The standard international pitch to tune a piano is A440 hertz. By default,
the tone generator is also set to A440 (000 in the Mtune window). Humidity
(as in the moisture content of the soundboard) affects the pitch of the
piano. The ideal relative humidity for a piano is 42%RH. If the humidity
around the piano is higher than this, there is a good chance the piano is
sharp - happens all the time during the summer. When the humidity is lower
than 42%RH, the piano starts to go flat - happens all the time during the
heating season. This is why it is recommended to have your piano tuned at
6-month intervals.
The tone generator can be tuned my using M tune from the Function menu.
This way the emsemble sounds can be matched to the pitch of the piano. Press
the Function key, then use the -> to select Mtune, then press Enter. Make
sure the number you see is 000. Use the + or - buttons to change the value.
I will make a separate post explaining why tuning theory does not compute
exactly with the ensemble sounds, and how piano tuners determine where to
set the tuning of your piano.
As far as the excessive pedal noise is concerned, there might be a simple
explanation. If the excessive noise is consistent on EVERY file you play -
call the technician. If only an occasional file has this problem, it is
probably in the file data and not the pedal adjustment. The MXIIXG has
incremental pedaling which means not only does it do on/off but lots of
nuances in between. IF the file was originally recorded on a piano that
only had on/off pedaling, it can be noisy. This includes some of the older
PianoSoft music files.
The next post will deal with the piano tuner!
Carol Beigel
>From: yg ao <ygaousa@...>
>Reply-To: disklavier@yahoogroups.com
>To: disklavier@yahoogroups.com
>Subject: Re: [disklavier] Yamaha Technicians
>Date: Wed, 11 Sep 2002 07:23:36 -0700 (PDT)
>
>
>The Disklavier is a self-calibration system (MX1Z w/ Mark II XG). My
>understanding is that if piano is in tune, the piano and Disklavier\ufffds
>ensemble tone sound in harmony. Since the digital tone generator doesn\ufffdt
>easily go out of tune so it can be used as reference to calibrate the
>piano. However, the piano tuners appointed by Yamaha dealer do not believe
>the self-calibration system as Yamaha has claimed. So he tune through his
>own way. My Disklavier was in perfect harmony when delivered (piano and
>tone generator) only after the 1st free tuning that the piano is now
>slightly deviate from the tone generator (even untrained ears can tell).
>My dilemma is what to do when the 2nd free tune comes.
>
>
>
>There is also a loud noise coming from the Sustain and Soft Pedals when
>certain sound is played like piano sonata no.17 \ufffdtempest.\ufffd I was told this
>is intrinsic with Yamaha Disklavier MX1Z and no way to fix it.
>
>
>
>Any advice is deeply appreciated.
>
>
>
> Carol Beigel wrote:
>Yamaha dealers know who the local Disklavier technicians are. The
>Disklavier is mostly serviced by piano technicians; sometimes the organ
>technician if the problem is in the amplifier. Such is the nature of a
>hybrid instrument.
>
>Most Disklavier technicians feel like the Maytag repair man. There are
>very
>few things that ever go wrong with them. Most of the time, the piano is
>adjusted - not the Disklavier!
>
>Because the piano is a mechanical device, and subject to humidity changes
>in
>the wood parts, the geometry of the working parts can change slightly.
>Felt
>bushings compress and screws can become loose. This is why it is necessary
>from time to time to calibrate the "computer" to the condition of the
>piano.
> However, the tolerances built into the Disklavier are so reasonable,
>that
>the piano has to be really out of kilter for the DKV to show error
>messages.
>
>Any good piano technician can service a piano equipped with a Disklavier.
>The piano part is serviced like any other acoustic piano - except that one
>wire harness gets disconnected on DKV models with the Record feature.
>Play-0nly models seldom need special servicing.
>
>The most common adjustment is the damper pedal - the far right one. Piano
>technicians usually check this adjustment each time an instrument is tuned
>on pianos that don't have Disklaviers. Because the DKV has an in-line
>pedal
>solenoid, special care needs to be taken to assure that the normal pedal
>adjustment leaves this solenoid in the proper operating position. If there
>is a problem with the pedal solenoid, it will often heat up, but turn
>itself
>off before damage is done. There will also be error messages indicating
>that the pedal needs adjusting.
>
>Piano technicians seldom deliver and set up pianos - piano movers do this!
>Most dealers have a Disklavier technician thoroughly check over the units
>before delivery so it should only take the delivery people a few minutes to
>set it up. Most of the Disklavier technicians I know are first rate piano
>technicians as well as concert quality tuners, and don't work cheap! I am
>sure your local Yamaha dealer knows of one!
>
>Carol Beigel
>
>
> >From: rjtolsma@...
> >Reply-To: disklavier@yahoogroups.com
> >To: disklavier@...
> >Subject: [disklavier] Yamaha Technicians
> >Date: Mon, 2 Sep 2002 21:40:03 EDT
> >
> >All this recent talk about getting rid of noises, etc., has gotten me
> >thinking about something. When I took delivery on my Disklavier about 18
> >months ago, the person who delivered it set it up and had it working in
> >about
> >2 minutes. Later that summer, I received my first tuning at no charge,
>but
> >I
> >don't think the piano tuner was a Yamaha trained technician. He didn't
>seem
> >able to answer any questions I had about the unit and didn't appear to be
> >checking anything on the disklavier unit at all. All he did was tune the
> >piano. So I'm thinking that I've NEVER had a Yamaha Disklavier trained
> >technician look at this piano and callibrate it properly.
> >
> >There are a couple odds and ends I'd like to have checked out (such as
>the
> >clunking pedal noises). How important is it to have someone do initial
> >callibrations on the disklavier unit? How can I identify a good
>technician
> >in
> >my area? (Philadelphia) Do these technicians tune as well, or do they
>just
> >zero in on the Disklavier unit? I could use a little advice here. Thanks.
> >
> >Rich Tolsma
>
>
>
>
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