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 Forum index » DIY Hardware and Software » Circuit Bending
broken omnicord
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static-oscillator



Joined: Oct 08, 2007
Posts: 5
Location: NJ

PostPosted: Fri May 30, 2008 9:45 am    Post subject: broken omnicord Reply with quote  Mark this post and the followings unread

so one of my friends gave me his om-36 (omnicord series 2) to bend. well i found alot of extra noises and other cool bends on the thing. but while searching for more bends i must have shorted something out because, there are no more drums. so i was wondering if anyone just happens to a schematic i could look at.
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germaniac



Joined: Aug 04, 2006
Posts: 200
Location: California
Audio files: 7

PostPosted: Tue Jun 03, 2008 11:18 am    Post subject: Reply with quote  Mark this post and the followings unread

Hey Static-O,

I've got an OM-84, but not sure if there are any similarities. I can tell you that mine uses a 4011 for a couple of the drum oscillators and a xstr noise source. All of that responds to patterns generated by pins 30-34 of an M50740 chip: BD, SD, CL, CY, and HH, respectively. I'f I were having trouble with the rhythm section, I'd fire the drummer--no wait--I'd check if those pins were still active. If so, then it's likely the 4011 went dead. Another thing to check out would be interconnections between PCBs. Mine has a few iffy ribbon cable connectors, and there were a few cracked solder joints where some of the buttons connected to the PCB. Hope that helps.

Regards,
Joe
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isic



Joined: May 15, 2011
Posts: 1
Location: edmonton, ab

PostPosted: Sun May 15, 2011 6:48 pm    Post subject: omnicord o27
Subject description: manuals, schematics, lesson guides
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i am looking for the manuals, schematics, lesson guides for the omnicord om27. pdf would rock. please message or email if you can help. aminimalvirus@gmail.com. thanks again.
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