I forgot to mention... thanks Chuck W5UXH.... --Andrew, NV1B ..
On Fri, Jul 22, 2011 at 10:03 PM, Andrew Moore <[email protected]>wrote: > Problem solved! > > Thank you in particular to Tony KT0NY, Don W3FPR and Alexey. > > Turns out that D1 was the problem. Note! It wasn't due to a short as some > had suggested, but rather, checking the errata sheet revealed that on the > Rev. A board (like mine), the silk screen was backwards. The banded end of > diode D1 (1N4148) should be nearest to R7, which is the opposite of what the > silkscreen suggests. Turns out my XG2 was assembled incorrectly from the > start (I'm guilty). Not sure if the errata was issued yet when bought my > XG2 or if that came afterwards, but in any case, I cut out D1 and replaced > it in the opposite direction and instantly have a proper 50 uV signal. > > I did also remove D2 (the rectangular "output" LED) but I'm not sure if > that was a problem or not. > > Thank you all; I would never have noticed this problem unless you mentioned > it. Now I will proceed with calibrating the K3 using this reference signal. > > --Andrew, NV1B > .. > > ______________________________________________________________ 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
