Disklavier

Hi folks,
  I have a 5.5 year old Mark IV in which the I get no sound from the bottom two octaves when in the silent mode.  The first key that plays is the third C# from the bottom.  I get the same result from the headphones and speakers.
  Any ideas on what's gone awry and what I'm looking at in repair costs?  Also,is it possible to get a nicer sounding grand piano in the silent mode?  I've never been happy with the electronic grand piano sound.
  
Thanks in advance,
Steve

Sent from my iPad

My best guess is that either:

- The sensing system (hammer sensors and/or key sensors) need to be calibrated.

Or,

- The hammer sensor rail position is set mechanically too high in the bass end of the piano  or the key sensor rail is set too low (depending on whether your piano is key sensor only or with key/hammer sensor rails).

Bill Brandom

Sent from my iPhone.

On Jul 4, 2013, at 6:17 AM, Horatio Kemeny <hkemeny@...> wrote:

Just a wild guess here... but if it's working in acoustic mode but not quiet mode, I wonder if it's got something to do with the split point between L and R... because it's possible to set up half the piano to be on one MIDI channel and the other half on a different channel... and you can slide the half-way point to wherever you like. In this case, if the split point is set to C3 and everything to the left of it is set to a bad MIDI channel (or set to a silent tone), then the result would be what you're experiencing.


Worth looking into before you start taking things apart. ;)

On that note (haha!!) with respect to the tone that you don't like, there are a few different ones to choose from. Have you cycled through all of them to see if there's one that's better?

.....HK

On 2013-07-04, at 2:21 AM, Stephen Alston <sma@nc.rr.com> wrote:

>  
> Hi folks,
> I have a 5.5 year old Mark IV in which the I get no sound from the bottom two octaves when in the silent mode. The first key that plays is the third C# from the bottom. I get the same result from the headphones and speakers.
> Any ideas on what's gone awry and what I'm looking at in repair costs? Also,is it possible to get a nicer sounding grand piano in the silent mode? I've never been happy with the electronic grand piano sound.
> 
> Thanks in advance,
> Steve
> 
> Sent from my iPad
>