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Yamaha DX & TX Forum • Re: DX11: Specific Keys are louder than the rest - issue

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After a long wait, I have finally started to look at the DX11 again... I measured every contact point between the various ends of what would be N5 & N15 Lines which are common to the specific Keys I was having a problem with... did not find any anomalies in the impedance readings... compared to for example N0/N10, which are known good...

I took the Contacts PCB off to see if there were any dirty contacts, but found nothing... I did clean them anyway.

Now I have a slightly bigger problem...

When I took the PCB off I failed to notice how the White Strip (which has 2 black Strips to bridge the contacts) was installed, while trying to put everything back together, I noticed that white strip is slightly longer than the rail it goes into (~4mm / 5/32"), and held is in place by a spacer and the PCB itself. :confusion-confused:
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Does anyone have any experience putting the strip back on?

I have tried several different ways:
  • Squeezing the strip into the rail ends
  • Pinching the strip on one end while butting the other end all the way (tried both sides)
  • Pinching the strip at both ends

None of them made it work properly... I always get different Keys working and some not... 30 fail out of the 61 most of the tries I have done... installing the PCB requires 16 Screws to be in place... so each try takes a lot of time...
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On the Bright side... When the C#'s and G's do work, the velocity is now working correctly... so... Yay? :dance:

Statistics: Posted by AgentSlick — Sun Feb 16, 2025 3:48 am



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