If you can hear nothing at all on 40m but the other bands are OK the likely problem is in the low pass filters on the K2 RF board. I surmise relay K2 which selects the 40m filter is not operating. Another possibility is K1 the bandpass filter for 40m though I think that less likely.
U1, the IO controller chip controls the relays. The pin Check pin 27 is correctly controlling relay K2 on the RF board. If the chip is dead this output will stay low. If it goes high on 40m but the relay does not operate, the relay is dead - or the contacts are welded in place. Do the same for pin 25 which controls K1. Mike -- View this message in context: http://n2.nabble.com/A-Bad-Thing-Happened-To-My-K2-tp1111532p1115226.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] 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
