The technician did a calibration when he tuned my DC2A, in fact did the procedure twice, and consulted with Mark W of Yamaha on the phone while here. Is is possible that the "calibration" which he did was not the proper medicine for this symptom, or maybe the procedure was not done correctly or something? The process he went through a couple times had the piano playing from ppp to FFF all up and down the keyboard, but as it did the softer notes, it did miss many, as I recall. He told me that the procedure was to define the point at thich the hammer moved and not necessarily to play each note. (or something like this).
Anyway, the problem remains. Any suggestions?
Thanks
Dave in Florida.