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 Forum index » DIY Hardware and Software » Circuit Bending
Finding pitch on keyboard
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Alcastrane



Joined: May 06, 2011
Posts: 12
Location: Sweden
PostPosted: Mon Jun 13, 2011 1:33 am    Post subject: Finding pitch on keyboard Reply with quote  Mark this post and the followings unread
Hey guys,
This circuitboard has like a hundred resistors and ive tried finding a pitchbend for hours without success...

http://www.alcastrane.com/Pics/gj.jpg

Any suggestions?
Thanks,
Jonas
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electri-fire



Joined: Jul 26, 2006
Posts: 534
Location: breda nl
Audio files: 4
G2 patch files: 4
PostPosted: Thu Jun 16, 2011 8:25 am    Post subject: Finding pitch on keyboard Reply with quote  Mark this post and the followings unread
This keyboard has a clock with a crystal , it's the orange-yellow part X1. It can be removed and an external clock oscillator fed into one of the two legs. If the two brown (10 and 22) capacitors on the right of x1 are attached to x1 you may have to remove those too.

Your clock oscillator will likely need to be above 1 MHz.
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Lorenzo



Joined: Nov 09, 2008
Posts: 338
Location: Trieste - Italyjstan
PostPosted: Sun Jun 19, 2011 6:06 am    Post subject: Reply with quote  Mark this post and the followings unread
I have a similar "problem" with a drum-machine... how could I identify the "clock"?
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marcelomelloramos



Joined: Jun 14, 2011
Posts: 1
Location: Rio de Janeiro Brasil
PostPosted: Sat Jul 30, 2011 2:26 pm    Post subject: Reply with quote  Mark this post and the followings unread
I have Posted Image, might have been reduced in size. Click Image to view fullscreen.a Posted Image, might have been reduced in size. Click Image to view fullscreen.similarPosted Image, might have been reduced in size. Click Image to view fullscreen. "problem" too. Posted Image, might have been reduced in size. Click Image to view fullscreen.Any suggestions?
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