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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Yamaha Piano pedal mechanism
The sustaining pedal on my Yamaha electronic piano is become rather
flaky. Sometimes it doesn't sustain when pressed. So I disassembled the piano enough to get at the mechanism, (removed 12 screws, and 6 bolts), and was rather surprised to see that the business end consists of a potentiometre. I'm not really surprised that it's failing. In fact, the surprise is that it's lasted so long. When a piano is played, the sustaining pedal is in constant use. I can't help feeling potentiometres were never designed with that kind of use in mind. The design seems rather primitive. Sylvia. |
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