[Elecraft] KNB2 "not installed"

[Allan Bacon]

I just finished wiring and installing a KNB2 in my K2.  When I turn the rig
on, I get the "Elecraft" display, then it goes to the normal frequency
display.  When I press the NB button, I get the same "not inst"
message that I got before I installed this module.
 
Following the troubleshooting hints in the manual, the board is plugged in
correctly, U3 is oriented correctly. I checked all the P1 pins.
 
 
Does anyone have any ideas?

 

 

Allan Bacon

KI4HRN