I have an early model K3 s/n 1397 which I built and which I upgraded around 12 months ago with the new synthesizers etc.
It has the second receiver and numerous filters in both receivers. I have never had a moment's trouble with it since the original build in around 2009 and since the big upgrade. However, a couple of weeks ago, I had an ERR 12V message come up in the middle of a CQ and the rig stopped working. I simply turned it off and back on again and it seemed to be fixed. A little earlier today, I was calling CQ on 17m CW using the KPA 500 and the ERR 12V occurred again. This time I read the manual and saw that it could be related to the K3 PA module. I powered off the rig again and checked to find that there was some new firmware which I duly downloaded successfully. I then performed a TX gain calibration at 5w and 50w and that was successful. I then did a band by band check of the maximum CW power out. All seemed normal except for 24.9 MHz where the power out was around 130W - too high. However, as I was testing on 50.1 MHz the dreaded ERR 12V occurred again and after a power down and restart the same thing. Before I enlist the help of Elecraft, can anyone point me in the right direction to check for a short in the PA module. What should I be looking at/for ? The rig has not emitted any smoke nor has there been any burning smells or unusual noises. Any pointers would be appreciated before I take the rig apart. Thanks and 73 Barry Simpson VK2BJ ______________________________________________________________ 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
