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#2054361 - 03/26/13 02:23 AM Kawai P360 quiet notes, occasional really loud note
James Cameron Offline
Junior Member

Registered: 03/24/13
Posts: 2
Loc: australia
G'day,

My first post. I'm a software engineer, vocalist, and occasional pianist. I've been asked to look at an old Kawai P360 Digital Piano (S/N 9070319) that had problems after being moved:
  • certain keys deliver quiet notes, especially when struck again, and this shows up in the MIDI OUT events as velocity 4, regardless of how hard the keys are struck,
  • in the middle of performance, a single unexpected and very loud note is heard, usually dissonant, but often in the set of notes that had been played,
  • the main volume, transpose, and tone selection buttons stop responding, with a flashing LED above the tone button, although this can be prevented by lifting certain keys, and this lifting shows up in the MIDI events as a note off and system exclusive message. The manual says the controls hold any changes until all keys are released.
The piano and I are in a remote area, and the owner knows of no technicians capable of servicing it. Transporting it to a city technician would be expensive and difficult.

I have opened the piano and see two screws for each key; one that sets the height at rest, and one that sets the distance before contact.

But just changing all these screws seems too easy. How should these problems to be rectified? What is a procedure to set these screws?

(There is some sign of water damage; a migration of the key numbering ink, but it is not consistent left to right, as if the piano was caught in light rain during an outdoor performance, not an immersion.)

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#2054363 - 03/26/13 02:32 AM Re: Kawai P360 quiet notes, occasional really loud note [Re: James Cameron]
Kawai James Online   content
Yikes! 10000 Post Club Member

Registered: 09/06/07
Posts: 10557
Loc: Hamamatsu, Japan
James, given that this instrument is approximately 25 years old, it's possible that it may simply be irreparable.

However, I would be happy to provide a service manual PDF for this instrument, if desired.

Kind regards,
James
x
_________________________
Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 fan & occasional rare groove player.

"Richard, none of us could forget you have a CLP-990." - EssBrace, 2014

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#2054373 - 03/26/13 03:06 AM Re: Kawai P360 quiet notes, occasional really loud note [Re: James Cameron]
James Cameron Offline
Junior Member

Registered: 03/24/13
Posts: 2
Loc: australia
Thanks, yes please. My e-mail is quozl at laptop dot org.

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#2054376 - 03/26/13 03:26 AM Re: Kawai P360 quiet notes, occasional really loud note [Re: James Cameron]
Kawai James Online   content
Yikes! 10000 Post Club Member

Registered: 09/06/07
Posts: 10557
Loc: Hamamatsu, Japan
It's probably too large to email - I'll send you a PM with the link.

Cheers,
James
x
_________________________
Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 fan & occasional rare groove player.

"Richard, none of us could forget you have a CLP-990." - EssBrace, 2014

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