Hello Don, Thanks for the insight. I checked D4 and it seemed to be ok. I went ahead and removed U1 and the voltage on the D1 anode rose from -3.3 to -11.5! U1 must be bad. The only question is what made it that way?
I'm going to order a couple of 1406's from Mouser and see if that indeed fixes the problem. If the original chip suffered from a latent defect (in other words, was the proverbial "time bomb" waiting to go off), then I should be ok. If the failure was due to another faulty component then at least I've got a spare... Anything else I should look for before I proceed? Thanks again! Larry, KT4G -- View this message in context: http://n2.nabble.com/KIO2-Malfunction-tp4213518p4214968.html Sent from the [K2] mailing list archive at Nabble.com. ______________________________________________________________ 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
