John: If you have an old K2 main MCU try it and see if it fixes your KIO2 problem before you order parts. My K2 was subject to lightning (not as direct hit but in the neighbors yard) and the only symptom was that the KIO2 would not work. After determining the input port on the PC was shot (tried other serial device) thought it was fixed. Then spent many hours trouble shooting and replacing the KIO2. Once it was fixed I determined the pin the KIO2 interfaces with on the KIO2 was internally open - thus needed a new MCU. Three things broke, two in K2 and one in the PC. Strange that everything in the PC worked except the serial port. And everything in the AK2 worked except the KIO2.
Rich _______________________________________________ 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