I just had the exact same problem on a similar Kawaii. It is possibly a damper wire touching a string to create a buzz that does not last long. Mine was exactly where yours was at the break of C5. If they play moderately loud no buzz but just let them get the strings vibrating and at the moment of contact the buzz comes back. Adjust damper wires for no contact. Steven Hopp Midland, TX From: tunerboy3 at comcast.net To: pianotech at ptg.org Date: Fri, 12 Feb 2010 22:21:07 -0500 Subject: Re: [pianotech] More Info: The buzz that comes and goes... It could be so many things. I've had buzzes from loose or stripped lid hinge screws on these grand's along with loose pedal lyre braces and buzzing locks. It could just as easily be a paper clip laying on the sounding board too for that matters among plenty of other possibilities. From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of pianofritz50 at aol.com Sent: Friday, February 12, 2010 10:09 PM To: pianotech at ptg.org Subject: [pianotech] More Info: The buzz that comes and goes... MORE INFO: The piano is a Kawai GM-10K (5' 0"). And yes, I told the owner to not touch a thing. Supposedly w/ no outside changes it buzzed last night, but nothing when the same student played it this morning (and the rest of today). Some of the student's music is Scott Joplin. Thanks for your help, Bill From: pianofritz50 at aol.com To: pianotech at ptg.org Subject: [pianotech] The buzz that comes and goes... Date: Fri, 12 Feb 2010 20:14:14 -0500 I have a customer who's 1+ year old Baby Grand has a buzz.. particularly at 3-4 keys around G5. But when I was sent out on a warranty call the buzz was gone. I went thru a Pitch Raise and Tuning (since it needed it), and "nothing". It sounded lovely. A couple of weeks later the buzz is back, supposedly along w/ a pedal noise. Confirming the next day's appointment last night the noise was there. I called this morning before I left, and the noise is gone again (so I didn't go). The customer is over an hour's drive into rural America, so they agreed to wait til the noise returns. They have an upcoming "recording", when of course they don't want to hear the buzz, so they are nervous. Any ideas?? Thanks, Bill Fritz, St Louis _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/201469227/direct/01/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100213/e07bf158/attachment.htm>
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