I was reaching the final stages of installing the KAT2 to my K2. When I added power, I heard some sizzling and smelled smoke, This didn't happen with previous power up testing and the build and testing seemed to go without problems. I noticed that U1 was warm. Careful inspection showed that when I plugged J8 into the Control Board of the k2, I inadvertently shifted the plug up one space, causing the wrong signals/voltage to go down the wire. Corrected that and proceeded to test. The menu for the ATU appeared without problems and the Ant1/2 cycled on and off appropriately. When Checking voltage on U4, during TUNE at 5 , I only get 0.3 to 0.4 volts. The manual suggests that there is a problem with the build of the SWR bridge. Will check that, but my question is did I fry U1 and could that be the cause of what I see?
Tom Field KI6NRD K2 # 7432 Note: The K2 was working fine as a QRP CW machine prior to this. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
