I don't know if you still need it, but are you connecting via USB or external MIDI IO? If via USB, press [menu], scroll down to [USB] and make sure that is set to 'MIDI', not 'Storage'.
Midi- this is so I can use my laptop rig with any
I found a system page that had several midi settings but no midi tx on/off.
AFAIK, you can not disable note on/off tx. You can only select the default MIDI channel on which to transmit in 'patch'mode. Press [menu], scroll to [MIDI] and adjust "Kbd patch RX/TX channel" to the channel you want to transmit on.
I'm quite positive midi notes were not being sent while other data was. I had a monitor window open on my laptop screen. I could see patch change data when I scrolled through patches. I could see a regular blinking light on my MOTU Fastlane which was undoubtedly active sense bytes.
Thanks for the suggestion but as you say, the parameter you describe is only for setting the channel – not to turn midi tx/rx on or off. My only guess is that the board was in Performance mode and there is a setting somewhere that disables midi for individual zones. I'm still looking for it – I suspect it's kind of "hidden" in a another zone parameter. Unfortunately I don't have access to a Fantom.
I may have the option of bringing my own keyboard for future gigs but that opens another can of worms which is the wear & tear of the road and the TSA screwing it up. Right now I think Guru's suggestion to just reset the whole thing makes the most sense.