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piano sounds missing middle octave

Posted: 06 Aug 2024, 18:00
by mud bay steve
I recently opened up my nord 6d 73 to fix keyboard contacts. When I got it put back together, the middle octave of piano sounds does not work. Everything else seems fine. Organ and synth are ok. Any ideas?

thanks

Re: piano sounds missing middle octave

Posted: 06 Aug 2024, 18:09
by Mr_-G-
Perhaps the rubber contacts are not positioned correctly?

Re: piano sounds missing middle octave

Posted: 06 Aug 2024, 20:06
by FZiegler
+1

Every key has 2 contacts: upper and lower. Organ doesn't need velocity, so one contact is enough; piano needs both contacts to calculate velocity through the time lap between both. So you might have set the contact rubber or connected the different contact rubbers in a wrong way.

Re: piano sounds missing middle octave

Posted: 07 Aug 2024, 16:14
by pterm
I recommend double checking the insertion of the cables from the keybed to the motherboard.

Re: piano sounds missing middle octave

Posted: 19 Sep 2024, 01:47
by mud bay steve
pterm wrote: 07 Aug 2024, 16:14 I recommend double checking the insertion of the cables from the keybed to the motherboard.
Good advice. I found that I needed to offset one of the ribbon connectors to the other side (one ribbon end is shorter).

Things work fine except I get an error on boot up: - keyboard error = storage failure - press exit

I press exit and all is well. As far as I can tell everything is working as it should.