Question about Yamaha NP-30 Portable Keyboard
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Posted on Jan 02, 2017
What I figured out is that when i turn on the keyboard, if i hold down the pedal by accident, it will work in reverse. I dont know if this is what you mean. If it is, just dont touch the pedal when you turn it on. If it isn't, try to return the pedal. I dropped one, it had this problem, and they gave me a new one. Your cord for it might have been bent (?). Also, turn the keyboard on with the pedal already plugged in. It's not made to be plugged in while it's on. Hope this helps. - Matthew
Posted on May 15, 2009
The answer is NO... Roland uses the opposite sense switches on foot pedals... They use NIRMALLY CLOSED and your Yamaha is a NORMALLY OPEN switch.
SOMETIMES you can open these pedals and find that the pedal has the opposite sense switch available and you only have to unsolder and move one wire to make it a NORMALLY CLOSED pedal.
Posted on Dec 24, 2010
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It sounds like the inputs from the pedal switches are "floating", that is, not pulled up or down and they are drifting across the logic threshold. If I could find a schematic I could direct you right to the problem. For now, check the voltage across the switch contacts with a high impedance meter. Also check the resistance to ground of the common of the contacts. Without a schematic I am afraid to have you try things lest I direct you to do something that would cause damage.
Posted on Jun 08, 2011
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SOURCE: when I plug the fc-5
Sounds like a loose wire to me (because the problem isn't consistent) the most likely suspect is the jack plug. Unscrew the body of the plug and check that the two wires are firmly soldered to the terminals inside.
If they're OK you can pop the cover off the footswitch and check that end. As far as I recall that end of the cable goes straight to a PCB (printed circuit board) so be very careful if you need to solder anything. If the solder around the wire connection is cracked, that's a dry joint and can be fixed with a small blob of solder carefully applied.
If all the cable connections are fine there's a problem with the PCB or the micro-switch mounted on it.
Posted on Jun 20, 2011
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