Doug,
I am now convinced that there is a bug.
I have tried two different pedals and both behave the same way.
My Kn7000 hasn't acted up for quite some time. I played a gig for 2 1/2 hours on Sunday without problems and then this morning, whammo, the volume suddenly dropped.
The following may be clue:
When I first turned on the KB , the pedal was at a low volume position but the keyboard was very loud, so I used the manual slider to lower the volume.
After a few minutes (note that I had not touched the pedal at all), right in the middle of a song (played from the keyboard - not sequenced), the volume dropped to what I would consider to be the correct level for the combination of pedal position and slider position that had been set up.
In other words, it seemed that the KB started up as though the pedal was at full on when in reality it was not. The only thing that I did after turning on the KB was to press the "Custom Panel" button, which I always do before I start.
Very strange, wouldn't you say?
Ah, sweet mystery of life -----.
Walt