Discussion about the Korg PolySix synthesizer

Hi,

Followed those thru and all are good.

One thing I noticed re saving MG parameters is in fact they do save, but are recalled at a higher value. 

Is this a calibration problem ?

Thanks

--- In PolySix@yahoogroups.com, "peterm" <peterm@...> wrote:
>
> hi,
> 
> If a setting works, as in you can create a sound and it works as expected, but somewhere between saving and recalling the patch something goes wrong, I bet you have problems with memory access.
> IC32 is the memory.
> 
> Check for continuity between the IC22 pins 12-15 pins to IC32 pins 11-14 respectively.
> Those are the 4 databits.
> 
> Also, check for continuity between pins 1,2,10,11 of both IC24+IC26 to IC32 pins 1,2,3,4,6,7,16,17 respectively.
> You have to look at the schematics to see which pins should connect to which.
> Also, check for continuity between IC22 pin 21 to IC32 pin 5.
> As well as IC22 pin 22 to IC32 pin 15.
> Those are the address bits.
> 
> There's some more logic around the memory control lines but at least start with those :)
> 
> BR,
> Peter
> 
> ----------------------------------------
>  From: "tonezone020" <swamp.gigs@...>
> Sent: Wednesday, July 25, 2012 3:28 AM
> To: PolySix@yahoogroups.com
> Subject: [PolySix] Re: Polysix contact strip
> 
>        
> 
> Hi,
> 
> Yes, I think the top IC34 could be IC24 re the scan.
> 
> At the moment a lot of the synth seems to be working. The main problem area seems to be in saving patch changes. If I save any EG changes I can recall it. Sub Osc and Octave store too.
> 
> Any other changes - MG, VCO, VCF, Effects and Key Assign Mode work but don't get stored.
> 
> Any pointers as to what might be happening there ?
> 
> Regards...
> 
> --- In PolySix@yahoogroups.com, Peter M�rck <peterm@> wrote:
> >
> > It may be, but it still has the same errors on KLM-367 we have just been 
> > discussing :)
> > Thanks anyway. Looks like a good scan.
> > 
> > BR,
> > Peter
> > 
> > ----- Original Message ----- 
> > From: "james meagher" <w.james.meagher@>
> > To: <PolySix@yahoogroups.com>
> > Sent: Tuesday, July 24, 2012 11:22 PM
> > Subject: Re: [PolySix] Re: Polysix contact strip
> > 
> > 
> > I believe that this is the most clear, complete and up to date Polysix
> > service manual on the web:
> > http://www.synfo.nl/servicemanuals/Korg/POLYSIX_SERVICE_MANUAL.pdf
> > 
> > Hope it helps!
> > James
> > 
> > 
> > 
> > On Tue, Jul 24, 2012 at 4:17 PM, Peter M�rck 
> > <peterm@>wrote:
> > 
> > > **
> > >
> > >
> > > Oh, nice :)
> > > Thanks for that.
> > >
> > > Right, now listen to Jed, he knows better ;)
> > > Sorry for the confusion but I was only looking at the old scanned
> > > schematics, and they're obviously full off mistakes...
> > >
> > >
> > > BR,
> > > Peter
> > >
> > > ----- Original Message -----
> > > From: "Jed Jorgensen" <jed.jorgensen@>
> > > To: <PolySix@yahoogroups.com>
> > > Sent: Tuesday, July 24, 2012 10:43 PM
> > > Subject: Re: [PolySix] Re: Polysix contact strip
> > >
> > > oops -- meant to post this too:
> > >
> > > http://www.oldcrows.net/~oldcrow/synth/korg/polysix/crowlm367/klm367a_img.gif
> > >
> > > On Tue, Jul 24, 2012 at 1:43 PM, Jed Jorgensen
> > > <jed.jorgensen@>wrote:
> > >
> > > > Crow's schematic can be a big help:
> > > >
> > > >
> > > http://www.oldcrows.net/~oldcrow/synth/korg/polysix/crowlm367/klm367a_eagle_schem.gif
> > > >
> > > > I also track things using his 'see-through' board layout (from which the
> > > > clones were derived). It is the same as the original (except the
> > > battery).
> > > >
> > > > j
> > > >
> > > >
> > > > On Tue, Jul 24, 2012 at 1:35 PM, Peter M�rck
> > > > <peterm@>wrote:
> > > >
> > > >> **
> > > >>
> > > >>
> > > >> Damnit!
> > > >> The 14042 below IC26 in the schematics is marked IC34, but I see now
> > > >> there's
> > > >> another IC34 down in the lower right.
> > > >> Ok, add another typo and give it credit for some more confusion...
> > > >>
> > > >>
> > > >> ----- Original Message -----
> > > >> From: "Jed Jorgensen" <jed.jorgensen@>
> > > >> To: <PolySix@yahoogroups.com>
> > > >> Sent: Tuesday, July 24, 2012 9:55 PM
> > > >> Subject: Re: [PolySix] Re: Polysix contact strip
> > > >>
> > > >> Is that a typo (34 vs 24)?
> > > >>
> > > >> IC26 pin 5 should go to IC24 pin 5.
> > > >>
> > > >> jed
> > > >>
> > > >> On Tue, Jul 24, 2012 at 12:21 PM, tonezone020
> > > >> <swamp.gigs@>wrote:
> > > >>
> > > >> > **
> > > >>
> > > >> >
> > > >> >
> > > >> > Hi Peter,
> > > >> >
> > > >> > I bridged IC26 pin 5 --> IC34 pin 5 and there's continuity to IC22 
> > > >> > pin
> > > >> 11
> > > >> > , however doing so knocked out the Bank A thru to Write switches and
> > > >> when
> > > >> > the I change patch switches, the sound played doesn't.
> > > >> >
> > > >> > Any pointers to where to look ?
> > > >> >
> > > >> > Thanks
> > > >> >
> > > >> > Tone
> > > >> >
> > > >> >
> > > >> > --- In PolySix@yahoogroups.com, Peter M�rck <peterm@> wrote:
> > > >> > >
> > > >> > > Hi,
> > > >> > >
> > > >> > > Regarding IC26 pin 5 --> IC34 pin 5:
> > > >> > >
> > > >> > > Yes, they should be connected to eachother.
> > > >> > > But more importantly, do any of them have contact with pin 11 of 
> > > >> > > the
> > > >> > 8048 (IC22) ?
> > > >> > > IC26 and IC34 are latches, controlled by pin 11 of the 8048.
> > > >> > > The fact that IC26 and IC34 have pins 5 connected to eachother
> > > >> > > doesn't
> > > >> > necessarily mean any of them will work, unless they in turn are
> > > >> connected
> > > >> > to the 8048 pin 11.
> > > >> > > So connection between IC22 pin 11 <--> IC26 pin 5 <--> IC34 pin 5 
> > > >> > > is
> > > >> > what you need.
> > > >> > >
> > > >> > > BR,
> > > >> > > Peter
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > > ----- Original Message -----
> > > >> > > From: tonezone020
> > > >> > > To: PolySix@yahoogroups.com
> > > >> > > Sent: Tuesday, July 24, 2012 11:59 AM
> > > >> > > Subject: [PolySix] Re: Polysix contact strip
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > > Erm,
> > > >> > >
> > > >> > > Correction - that should be IC24 p2, 1, 11, 10 that is connected to
> > > >> IC32
> > > >> > p2, 1, 17, 16
> > > >> > >
> > > >> > > Cheers,
> > > >> > >
> > > >> > > Tony
> > > >> > >
> > > >> > > --- In PolySix@yahoogroups.com, "tonezone020" <swamp.gigs@> wrote:
> > > >> > > >
> > > >> > > > Hi Don and Peter,
> > > >> > > >
> > > >> > > > Your messages have been very helpful consequently I've discovered
> > > >> > anomalies elsewhere...
> > > >> > > >
> > > >> > > > IC26 p5 doesn't connect to IC34 p5 - should I bridge this ?
> > > >> > > >
> > > >> > > > IC26 to IC32 connections are all fine.
> > > >> > > >
> > > >> > > > Also I think there's a mistake in the schematics. Rather than 
> > > >> > > > IC34
> > > >> > connecting to IC32 it seems to be IC26 p2, 1, 11, 10 that is 
> > > >> > connected
> > > >> to
> > > >> > IC32 p2, 1, 17, 16
> > > >> > > >
> > > >> > > > Regards,
> > > >> > > >
> > > >> > > > Tony
> > > >> > > >
> > > >> > > >
> > > >> > > > --- In PolySix@yahoogroups.com, "backshall1" <backshall1@> wrote:
> > > >> > > > >
> > > >> > > > > Yes, there is an error in the schematics. Pin 5 is +5v, not pin
> > > >> > > > > 4.
> > > >> > Pin 4
> > > >> > > > > really does go to pin 12 on the 8048. I just checked a clone
> > > >> > > > > board
> > > >> > and an
> > > >> > > > > old original KLM-367. They are the same.
> > > >> > > > >
> > > >> > > > > Don B.
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > > _____
> > > >> > > > >
> > > >> > > > > From: PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com]
> > > On
> > > >> > Behalf Of
> > > >> > > > > Peter M�rck
> > > >> > > > > Sent: Monday, July 23, 2012 8:25 PM
> > > >> > > > > To: PolySix@yahoogroups.com
> > > >> > > > > Subject: Re: [PolySix] Re: Polysix contact strip
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > > You must be looking at the board layout drawing.
> > > >> > > > > The schematics are different and have no "layers". They just
> > > show
> > > >> > how it's
> > > >> > > > > connected without actual physical constraints.
> > > >> > > > >
> > > >> > > > > Anyway, I just looked and pins 1,4,10,13,14 of IC31 are tied to
> > > >> +5V
> > > >> > :)
> > > >> > > > >
> > > >> > > > > By the way,
> > > >> > > > > I assume there's an error in the schematics indicating pin 4
> > > tied
> > > >> to
> > > >> > pin12
> > > >> > > > > of the 8048, as it's also tied to +5V.
> > > >> > > > > Either that's pin 5 instead, or vice versa.
> > > >> > > > >
> > > >> > > > > IC31 is just a quad AND gate acting as a buffer. Each of the 
> > > >> > > > > AND
> > > >> > gates has
> > > >> > > > > one of its inputs tied to +5V so whatever appeard on the other
> > > >> input
> > > >> > will
> > > >> > > > > also appear on the output of that gate.
> > > >> > > > >
> > > >> > > > > The traces under IC31 are usually attacked by the battery acid
> > > >> > though and it
> > > >> > > > > is good if you do continuity testing around that area.
> > > >> > > > >
> > > >> > > > > BR,
> > > >> > > > > Peter
> > > >> > > > >
> > > >> > > > > ----- Original Message -----
> > > >> > > > > From: tonezone020
> > > >> > > > > To: PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com>
> > > >> > > > > Sent: Tuesday, July 24, 2012 1:45 AM
> > > >> > > > > Subject: [PolySix] Re: Polysix contact strip
> > > >> > > > >
> > > >> > > > > Hi,
> > > >> > > > >
> > > >> > > > > Looking at the schematics it's hard to tell - it doesn't seem
> > > >> > > > > like
> > > >> > there is
> > > >> > > > > one for the underside of the board ...
> > > >> > > > >
> > > >> > > > > Regards,
> > > >> > > > >
> > > >> > > > > Tony
> > > >> > > > >
> > > >> > > > > --- In PolySix@yahoogroups.com <mailto:
> > > PolySix%40yahoogroups.com>
> > > >> ,
> > > >> > Peter
> > > >> > > > > M�rck <peterm@> wrote:
> > > >> > > > > >
> > > >> > > > > > Just compare with the schematics?
> > > >> > > > > >
> > > >> > > > > > BR,
> > > >> > > > > > Peter
> > > >> > > > > >
> > > >> > > > > > ----- Original Message -----
> > > >> > > > > > From: tonezone020
> > > >> > > > > > To: PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com
> > > >
> > > >> > > > > > Sent: Tuesday, July 24, 2012 12:52 AM
> > > >> > > > > > Subject: [PolySix] Re: Polysix contact strip
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > > Hi,
> > > >> > > > > >
> > > >> > > > > > Thanks for your message.
> > > >> > > > > >
> > > >> > > > > > I managed to sort the strips out - they had stretched, but
> > > with
> > > >> a
> > > >> > bit of
> > > >> > > > > coaxing the keys are now working.
> > > >> > > > > >
> > > >> > > > > > Been slowly trying to fix the battery leak problem with a 
> > > >> > > > > > tiny
> > > >> bit
> > > >> > of
> > > >> > > > > success and Old Crow's advice from his site.
> > > >> > > > > >
> > > >> > > > > > I discovered pin numbers 13 and 14 on IC31 are connected. Do
> > > >> > > > > > you
> > > >> > know if
> > > >> > > > > this should be so? There seems to be a copper trace on the
> > > >> > > > > underneath
> > > >> > > > > circuitry. It also appears to be the same for IC30...
> > > >> > > > > >
> > > >> > > > > > Thanks,
> > > >> > > > > >
> > > >> > > > > > Tony
> > > >> > > > > >
> > > >> > > > > > --- In PolySix@yahoogroups.com <mailto:
> > > >> PolySix%40yahoogroups.com>
> > > >> > ,
> > > >> > > > > bastebraak <bastebraak@> wrote:
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > Is the old one damaged or just not working well. I fixed 
> > > >> > > > > > > the
> > > >> > contacts on
> > > >> > > > > my polysix with a paste i ordered online.
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > Verzonden vanaf Samsung Mobiletonezone020 <swamp.gigs@>
> > > >> schreef:
> > > >> > > > > > > Hi All,
> > > >> > > > > > >
> > > >> > > > > > > Does anyone know where I can get a couple of 6 bubble
> > > contact
> > > >> > strips or
> > > >> > > > > alternatives for my synth, preferably in the Uk ?
> > > >> > > > > > >
> > > >> > > > > > > Many thanks in advance,
> > > >> > > > > > >
> > > >> > > > > > > Tony
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > ------------------------------------
> > > >> > > > > > >
> > > >> > > > > > > Yahoo! Groups Links
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > [Non-text portions of this message have been removed]
> > > >> > > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > > [Non-text portions of this message have been removed]
> > > >> > > > > >
> > > >> > > > >
> > > >> > > > > [Non-text portions of this message have been removed]
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > > [Non-text portions of this message have been removed]
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > > [Non-text portions of this message have been removed]
> > > >> > >
> > > >> >
> > > >> >
> > > >> >
> > > >>
> > > >> [Non-text portions of this message have been removed]
> > > >>
> > > >> ------------------------------------
> > > >>
> > > >> Yahoo! Groups Links
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > 
> > 
> > 
> > -- 
> > C'est La Guerre Moving Pictures Inc.
> > 364 Home Street
> > Winnipeg, Manitoba
> > R3G 1X4
> > (204) 918 9317
> > 
> > 
> > [Non-text portions of this message have been removed]
> > 
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo! Groups Links
> >
> 
>         
> 
> 
> [Non-text portions of this message have been removed]
>