A phone call to Yamaha Technical Services will get you authoritative answer to your question.<br><br>On Tuesday, September 13, 2011, Richard Ucci <<a href="mailto:richarducci@comcast.net">richarducci@comcast.net</a>> wrote:<br>
> List, I have a sticky on/off button on a 15yr old Yammy.<br>> Is it ok to spray some contact cleaner in the slits around the button? Or does the head have to be taken apart to correct?<br>><br>> Rick Ucci/ Ucci Piano<br>
> <a href="http://www.uccipiano.com">www.uccipiano.com</a><br>><br>>