Pitch Denon MC-6000

The configuration for the MC6000 MIDI is pretty good, but has a detail not less, at least in my case.
The Pitch parameter (Pitchall) is completely uncalibrated, at first I thought jumping erratically when sliding the potentiometer, but more slowly passing I noticed that makes full travel from -20%, 0, +20%, in countless occasions (more than 50) making it impossible to accurately control the variation (%).
I should modify the parameter looks like this:
# e0 ff 0.000000 PITCHALL
# e2 ff 0.000000 PITCHALL
If anyone knows how to do it, since the time I try to modify it, or does not respond or the pitch makes no improvement.
Tnks!
The Pitch parameter (Pitchall) is completely uncalibrated, at first I thought jumping erratically when sliding the potentiometer, but more slowly passing I noticed that makes full travel from -20%, 0, +20%, in countless occasions (more than 50) making it impossible to accurately control the variation (%).
I should modify the parameter looks like this:
# e0 ff 0.000000 PITCHALL
# e2 ff 0.000000 PITCHALL
If anyone knows how to do it, since the time I try to modify it, or does not respond or the pitch makes no improvement.
Tnks!