Great! The "shotgun" approach wins again!!! John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" ----- Original Message ----- From: "Sean H. Breheny" To: Sent: Monday, February 24, 2003 10:12 AM Subject: Re: [OT]: Korg Digital Piano > Thanks to all who responded, > > Last night, after a marathon session, we fixed it! It appears that the > problem was indeed a cold solder joint in the power supply. > > We found that we could cause the piano to shut down and restart by pressing > on various parts of the power supply board with a pen. When I inspected the > bottom of the board for cracks or bad solder joints, I couldn't find > anything visually. I then went to check conductivity with my meter and > found that the probe had broken off the meter lead (!) while it was sitting > on the floor when we were working. So, I ended up just reheating all of the > solder joints in that section of the board. When we reassembled it we could > not reproduce the problem, even by pressing on the board. We played it for > about an hour and no problems. Since, before the repair, we had always > seen the problem at least within 10 minutes, it does indeed seem that it is > fixed. Whew, at least several hundred dollars saved! My friend was VERY happy. > > Thanks again! > > Sean > > > At 03:17 PM 2/23/2003 -0500, you wrote: > >Hi Sean! > > > > > When you turn it on, there is a brief period of about 3 seconds before it > > > can be played. After this brief delay, you hear a relay click and then it > > > is ready to play. It has always done this. When it quits, you hear the same > > > relay click sound, and sometimes the power LED remains on, sometimes it > > > doesn't. > > > >Related to the electrolytic cap suggestion, 'Gotten worse' indicates that > >the cap is degrading further. > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body