Discussion about the Korg PolySix synthesizer group photo

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Discussion about the Korg PolySix synthesizer

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Re: [PolySix] Re: Key assign mode issue

2015-05-06 by Bob Grieb

That's great news.   Since the anti-log circuit is shared by all sixvoices, if just one osc is sharp, then you would just tune that one.As has been mentioned before here, best to leave the anti-log pots 
alone unless you have a good reason to touch them.   Probably you 
should check/adjust the tuning on all six voices just for fun.

I guess it's better not to adjust the power supply voltages unlessyou are prepared to go through the full calibration procedure.

Bob

      From: "mpe1969@tpg.com.au [PolySix]" <PolySix@yahoogroups.com>
 To: PolySix@yahoogroups.com 
 Sent: Wednesday, May 6, 2015 8:23 AM
 Subject: Re: [PolySix] Re: Key assign mode issue
   
    Good news. I replaced ic9 (added socket) and I have some action!I am now getting sounds! The oscilloscope showed more positive voltages on ic9 leg1 and when ! hold down a cluster of notes I get an extra line (lower voltage for low note). I also replaced two switches: arpeggiator and hold. (hold was on its way out, arpeggiator didn't work)Arpeggiator is now working however not the up and down octave switches (will clean the switch tomorrow night). Other issues:Hold still does not turn off the previous note.My sixth oscillator is also about a semi-tone sharp.But it's great to hear some sounds! Filters and ADSR working Will take some photos tomorrow night.Kudos to Bob! Thanks again.   #yiv9957096564 #yiv9957096564 -- #yiv9957096564ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv9957096564 #yiv9957096564ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv9957096564 #yiv9957096564ygrp-mkp #yiv9957096564hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#yiv9957096564 #yiv9957096564ygrp-mkp #yiv9957096564ads {margin-bottom:10px;}#yiv9957096564 #yiv9957096564ygrp-mkp .yiv9957096564ad {padding:0 0;}#yiv9957096564 #yiv9957096564ygrp-mkp .yiv9957096564ad p {margin:0;}#yiv9957096564 #yiv9957096564ygrp-mkp .yiv9957096564ad a {color:#0000ff;text-decoration:none;}#yiv9957096564 #yiv9957096564ygrp-sponsor #yiv9957096564ygrp-lc {font-family:Arial;}#yiv9957096564 #yiv9957096564ygrp-sponsor #yiv9957096564ygrp-lc #yiv9957096564hd {margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;}#yiv9957096564 #yiv9957096564ygrp-sponsor #yiv9957096564ygrp-lc .yiv9957096564ad {margin-bottom:10px;padding:0 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