1) Do you have the yellow tap connected to the PS board and the other taps mounted on the rear panel?
2) Are the "parking" connectors on the rear panel for the unused taps insulated from the chassis and each other? 3) Are the wires to the rectifier board (on the "Z" bracket just behind the front panel) connected correctly? 4) Are the Primary connections to the power supply board (just inside the left side panel) correct? If those things are all correct, post the question to K3Support at Elecraft dot com. They will work through it with you. Good luck! Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Raskin Sent: Sunday, January 08, 2012 3:47 PM To: [email protected] Subject: [Elecraft] KPA500 I just finished assembling my KPA500 (s/n 625). I was very careful in following the instruction, or so I thought. When I plugged it in and turned on the rear rocker panel switch, the fuses immediately blew. I have the 120 VAC power cord and the 12 Amp fuses installed. Any suggestions where to start? Mike, W4UM ______________________________________________________________ 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
