Thanks Don, I was just thinking of posting if anyone had compiled a list of all the mistakes in the P6 SM ... but you beat me to it! Thanks a lot for this. I'm about to dig into my P6, but I don't have a ton of tech experience so mistakes in the SM can really set me back a while before I realize the source of the confusion. Cheers, James Sent from my iPhone On 2012-07-24, at 8:45 PM, "backshall1" <backshall1@bellsouth.net> wrote: > Okay, I pulled out my paper copy of the schematic which has all the errors > I’ve noticed so far. I should have done this earlier instead of relying on > the pdf file to answer questions. > > 1) On IC30,31, pin 5 in connected to +5v, not pin 4. > > 2) IC30 ground pin is pin 7, not pin 1. > > 3) The 14042 below IC26 is IC24, not IC34. > > 4) The capacitor connected between R28 and pin 6 of IC3 is C5, not C4. > > 5) The diode on pin 9 of IC29 is D13, not D12. > > 6) The diode on pin 15 of IC29 is D14, not D13. > > 7) The signal from pin 7 of IC14 is MG Level, not MG SPeed. > > 8) Capacitor C33 is connected to the collector of Q5, not the other side of > R98. > > Those are the errors I have marked in red. There may be more changes on this > sheet that I failed to highlight in red so they are not immediately visible. > > Don B. > > _____ > > From: PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com] On Behalf Of > tonezone020 > Sent: Tuesday, July 24, 2012 9:01 PM > 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 <mailto:PolySix%40yahoogroups.com> , Peter > Mörck <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 <mailto:PolySix%40yahoogroups.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 Mörck > > <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 <mailto:PolySix%40yahoogroups.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.gi > f > > > > > > 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 Mörck > > > > <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 <mailto:PolySix%40yahoogroups.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 <mailto:PolySix%40yahoogroups.com> , > Peter Mörck <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 <mailto:PolySix%40yahoogroups.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 <mailto:PolySix%40yahoogroups.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 > <mailto:PolySix%40yahoogroups.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%40yahoogroups.com> [mailto:PolySix@yahoogroups.com > <mailto:PolySix%40yahoogroups.com> ] > > > On > > > >> > Behalf Of > > > >> > > > > Peter Mörck > > > >> > > > > Sent: Monday, July 23, 2012 8:25 PM > > > >> > > > > To: PolySix@yahoogroups.com > <mailto:PolySix%40yahoogroups.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> <mailto:PolySix%40yahoogroups.com> > > > >> > > > > Sent: Tuesday, July 24, 2012 1:45 AM > > > >> > > > > Subject: [PolySix] Re: Polysix contact strip > > > >> > > > > > > > >> > > > > Hi, > > > >> > > > > > > > >> > > > > Looking at the schemat > [Non-text portions of this message have been removed]
Message
Re: [PolySix] Re: Polysix contact strip
2012-07-25 by w.james.meagher@gmail.com