I have seen this issue when playing a chord from bottom up F G# A# and C when these notes are played as a chord a loud B tone sounds (instead of the C on top)…Happens in all octaves. It also happens on other notes in chords. It is almost like the chord\note sequence creates a short… I have updated firmware and also powered on with top key pressed to reset the keyboard. I see a replacement board on Syntaur but not sure if that is the fix for this…There are lots of similar posts w Reface series showing this problem. This problem does happen when controlling a module w this keyboard…any ideas outside of calling Yamaha? Thanks!
Sounds like an issue with the MK board. Probably corrosion. Order the board and rubbers
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Thanks sounds like a plan…
I have replaced the key trigger board, same issue as before same notes retrigger in different octaves
Rubber key buttons look fine…may be somewhere in the main board
Like an overload of a buffer that handles midi…also sends the same trigger loud note out always a B note that sounds while playing the on a 5 note f minor scale (keeping the prior notes held down like a chord
Also happens while playing (keeping previous notes held) C C# D# E F
Once I get to the F note a loud F# sounds out
I can say for sure but sounds like the triggered sound is at 127 or full velocity…
Just keeping this updated in case someone else runs into this issue…