It turned out to be a pretty obvious solution. The real clue was the backcheck hung on the sostenuto bracket. Once the action was removed, you could see there were no adjusting screws in the keyframe stop (a.k.a. dag). The keyframe had worked its way back, causing the clacking of the sharps on the fallboard. With screws in there now, and the keyframe in correct position, everything is fine. Duh, I should have seen that right away. Curse my non-mechanical, artsy-fartsy brain. <G> It's learning, though. JF On 6/6/07, Phil Bondi <phil at philbondi.com> wrote: > John, you mentioned everything except key height to fix the > fall board problem..although I have never heard of seasonal > changes in key height. > > Personally, I would check key height before moving the fall > board..although I have never heard of seasonal changes to > fall boards either. I may be off with both of those > 'non-observations'. > > -Phil Bondi(Fl) > > >
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