Hi Don, Thanks for your usual support.
I built the K2 back in 2004 : I don't know if it would have the new or the old encoder board. I would need to check what type of encoder board I have inside but I cannot recal having it on a different board (and by looking at the construction manual that I have it doesn't seem to refer to any additional control board). I have no mean to actually open it here as I'm far from my work bench. Are you refering to the board described in this manual : http://www.elecraft.com/manual/E740177%20K2%20Encoder%20Installation%20Instructions,%20rev%20B.pdf ? If yen then I clearly have the old one with the long leads. In my manual it's described in figures 5-18 and 5-19 on page 32. The K2 had not been used for several years (almost 6 !). It has now been plugged to a battery for over 48 hours and doesn't exibit the blinking phenoma anymore (and it never did befofre. I wonder if it could be related to chemical capacitors ... 73's Martin 9V1RM On Mon, Jul 31, 2017 at 1:01 PM, Don Wilhelm <[email protected]> wrote: > Martin, > > While that may happen rarely in any K2 - when the firmware is quite busy, > your video shows it happening frequently, which is abnormal. > > The most common cause of that behavior is in late K2s with the new encoder > - the one with the encoder board that sits close to the control board. If > that describes your K2, then flush cut the encoder board leads (really > close to the board) and do the same on the control board in the area where > the encoder board can contact the solder side of the Control Board. > > If your K2 has the older encoder, then look for a bad solder connection on > either the Control board or the Front Panel board. > > 73, > Don W3FPR > > > On 7/31/2017 5:06 AM, Martin Rath wrote: > >> Hi, >> >> I happen to be in Europe for a few weeks of holidays and wanted to use my >> old K2 that I never imported into Singapore for some QSO's. >> >> I'm facing an issue with the LCD randomly flickering and displaying the >> power and speed. >> >> I have also experienced that when I'm in the middle of a QSO the speed >> will >> randomly change. >> >> ______________________________________________________________ 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 Message delivered to [email protected]
