OK, I posted in this section because it's not arcade related. I have an electronic music device where a sequencer start button that doesn't always start. Seems intermittent. If I twist the board, it is on it then works, but then later stops working. I think there is some sort of internal trace that's cracked, but I cannot find it under bright light behind the PCB. There seems to be no cold solder joints visible under lens either.
Can someone explain to me how this switch matrix works?
The button in question is the one that says R/S there at the top in the fourth column second row with SW6 pin 41.
I'm trying to understand if I can jumper a wire from one of the two pins of the switch, but I don't know if I have to jumper to one to ground or somewhere else. I think I understand that when I press the switch it essentially lets in the main CN10 pin SW6 to the main CN6 pin SW SC 3.
Maybe someone can help with their schematic reading knowledge. Thanks.
Can someone explain to me how this switch matrix works?
The button in question is the one that says R/S there at the top in the fourth column second row with SW6 pin 41.
I'm trying to understand if I can jumper a wire from one of the two pins of the switch, but I don't know if I have to jumper to one to ground or somewhere else. I think I understand that when I press the switch it essentially lets in the main CN10 pin SW6 to the main CN6 pin SW SC 3.
Maybe someone can help with their schematic reading knowledge. Thanks.
