Hello Don, Hope you had a good New Year's.
I replaced X1 and subsequently D16 and D17, with no luck, still reading 12650. Getting a little frustrated. Any suggestions? 73, Byron N6UI bviets wrote: > > Don, > Well everything checked out, i can't find any fault with the installation > of those components. Looks like I need to order some parts, unless you > can think of anything else I should check. If I haven't mentioned it, > thank you for all of your help and attention. > 73, > Byron > N6UI > > > > Don Wilhelm-4 wrote: >> >> Byron, >> >> Fine on all that, so far so good - next is to check L31, X1, R21, D18, >> C84 and C85 for good soldering, and make certain D16 and D17 are >> oriented correctly. >> If nothing is found awry, I would arbitrarily replace X1 as the first >> step and after than D16 and D17. Remember that this is just like a VXO >> circuit, no real 'magic', you add capacitance (that is what the >> varactors should be doing at lower voltages) and the frequency shifts >> downward. >> >> 73, >> Don W3FPR >> >> bviets wrote: >>> Don, >>> I also took the liberty to do the checks on: RP2 pin 2, and the cathodes >>> on >>> D16 and D17 and they all behaved like U6 pin 1: 7.4 and zero when >>> switching >>> between BAND+ and BAND-. >>> 73, >>> Byron >>> N6UI >>> >>> >> ______________________________________________________________ >> 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/PLL-Reference-Oscillator-Question-tp4219007p4248126.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
