If you are not measuring the rear mic jack bias voltage when the bias is switched on, then there is likely an issue with your KIO3 or the daughterboard with the audio jacks. Please contact k3supp...@elecraft.com.
73, Lyle KK7P ______________________________________________________________ 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