I should of said I am on Page 36 of the Alignment and Test Part 1 so I think that there is no output, I will check the board anyway, you never know. At first I did find some points not soldered and took care of them. Still checking and killing brain cells. Not sure if the display goes blank when you are transmitting or still displays the frequency that you are on. I was thinking ground or short but the backlight stayed on.
Rick/WA6ES Don Wilhelm-4 wrote: > > Rick, > > An additional thought - that blank display when keyed could be an > indicator of a bad solder connection in the DC supply section of the > K1. You are apparently capable of searching through the schematic, so > start at the 12 volt input and check all the points up through the > regulators for good solder connections. Re-flow those connections with > a hot (750 deg F) soldering iron and see if you find any improvement. > > My guess, one or more of the voltages is reading fine in receive, but > the higher current draw when the key is depressed (transmit mode) is > causing one of the voltages to sag to less than normal - a bad solder > connection could cause that. > > 73, > Don W3FPR > >> > ______________________________________________________________ > 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 > > -- View this message in context: http://n2.nabble.com/Building-a-K1-no-side-tone-tp4244892p4246091.html Sent from the [K1] 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
