Create a New Forum Owner Login Contribute & Create Your Member account VoyUser Login (see contribute) VoyForums Directory/Categories No-ads: Completely remove ads from your forum VoyForums Homepage VoyForums News Help Desk VoyForums Exchange FAQ - Frequently Asked Questions Search VoyForums
Oklahoma Disaster Relief American Red Cross Together, we can save a life See Kare11.com's page for more ways to contribute. VoyForums Notice -- Quick Contributions: Donate $10 to the Red Cross: Text the word REDCROSS to 90999 Donate $10 to the Salvation Army: Text the word STORM to 80888 * The charge will appear on your cellphone bill.

[ VoyUser Login optional ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2 ]

Subject: "Strange" failures in aging Pianocorder

Author: Roger Dalziel

[ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 10:14:58 02/16/08 Sat My Pianocorder stopped operating the soft pedal last week. The fault turned out to be in the connector which plugs onto the power supply printed circuit board. A year or two ago, one of the note driver boards stopped working for no apparent reason. The cause was similar -- a poor connection at the center driver board where the +170 volts is fed to the 32-note driver boards. I suspect that the problem originates with cheap, shoddy construction using contact material which loses spring tension over time. That tension is needed to maintain a gas tight contact with the pins on the printed circuit boards. Hopefully this will save someone's head of hair when frustration sets in. [ Next Thread | Previous Thread | Next Message | Previous Message ]