on 8/26/03 9:08 AM,
PolySix@yahoogroups.com at
PolySix@yahoogroups.comwrote:
>
> Message: 1
> Date: Mon, 25 Aug 2003 17:23:44 -0400 (EDT)
> From: The Old Crow <oldcrow@oldcrows.net>
> Subject: I finally managed to make new a KLM-367
>
>
> After years of procrastinating, I spent this past weekend creating
> schematic and PCB files for the KLM-367A. It has gotten to the point
> where it takes less time to assemble a new board than to repair a damaged
> one. Thus, I will be offering new replacement boards in the very near
> future. Here is an image of the layout:
>
> http://www.oldcrows.net/~oldcrow/klm367a_img.gif
Wow! My hat is off to you crow, Well done!
(What a monumental undertaking you have done!)
I am better known as a modular fan, but I also have a couple of PolySixes
in my arsenal of goodies. I really love them!
(Basically all I use are my Modcan / Cynthia hybrid modular system with
two Aries analog keybaords, and two PolySixes.)
In fact I've been wanting to add jacks to my P6 to interface it with my
modular... Simple mods that I've been wanting to do is add an LED for the
third LFO and make the LFO outputs available, as well as converting the
trigger from Moog S-type over to um, "Arp" type.
There are many other mods that would be cool, in fact If anyone has some
cool mods they've done I'd love to hear about them. (As you can see here I
am not a purist, as far as keeping my Poly's "stock" looking).
(It would be cool if your new PCB layout facilitated a few mods easily?)
It's really refreshing to see this level of commitment to the machine Scott.
I think would like to get a couple of these new boards when you have them
made, and am Very interested in facilitating the MIDI mod as well.
Do you suggest these boards just for units are found broken, or also for
PolySixes that have already had their battery problems repaired?
I hope that I don't upset anyone here with this next comment, but...
Does anyone really ~want~ to deal with that cassette interface? (Gak!)
I've often thought that that entire section could be replaced with something
much more interesting, (or even a small floppy disk drive or the little
flash memory cards thingies that go into digital cameras in order to save
patches).
(Personally, I stopped dealing with cassette data interfaces back in 1978
with my old Apple ][+ and I'm not going back! LOL!)
Thank you for such an inspiring job Crowster!
Cynthia
www.cyndustries.com
(ps, anyone who wants to sell disabled or broken Korg Poly Sixes please
contact me privately thanks!)
>
> Notice the 3V CR2032-type coin cell socket that replaces the evil, old
> NiCad battery. ;)
>
> I known this for a long time, but I might remark that the Polysix
> service manual's KLM-367 schematic has a few errors. My schematic is
> "correct" as it is derived from the manual's schematic but cross-checked
> against the actual board layout. The result is the exact same circuit as
> is implemented on original KLM-367s.
>
> Once I build and test a few of these boards, I'll make a few revisions
> to better support adding in Ricard Wolf's MIDI retrofit as well as the
> little bit of hardware needed to support adding in my "2nd VCO PCB" which
> provides 2 VCOs per voice similar to the Trident.
>
> Crow
> /∗∗/