Discussion about the Korg PolySix synthesizer

hi there is the trident still for sale as im very interested.i am in 
the uk

regards

ady 
-

-- In PolySix@yahoogroups.com, Niels Ott <niels.ott@...> wrote:
>
> Hi again,
> 
> I found that I just don't find the time any soon to fix my Trident 
MK2.
> Defects as described below. I won't find much time before August or 
even
> later and I'm low of cash and my cheap studio monitors are 
signaling the
> end of there life...
> 
> So in case anybody is interested in buying it, please make offers 
in ¤
> off-list.
> 
> My offer includes:
> 
> - Korg Trident MK2 with defect named below, plus a scratch on the
>   wooden side. Besides that in good condition!
> - Battery has been replaced
> - Joystick has been replaced by other part
> - 2x SSM 2044 NEW! but old stock
> - 1x SSM SSM2056 used
> - 2x 4066 quad CMOS switch
> - 5x 4558 dual OpAmp
> - Printouts of data sheets for all ICs named above.
> - Printed service manual on A3 as available online
>   (however, not perfect quality)
> - Custom made transport case in mint condition!!!
>   (wooden flight case with aluminum edges)
> 
> Sooner or later I'll put it on Ebay for a fixed price but I'd be 
happy
> to avoid this extra work and just sell to some enthusiast here on 
he list.
> 
> I will arrange shipping within the EU, however I need to figure out
> costs. (Outside the EU is not such a good idea because of customs 
etc.)
> Payment could be done via PayPal or bank transaction.
> 
> Best,
> 
>    Niels
> 
> Niels Ott schrieb:
> > Hello there,
> > 
> > my Trident MK2 is defective.
> > 
> > Symptom: VCO 1 is defective for one voice.
> > 
> > Up to now I was able to found out: Input 1 of IC704 (4x CMOS 
switch) on
> > KLM-379 doesn't get the VCO signal on voice 7. On all others it 
does.
> > 
> > There are some oddities with op amp IC707 but I'm not yet sure. 
The
> > schematics and the circuit board design hint to the direction 
that IC707
> > "feeds" IC704.
> > 
> > The IC707 is a 4558, I assume that it is similar in the Polysix.
> > 
> > Did anybody of you experience a similar problem? What about 
replacing
> > the 4558, did this help?
> > 
> > Furthermore, some of the 4558s carry a date stamp of 1997 which 
means
> > they must have been replaced by an earlier owner.
> > 
> > Unfortunately there is no shop selling electronic parts in reach 
so I
> > can't just go for it and try replacing it. Mail order is an 
option but
> > not for a few ICs...
> > 
> > Thank you for commenting.
> > 
> > Best,
> > 
> >   Niels
> > 
> >
>