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infraxpert
Joined: Feb 05, 2014 Posts: 9 Location: Denmark
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Posted: Sun Jul 06, 2014 4:22 am Post subject:
Connectors on XR2206 PCB Subject description: What hides behind the connectorcode on the XR2206 PCB from MagicSmoke |
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Does anybody know how to translate the different CN-codes into pots and plugs on the Magic Smoke PCB for the TH-102/XR2206 VCO?
If anybody have a connection manual it would be a great help.
Thanks |
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Danno Gee Ray
Joined: Sep 25, 2005 Posts: 1351 Location: Telford, PA USA
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infraxpert
Joined: Feb 05, 2014 Posts: 9 Location: Denmark
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Posted: Sun Jul 06, 2014 3:04 pm Post subject:
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I already have the book but it does not show anything about the PCB from magic smoke. I also have the book about Thomas Henry VCOs and that one is even more confusing since it does not have one final layout for the VCO.
I just wonder course magic smoke refer to this forum for further documentation. |
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Rivelen
Joined: Mar 02, 2007 Posts: 30 Location: France
Audio files: 3
G2 patch files: 12
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Posted: Sun Jul 06, 2014 10:39 pm Post subject:
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so you did not received the wiring guide from Magic Smoke ?
-> ok, sent to you by pm. |
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rjd2
Joined: Sep 02, 2007 Posts: 236 Location: philly
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Posted: Sun Jul 27, 2014 10:10 am Post subject:
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Good friend! Would you mind DMing me the connection notes please? I too cannot translate the cn codes on the pcb... Thanks! |
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AlasdairMoons
Joined: Dec 03, 2011 Posts: 105 Location: East-Belgium
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elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
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Posted: Sun Jul 27, 2014 8:14 pm Post subject:
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That is correct. Here are some notes I have, not sure their exact provenance, but I believe they are from Tim, and they apply here:
Quote: |
If you're looking for a little more info on the board image I posted, here are the connector functions:
Left Edge:
CN7 Linear CV In jack
CN8 Linear CV attenuator
CN1 Coarse Tune
CN2 Fine Tune
CN101 FM 2 In jack
CN102 FM 2 attenuator
Top Edge:
CN105 Square Suboctave out
CN110 Pulse Suboctave out
CN108 PWM In attenuator
CN107 PWM In jack
CN106 PWM Initial
CN109 Pulse Out
CN104 Rampoid Out
CN15 Tri - Ramp / Sine Out
CN16 Square Out
Bottom Edge:
CN4 1V/Octave CV in (switching jack)
CN3 Keyboard CV in (from internal bus)
CN6 FM 1 In attenuator
CN5 FM 1 In jack
CN9 Skew Initial
CN10 Skew CN In jack
CN11 Skew attenuator
CN103 Hi / Low cap switch
CN12 Sync In
Middle:
CN13 S1a (Tri - Ramp / Sine Select switch)
CN14 S1b (Tri - Ramp / Sine Select switch)
Right Edge:
CN17 DC Power In (4 pin .156" Blacet style)
CN18 & CN19 DC Power In (6 pin .100")
Whew! Lotsa connectors. But we do have
* Tri -Ramp / Sine Out
* Pulse Out (derived from Tri - Ramp)
* Suboctave (derived from Pulse)
* Square Out
* Suboctave (derived from Square)
* Rampoid Out
* Two Expo FM Inputs with attenuators
* Linear CV Input with attenuator
* 1V/Octave CV Input
* Tri - Ramp Skew CV Input with attenuator
* PWM Input with attenuator
* Sync Input
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AlasdairMoons
Joined: Dec 03, 2011 Posts: 105 Location: East-Belgium
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elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
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Posted: Mon Jul 28, 2014 7:47 pm Post subject:
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ungleichklang wrote: |
but how or where do I connect CN3?? Or do I not need it if I have no internal keyboard connected?? |
That is exactly right. I am traveling and away from my el Cerrito, so I can't say specifically, but I do recall there was more than one connector that I opted not to use, and the internal keyboard one was definitely one of those.
As to the cause of noise, unfortunately I'm not sure what to suggest there. When I am back home this weekend, if you're still having issues I can measure voltages on mine and give you some ideas. |
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