Sound coming from the plate

[Richard Brekne]

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What do we have here... a buzz, a thunk, a boing, or a
Whhapp ?... perhaps some other sound ? Could you be a bit
more descriptive ?

RicB

>      ----- Original Message -----
>      From: SUSAN P SWEARINGEN
>      To: pianotech@ptg.org
>      Sent: Saturday, September 07, 2002 3:57 PM
>      Subject: Sound coming from the plate
>       Hi Everyone. Has anyone ever encountered this
>      before?  I have a client with an M1F from
>      Yamaha.  It's only a few years old but already,
>      Yamaha has discontinued the line.  It's a 43 "
>      upright and it has one of those crazy lids that
>      lift up like a grand piano. Anyway, I noticed
>      that after I strike a key anywhere in the
>      treble, I get a metalic sound that is not in
>      tune with the note struck.  It was obvious to me
>      that the sound I was hearing was the iron plate
>      vibrating for a short time after the note was
>      struck.  However, as I mentioned, it was a
>      terrible out-of-tune noise.  It's not extremely
>      obvious but it is loud enough that it drives the
>      owner crazy.  The plate screws are all tight, as
>      is every other screw I could find. I wonder if
>      this was why this series was discontinued.
>      Anyone ever run into a similar problem? Corte
>      Swearingen
>




--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


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