More thoughts on Sustain Pedal not working So now I'm going to build a small electronics circuit to reverse the pedal functionality (). So I did one final thing and measured the voltage the keyboard puts out when the pedal is open. So my conclusion is that - in this situation - things can't work the right way. There are no related settings in the keyboard settings menu and having the pedal plugged in also doesn't seem to change anything. There is no documentation anywhere however that the LK-280 would support this. I conclude that my only chance to fix the issue is to have the LK-280 recognize a shorted jack connection as a released pedal and an opened / not connected jack as a depressed pedal.
So whatever I do with holding or releasing the pedal while turning on the keyboard can't have any influence at all on how the pedal works. Also there is no intelligent logic / Integrated Circuit / Chip in the pedal, just two wires and a simple switch. There is no "reverse switch" on my pedal. It turns out that there is a simple switch in the pedal: pressing the pedal opens the switch (no connection), releasing the pedal closes the switch (jack is connected / shorted). So I went a bit further debugging the issue. I followed the suggested procedures, turning the keyboard on with the pedal plugged in, tried all kinds of combinations (holding the pedal down while powering on the keyboard, holding the pedal down while powering of the keyboard, pulling the power chord while the pedal is held down, all these in reverse, etc.) nothing helped. I have the same problem mentioned here, using a Casio LK-280 keyboard in combination with a Yamaha pedal.
Midi sustain pedal inverted how to#
Since the vast majority of hardware synths use either the normally closed or the normally open method with an option to reverse the default, pedal manufacturers discovered they had fewer returns by including a switch to alter the behavior of the pedal for those who did not know how to alter the behavior of their synth.Casio LK-280 with Yamaha Pedal - sustain reversed Somewhere in those parameters is a setting that upon power up initializes the hold pedal input to expect either a normally open or a normally closed sustain pedal. Today most hardware keyboards and sound modules intended for stage use have a menu system to alter various parameters. The sustain pedals with a switch on them simply change the wire harness from a normally open to a normally closed switch. No one, as far as I know, used a polarity system that reversed the connection of tip and sleeve.
Midi sustain pedal inverted full#
Sustain pedals for electronic keyboards have used basically five different approaches.ġ) A momentary connection that triggers a toggle of the sustain on or off - this was a poor design and not used any more by any manufacturer as far as I know.Ģ) An open / closed connection that is always open unless depressed.ģ) An open / closed connection that is always closed unless depressed.Ĥ) A variable MIDI message that sends a MIDI CC 64 value between 0 and 127 where 0 to 64 is off, 64 to 96 that on some synths emulates a partially depressed sustain pedal, and 97 to 127 for full on sustain.ĥ) a proprietary system requiring the manufacturers pedal.