2014-08-13 by c.freiburghaus@yahoo.com
Aha! Nice to hear from you. I never sent from yahoo but from christian.freiburghaus(at)postmail.ch I just will try again soon. Regards Christian
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2014-08-08 by The Old Crow
Hi, you email probably getting spam-trapped, a common issue I have with yahoo emails. --Crow
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2014-08-08 by Jed Jorgensen
I can t speak for Crow - though he has popped up here in the somewhat recent past - but I have boards available if you are looking.
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2014-08-08 by c.freiburghaus@yahoo.com
Hello everyone tried to contact Old Crow and asked for KLM 367 replacement boards. Unfortunately he does not answer my mails. Does anybody know something about
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2014-08-03 by moogchild@yahoo.es
Hi, I need your help, guys. Afeter troubleshooting KLM367 with slight battery leakage, replacing the battery, the IC at the left and the electrolitic capacitor
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2014-07-27 by jamieantonelli78@yahoo.com
Hey guys been having issues with voice #6. I spent last few hours adjusting all voices to the same level and retuned all of them, even adjusted the Reso on a
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2014-07-19 by <backshall1@bellsouth.net>
The side with two equal length legs is the resistor side. The cathode side of the other two pins should be marked with a dot or a line. I don’t have one here
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2014-07-18 by pushwithlegs@gmail.com
Hi all, Looking at the photo posted by brukernavn32, I am still unsure where the four pins on the VTL5C9 are meant to align exactly. I’m guessing NC denotes
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2014-07-14 by polys6x@yahoo.com
No, I don t own an oscilloscope yet (I wouldn t really say I m building synths,- just trying to restore this one). I will be getting an oscilloscope soon
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2014-07-14 by Dennis Matana
well i assume you have an oscilloscoop if your buil;ding synth stuff On Monday, July 14, 2014 4:33
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2014-07-14 by polys6x@yahoo.com
Ah, that s the MN3004 chips. Thanks for the response. Is there a straightforward way to check the signals on these individually? I m by no means an expert.
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2014-07-14 by Dennis Matana
Hi, Sounds like one of the BBD chips at the end of its life....check the BBD signals to determine which one.
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2014-07-14 by polys6x@yahoo.com
First of all, hello and thank you for having me as a member of this group, which I ve been enjoying endlessly over the last while. I recently started restoring
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2014-07-12 by PolySix@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the PolySix group. File : /Mods &
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2014-07-12 by pac8s@virginia.edu
teebeekid and I resolved this on Gearslutz (I was having the same issue). Turns out that the synths were transposed down an octave (transpose is a feature of
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2014-07-11 by <backshall1@bellsouth.net>
Oh, and that picture you are looking at is a PC Board layout diagram, not a schematic diagram. If you look at the real schematic, you can see that CN03 pin 7
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2014-07-11 by atoneontail@gmail.com
Hey folks, I see that this topic was created about 7 years ago, but was there any solution? I am too finding that my voices are at Eb at C5 in 4 and its damn
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2014-07-11 by <backshall1@bellsouth.net>
That point on the left is not an endpoint. It is a “via” that goes through the board to the other side, goes up and to the left a bit, and comes back
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2014-07-10 by photoshootjapan@yahoo.com
Hi everyone, I m currently repairing my second Korg Polysix and have discovered some possible trace damage under C40. Those who change the battery for a coin
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2014-07-06 by Bob Grieb
Hi, I think its safe to say that most PolySix problems are Related to battery damage on the Klm367 board. I would focus on the signals from that bd used to
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2014-07-04 by smarteeism@yahoo.co.uk
Hi guys, Before I sell my beloved old Polysix to some div on eBay or Gumtree or something like that, I thought I d post this here. It s had the batt
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2014-07-04 by Terje Winther
Very good - and well done! Terje ... Terje Winther terje.winther@wintherstormer.no http://wintherstormer.no/
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2014-07-04 by teebeekid303@yahoo.com
My P6 has been working fine until tonight. Whenever I put the Polysix to octave 16 and play the last octave on the keyboard there is no sound, just a little
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2014-07-02 by eibbs@hotmail.com
Thanks, I was able to repair the switch with super glue and have moved it to control Tape Enable which is usually disabled
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2014-06-24 by Phil65
Hi, It has been some time since my last email and I would like to update on my P6 issue with no sound except in EG square position. Eventually Bob were
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2014-06-24 by Terje Winther
Hi, Sorry for the late reply. Did you get any response? I might have one, but it is stored away. If you alredy had an answer, that is ok. Terje Winther ...
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2014-06-22 by eibbs@hotmail.com
Looking for a spare Alps 2 Way switch as used by the Tape Enable and Arp Latch to restore my Polysix.. anyone have a spare from a dead unit?
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2014-06-07 by Bob Grieb
Hi, I uploaded some scope photos for comparison when you get things set up to look at your waveforms. Let me know if there are other signals I should
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2014-06-07 by PolySix@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the PolySix group. File : /Mods &
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2014-06-07 by dtonthept@yahoo.com
Okay cool thanks guys, I ve got the replacement chip you recommended on the way, plus a decent oscilloscope to try to nail that EG gremlin. Might be a few days
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2014-06-06 by Bob Grieb
74C175 should also be OK. Maybe try flexing the board near where you were probing to see if that s what made it work. Maybe you have a flaky connection
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2014-06-06 by eidorian@aladan.net
... Definitely not - different pinout, different number of flip-flops. It s a 14175 you want - it s a bit hard to see on the schematics. This is a reasonably
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2014-06-06 by dtonthept@yahoo.com
Hi Bob, Okay so we ve had a bit of a poke around... Thanks a million for the pointers, VERY useful. The dead voice does indeed stem from a lack of voltage from
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2014-06-05 by dtonthept@yahoo.com
Hi Bob, Thanks so much for the reply, hugely appreciated. I ve got a friend popping by soon who is much cleverer than I, I ll let you know what we discover.
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2014-06-04 by Bob Grieb
I am starting to think that trying to troubleshoot over email without a scope is not such a good idea. If having LED 3 on affects C LED, this implies an
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2014-06-04 by Phil65
Bonjour les amis Polysix, 1) Concerning the problem with led C+3, I have rechecked continuity between IC without success (cold and warm check). Precisely I
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2014-06-04 by Bob Grieb
The voices are enabled by the six gate signals, which come from IC4 and 5 on the KLM366 board. The Polysix doesn t check for bad voices or anything that I am
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2014-06-04 by dtonthept@yahoo.com
Hi folks, I m wondering if anyone might be able to chip in with regards to the below coupla problems I m still having on the Polysix I picked up recently (and
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2014-06-04 by Bob Grieb
Phil, You said you have 13.56 volts on IC10-1. This is very strange. Please check to see if pins 1 and 2 of this chip are connected as they
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2014-06-04 by Bob Grieb
Phil, C and 3 LED s are both fed from data bit D2. Please check resistance of this connection between KLM-367 and KLM-371 board.
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2014-06-03 by Phil65
Hi My KLM 367 repairing may not be good enough as I realize on Sunday that after 5-10 minutes of warming I have additional leds along with A+1 (led 3 then C+3
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2014-06-03 by Hans
Hi From my own experience a scope based around a USB sound card they’re only useful up to approx. 5200Hz. There are ways around this by implementing a simple
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2014-06-03 by Bob Grieb
Hi Phil, If you plan to use that USB DAC as an oscilloscope, I don t think it will work very well. It s more of a data sampler, than a scope, it
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2014-05-30 by Phil65
Thanks Bob and Johannes I am off for the week end with family, but managed to take only the KLM 367A board and VM (shh!, don t tell my wife she doesn t
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2014-05-29 by Bob Grieb
Sorry for the multiple emails. In DAC calibration mode, you should be able to turn the cutoff and see the lit LED move from 5-8 as you turn it. Likewise,
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2014-05-29 by Bob Grieb
Phil, I was not clear before. When in the DAC calibration mode, if you turn the cutoff, does one of the lit LED s move? (Not VR6 and VR7) If so,
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2014-05-29 by Johannes Hausensteiner
Hi, Most probably IC1 on KLM-370 (the 4051 analog mux) is dead. I had this before; the leaked battery acid crawls along the thick black ground wire up to
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2014-05-29 by Bob Grieb
Hi, So it seems that all of those connections are OK. Please check the IC23 connections next. P23 from IC22 to IC23-12,13,8, and the other
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2014-05-29 by Phil65
Looking at the klm367 schematic, I understand now your point with the connections between pins and signal P20, P21 and P22 but I had some diffuculty to cross
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2014-05-29 by Bob Grieb
These should be connected: IC18-9 IC19-9 and IC22-23 this is signal P22 IC18-10 IC19-10 and IC22-22 this is signal P21 IC18-11 IC19-11 and IC22-21
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