You didn't mention that you ran the system through the calibration mode. If you haven't then this needs to be done, particularly after making regulation adjustments. Without a control box in front of me I can't recall the specific sequence, (although I do this periodically), but with the unit off you hold the "Stop" button and I think the + button at the same time while turning it on, (are those the correct ones folks, I can't remember?). Anyway a menu will pop up and you will go through and select what I think is called "keyboard set up" (?). Once started the system will go through a comprehensive self calibration by playing a series of diminished arpeggios at various volumes. It checks itself by verifying the intensity of the solenoids firing vs. the record key sensors, thus it knows if it is properly playing each note at the correct volume during play back. If there are deviations it will adjust itself. This is most impressive on a grand because it runs through an additional check with the shift pedal on. Beware, it gets very LOUD toward the end of it's cycle! Always advisable to do this BEFORE you tune it! Rob Goodale, RPT Las Vegas, NV Vanderhoofven wrote: > Dear Friends, > > I recently did a complete service call on a new upright Yamaha equipped > with a Disklavier system. Because the Disklavier is an > acoustic/electronic/MIDI hybrid instrument, it has specialized service > requirements in addition to the standard service requirements of every > acoustic piano. > > Here is a listing of the work that I did during this service call: > 1. Record and Playback Test > 2. Check Error History > 3. Adjust Pedal Solenoids and pedals > 4. Remove action, tighten all action screws > 5. Check Keys for friction/sluggishness in key bushings and at the balance > rail > 6. Regulate Capstans > 7. Regulate Let-off > 8. Check other regulation points > 9. Tune at A-440 > 10. Calibrate the Pedals > 11. Record and Playback test > 12. Enjoy listening to the beautiful music while chatting with customer.
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