Vangelis,
I agree that the Yamaha FC7 Vol. Pedal is by far the nicest and
most accurate pedal there is out there. I have one on my Korg
Pa4X and one on my Ketron SD 7, both working fine. I have had
one of these FC7 on a Yamaha 2, 4 and 5 that represents about
six or better years and it still works as new. Sorry to hear
you are having troubles with it. Lloyd