Comments on: How to test an Oberheim Matrix 1000′s voice chips http://enigmafon.com/2009/12/02/how-to-test-an-oberheim-matrix-1000s-voice-chips/ Tue, 10 Jan 2012 02:33:10 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: acemonvw http://enigmafon.com/2009/12/02/how-to-test-an-oberheim-matrix-1000s-voice-chips/comment-page-1/#comment-1657 acemonvw Thu, 05 May 2011 00:45:41 +0000 http://enigmafon.com/?p=1021#comment-1657 Does anyone know, based on looking at this diagram (link below), where the capacitors are, relative to each voice-chip would need to be replaced? http://wolzow.mindworks.ee/analog/m1k.htm Thanks! Does anyone know, based on looking at this diagram (link below), where the capacitors are, relative to each voice-chip would need to be replaced?

http://wolzow.mindworks.ee/analog/m1k.htm

Thanks!

]]> By: acemonvw http://enigmafon.com/2009/12/02/how-to-test-an-oberheim-matrix-1000s-voice-chips/comment-page-1/#comment-1656 acemonvw Thu, 05 May 2011 00:19:33 +0000 http://enigmafon.com/?p=1021#comment-1656 What I really want to know is how to get in touch with this Will Puckett guy who mentions the secondary issue, because that's what I have and I'd love to figure out how to fix it!!! What I really want to know is how to get in touch with this Will Puckett guy who mentions the secondary issue, because that’s what I have and I’d love to figure out how to fix it!!!

]]> By: admin http://enigmafon.com/2009/12/02/how-to-test-an-oberheim-matrix-1000s-voice-chips/comment-page-1/#comment-544 admin Thu, 14 Oct 2010 14:27:31 +0000 http://enigmafon.com/?p=1021#comment-544 Hi Will I've been having intermittent problems with my M-1000, i know it is not the voice chips, because they work when i swap them around. I will probably do a cap job on the unit. Thanks for the tip! Hi Will
I’ve been having intermittent problems with my M-1000, i know it is not the voice chips, because they work when i swap them around. I will probably do a cap job on the unit.

Thanks for the tip!

]]> By: Will Puckett http://enigmafon.com/2009/12/02/how-to-test-an-oberheim-matrix-1000s-voice-chips/comment-page-1/#comment-537 Will Puckett Tue, 12 Oct 2010 05:04:40 +0000 http://enigmafon.com/?p=1021#comment-537 A secondary issue is with the filters - Cutoff and tuning. This problem is not IC related but is due to the support capacitors leaking or no longer operating at spec. Of the two Matrix1000's in my studio, one of them had a defective filter circuit that caused A)voice level to be louder at lower frequencies, quieter at hiher frequencies, and B) color, cutoff and resonance differences at all settings. These caps are common poly .0068/50v type available from Mouser or Digikey. A secondary issue is with the filters – Cutoff and tuning. This problem is not IC related but is due to the support capacitors leaking or no longer operating at spec. Of the two Matrix1000′s in my studio, one of them had a defective filter circuit that caused A)voice level to be louder at lower frequencies, quieter at hiher frequencies, and B) color, cutoff and resonance differences at all settings. These caps are common poly .0068/50v type available from Mouser or Digikey.

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