The 270 V fault refers to the voltage that is used to bias the pin diodes in the T/R switch. That voltage is derived from the same transformer tap as produces the nominal 60 V supply. When I built my KPA500 kit I measured the voltage and found it was much lower than 270. Customer support told me that was normal and I have never seen a 270 volt fault.
I'd have no problem removing the top cover and holding the micro switch closed while I measured the actual voltage on the 270 V connector. I can't suggest that you do that. Perhaps a careful visual inspection of everything you touched when you had the cover off? 73, Andy, k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
