Hi Joe, yes, I actually do have that mod installed (it was done by Elecraft last time the radio was back to meet it's maker).
Thanks, -J On Wed, Mar 9, 2011 at 17:08, Joe Subich, W4TV <[email protected]> wrote: > >> Perhaps the board that the ACC connector is attached to needs to be >> reseated? Any other ideas? > > Check the 12V sense mod: > http://www.elecraft.com/K3/mods/KPA3_12V_Sense_Modification_Rev_B.pdf > > Symptoms sound exactly like what you describe and I suspect your s/n > is well before the modification was added to routine production. > > 73, > > ... Joe, W4TV > > > On 3/9/2011 7:58 PM, Jeff Kinzli N6GQ wrote: >> >> Hi Don, yes, I have checked this - there is nothing connected to the >> ACC connector or the RS232 port when this occurs. >> >> Perhaps the board that the ACC connector is attached to needs to be >> reseated? Any other ideas? >> >> Thanks, >> >> Jeff >> >> On Wed, Mar 9, 2011 at 16:51, Don Wilhelm<[email protected]> wrote: >>> >>> Jeff, >>> >>> It sounds like the Remote Power ON signal (on the ACC connector) is >>> becoming >>> active for some reason or another. If anything external to the K3 or >>> internal is pulling ACC pin 8 to ground, the behavior will be as you >>> describe. If you have a cable plugged into the ACC connector it should >>> be >>> checked for that condition. >>> >>> 73, >>> Don W3FPR >>> >>> On 3/9/2011 6:47 PM, Jeff Kinzli N6GQ wrote: >>>> >>>> Hi there, I have a K3 (s/n in the 400's with most upgrades done) >>>> intermittantly turns it self on, and sometimes won't shut down (via >>>> the front panel power switch). >>>> >>>> I believe my PS is in good order, and nothing but antenna, PS and >>>> paddle are connected to the back. It doesn't appear to be related to >>>> anything external, and it's not dependable, just intermittant. It >>>> started doing this a few months ago, then went away, and now started >>>> up again. >>>> >>>> Maybe one of the boards needs to be reseated? Anyone else seen issues >>>> like this? For now, I'm just powering off the PS when the radio is not >>>> in use, and when it won't shut off, I have to turn the PS off to shut >>>> the radio off. If I turn the PS back on at that point, the radio comes >>>> back on. >>>> >>>> I have not yet tried another PS or battery to see if that's the >>>> culprit but that will be my next step if this isn't a common problem. >>>> >>>> Thanks, >>>> >>>> Jeff N6GQ >>>> >>> >> ______________________________________________________________ >> 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

