[sdiy] OT: JX-3P Keyboard Contacts

[Oakley Sound]

MC> I did the replacing/cleaning several times, with no avail.

Martin I think you have been very unlucky. I have only replaced one set
of pads (just seven notes) on my D-50, and they and the rest of the
keyboard are still going strong. This is my main machine, and I hammer
it. [very loud playing action - some sort of latent aggression no doubt
:-)]

And I have replaced many other contacts in my job as a Roland tech, and
have yet to redo any of them. Never done a D70 though... but I don't
think its that different from the rest of them. What doesn't work though
for me, is cleaning the rubber contacts. With air, water, IPA (the
alcohol not the beer) or whatever, cleaning them is a short term fix
only. I do usually clean the contacts on the PCB though.

But you are right, they do suck in the dust over time, but I have found
that the reason most actually fail appears to be worn out contacts as
opposed to being simply dirty.

As for getting at the pads Gavin. You need to take out the keys ABOVE,
not below, the dodgy note... and a few around the pad set that need
replacing/cleaning. Most pad sets are in sevens and fives I think. So
you'll have to take out at least five or seven notes to be able to
remove the old pad set.

And don't forget you'll need to remove the silly bit of sticky plastic
under the keyboard assembly that stops the keys from moving forward...
and then put it back once the job is complete.

Regards,

Tony Allgood                       Penrith, Cumbria, England

Oakley Sound Systems                   www.oakleysound.co.uk
Modular Synthesisers      www.oakleysound.co.uk/projects.htm