Bill, I have exactly the same issue on my old KX3 for last few days.
I got the hint from VK5CP on groups.io to check that the ribbon connectors are seated properly as he had the same fault and it resolved it. I am going to do it also today evening after coming back from work. Let me know if it helped please. 73 ----- 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html