How old is the system? Some of the older systems did hum with the silver power supply. Dean Dean May cell 812.239.3359 PianoRebuilders.com 812.235.5272 Terre Haute IN 47802 ----- Original Message ----- From: richard.ucci at att.net To: pianotech at ptg.org Sent: Monday, January 08, 2007 5:56 PM Subject: piano disc Hi List, Tuned a PR gp-142 with a piano disc system today. Last year I installed a Dampp Chaser system in this piano as well. After tuning ,I turned on the piano disc and played a cd. When I was about two minutes into it I hit the stop button and started to pack up. A very noticable hum was heard comming from what I think was the amp. It was not there before. Also this piano gets very little use and was sitting dormant for at least six months. What can I do to fix it? Rick Ucci/Ucci Piano -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070109/de84bcdf/attachment.html
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