Sustain Pedal not working in Silent Mode
31 views
Skip to first unread message
Richard Freeman
Jan 19, 2020, 6:25:30 PM1/19/20
to Disklavier Support Group
I have a DC2S MkII XG (5'8" upgraded to DKC-850).
When playing the piano in silent mode (using headphones), I notice that the sustain pedal is having no effect. I suspect it is a faulty sensor, but wanted to share what led up to this and get your opinion.
A few months ago, I took the plunge and bought a DKC-850. In retrospect, I should have done the upgrade years ago - but that's another story. Right before the holiday's, I had our local technician adjust the pedals, as the sustain pedal was making excessive thumping noise when in playback mode - something I never noticed with the original control unit. The technician determined the Lyre assembly was loose. He removed the Lyre, took it to their shop where he adjusted a shim, re-installed it then adjusted the dampers. Long story short, it took two more visits for the pedal acton to be returned to normal. For the last visit, the tech called Yamaha support who told him it was required to have the original DKC500R controller to be re-connected and run through the calibration mode. Fortunately, this did the trick and the 3 pedals worked for proper playback of recorded disklavier media. Except for manual play via silent mode. The silent mode issue stumped the tech and he said he would research this more and revert.
And running through more tests this morning, discovered sostenuto pedal is not working again (for manual play) Arrgghh - another tech visit now required.
Back to the silent mode issue, I suspected the sensor could be the culprit. So, I recorded my play including liberal testing of all 3 pedals. When playing back what I recorded, I noticed only the soft pedal was playing back (solenoid pushing the pedal up and down). Could the sensor be bad or misaligned for the sustain pedal? Or, could this be a configuration issue in setup?
Any guidance from the group is appreciated!
Richard Freeman
Tac Pro
Jan 20, 2020, 4:42:32 AM1/20/20
to Disklavier Support Group
Grand piano damper and soft pedal adjustment are in the following order.
Sensor gain adjustment.L=1.5-2.0mm LED(red on) Sensing test(Pkctl test mode value L=040)
Adjustment of solenoid maximum stroke.L=15.0+-0.5mm
Adjustment of acoustic dumper pedal (gap of lifting rail=2.0mm
Adjustment of acoustic pedal (max and min point)
Adjustment of solenoid final point. 1.5+-0.5mm
Sensing test. (Pkctl test mode 100<L<040)
After that, measurement and setting are performed in the following maintenance mode.
Pedal measurement, half point setting (damper pedal only 1.5sec) .
Sostenuto adjusts by performing a sensor test from the test mode.
The same adjustment can be made with the DKC850, but the method of starting each item and the method of writing data are different. DKC500R is easier.
I guess it's better to do the keyboard measurement too.
Contact your Yamaha technician for details on adjustments, test, and maintenance mode.
raymond dupuy
Sep 13, 2025, 3:04:41 PM (8 days ago) Sep 13
to disklavier-s...@googlegroups.com
Hello,
Sorry to pertub you.
My disklavier is always out since 2021, and I have not found anyone to repair my mx 100b.
I always search information of thee problem.
Last week, I bought an emulator to replace the floppy, but nothing to do. The piano is quiet.
I’ ve seen a post of you that explain problem with capacities.
I’m looking so the electric plan of this model.
Excuse my English,I do the best…not the better.
I’m in France near LE MANS
Can you help me, please
Many thanks
Best regards
Raymond Dupuy
--
You received this message because you are subscribed to the Google Groups "Disklavier Support Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to disklavier-support...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/disklavier-support-group/b92cc647-068a-425a-acbe-c33cecc24df0%40googlegroups.com.
Alain Pierard
Sep 14, 2025, 11:59:00 AM (7 days ago) Sep 14
to disklavier-s...@googlegroups.com
Bonjour
Pouvez vous expliquer le problème. J’ai un MPX-1
Suis à nice
Crdlmt
Alain P.
You received this message because you are subscribed to the Google Groups "Disklavier Support Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to disklavier-support...@googlegroups.com.
raymond dupuy
Sep 14, 2025, 12:08:29 PM (7 days ago) Sep 14
to disklavier-s...@googlegroups.com
Bonsoir,
Merci de votre soutien
J’ai donc un mx100b depuis 30 ans, il y a 5 ans, il m’a lâché. N’ayant pu trouver un technicien Yamaha. J’ai à mon grand regret abandonné l’affaire.
Récemment, un ami disklavieriste, m’a dit que cela pouvait provenir du lecteur de disquettes. Aussi ai je commandé un emulateur usb pour changer le lecteur. hélas, rien de positif.
Et je suis toujours au même point.
Le piano s’allume, lelecteur affiche 00 et les led vertes,mais aucune touche à coté du lecteur n’est opérationnelle.
Voilà ce que je peux vous en dire
Merci de votre aide
Cdlt
Rd
Alain Pierard
Sep 14, 2025, 2:38:56 PM (7 days ago) Sep 14
to disklavier-s...@googlegroups.com
Bjr
Je regarde ça demain . Il y a les grands spécialistes dans les forums .. ça devrait être possible de trouver la solution . Est-ce que le résultat après l’installation de l’émulateur est le même que avant ? Cette installation n’a rien changé à l’opération
ou la non opération du piano ?
Steve Nelson
Sep 14, 2025, 2:39:42 PM (7 days ago) Sep 14
to disklavier-s...@googlegroups.com
Test
raymond dupuy
Sep 14, 2025, 3:09:48 PM (7 days ago) Sep 14
to disklavier-s...@googlegroups.com
Bonsoir,
Par avance, merci beaucoup.
L’installation de l’emulateur n’a malheureusement rien changé.
Bonne soirée
Cdlt
Reply all
Reply to author
Forward
0 new messages