So A to B upgrades but not necessarily the rev B board? Chuck Jack KE9UW
Sent from my iPhone, cjack > On Apr 19, 2018, at 11:32 PM, Don Wilhelm <donw...@embarqmail.com> wrote: > > Erik, > > Your K2 has the A to B updates, do NOT put X2 in! > For Firmware level 2.01 and above, CAL PLL is done only on 40 meters (for all > bands). If attempted on other bands, you will get an INFO 232 error. > > Use the information in the newer manual - the older manual has information > *only* applicable to K2s that have not been upgraded. > > 73, > Don W3FPR > >> On 4/19/2018 10:18 PM, EricJ wrote: >> I have K2 SN 567. I didn't really have a problem with it, but I bought it >> used in 2005, had W3FPR look at it then, and install latest mods to bring it >> up to date. Today, I thought it might be time to take a look at alignment, >> and freshen it up a bit. >> When I did the "PLL Ref Osc Range Test" in Alignment Part II, the range was >> slightly less than 6 kHz. When I got to "VFO Linearization", 40 meters was >> fine without any INFO messages. >> I was using the original Rev B manual (not related to RevB board) that came >> with it. Under Part III, Alignment and Test there is another "VFO >> Linearization (All Bands)". I did that and every band failed (INFO 232) >> except 40 meters. And of course, in the Rev B manual, there is no INFO 232 >> only 235. Anyway, I checked around Q19 as the Troubleshooting suggested and >> found X1, but no X2. After reading the circuit operation, I was convinced >> somehow X2 got left out. Since it was supposed to be there to prevent the >> very short range problem I thought I was experiencing, I thought I had found >> the problem. >> I emailed Elecraft to order X2, and got a nice note from Mike saying they >> would send one out no charge. That kind of service still amazes me. But I >> told him to hold off until I can hear from this group. >> I checked my other K2 manual (I also have SN 6911), and, first, it does not >> have a procedure for VFO linearization on anything but 40 meters. In fact, >> it says INFO 232 probably occurred because I wasn't on 40m. And the parts >> lists says X2 is not used! >> I went into this without having any actual problem or complaint. The old >> manual convinced me I did. The later Rev I manual says I might, but didn't >> know it. I'm supposed to have a PLL range of 9.8 to 15 kHz. I have 5.97 kHz. >> So if that is a problem, the problem is associated with Q19 which is a very >> simple stage. X1 is probably the most likely cause. Any ideas? >> Also, since two crystals were originally used to "de-Q one another to >> increase the tuning range", what was done to make two crystals unnecessary? >> Thanks for any help, >> Eric KE6US >> ______________________________________________________________ >> 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 >> Message delivered to donw...@embarqmail.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 > Message delivered to c-haw...@illinois.edu ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
