Pierre, That trace broken would likely let the input to U3 float to a high level which would turn on the 6T voltage rail - providing power to the transmitter components. The result is that the transmitter is being keyed, but not at the correct frequency - it would be at the frequency of the receive VFO. I hope you did not have it connected to an antenna, because that signal 4915 kHz above the receive frequency could have been radiated, although the low pass filter would reduce its amplitude substantially.
73, Don W3FPR Pierre wrote: > Thanks Don for the suggestion. I repaired the broken trace and the KX1's case > in cool again... > > The problem was that the path between pin 2 of U3 and pin 17 of U1 was > broken. Don't know why it made Q6 hot, but anyway it's Ok now > > 72/73 de Pierre Ve2PID > > ______________________________________________________________ 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
