Hi Dave, Yes I did solve by opening up the K3 and 'jiggling' circuit boards and putting covers back on....so, not sure which board had gotten loose. I see where you cc support, as it's the weekend, you may want to post on the reflector so the battery of experts, like W3FPR can read your well written diagnosis below.
Wish you luck. 73 Tom On Sat, Aug 1, 2015, at 17:38, Dave New, N8SBE wrote: > Did you ever solve this? > > My K3 just died, after being left on overnight. It was working fine > last evening, and this afternoon, I came down to the shack to start the > NA QSO party CW contest, and no receive, no transmit. > > I've tried a number of things, including re-loading all the firmware, > with the requisite reboots, and restoring the configuration file I had > saved just before I took the rig out to W8UM field day. During Field > Day, we started getting ERR 12V errors, and the rig started > spontaneously shutting down, coming up in low power (less than 10W). We > had to finish operating the weekend at the 10 W level. Later, I > discovered that the rig was suffering from the dreaded tin-plated > connector issue, so I ordered the connector upgrade kit, and installed > it a couple of weeks ago. All seemed fine at that point, and we did use > the rig to make about 50 contacts (at full power) at the Detroit Maker > Faire N8M station last weekend. > > So, here's what I know, so far: > > 1) When I change the filter/DSP controls, I can hear the receiver noise > change accordingly, so it seems that the receive chain is intact at > least from the crystal filters to the audio out. > > 2) I have the subreceiver installed, and I hear (don't hear?) the > identical things on it, so it seems likely that it is something that is > upstream to both the main and subreceiver, or something they both share > (like a mixer/oscillator). > > 3) I've tried all bands, and none of them are working, BUT > > 4) I can see signals on the P3 on all bands, so the signals are getting > at least to the IF takeout for the P3. I can see signals on ANT 1, ANT2 > (I have the ATU), Rx ANT and on the XVTR IN with the KXV3 set to test > mode. > > 5) In all of these cases transmit shows 0 W out. The transmit audio > works on USB/LSB, showing ALC and compression readings on the meter. > With VOX on, the CW paddle switches the K3 into transmit mode, the TX > LED lights, and the CW decode shows the transmitted characters. > > 6) I tried to do an RF calibration with the K3 utility, and it seems to > complete, but the K3 displays "E 0400E2 ERR DSE", and I have to power > down/up the radio to get rid of the error message. This might just be a > red herring, as I've read messages that indicate this could be an > overrun error or some other communications error when using the KUSB > adapter (which I'm using on a Windows 7 PC). > > In summary, the K3 serial 3105 seems to behave completely normally, > including all controls and displays, except that I cannot hear signals > from the antenna, although they are displayed clearly on the P3, and > transmit power is nil. > > Any suggestions would be most welcome. > > 73, > > -- Dave, N8SBE > > -------- Original Message -------- > Subject: [Elecraft] K3 no xmit, no receive? > From: cx...@4email.net > Date: Sat, May 30, 2015 11:08 am > To: elecraft@mailman.qth.net > Cc: k3supp...@elecraft.com > > Hola, > > I was scheduled to operate my K3 as a remote for the WPX contest. > Problems with VPN at remote site delayed that setup. As contest time > approached, I decided to deploy my Buddipole out the apartment window > and was gonna play around with 100w and dipole config.on 15m. > > However, I could not hear any signals, at all. Nothing but white noise > on all bands. The Buddipole ends in a BNC which I had connected to > adaptor for PL259. Tried Ant 1 and Ant 2 with no luck. Thinking adaptor > may be bad, I hook BNC to RX in but no sigs there. > > This morning, more troubleshooting, I discovered that there is no power > out (although I was tricked as ATU was finding perfect SWR , HI). > > K3 has not been used for over a year and when I brought it to HP, it was > inside my rollaboard so I had a watchful eye on it during the trip. The > only thing I can think of, is perhaps one or more of the circuit boards > was dislodged due to vibrations of rolling around the airport or within > the airplane(s) themselves. 9 hours on B767 then 3 on a > B737. > > Before I open up the K3 and start messing around inside. any suggestions > or tips on where I should start? I am thinking of pulling circuit boards > then resetting them, just in case one or more was 'jiggled' loose during > transport. > > 73 Tom HP1/K6CT aka CX7TT > > -- > ______________________________________________________________ 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
