rodneon Posted June 1, 2005 Report Share Posted June 1, 2005 I recently bought a Yamaha FC7 pedal to use with my Roland A-33, which will eventually be part of a MIDIbox setup -- so this isn't completely off-topic ;)The problem is, the resistance values don't match. According to a technician at Sweetwater:The (Roland) pedal diagram shows an 8Kohm pedal pot between the tip and ring, and a 50Kohm trim pot in-line with the shield. The Yamaha FC7 manual states that the resistance between tip and ring is 50Kohm, the same between tip and shield. However, there doesn't seem to be a "trim pot in-line with the shield", which probably doesn't matter much here.I wouldn't give the feel of that pedal for anything, especially for those crappy, cheap-feeling Roland pedals. Is there any way to "convert" the tip-ring resistance range of the Yamaha pedal from 50Kohm to 8Kohm? Quote Link to comment Share on other sites More sharing options...
rodneon Posted June 1, 2005 Author Report Share Posted June 1, 2005 I'm fairly new to electronics, so bear with me. Can I apply the parallel resistance formula to solve this problem? I mean:Re = (R1 * R2) / (R1 + R2)8 = (50 * x) / (50 + x)x = 9.524 KohmsWhich would mean a 10 Kohm resistor in parallel with the tip and ring would solve the problem. Right? Wrong? Any input would be much appreciated. Quote Link to comment Share on other sites More sharing options...
rodneon Posted June 7, 2005 Author Report Share Posted June 7, 2005 The fix is actually easier than I thought. I figured it out, after much fiddling... all you have to do is swap the wires between tip and ring. That's it. So I answered my own question, but the info is here forever, if anyone ever runs into the same problem. Quote Link to comment Share on other sites More sharing options...
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