<HTML>In a message dated 4/10/03 5:01:17 PM Central Daylight= Time, kennyfin@jetstream.net writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT= : 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I have a Bergman Grand, one yea= r old, with a ringing in the treble section. The customer is very unhappy; a= nd the dealer feels it isn't the piano, and won't take it back. I tried tapp= ing 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 h= ad a similar problem? I am the third technician to look at it; all screws ha= ve 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, serv= ice 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 a= ren't dampened. Thanks List,<FONT= COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="S= ANSSERIF" FACE="Arial" LANG="0"> Kenny Finlayson, RPT&nbs= p;  </BLOCKQUOTE> Kenny The problem might be not enough weight on the damper lever to pull the dampe= r felt down on the string to get it to stop the vibrations. You can check th= is by lightly putting your finger on the damper head, and see if it solves t= he problem. If this is indeed the problem, then the solution is to add weight to the dam= per lever. This, I believe, should be considered a warrantee situation. You = need to convince not only the dealer, but also Young Chang, that they need t= o take care of the problem. If they are washing their hands on it, advice the customer that she has a le= gal battle on her hands, and "walk away." Only get involved is she is willin= g to pay you for professional services. Do not attempt to make any repairs, = without authorization from Young Chang. Wim</HTML>