Re: Question about dead polysix
2010-11-03 by Paulo
Andy, Many thanks for the wise words, I´ll check the data bus asap.
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Re: [PolySix] Re: Question about dead polysix
2010-11-03 by Andrew Jury
Hi Paulo, Yes, afraid to say this is what I used to do when I first started repairing Polysix. Changing just about every IC in the hope that it would fix the
Re: Question about dead polysix
2010-11-03 by Paulo
Yeah sorry I realize pctech333 is dealing with an old 367a as well. Well this Polysix I´m trying to restore had the battery leakage problem, which I repaired
Re: [PolySix] Re: Question about dead polysix
2010-11-03 by Andrew Jury
Hi, Sorry, I must be missing a post here, this isn¹t making any sense. Can you describe the exactly problem with the 367? I may well be able to help you with
Re: Question about dead polysix
2010-11-03 by Paulo
Hi, I´ve got the exact same problem with an old 367a. Can someone help, please?
Re: another p6 problems after battery leak
2010-10-20 by radek
hi i ve noticed that pin 1 and 4 of connector comming from buttons board was broken. fixed it :) D4 disappeared :) but A1 are still lit :( also, when i switch
Re: [PolySix] another p6 problems after battery leak
2010-10-19 by Andrew Jury
Hi Radek, If D3 is permanently lit then data bus component DO3 with be stuck low. Check the connectivity of IC22 pin 15 to IC31 pin 2, IC31 pin 3 out to every
another p6 problems after battery leak
2010-10-18 by radek
i have another p6 that had battery leak problem. i ve repaired bad traces and checked cpu, ic30 and 31 few times pin by pin and every connection seems to be
Re: Just checking in regarding the KLM 367 Replacement Board
2010-10-15 by kroffe606
I also got the orginal midi-kit that can be seen in the photos-section on this list:
[PolySix] Re: Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Malte Rogacki
... I have the PCB and instructions for a Johannes Hausensteiner kit here; the instructions mention the following mandatory changes to KLM-367: B) On KLM-367:
Re: Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Mike
IC 32 has been removed on the KLM-367. That s about the only thing that I can tell so far. My MIDI board says Korg USA, Made in USA and 67-0392.
Re: [PolySix] Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Malte Rogacki
6.) My board has Korg factory midi.... Has anyone replaced the KLM 367 with Factory MIDI? I m not 100% sure but I believe the original KLM367 had to be
Re: [PolySix] Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Jed Jorgensen
Everything is up-to-date on my site. Best of luck in your build! Jed ... [Non-text portions of this message have been removed]
Re: [PolySix] Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Andrew Jury
Mike, 1. As far as I am aware this is all up to date. I have a personal list I work from and this has served me for over 10 boards. If you¹d rather work from
Just checking in regarding the KLM 367 Replacement Board
2010-10-14 by Mike
So, I got a KLM 367 in the mail last week and am planning on populating it sometime this week. (Thanks Jed!) If it s not too much trouble, I ve got a few
Re: My restoration project
2010-10-10 by mondokraftwerk@virgilio.it
http://www.flickr.com/photos/13769550@N07/5069692236/ http://www.flickr.com/photos/13769550@N07/5069707124/
RE: [PolySix] My restoration project
2010-10-10 by Paul T
Yes nice! I m going to do this to my 2x Polysix when I get chance. Did you make them yourself? To: PolySix@yahoogroups.com From: mondokraftwerk@virgilio.it
Re: [PolySix] Re: Blue LEDs
2010-10-09 by Andrew Jury
Quite so! Blue is a much higher frequency than red in the colour spectrum and some of these devices can be quite aggressive on the eye, so always best to
Re: Blue LEDs
2010-10-08 by ML
... and it may be a good idea to buy the LEDs and throw them on a breadboard first. This way you can experiment and find the right resistor value. Their
Re: [PolySix] Blue LEDs
2010-10-08 by Andrew Jury
Hi Ian, It most certainly is and this is something I have had to do on a few occasions. The series feed resistor also needs changing depending on the spec of
Blue LEDs
2010-10-08 by silvercreekvalley
As part of my polysix refit I d like to replace the red led s with blue ones. Is this likely to be a problem - I m assuming the red leds are fairly standard
new guy. need OS download
2010-10-04 by Bill Tomlinson
hi. I m a retired old fart in Kentucky. Buy broken synths and repair them for sale. Looking an another PolySix with a missing programmer board. I have a friend
Re: [PolySix] Re: More KLM-367 PCBs in stock
2010-09-30 by Jed Jorgensen
Hi Mike, There s a big Buy Now button on the front page. Click on that and you can specify the quantity and where you want them shipped.
Re: More KLM-367 PCBs in stock
2010-09-30 by Mike
I want to buy two but it says that group buy is expired when I go to your site and follow the links. -Mike
Re: (new) KLM-367 Calibration
2010-09-21 by Daniel A
Just checking in see if any further steps to trouble shoot this one.. - Daniel
Re: [PolySix] Re: Adjustment Procedure problems
2010-09-20 by Andrew Jury
Yes, sorry, typing in a rush again. IC3 on the 367 I meant, not the 371... ... [Non-text portions of this message have been removed]
Re: Adjustment Procedure problems
2010-09-20 by aniello iaccarino
Hi Andy well, in normal mode I can select every button on 371 and every relative led lights up. The example you did was clear, when I press Bank C and
Re: [PolySix] Re: Adjustment Procedure problems
2010-09-20 by Andrew Jury
Hi Aniello, Well it sounds like you have been diligent in your repairs. I just has to go back and remind myself what your problems were (it¹s been a while
Re: Adjustment Procedure problems
2010-09-19 by aniello iaccarino
Hi Andy, thanks for your reply. Sorry I wrote 366 instead of 367 :) I checked all the PIO on the CN10 but this time I pressed the relatives buttons during the
Re: [PolySix] Re: Adjustment Procedure problems
2010-09-19 by Andrew Jury
Hi Aniello, I¹d doubt very much if it is the 366 at fault. The data and PIO bus have transitioning logic states on them so it is not really a good idea doing
Re: Adjustment Procedure problems
2010-09-18 by aniello iaccarino
Ok the problem should not be on the KLM 371 I checked all Pxx and Dxx and all works good. So the problem should be in the KLM 366?
RE: [PolySix] Re: Adjustment Procedure problems
2010-09-18 by backshall1 (dsl)
TE is Tape Enable. It should be +5v when not active. If you turn Tape Enable on, it should go to near 0v. Don B. _____ From: PolySix@yahoogroups.com
Re: KLM Clone: plastic film vs. polyster caps
2010-09-16 by ML
Yes - sorry - I took that for granted. 0.047uF. They mark it 47 3K on the film and poly caps. Good to hear I can get away with that. I ll try it out. I m not
Re: [PolySix] KLM Clone: plastic film vs. polyster caps
2010-09-16 by Jed Jorgensen
There you go. Learned something new. Thanks, Andy. ... [Non-text portions of this message have been removed]
Re: [PolySix] KLM Clone: plastic film vs. polyster caps
2010-09-16 by Andrew Jury
Ah yes! These are the ones used mostly for keeping transients away from the DC outputs of the mux. Tolerance is not critical here so the types you mention
Re: [PolySix] KLM Clone: plastic film vs. polyster caps
2010-09-16 by Jed Jorgensen
For the plastic film caps, I would think you ll be fine with polyester,polystyrene, polypropylene, PTFE, metalized, etc. As for 473K ...I assume you mean 473
KLM Clone: plastic film vs. polyster caps
2010-09-16 by ML
Ah shoot. One of my local electronic shops was out of all but one of the plastic capacitors needed for the KLM clone. They had 473K polyester capacitors
Re: (new) KLM-367 Calibration
2010-09-14 by Daniel A
Andy, Let me correct something about pin 2 of T3. In relooking at these values this morning VR5 does change the voltage the top end is what I stated with a
Re: (new) KLM-367 Calibration
2010-09-14 by Daniel A
Andy, ... Correct. ... Good ... Well it goes down to -13.95v but only is hitting 0.35 to 0.4v on the top end. ... Yes when you rotate MG Freq but no change
Re: [PolySix] Re: (new) KLM-367 Calibration
2010-09-13 by Andrew Jury
Hi Daniel, Just wanted to clarify something. Looking at the transistor, sloped face towards you, is the reverse of what you see in the schematic. So the
Re: (new) KLM-367 Calibration
2010-09-13 by Daniel A
Andy, Here are the readings for T3 With Freq set to 0 the left Base (pin1) reads at approx +4.95v With Freq set to 10 the left Base (pin1) reads at approx
Re: [PolySix] Re: (new) KLM-367 Calibration
2010-09-13 by Andrew Jury
OK then, so what is the voltage reading on the left-hand base of T3 with the MG frequency pot at 0 and at 10? Also what is the emitter voltage at with VR5
Re: (new) KLM-367 Calibration
2010-09-12 by Daniel A
Andy, yes I am getting the voltage shift from what looks like -4.95 to +4.95. So that is correct it appears. My 4.80v estimation was when I had the setting at
Re: [PolySix] Re: (new) KLM-367 Calibration
2010-09-11 by Andrew Jury
Hi Daniel, Well, I am about 6000 miles away in the Suffolk market town of Sudbury, United Kingdom! However, you are very close to Jed and I am sure he will
Re: (new) KLM-367 Calibration
2010-09-11 by Daniel A
Andy, I am in Portland OR. If you saw the last post which I deleted please ignore had bad readings. In fact the very first post you responded to had bad
Re: [PolySix] Re: More KLM-367 PCBs in stock
2010-09-08 by Jed Jorgensen
Hi Scott, These are exactly the same as the first run. I did not correct the artwork for a couple reasons: 1. Keeping costs down. There is a fair amount of
Re: More KLM-367 PCBs in stock
2010-09-08 by Scott
... Hi Jed... Do these have any corrected artwork? I remember one trace missing when the PCB was first tried
More KLM-367 PCBs in stock
2010-09-07 by hyperjed
Hi folks, I ve got a new batch of KLM-367 replacement PCBs in stock for anyone who might need one or who missed out on the first group buy. The price is
Re: [PolySix] Re: Problem with new KLM-367A
2010-09-07 by Jed Jorgensen
I just have to give credit to Andy and Malte for figuring this error out. I am very impressed. You guys are true pros. I have updated my web page and the parts
Re: [PolySix] Re: (new) KLM-367 Calibration
2010-09-06 by Andrew Jury
Hi Daniel, Sorry for the delay, have been working on some pressing stuff. Can you let me know how you have been getting on. If you are still stuck at this