I got loose connections at the "R-channel" output aswell as the "10..300 kHz" input on my "A3 source" board.
It is a 6 Ghz version and the VNA is an 8753E.
My question ist, if it is possible to simple remove the most right ceramic circuit board (see red marked box in the attached image) to inspect the contacts?
I am not sure how the connections to the neighboring ceramic boards are made and if i break something by simply removing the screws and pulling the modul out vertically.
Would be glad if Dr.Joel could give me some advice.