<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body bgcolor=white lang=EN-US link=blue vlink=blue> <div class=Section1>     <blockquote style='border:none;border-left:solid black = 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'= > <div style='font-color:black'> From:</span= > <a href="mailto:kennyfin@jetstream.net" = title="kennyfin@jetstream.net">KENNETH FINLAYSON</a> </div> <div> To:<= /font> <a href="mailto:pianotech@ptg.org" = title="pianotech@ptg.org">pianotech@ptg.org</a> </div> <div> Sent:</span= > Thursday, April 10, 2003 3:00 PM </div> <div> Subject:</s= pan> Bergman Grand </div> <div>   </div> <div> Dear = List! </div> <div>   </div> <div> I have a Bergman Grand, one = year old, with a ringing in the treble section. The customer is very unhappy; and the dealer feels it isn't the piano, and won't take it back. I = tried tapping the bridge pins, muting the duplex scale, voicing the hammers. = Still the ringing. It was not obvious until she pointed it out. Now she = is focussing on it, and it is driving her crazy. What else can be done? Has anyone else had a similar problem? I am the third technician to look at it; all screws have been tightened and = retightened. Could it be her hardwood floors? I don't think so. Could it be the piano = surrounded by windows? I don't think that's it. It sounds like an internal piano = problem. I phoned Phil Glen today, service manager for Young Chang. He suggested checking the hammer line. But it's more of an sypathetic after ring, = vibrating from the smaller strings that aren't dampened. </div> <div> Thanks List,</fo= nt> </div> <div> Kenny Finlayson, = RPT    &nbsp= ;        &nbsp= ;      Ken,   &nbsp= ;      You are describing a situation I had with a Story and Clark “Chinese = “grand.   &nbsp= ;      I mean exactly! I tried everything you did (plus CA on the bridge pins) = and came to the same conclusion. This piano had sympathetic harmonic ringing from = the three open strings above the dampers and below the last plate strut. I blocked = off those three strings and the symptom went away.   &nbsp= ;      I was contemplating ways of adding three more dampers (not an easy task) = when the manufacturers rep agreed to replace the piano with a like model. =   &nbsp= ;      Piano #2 did not demonstrate the symptom as much and the customer accepted the switch.   &nbsp= ;      Your problem may differ somewhat and you seem to be in the middle. My advice = is to the best you can and as stated earlier today in a different = thread---“Don’t make this your problem”   &nbsp= ;      Balancing customer service, dealer loyalty, and self preservation---That’s = what we do I guess. Good luck.   &nbsp= ;      Tom Driscoll RPT  </fo= nt>   </= p> </div> </blockquote> </div> </body> </html>