Hi there, I bought a new CDP-S150 about 3 months ago, had no problems with it until my M-Audio SP-2 Sustain Pedal suddenly stopped working.
When playing the piano standalone, the notes came off as if the pedal was continuously pressed. I discarded the problem as my pedal malfunctioning, so I took it to some repair shop. Haven't got it back yet. But then, when I tried playing the piano without the sustain pedal connected, I noticed the same problem.
I mostly use my S150 as a MIDI controller, with an audio out from my computer connected to the piano's audio in, so I can take advantage of the nice speakers it has.
I noticed the pedal down MIDI signal on my DAW "flickering", as in, going high and low seemingly at random, I tried connecting the piano to a different USB port, disconnecting the audio in, trying different cabling configs to no avail.
Note that before this piano I had a Novation Launchkey 61 MK2 and never had any problems with it on this computer, so I would discard the computer being the problem.
I hope its not some board issue, that would be pretty weird anyways, since its a new keyboard, and I clean it almost daily (mostly just light dust).
Any ideas? Anyways, thanks in advance!