I found the problem. After taking the cover off of the KRX3, I discovered that J92 was broken. There was no contact and of course no AUX signal. It appears that there was too much pressure between the KIO3 board and the cable attached to J92.
I have contacted Elecraft support for next steps. Thanks to those who replied off-line. 73, John, WA6L -- View this message in context: http://n2.nabble.com/K3%3A--Lost-in-Sub-RX-Operation-tp1651928p1652826.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com