Kazu, Try re-doing the tests on page 15 of the KRC2 manual. If those tests are not successful, try loading the KRC2 firmware (download available from the Elecraft website). You would need the KRC2 Download Program loaded onto your PC and the actual firmware file to be loaded from the PC - KRC2 Firmware 1.5.
If the firmware load fails, then you need to look for the problem in the KRC2. The usual advice of "Check soldering, then re-check the soldering, and when that is finished, check the soldering" applies. It may be that the firmware chip itself has failed, but hold on that conclusion until you have tried the soldering check and attempted another frimware download. If all of the above fails, then you may have damaged outputs on the firmware chip itself and you will have to order a new chip. 73, Don W3FPR Kazunori Watanabe wrote: > Hello, > > I just completed KRC2, initial test in page 15 of manual was successful. > Now completed final assembly and connect to K3 using AuxBus, turn > on 12V, LED does not turn on, K3 does not recognise KRC2. > Later I realised I should connect GND on pin 5 of K3 side, instead of > pin 6, which "KCR2" Manual Errata Rev C-2 Feb 11, 2009 instructed > me to do so. > Is there any possibility I damaged KRC2 because of this error? > After disconnect all cable and put 12V, still no LED light and no output. > > 73 de Kazu JK3GAD/M0CFW > ______________________________________________________________ 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
