Disklavier

Hi Robert,

Is it possible to obtain this CD as a member of the general public? Have 
you any information on how much it costs?

Many thanks!

James


Robert Welcyng wrote:
>
> The loud pedal adjustment procedure involves more than what your tech
> apparently did. Yamaha's maintenance procedures have been detailed on a
> 2002 CD-ROM titled, "Hybrid Piano Service CD." I don't know that this
> CD has been updated for the Mark IV, but Yamaha has surely documented
> the procedure.
>
> To troubleshoot your problem, the complete performance of this procedure
> is a must.
>
> In general, the adjustment includes the following steps in this order:
>
> * Adjust the solenoid gap.
>
> * Adjust lost motion. (It sounds as though your tech did that.)
>
> * Adjust the pedal stop.
>
> * Put the DKV in the Maintenance Mode and perform the pedal calibration
> and adjustment of the half-pedal point.
>
> You might consider contacting Yamaha for help in locating a qualified
> Yamaha-trained technician in your area.
>
> On the Mark II, and surely on the Mark IV, there is a demonstration
> piece in ROM, Schumann's Traumerei, beautifully pedaled, which should
> play perfectly when the adjustment has been properly completed. A wise
> technician would demonstrate his work to you by playing this piece to
> assure you that he did properly adjust the pedal.
>
> Wise, because many MIDI performances do play on a perfectly adjusted
> Disklavier with a terrible thump. Some files, even older PianoSoft
> disks that are still offered today, have on/off sustain pedaling, rather
> than continuous pedaling, that thump when the damper assembly drops from
> the full-open to the released position. Thumping can also occur when the
> pianist records and drops the dampers fully and abruptly.
>
> In other words, the problem you are experiencing could be caused by the
> file(s) you are playing.
>
> As you probably know, the MIDI values of a released and fully open pedal
> are 0 and 127. I have had some success in mitigating the thump of
> problematic files by limiting that range to about 25 to 90. On my Mark
> II instrument, a value of 25 is still fully damped and at 90, completely
> undamped. Of course, that means that the pedal solenoid is energized
> throughout the playing piece--a condition that might occur when a
> skilled artist records. I have had no problems with the solenoid
> overheating.
>
> jaallc wrote:
>
> >Anyone out there have a Mark IV? My right pedal seems very
> >noisy to me, I can hear it thumping throughout the song (each
> >time it is pressed). It also makes a noticeable noise, beyond
> >a thumb, almost as if a quiet clapping noise. My dealer has
> >already been out and made some adjustments, but it's not really
> >any better. I'm wondering if this is normal or if these pedals
> >are supposed to be perfectly quiet?
> >
> >Incidentally, the tech who came out complained that Yamaha gives
> >them no training, that they have to call Yamaha for anything but
> >the most basic problems. Didn't exactly inspire confidence. The
> >only adjustments he made to my pedal were to two washers on the
> >top and bottom of the pole itself, surely there is more that can
> >be done than this?
> >
> >Regards,
> >Jason
>
>
>