Disklavier

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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