Yamaha PSR-18 Keys Not Sounding

by Richard
(Gloucestershire, UK)

Some keys on my PSR-18 do not sound. I can get a sound from them when I press hard or press at about the middle of the key. I suspect that there is a problem with the contacts. I have tried an air spray but that does not make a difference.

If I were to take the keyboard apart would I be able to access the contacts to clean them or would they require additional work e.g. new coating or replacement. Has anyone had experience of this model and problem, and can give my some tips?

Many thanks,


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Nov 21, 2010
Thanks - Anonymous
by: Anonymous

More food for thought - thanks. I'm still waiting for that winter evening.

Nov 18, 2010
KEYBOARD, Yamaha PSR-18, Keys Not Sounding
by: Anonymous

same problem,
took all the case screws out hoovered inside
unscrewed the key board from the chasis but
couldn't expose electrical contacts of keys
there needs to be a bigger gap between key and felt to allow further depression of the key.
I tightened screws in that area of the case helped.
one alternative would be to use a dremel fine electric grinder and grind down the under surface of the key where it contacts the felt.

Sep 18, 2010
by: Richard

Hi Dick
Thank you for your prompt reply. It helps me in that it gives me some idea what to expect should I attempt a repair. This could be a project for those long winter evenings.

Sep 17, 2010
contact pads??
by: Anonymous

Hi Richard,

Sounds very much like a defect rubber underlay-pad.
If you are handy and skilled you can do it yourself but one of the pads -each octave has one- needs to be replaced, the problem is to find out the bandit one. Second, you have to get a new one and where?
(Yamaha in Milton Keynes if I spell it correct)
My advice is, if you do it yourself, change the suspected pad with the highest one (that is generally the least used)and see if that solves the problem. If not seek a prof repair-person. Also clean carefully with cleaning alcohol the circuit-strips above, sometimes carbon-dust from the contacts build up and are giving the same problem.


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