Pedal pedal regulation and piano calibration are very important thing.
also regular reguration.
Pedal adjustment is the most important point for all type of Disklavier.
please enter maintenance mode and check error log.
Push power switch with Rec and Select.(E3 dkc800)
1:piano infomation
set
↓
1-7 log view
set
1-7-1
all errors
1-7-2
all warnings