Discussion about the Korg PolySix synthesizer

I sold it several weeks ago now.


--- In PolySix@yahoogroups.com, "BrainSlayer" <brainslayer@c...> 
wrote:
> is your polysix still available for sell?
> maybe i would buy it. 
> 
> Sebastian
> 
> ----- Original Message ----- 
> From: "toorglick" <toorglick@y...>
> To: <PolySix@yahoogroups.com>
> Sent: Tuesday, August 31, 2004 4:31 PM
> Subject: [PolySix] Re: Son of a b****
> 
> 
> >I was never able to figure out what the cause was.  I went through 
> > everything on that side of the board and couldn't find a bad 
> > connection or failed component.  Good luck!
> > 
> > 
> > --- In PolySix@yahoogroups.com, "brainslayer666" 
<brainslayer@c...> 
> > wrote:
> >> in the last month we are talking about an lfo issue that sounds 
> > like 
> >> a distortion. and voila, now i get the same problem. really 
> > strange. 
> >> if i adjust the phaser/chorus speed, i get strange sounds and 
i'm 
> >> unable to restore it back. and from this point its impossible to 
> >> disable the lfo level too. some sliders are doing really strange 
> >> things (sustain adjusts cutoff eg). 
> >> mmh so far it can't be the IC30/31 problem, since i already 
> > replaced 
> >> it. (and i changed it again, to check if something is damaged 
again)
> >> did someone found a solution for this problem?  
> >> 
> >> 
> >> --- In PolySix@yahoogroups.com, "BrainSlayer" <brainslayer@c...> 
> >> wrote:
> >> > if you trigger the lfo to frequency oscillation and adjust the 
> > lfo 
> >> frequency to maximum, you will get also very heavy distorted 
> > sounds. 
> >> and that sounds like the IC30/31 problem. but i discovered also 
> >> other issues that effects the lfo. the cables from the board to 
the 
> >> top the control board are very short. sometimes if i open my 
case 
> >> they lost the contact and i get strange effects too
> >> >   ----- Original Message ----- 
> >> >   From: toorglick 
> >> >   To: PolySix@yahoogroups.com 
> >> >   Sent: Monday, July 19, 2004 5:58 PM
> >> >   Subject: [PolySix] Re: Son of a b****
> >> > 
> >> > 
> >> >   Yeah, it sounds more like the or *a* LFO gone haywire, but 
at a 
> >> >   frequency where it sounds more like distortion.  
> >> > 
> >> >   The only other conclusion I can come to is that I fried IC30 
> >> when 
> >> >   installing the new chip.  The electronics store I go to 
didn't 
> >> have 
> >> >   any 14 pin IC sockets.  Maybe I'll stop by Radio Shack to 
see 
> > if 
> >> they 
> >> >   do.  That and the initial I repairs I made weren't robust 
> > enough 
> >> or 
> >> >   didn't catch everything breaking down.
> >> > 
> >> >   Fortunately I have five more 74LS08's left!
> >> > 
> >> >   One thing I noticed while checking traces and other 
connections 
> >> on 
> >> >   the board is that not all of the connections read the same 
> >> value, 
> >> >   though they all fall within certain value groups, as it 
were.  
> >> Would 
> >> >   anyone mind telling me what I should be seeing?
> >> > 
> >> >   Also, can anyone tell me what R17 is?  On the schem it's 
> >> called "RKC 
> >> >   1/8 88 10k".  What does it do?  Can I get a new one 
readily?  
> >> > 
> >> >   The reason I ask is because I'm thinking about starting from 
> >> scratch; 
> >> >   removing the jumps I made before; replacing ICs 30 & 31 and 
> >> possibly 
> >> >   R17.  Since I've had my Polysix and have seen pictures of 
> >> others' 
> >> >   KLM367s it looks as though mine was/is in pretty rough 
shape.  
> > A 
> >> lot 
> >> >   of the solder points above the battery area are dull, and 
some 
> >> have 
> >> >   visibly corroded.  I've checked them all, include a lot of 
what-
> >> are-
> >> >   they-called? vias? (the areas where the path switches from 
the 
> >> bottom 
> >> >   to the top and vice-versa) and all check out, but some 
> >> look "bad."
> >> > 
> >> >   Anyway, that's my story.  I really prefer to be playing 
instead 
> >> of 
> >> >   fixing, but nothing sounds like a *real* Polysix and thus 
I'm 
> >> >   addicted.  Any input is appreciated.
> >> > 
> >> > 
> >> >   --- In PolySix@yahoogroups.com, "BrainSlayer" 
> > <brainslayer@c...> 
> >> >   wrote:
> >> >   > sounds like a lfo problem
> >> >   >   ----- Original Message ----- 
> >> >   >   From: reidar@j... 
> >> >   >   To: PolySix@yahoogroups.com 
> >> >   >   Sent: Monday, July 19, 2004 1:47 AM
> >> >   >   Subject: Re: [PolySix] Son of a b****
> >> >   > 
> >> >   > 
> >> >   > 
> >> >   >   That sounds like what my P6 is doing too - like the mod 
> >> wheel is 
> >> >   fully on.
> >> >   >   Everything is 'bubbling'.  I have found that the PWM 
width 
> >> >   control seems to
> >> >   >   have the best effect on it, but also, if I leave the P6 
> >> switched 
> >> >   on for an
> >> >   >   hour or so, it goes away.  I'm not an electronics-type, 
so 
> > I 
> >> >   really don't
> >> >   >   have a clue, but the fact that it goes away (usually) 
after 
> >> a 
> >> >   long warm-up
> >> >   >   might mean something to some of you?
> >> >   > 
> >> >   >   Reidar
> >> >   > 
> >> > 
> >> > 
> >> > 
> >> > 
> >> >   PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6 
> >> > 
> >> > 
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> >> > 
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> >> > 
> >> > [Non-text portions of this message have been removed]
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> > 
> > 
> > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6 
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