Please follow the steps in K3 Utility Help, Troubleshooting MCU Load failure.
Dick, K6KR Sent from my iPad On Jul 8, 2012, at 8:46 PM, "Jim Miller KG0KP" <[email protected]> wrote: > I had made several JT65 contacts and a phone contact just prior to this > problem. > > K3 hung up (became constant errors appearing to be communications problems) > during load of new code from non-updated Utility Program. Went to website > and downloaded new Utility and re-downloaded code. K3 was now in MCU LD > mode. Utility indicated during port test that the K3 needed a MCU LD. This > only happened once. After that it was just trying different baud rates on > the comm port. Disconnected PC to P3 cable at P3 and connected directly to > K3. No change. Removed that cable and used the cable had gone from the P3 > to the K3. No change. Used another PC with a real Comm port and downloaded > the K3 Utility to it and tried it direct. That did not work either. > Different PC, different cable, new loads of Utility and K3 code to each PC > each direct from the Elecreaft site. The only common piece here is the K3. > > The K3 initially had to have power unplugged as it was totally froze up > after the initial incident. When powered on, it came up in MCU LD mode on > its own. That is the only time the Utility program said it needed MCU LD. > The PCs had been rebooted numerous times during this procedure to insure > there wasn't something being assumed by the PC OS or the Utility program. > All future times it simply could not communicate, repeatedly trying > descending baud rates. > > Looking at the Utility help files on force loading the MCU, it says to leave > the K3 without power connected for longer than a few seconds. This was done > for a 35 minute period, no change. Power on was done by procedure of > holding the power switch in until the transmit light starts blinking and the > darkened panel shows MCU LD. > > I also removed the top cover and removed and reinstalled the KIO3 bd and the > KXV3 bd. No loose connections. > > I CANNOT talk to it. Anybody with any ideas, please respond. > > Thanks es 73, de Jim KG0KP > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
