J137 and J138 are the same, as you can see by looking at the traces on the board.
Same with133-134, and also the two connectors on the CPU board.
I usually put those connectors on the innermost spots on the board, so it doesn't have to pass the other header pins.
The wires often come partly out of the Insulation Dis[placement Connectors (IDC) causing stuff to fail, That looks probable on your switch connector (j208).
Nice pics for requesting help, I bet you get it sorted out.