I found the problem... There is a jumper inside the preamp that needs to be removed when used with the K3 and the accessory connector. I thought I removed it when it arrived, but I guess my age is starting to show...
Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ Owner - Operator Big Signal Ranch Staunton, Illinois email: [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of iain macdonnell - N6ML Sent: Monday, December 31, 2012 4:04 PM To: [email protected] Cc: Elecraft Mailing List Subject: Re: [Elecraft] K3 won't shut off? I would check inside the DE15 connector - maybe something is shorting pin 8 to ground inside there. 73, ~iain / N6ML On Mon, Dec 31, 2012 at 1:49 PM, Dr. William J. Schmidt, II <[email protected]> wrote: > Yes, it works fine with the preamp completely removed... > > > Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ > > Owner - Operator > Big Signal Ranch > Staunton, Illinois > > email: [email protected] > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of iain > macdonnell - N6ML > Sent: Monday, December 31, 2012 3:18 PM > To: [email protected] > Cc: Elecraft Mailing List > Subject: Re: [Elecraft] K3 won't shut off? > > Does the K3 power off fully if you disconnect the ACC connector? It > sounds like something is pulling pin 8 down.... > > 73, > > ~iain / N6ML > > > On Mon, Dec 31, 2012 at 12:20 PM, Dr. William J. Schmidt, II > <[email protected]> wrote: >> So I connected my PR6 - 6 meter preamp to my K3 for the first time >> last week and work some DX. At the end of the day I go to shut the >> radio off and the display goes blank (hear the relays disengage) but >> all of the LEDs are still lit on the radio. and it will not turn back >> on except to cycle the power on the power supply. I discuss this >> with a friend and he reminds me that there was a MOD for K3's to put >> a diode on the KPA3 board for the 12V sense circuit, but after >> looking at the MOD sheet on the Elecraft website, it says that this >> MOD was incorporated into the radio as of 2009 (my radio less than a >> year old). I remove the fans to check for the 1N4148 on P68A of the >> KPA3 and it's not there. So two questions. Has anyone else >> experienced this phenomena, and does anyone know. was that diode >> actually incorporated > into the radio on the board somewhere else and mine is just bad? >> >> >> >> >> >> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ >> >> >> >> Owner - Operator >> >> Big Signal Ranch >> >> Staunton, Illinois >> >> >> >> email: <mailto:[email protected]> [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 > ______________________________________________________________ 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
