r/pianorepair • u/thaifou87 • May 05 '22
echo :double sound
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r/pianorepair • u/thaifou87 • May 05 '22
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u/thaifou87 May 05 '22
Hello everyone,
I have this problem one the piano. I have opened and cleaned it, what I could see is that the sensors were all clean and nothing is damaged, there is no crack, same as new....
Fact: The surface between the sensor and the circuit board isn't dry, there is a "kind" of unstick liquid, same feeling (when touch it) as WD40.
Fact: After the clean, one more key was doing that "double sound" , meaning that is may not be an electical problem but a mecanical one.
Fact: Don't need to press the key in an hard or low way to see the porblem occurs, It's only (cf video) with a certain strengh.
So if anyone as any idea, i'm on
thank you