Hello, so my addams family machine has failed, I now have two rows of switches that aren't working. To me that points to the return/common side of the switches so I done some tests. I've got continuity through the wire from the pin in the plug that goes on the PCB to all the effected switches and between the front and the back of the board. When the board is mounted on the backboard I can't get a continuity reading on any of the pins on the common side, but six rows of switches are working so I'm not sure if I should be (I would have thought so). I don't know enough and am pretty much stuck now, if anybody has any ideas they'd be most appreciated.