Digital Piano keypad design

Thread Starter


Joined Jan 18, 2016
Hi everyone, I was hoping that some one could explain/or point me to some resource which has the explanation on how the keypad of digital pianos work - with all the zener diodes and multiplexing and demultiplexing. I sort of understand how the velocity of the keys are detected. I couldn't find a good schematic either.

Thanks in advance.