I've also had a situation where just one of the battery wires came adrift from the plug that comes from the battery pack and goes into the other half of the case. The KX3 behaved very peculiarly for a while until I noticed it and re-soldered (fiddly job).
Stephen G4SJP On 5 October 2014 09:27, Doug Turnbull <turnb...@net1.ie> wrote: > Phil, > I have also experienced the KX3 going dead on fully charged batteries. > It seems that the only cure was to open up the KX3 remove and reinstall > batteries and also check cables to see that they are fully seated. Then > things work again. I have no idea why this should be and thankfully it > does not happen often. In my case removing and reinstalling the > batteries > seems to be a necessity almost as if it was allowing a power off reset. > This problem seems to occur after a battery charge cycle. The problem is > thankfully rare but it puts a chill through my bones. > > 73 Doug EI2CN > > -----Original Message----- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil > Hystad > Sent: 04 October 2014 23:38 > To: elecraft > Subject: [Elecraft] KX3 Battery Supply Inoperative 42 Percent of the > Time... > > OK, Here's the thing... > > My KX3 battery has operated flawlessly ever since I first built the KX3 and > put in the battery holder/charger feature. One set of batteries being used > in portable QRP ops being discharged and recharged many times. Then, I > decided to buy the 2-meter module option and install that. > > I started the installation which included taking out all 8 batteries, > unplugging the battery connector that goes to the other half of the KX3 and > so on. I get part way into the installation and discover that I cannot > finish the job because inductor L40 which has to move cannot physically > move > at all. So, I send it to Elecraft, they do the installation, they send the > unit back to me and everything is hunky-dory except for the battery > facility. > > These are the symptoms. Brand new batteries installed, and I operate the > KX3 with external power and make sure that the batteries are fully charged. > The VFO B Display shows BT voltage with a good charged level. I turn the > KX3 off, disconnect external power, and go to turn on with battery power. > Nothing happens, just as if no batteries installed. > > I replug external power, turn on KX3 using external power and check out the > various battery menu settings and so on. This time, without unplugging > external power connector, I merely turn off the external power supply and > the KX3 continues operating nicely with battery power. I do a number of > tests with CW key down into metered dummy load to check TX and a few other > things. I think the problem solved. I run on batteries all afternoon to > run them down. Turning on external power I recharge the batteries back up > to an operating level. I turn off KX3, disconnect external power, and turn > on KX3 and nothing happens just like before. I fiddle with things a bit. > I > attempt to do what I did before that brought life back to the battery > feature but nothing happens. > > I split open the KX3 and check the power plug. I push in on it a little > bit. I put the two halves loosely back together and then do a power on and > the KX3 comes alive on batteries. > > I am thinking that I have a loose connection somewhere, maybe the battery > hookup plug that goes across to the other half. > > Anyone have problems with these connectors? I am wondering if I just give > up on the battery thing and use my external Li -ion external batteries from > now on. > > 73, phil, K7PEH > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to turnb...@net1.ie > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to eastbrantw...@gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
