Disklavier

Kent and All,

I purchased a Yamaha DC3IIXG disklavier grand piano in December 1999,
and I occasionally experienced one or more sticking keys.  This never
occurred when I played the piano, but several pieces of Yamaha Pianosoft
software would leave one or more keys stuck when these pieces were
played.  The problems was repeatable, i.e. I could always expect to find
the same keys stuck when I played these pieces time after time.
Fortunately, the dealer from whom I bought my disklavier has a very good
service person.  About a month ago he came out, removed the action from
my grand piano, and very very lightly sanded (with #400 sand paper or
finer) each of the solenoids.  I actually helped the technician in the
very very slight sanding of these solenoids.  Before sanding, you could
feel what I can only describe as a texture on the surface of the
solenoids, i.e. a slight roughness.  After the very slightest of sanding
followed by carefully wiping off the surface of the solenoid with a soft
tissue, the solenoids felt like silk to the touch.  This treatment,
light sanding and wiping the surface clean, was applied to each of the
solenoids in my grand piano.  I am happy to report that since performing
this procedure, not one single key has stuck on my grand piano.

Tom