My MegaDrum just keeps firing footnotes, it goes completely crazy!
When I close the hi hat pedal it stops the notes. When I let it go it starts again.
Sometimes it stops when I unplug and replug the pedal cable.
I have no idea how to fix this problem...
Things that I have done:
Update the firmware to the newest version.
Place the 74HC4851 in an other socket, they moved from one socket to an other. (no new parts)