I just bought a lightly used KPA500. It arrived from the seller, well packed and complete with cables, manuals, etc. I turned the amp on, interfaced it with my K3, keyed the radio and the KPA500 immediately shut-off. No fault light or error code, nothing. It shuts down just as if I had pressed the power button, the fan runs, etc... The antenna is resonant 1:1, I've lowered input power to 10 watts, swapped coax, hooked it up to another K3, used RCA to RCA cable, the Elecraft cable, etc.. When down to 10 watts input, I can tap the paddle like a straight key lightly and the amp works, but put two dits together and it shuts down.
Has anyone had an experienced anything like this. I keep thinking this has to be something simple. Mike AD5A ______________________________________________________________ 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 Message delivered to [email protected]
