I had purchased a cheap Walmart piano to play around with my music creation and have some options other than bass/guitar. I have been learning oscillator circuits and made my own effect pedal, so when the main chip started acting like it got burned out, I wanted to use the key circuit board...
So I've got a problem with my keyboard that is plugged to my laptop.
I unscrewed everything and checked the keys, checked the circuit etc, I reached a conclusion where it's the problem with the circuit board/ maybe motherboard. Whenever I press the shift it outputs a "D" and when I press the d...