replace any logic IC connected directly
> with the problematic control, placed on the front panel's pcb..
>
>
>
> --- In PolySix@yahoogroups.com, "roisto" <roisto@> wrote:
> >
> > thanks, i will try that. it does happen with 7th and 8th
> oscillators,
> > but only one at time. changing eg-mode seems to affect wich one is
> > malfunctioning.
> >
> > --- In PolySix@yahoogroups.com, "gil_we" <gil_we@> wrote:
> > >
> > > Does it happen only to one of the 8 oscillators ? if so, replace
> its
> > > SSM2044 chip....
> > >
> > >
> > >
> > > --- In PolySix@yahoogroups.com, "roisto" <roisto@> wrote:
> > > >
> > > > I mean that filter of the last two oscillators has somehow
> turned
> > > to
> > > > work negative. When cutoff filter is opened, one oscillator
> plays
> > > it
> > > > closed (like lowpass effect), and vice versa, when filter is
> > > closed,
> > > > one oscillator plays filter totally opened. Two modes at the Eg-
> > > mode
> > > > seems to change this effect between 7th and 8th osc. Thank you
> for
> > > > you reply.
> > > >
> > > > -t
> > > >
> > > >
> > > >
> > > > --- In PolySix@yahoogroups.com, "gil_we" <gil_we@> wrote:
> > > > >
> > > > > What do you mean by "opposite way" ??
> > > > >
> > > > > The replacements seems fine to me.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > --- In PolySix@yahoogroups.com, "roisto" <roisto@> wrote:
> > > > > >
> > > > > > I just got this synth and it has something wrong with 7th
> and
> > > 8th
> > > > > > voices. When i´m adjusting eg intensity, filters for the
> last
> > > two
> > > > > > voices are working opposite way :) i opened it and found
> that
> > > all
> > > > the
> > > > > > vcf:s were SSMT2044 except voice 8 wich was SSM2044 (maybe
> > > > someone
> > > > > > has changed one or all of them?!) and MC14066B chip at the
> 8th
> > > > voice
> > > > > > has been replaced with F 4066BPC (having "indiana" text on
> > > it)..
> > > > > > anyways battery was brand new inside the trident, and
> > > everything
> > > > else
> > > > > > seems to work 100%. Any ideas how to fix this?
> > > > > >
> > > > >
> > > >
> > >
> >
>