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
>
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