Sylvia Else wrote:
The sustaining pedal on my Yamaha electronic piano is become rather
flaky. Sometimes it doesn't sustain when pressed.
So I disassembled the piano enough to get at the mechanism, (removed 12
screws, and 6 bolts), and was rather surprised to see that the business
end consists of a potentiometre.
I'm not really surprised that it's failing. In fact, the surprise is
that it's lasted so long. When a piano is played, the sustaining pedal
is in constant use. I can't help feeling potentiometres were never
designed with that kind of use in mind.
The design seems rather primitive.
Sylvia.
At least Yamaha are willing to supply just the pot. I was expecting them
to want to supply a complete replacement pedal mechanism, at some
exorbitant price.
Spares guy described it as a "volume" pot for the sustaining pedal
None in stock here, though - order from Japan - takes 4 weeks.
So much for supporting their product.
Sylvia.