Tom - I had the same experience a few months back. I talked with Elecraft Support, and they had me check a few things. There was no obvious cause, except the power supply board was dead.
They asked me to send it in, which I did, and they replaced the board. Fortunately I got it back a couple days before the COVID shutdown hit, and it has been fine since. As a precautionary move, they changed the power transformer back to the default setting. I had set it up one notch because our line voltage is low, and that was needed to get it "near" the optimal value. I also have tuner (KAT500) issues, but will live with it, as I am reluctant to send anything anywhere at this time. 73 Lyn, W0LEN -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tom Berry Sent: Friday, June 05, 2020 11:05 AM To: [email protected] Subject: [Elecraft] KPA500 Dead I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. Now it will not power on. No lights, nothing. I checked the fuse and it is OK. Can you tell me where to start looking? Thanks Tom AAA4VV ______________________________________________________________ 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]
