Re: [PolySix] Re: Notes go out of pitch
2004-01-24 by Johannes Hausensteiner
I read from the schematic: * Q12 is a dual npn transistor, common emitter. The used type is 2SC1583. I found a company Dönberg Electronics, who does sell this
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Re: Notes go out of pitch
2004-01-24 by Peter Andersson
Wow, that s very useful info! Thanks Johannes! The control voltage must be crucial for the expo conversion to work properly then. If any of the amplifier
Polysix for sale
2004-01-24 by formercakid
I am selling my Polysix, asking $500.00 for it. It recently was refurbished by a tech - new replaceable battery, all key contacts/boards cleaned, all pots
Re: [PolySix] Re: Notes go out of pitch
2004-01-23 by Johannes Hausensteiner
The hold capacitors are C56 in unit0..5. But I do not think that it is the hold capacitors very likey. If it were, not all six voices would be affected
Re: Notes go out of pitch
2004-01-21 by Peter Andersson
Yes, it s an old production unit alright. I ve checked the wires between the 366 and the 396. It seems ok, the solder joints too. Can you tell me which major
Re: [PolySix] Re: Notes go out of pitch
2004-01-21 by Johannes Hausensteiner
From what you tell I would say it is a problem on the KLM-366, in the log/lin conversion/tuning section. Or maybe you have one of the rare old production
Re: Notes go out of pitch
2004-01-21 by Peter Andersson
Actually, tones are quite stable even during the first 20 minutes, but the synth is not in tune generally. Also, an octave is a quite stable major 7 interval
Re: [PolySix] Notes go out of pitch
2004-01-20 by Johannes Hausensteiner
It is not normal that it takes 20 miuntes to tune up. Usually it takes about 10sec to tune and then it is quite stable. Check the following: hold a key down
Re: [PolySix] Re: Key Contacts (was: I want a Polysix but...)
2004-01-20 by Johannes Hausensteiner
I think it will not last forever - of course. But probably it will last far longer than when you just clean it (thats what I did before- cleaning every two or
Re: [PolySix] Re: Key Contacts (was: I want a Polysix but...)
2004-01-19 by roy s.
yes, johannes posted this in response to a question i had a while back... and yes, this method works great and is easy. i also live in the NE usa (nyc) and the
Key Contacts (was: I want a Polysix but...)
2004-01-19 by Johannes Hausensteiner
... Hi, I attach here one of my own posts I sent several months ago. It works until now without any problem. I can recommend this method
Notes go out of pitch
2004-01-19 by Peter Andersson
Hi all, I m the proud new owner of a Polysix. I love it! Can t take my hands off those knobs - the filters are just great! But I m having a problem with it and
Re: [PolySix] MG MOD function selection
2004-01-19 by Johannes Hausensteiner
Hi, The LFO Mode switch has 3 positions: VCA/VCF/VCO. This is encoded to 2 digital bits, so it is normal that in one position the switch is unconnected. The MG
Re: Key Contacts (was: I want a Polysix but...)
2004-01-19 by toorglick
Johannes, I saw this post of yours and have been considering this as a solution. My primary concerns are: Will the tape last? Will the foil last? Would the
Re: I want a Polysix but...
2004-01-19 by toorglick
I asked a similar question which was never really answered here in context, so I can empathize. ... Old Crow s site will give you enough information to keep a
MG MOD function selection
2004-01-17 by analogfuture
Hi! My Polysix has had its screws put back in place and I ve only been making sounds with it for a while. It mostly works more or less as it should. At times
New poll for PolySix
2004-01-17 by PolySix@yahoogroups.com
Enter your vote today! A new poll has been created for the PolySix group: Does your Polysix have midi? o Yes, and I love it! o Yes, but I regret it... o No,
New poll for PolySix
2004-01-17 by PolySix@yahoogroups.com
Enter your vote today! A new poll has been created for the PolySix group: My Polysix... o is the object of my love o sounds like a VCF d ogre-fart o needs
Re: PWM diagnostics
2004-01-16 by ciscomanvann
Eh, I just checked pins 1 and 3 of ic13 and they both read 4.97 volts. I thought they read different before but maybe i was doing something wrong. Any ideas?
PolySix Newcommer
2004-01-15 by ANDREW
Hey everyone! Does anyone know of a repair site close to my location?? Live in Chilliwack B.C Yeah I don t know what happened but my Korg Polysix stopped
I want a Polysix but...
2004-01-15 by mike_melon
Hi list, I am considering going for a polysix but am put off by some quality/durability horror stories I ve read. I have only ever owned one analogue synth- a
Re: [PolySix] Re: PWM diagnostics
2004-01-13 by Johannes Hausensteiner
Yes. When you measure on pin1 there will be a certain voltage. The PWM SPEED will be fixed at this point. When you measure at IC13/pin3, does the voltage
Re: PWM diagnostics
2004-01-11 by ciscomanvann
Well, if that is the case ic13 is craped out. Would that cause my synth to play when in PWM mode but not be able to change the PWM shape or speed?
Re: PWM diagnostics
2004-01-11 by ciscomanvann
Eh, i just like the sound of a 2040. Soooo, how about you mod my polysix to use 2040 s and make them bandpass, highpass and lowpass :-)
Re: [PolySix] Re: PWM diagnostics
2004-01-11 by Johannes Hausensteiner
Hi, How to determine the pin number of an IC: e.g. DIL-8 case: 8 7 6 5 +|-|-|-|+ notch: | +|-|-|-|+ 1 2 3 4 ^ pin no. one I hope this helps ...
Re: [PolySix] Re: PWM diagnostics
2004-01-11 by The Old Crow
Hm, I still need to do that triple res. mod website. Right after I do the 2nd VCO for Polysix site. ;) The 2040 is not a drop-in for the 2044. A 2040 can be
Re: PWM diagnostics
2004-01-11 by ciscomanvann
Crow, When are you going to add the section to your site titled, Give Your Polysix a Korg PS3100-style Triple Resonant Filter ? Also, is it possible to
Re: PWM diagnostics
2004-01-11 by ciscomanvann
OK, when I am looking at the IC how do i know which pin is pin 1? I found one pin on IC12 that measures +/- 4.7 v but no pin that changes on IC13. Hmm
Re: What I have so far
2004-01-07 by toorglick
Take a look at the traces around IC30, IC 25, R91 and C10. Especially the latter two. If I remember correctly I had to rewire all of the traces near R91 and
What I have so far
2004-01-07 by analogfuture
Another session yesterday. Cleaned all pot/switch boards in control panel. Gobs of filth came off, still haven t gotten the stink of old nicotine out of my
A little progress
2004-01-06 by analogfuture
So yesterday I took out the KLM-367 to examine it more closely. It s easy to see that the whole board has had a serious cleaning at one point (first battery
Re: PWM diagnostics
2004-01-05 by ciscomanvann
Thanks so much! I will break out the meter tonight and let you know what I find. I REALLY do appreciate it as while this synth arrived in pristine shape, I can
Re: [PolySix] Doing my homework
2004-01-05 by Johannes Hausensteiner
Hi, Check the line P24 from the patch CPU (pin35 of IC22 on KLM-367). It is the clock line for the latches for these signals (Octave, etc.) crashes
Re: [PolySix] Re: PWM diagnostics
2004-01-05 by Johannes Hausensteiner
On KLM-367 check the following: * IC12 (TL072) pin1: must be -5V .. +5V according to PW/PWM poti if not, replace IC12 * IC13 (4558) pin1: must be -5V .. +5V
Re: PWM diagnostics
2004-01-04 by ciscomanvann
Nothing happens. It plays, but the width or pwm does not change. I have a multimeter, how do i check this stuff out? I dont know a whole lot about ICs. ... to
Re: Doing my homework
2004-01-03 by toorglick
Have faith! My experience was that while it looked good initially, only after removing the board and taking a look at it with light shining throught the back
Doing my homework
2004-01-02 by analogfuture
Hello, I have spent the better part of the day sifting through old posts to this forum, which proved very useful... I suffer from a certain degree of phobia
Cleaning PCBs & pots
2004-01-02 by analogfuture
Hello all, I just signed up today. I bought a Polysix off ebay which I arrived here in Trondheim, Norway just before the holidays. It needs a fair amount of
Re: [PolySix] PWM diagnostics
2003-12-31 by The Old Crow
First thing to do is set VCO to PW and move the width knob from 0 to 10 and back to 0 and listen to see if it changes accordingly. Then set it to 10 and
OT: Monopoly tune up
2003-12-31 by ciscomanvann
I know this is a bit off topic, but since the two are cousins I thougut I would bring it up. I have a Korg MonoPoly that I would like to sample the heck out
PWM diagnostics
2003-12-31 by ciscomanvann
I know this sounds stupid, but how can i tell if the PWM is working? If it is not, where do I start looking to fix it? Thanks!
Re: Poly-Six band pics....
2003-12-29 by treen0
Polysics They re pretty huge in Japan, they ve got two american releases. Highly devo-influenced.
Re: What's better Polysix or mono/poly? BOTH are good
2003-12-26 by ciscomanvann
Very interested to see what others are doing with the polysix. Post away my new friend. ... really want ... interested I can ... interesting ... template, ...
Re: I'm sorry, I still didn't get something.
2003-12-25 by the_lonesomes
... Yes! Thank you! Finally I understand now! There are 6 osc, but they share common VCO and VCF controls. There are 6 oscillators because that s the only way
Re: [PolySix] What's better Polysix or mono/poly? BOTH are good
2003-12-25 by Alessandro Bufalini
... LOL AleX
Re: [PolySix] I'm sorry, I still didn't get something.
2003-12-25 by Chromatest J. Pantsmaker
it s one oscillator per voice for the polysix. each voice has it s own vco and vcf, although they all share a common fx unit. you can stack them to get
I'm sorry, I still didn't get something.
2003-12-25 by the_lonesomes
I m still very confused. Does the Polysix have one oscillator or six? everywhere I read they say it has one VCO (=voltage controlled oscillators) and then the
What's better Polysix or mono/poly? BOTH are good
2003-12-25 by Rich
The mono poly is too difficult for me to perform with though I really want to, I use the polysix live. I have some sound templates I ve made up of sounds I
Re: What's better Polysix or mono/poly?
2003-12-24 by ciscomanvann
Polysix has one vco for each voice. Up so six voices can be played at a time. Each voice will have the same tibre as they are using the same envelope, vco
Cleaning your synths
2003-12-24 by toorglick
Along with my PolySix I have a few Rolands with metal panels that despite my best efforts I can t get the fingerprints off. What s the best way to clean those