Re: [PolySix] LFO delay calibration and general tuning
2012-05-21 by troels jørgensen
Hi. I finally got both of my p6 s kind of working. (at least the 367 board is ok now). I cant seem to get the 6 voices to be completely in pitch over the
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Re: [PolySix] Replacement IC's
2012-05-18 by Troels Jørgensen
Got the 367 board working!! (I decided to unsolder all my wires and start over and now it works!) Thanks alot everyone. Now I need to tune both machines and
Re: Modwheel VCO VCF VCA Issue
2012-05-18 by djangowes
Oups! Sorry for the last question : it only needs to set PW/PWM at 10 when square pulse is selected to achive this sound...
Re: Modwheel VCO VCF VCA Issue
2012-05-18 by djangowes
Ok. I forget to ask something else. Is it possible with the P6 to select NO waveform (like on Junos), in order to get fsound from filter alone? thanks, Ed.
Re: Modwheel VCO VCF VCA Issue
2012-05-18 by djangowes
Hello Johannes, thanks. Interesting mod is to be able to get the two waveforms at one time. I ll try this. For the other ones, I m starting to think that a
RE: [PolySix] Replacement IC's
2012-05-18 by backshall1
I would not assume the TC5514APL3 is bad. This is the memory chip and is unlikely to affect the switch functions. It is also quite a bit more expensive than
[PolySix] Replacement IC's
2012-05-18 by troels jørgensen
Yesterday i changed IC28 and IC 31 - as far as i can see these have to do with octave switch and waveform select (D00-D03) - and they still dont work (along
Re: [PolySix] Re: Modwheel VCO VCF VCA Issue
2012-05-17 by Johannes Hausensteiner
You can find this along with more mods I had made to my P6 before I did the MIDI kit in the files section of the list (Files/Mods/P6_MODS.ZIP). Have fun!
Re: [PolySix] Re: Modwheel VCO VCF VCA Issue
2012-05-17 by Andrew Jury
Hi Team, Just for the record, routing the mod wheel to either the VCO or VCF is possible if you have one of Johannes¹s MIDI kits. This comes as an option
Re: Modwheel VCO VCF VCA Issue
2012-05-17 by djangowes
Hello, OK, I understand now. I thought the wheel could affect VCF OR VCA OR VCO (i m sure i m not the only one to have thought of this as it could be
RE: [PolySix] Re: Modwheel VCO VCF VCA Issue
2012-05-17 by backshall1
The mod wheel is always connected to the VCO, and never to VCF or VCA, unless someone had made other modifications to the KLM-367. The LFO has two outputs
Re: [PolySix] Modwheel VCO VCF VCA Issue
2012-05-17 by klosmon
From your description, everything is working correctly. The mod wheel on the Polysix is hardwired to the VCO -- it does not affect anything else. The controls
Re: Modwheel VCO VCF VCA Issue
2012-05-17 by djangowes
Ok. after some searches, I m pretty sure it comes from the KLM367. My P6 had a battery leak then has been repaired before I have it. I d like to know where is
Modwheel VCO VCF VCA Issue
2012-05-17 by djangowes
Hello all, I ve had a P6 for a year and I there is an issue about the modwheel. What it does is: _when Mod switch is set at VCO, then modwheel affects VCO
Re: [PolySix] Yet another battery leak victim..
2012-05-16 by troels jørgensen
Hmmm... I just cant seem to get this board working no matter what i do. When i turn the polysix i get 2 programs lighting - suggesting an error with the data
Re: [PolySix] Yet another battery leak victim..
2012-05-14 by troels jørgensen
Thanks alot!!:) Where are you from fellow Jorgensen? [Non-text portions of this message have been removed]
Re: [PolySix] Yet another battery leak victim..
2012-05-14 by Jed Jorgensen
I have to help a fellow Jorgensen! There s not so many of us! Here s the part that Andy recommends:
Re: [PolySix] Yet another battery leak victim..
2012-05-14 by Troels Jørgensen
Sorry, but I m not that much into electronics.. I m trying to find ic 28(14042) in the local electronics store and they didn t have it..So I ll have to order
Re: [PolySix] Yet another battery leak victim..
2012-05-12 by Troels Jørgensen
Hmm seems like i got a bit further. It seems to be a problem with ic28 (and probably 29). Cause whenever I desolder ic28 the octave switch works... Off to the
Re: [PolySix] Yet another battery leak victim..
2012-05-12 by Troels Jørgensen
And: how can I check if the 74L chips near the CPU/leak are still ok? Im not sure I can measure that with a normal voltmeter.. Sendt fra min iPhone ...
Re: [PolySix] Yet another battery leak victim..
2012-05-12 by Troels Jørgensen
Well well.. Here we go again with the next polysix.. It has the same problems as the earlier one: -sub osc doesn t work(one of the octaves actually works)
Re: [PolySix] Yet another battery leak victim..
2012-05-11 by Peter Mörck
Just calibrate it the way you want it. If you want to be able to mod the PW so much that the wave will not be audible, do that. If you don t, then calibrate it
Re: [PolySix] Yet another battery leak victim..
2012-05-11 by Malte Rogacki
... Yes, it s normal and the way it is supposed to be. From the User Manual: At 8 or above the pulse width becomes so narrow as to collapse, which produces
Re: [PolySix] Yet another battery leak victim..
2012-05-11 by james meagher
I m not with my Polysix right now, but I m pretty sure it shouldn t go silent (the pulse becomes so thin it creates no harmonics) until you get to the
Re: [PolySix] Yet another battery leak victim..
2012-05-11 by Troels Jørgensen
By the Way, about the pw. I m not sure I understood correctly, but is it normal that when I turn it to about 8, the wave will go away and I will get no sound
Re: [PolySix] Yet another battery leak victim..
2012-05-11 by Troels Jørgensen
It works! It Works!! Thanks alot for everyone s suggestions! (turned out I had missed a solder trace). On to repair the next polysix - i ll be back;) Sendt fra
RE: [PolySix] Yet another battery leak victim..
2012-05-10 by backshall1
Also, the octave and waveform switches and the PW/PWM level are all sent through IC28 (14042) so check down around there for damage. This chip might need to be
Re: [PolySix] Yet another battery leak victim..
2012-05-10 by Malte Rogacki
Check the traces originating from CN06 on the KLM367 board. BTW, the PW pot is probably just fine. If the waveform is set to PW (which it might well be since
Re: [PolySix] Yet another battery leak victim..
2012-05-09 by Terje Winther
It seems like you have not fixed every damaged/broken connection. Note that battery leakage can cause problems other places on the board as well, just not
Yet another battery leak victim..
2012-05-09 by abcceihgfosdjgooenje
Hello everyone. I hope someone here can push me in the right direction. I have a p6 with the battery leak problem. -When i opened up the unit the battery had
Re: [PolySix] Tuning problem
2012-05-03 by klosmon
Hola- Replaced some CMOS with no result, finally had success with a new 4558 at IC19. Thanks for the help -- this didn t used to be so difficult, but with 4 to
Re: [PolySix] Tuning problem
2012-04-30 by Andrew Jury
Hi, Probably some issues in the anti-log circuit. To verify note the voltages at IC31 pin 3. Try a C in each octave. This voltage should ramp up in a linear
Tuning problem
2012-04-30 by klosmon
Hello- I m working on an older version voice board (with the 396 add-on board) that won t tune. The six oscillators can be tuned to match at the low points &
Original Korg MIDI Retrofit Documentation?
2012-04-30 by voltergeist
Anybody have a line on documentation (installation, schematics, layout) of the original Korg USA Polysix MIDI Retrofit?
Re: Calibrating PolySix VCF section on KLM-366 question
2012-04-12 by sigma.draconis
Finaly got time to dive in this problem again. After concluding that the basic waveforms also are not correct, I found out that there was, shame on me, en
Calibration and CHD MIDI kit
2012-04-08 by Peter Mörck
Hi list, Sorry, long post about 2 problems: reset calibration and CHD MIDI kit. I have two separate problems with my Polysix. It s got an original (late
Re: [PolySix] Tuning Issue--the opto is replaced
2012-03-31 by Hayden Van Moskowitz
Actually this resistor has a very large maximum value so I can easily get it to 22k. But like I said, it seems to have no obvious effect. ... [Non-text
RE: [PolySix] Tuning Issue--the opto is replaced
2012-03-31 by backshall1
Wow, the trimmer has no real effect on scaling? Something is wrong there. Maybe the trimmer s maximum value is too small. I have never used a VTL5C3 and I see
Re: [PolySix] Tuning Issue--the opto is replaced
2012-03-31 by Hayden Van Moskowitz
There was a trimmer resistor replaced. I saw your advice in another thread and tried this, but it seemed the resistor had no real effect on scaling. I hooked
RE: [PolySix] Tuning Issue--the opto is replaced
2012-03-31 by backshall1
When using a trimmer resistor (I assume it replaces R93) with a new opto-coupler, it is best to set all other VRs (VR1,2,3) to mid-point, set the trimmer
Re: Keyboard Problem (key assigner)
2012-03-31 by del_poolp@hotmail.com
Thanks for your response !!! IT S WORK perfectly, very very thanks, my second polysix (old production) reborn !
Tuning Issue--the opto is replaced
2012-03-31 by genetik
Hi, I just picked up a polysix with the battery replaced and board cleaned up. Everything is functional. The only issue is tuning. I followed the service
Re: Noisy resonance
2012-03-29 by Ells
Thank you Richard! - Ells
Problem on KLM 368
2012-03-29 by aniello iaccarino
Hi guys I just ended to restore my polysix. I changed every (almost) electrolytic with new ones (high quality) and all mylar caps with wima polypropylene caps.
Re: [PolySix] Re: Keyboard Problem (key assigner)
2012-03-26 by Andrew Jury
Hi, I can confirm that I have fitted the clone board to both Polysix with old and new production KLM366 with no changes required. Can someone remind me again
Re: Noisy resonance
2012-03-24 by Richard
The signal to the output and the headphone share a common signal path from the effects board KLM-368 via CN15 pin 3. As you say it only causes a problem with
Re: [PolySix] Re: Keyboard Problem (key assigner)
2012-03-23 by Jed Jorgensen
I have no experience with an old production P6 either. Andy -- have any of the ones you ve worked been the old production units? Jed ... [Non-text portions of
RE: [PolySix] Re: Keyboard Problem (key assigner)
2012-03-23 by backshall1
I have never seen an old production KLM366/KLM396 before, but there is no old production KLM367A, so they must be the same in both machines. The clone is
Noisy resonance
2012-03-23 by Ells
Hey all, My Polysix just recently developed a symptom where patches with a good deal of resonance get quite noisy. It s like a white noise generator. Only
Re: Keyboard Problem (key assigner)
2012-03-23 by del_poolp@hotmail.com
You do not have an idea for my problem ? The equivalent for IC9 is TL072 and IC1 is a CD4011 (CMOS NAND GATES)?