<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">  <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PostalCode"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> There should be no noise on a one year old system. See if you can isolate it. It is probably coming from the power supply mounted up between the beams. It might be coming from powered speakers mounted underneath. Try turning them off to see if it goes away. <o:p></o:p> <o:p> </o:p> There should be a 3/4" wide ground strap running from the power supply to the sheet metal box covering the solenoids. There should also be one running from the same box to the control box in front. Call Nina Butler at PianoDisc, (866) 343-8324. You should carry this number with you so if you run into problems in any customer’s house you can call tech support on the spot. <o:p></o:p> <o:p> </o:p> <div> Dean<o:p></o:p> <u1:PersonName u2:st="on"><st1:PersonName w:st="on">Dean May</st1:PersonName></u1:PersonName>             cell 812.239.3359 <o:p></o:p> PianoRebuilders.com   812.235.5272 <o:p></o:p> <u1:place u2:st="on"><u1:City u2:st="on"><st1:place w:st="on"><st1:City w:st="on">Terre Haute</st1:City></u1:City> <u1:State u2:st="on"><st1:State w:st="on">IN</u1:State></st1:State>  <u1:PostalCode u2:st="on"><st1:PostalCode w:st="on">47802</u1:PostalCode></st1:PostalCode></st1:place></u1:place><o:p></o:p> </div> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of richard.ucci@att.net Sent: Tuesday, January 09, 2007 8:46 AM To: <st1:PersonName w:st="on">Pianotech List</st1:PersonName> Subject: RE: piano disc <o:p></o:p> </div> <o:p> </o:p> Hi Dean,<o:p></o:p> This one is only about a yr.old.<o:p></o:p> <blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'> -------------- Original message from "<st1:PersonName w:st="on">Dean May</st1:PersonName>" <deanmay@pianorebuilders.com>: -------------- <o:p></o:p>  How old is the system? Some of the older systems did hum with the silver power supply. <o:p></o:p> <o:p> </o:p> <div> Dean<o:p></o:p> <u2:PersonName u3:st="on"><st1:PersonName w:st="on"><u4:PersonName u5:st="on">Dean May</st1:PersonName></u4:PersonName></u2:PersonName>             cell 812.239.3359 <o:p></o:p> PianoRebuilders.com   812.235.5272 <o:p></o:p> <u2:place u3:st="on"><u2:City u3:st="on"><st1:place u6:st="on"><st1:City u6:st="on"><st1:place w:st="on"><st1:City w:st="on">Terre Haute</st1:City></st1:place></u2:City></st1:City> <u2:State u3:st="on"><st1:State u7:st="on"><st1:State w:st="on">IN</u2:State></st1:State></st1:State>  <u2:PostalCode u3:st="on"><st1:PostalCode u8:st="on"><st1:PostalCode w:st="on">47802</u2:PostalCode></st1:PostalCode></st1:PostalCode></st1:place></st1:place><o:p></o:p> </div> <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> ----- Original Message ----- <o:p></o:p> </div> <div style='font-color:black'> From: <a href="mailto:richard.ucci@att.net" title="richard.ucci@att.net">richard.ucci@att.net</a> <o:p></o:p> </div> <div> To: <a href="mailto:pianotech@ptg.org" title="pianotech@ptg.org">pianotech@ptg.org</a> <o:p></o:p> </div> <div> Sent: Monday, January 08, 2007 5:56 PM<o:p></o:p> </div> <div> Subject: piano disc <o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> Hi List,<o:p></o:p> </div> <div> 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.<o:p></o:p> </div> <div> A very noticable hum was heard comming from what I think was the amp.<o:p></o:p> </div> <div> It was not there before. Also this piano gets very little use and was sitting dormant for at least six months.<o:p></o:p> </div> <div> What can I do to fix it?<o:p></o:p> </div> <div> Rick Ucci/Ucci Piano    <o:p></o:p> </div> </blockquote> </blockquote> </div>  </body> </html>