[Elecraft] KP3A circuit ?

[Andy Durbin]

"Found out also that there is a brocken pin at the PA board at jumper at P68A male connector. This brocken pin still remains in the according female connector. So lots of problems."

I don't know this module but Elecraft "keys" some connectors by removing a male pin and plugging the corresponding female pin.  Are you sure what you are seeing is not intended keying?

73,
Andy, k3wyc