Unplug the AUX IO cable from the KPA500 and try powering it on. If the Power ON/OFF signal is held low it will prevent the KPA from powering on. It might be that you have connected the KPA to the new K3 with a straight-through cable, which will cause this problem.
The KPA _will_ power on if the interlock actuator switch is loose, but it will not go into OP mode. - Jack B, W6FB > On Feb 17, 2015, at 5:11 AM, Amateur Radio Operator N5GE <[email protected]> > wrote: > > This is a 240V Amp. > > When pushing the on button on my KPA500 the power will not come on. > > It worked very well until I moved it to another place on the OP Table. > and connected it to K3 #1055 after having #1055 brought up to the > latest version at Elecraft. > > I have checked the fuses and verified that the power cord is supplying > the proper voltage to the amp internally and externally . > > What is the most likely cause of failure to get power to the amp? > > Which components should be checked next? > > Thanks in advance, > > Amateur Radio Operator > N5GE > > I have been up to see the > Congress and they do not > seem to be able to do > anything except to eat > peanuts and chew tobacco, > while my army is starving. > > Robert E. Lee > > > > ______________________________________________________________ > 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] ______________________________________________________________ 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]
