Re: [Elecraft] K3 apparent PA failure Update.
Martin, Contact Elecraft support. I purchased a pair of the same MOSFET's a couple of years or so ago when my K3 did the same as yours... Unfortunately mines done it again just recently, so this time I'm ordering a few spares. 73 Matthew VK5ZM On 10 April 2018 at 14:32, Martin Sole wrote: > Hi, > > Both output devices in the LPA, Q4 and Q5, RD15HVF-1, show low ohms gate > to source, one is 2.4 ohms the other 4.6 ohms. > > Anyone have a recommended source? I don't think these are available > locally, I'll need to get a couple shipped in from US or elsewhere most > likely. > > Thanks > Martin, HS0ZED > > __ > 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 vk...@bistre.net > __ 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
Re: [Elecraft] K3 apparent PA failure Update.
Hi, Both output devices in the LPA, Q4 and Q5, RD15HVF-1, show low ohms gate to source, one is 2.4 ohms the other 4.6 ohms. Anyone have a recommended source? I don't think these are available locally, I'll need to get a couple shipped in from US or elsewhere most likely. Thanks Martin, HS0ZED __ 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
Re: [Elecraft] K3 apparent PA failure
Have you tried doing a TX GAIN calibration? It will likely fail given what you are seeing but it's another step to try. GL & 73, Brian, K0DTJ > On Apr 9, 2018, at 18:11, Martin Sole wrote: > > Hi, > > I can see output at the XVTR OUT jack. Using direct input on the LP-100A > meter it shows output varyng in sympathy with the output level control and a > setting of L 1.00 gives pretty much 1dBm on the LP-100A. Lowest I can read is > around -12dBm and highest about +3dBm before the K3 switches to H 0.1. Then > on the main ant jack I see nothing. > > I'm thinking this has to be somewhere between the input to the LPA and the > output. > > Does the SWR bridge need to see some output? Just wondering if something were > fried in the the bridge so it's feeding nothing back to the measuring circuit > does that cause the PA chain to essentially shut down? > > Martin, HS0ZED > __ 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
Re: [Elecraft] K3 apparent PA failure
Hi, I can see output at the XVTR OUT jack. Using direct input on the LP-100A meter it shows output varyng in sympathy with the output level control and a setting of L 1.00 gives pretty much 1dBm on the LP-100A. Lowest I can read is around -12dBm and highest about +3dBm before the K3 switches to H 0.1. Then on the main ant jack I see nothing. I'm thinking this has to be somewhere between the input to the LPA and the output. Does the SWR bridge need to see some output? Just wondering if something were fried in the the bridge so it's feeding nothing back to the measuring circuit does that cause the PA chain to essentially shut down? Martin, HS0ZED __ 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
Re: [Elecraft] K3 Apparent PA failure ?
Hi, I see about 1.17A in receive and only 1.8A in TX TUNE mode with the the PWR control set at 110W. Martin, HS0ZED On 10/04/2018 07:38, Al Lorona wrote: Martin, Does the K3 draw any current from the power supply when you go into TUNE? If so, then maybe the power meter is bad. If not, then there is something wrong in the DC power to the amplifier stages. Al W6LX *From:* Martin Sole *To:* elecraft@mailman.qth.net *Sent:* Monday, April 9, 2018 5:36 PM *Subject:* Re: [Elecraft] K3 Apparent PA failure ? Hi, Well I've been through all of the operational settings. CONFIG : TUN PWR is set to NOR and I can vary the power with the power control but the output meter display stays at 0.0 and the VSWR displays only - - . I had a settings save from about a month ago but uploading that hasn't changed anything. Since this affects both the 100 watt PA and the LPA I'm guessing the 100 watt PA is probably good and that the failure must be earlier on. My next test is to look at the XVTR output as I see that is taken off before both amplifiers to see if there is anything there. Martin, HS0ZED >> Hi, >> >> My K3 died today, somehow. The radio works fine on receive and >> appears to transmit just there is no power indication on my external >> meter or on the front panel when pressing TUNE. There is ALC >> indication but no power out indication.The only thing I did different >> was to switch off the supply before the radio, something I normally >> never do. Having noted others having issues with that I reloaded the >> firmware. Still no output. Starting to think that somehow the PA is >> fried or possibly the driver as there is nothing from the 10 watt PA >> either. Tried turning the power down and putting the KPA3 into >> bypass. Still no power output. Not sure what else to try before I >> tear into it. Was going great, worked 3B7A on 3 bands today no problem. >> >> Suggestions appreciated. >> >> Thanks >> Martin, HS0ZED >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> >> >> This list hosted by: http://www.qsl.net <http://www.qsl.net/> >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to d...@nk7z.net <mailto:d...@nk7z.net> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> > > This list hosted by: http://www.qsl.net <http://www.qsl.net/> > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to hs0...@gmail.com <mailto:hs0...@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 <mailto:Elecraft@mailman.qth.net> This list hosted by: http://www.qsl.net <http://www.qsl.net/> Please help support this email list: http://www.qsl.net/donate.html Message delivered to alor...@sbcglobal.net <mailto:alor...@sbcglobal.net> __ 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
Re: [Elecraft] K3 Apparent PA failure ?
Hi, Well I've been through all of the operational settings. CONFIG : TUN PWR is set to NOR and I can vary the power with the power control but the output meter display stays at 0.0 and the VSWR displays only - - . I had a settings save from about a month ago but uploading that hasn't changed anything. Since this affects both the 100 watt PA and the LPA I'm guessing the 100 watt PA is probably good and that the failure must be earlier on. My next test is to look at the XVTR output as I see that is taken off before both amplifiers to see if there is anything there. Martin, HS0ZED Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. Suggestions appreciated. Thanks Martin, HS0ZED __ 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 d...@nk7z.net __ 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 hs0...@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
Re: [Elecraft] K3 Apparent PA failure ?
That's what I would try next. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ Vic On 9 Apr 2018 20:18, Brian Hunt wrote: Do you have a saved CONFIG file you can reload? Maybe those data got garbled by the nonstandard shutdown? GL! Brian, K0DTJ On Apr 9, 2018, at 08:31, Martin Sole wrote: Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. __ 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
Re: [Elecraft] K3 Apparent PA failure ?
I tried that on my K3 and it will me dial it down to 00.1 - then it says 'nor'. At 00.1 mine shows 00.1 RF out in TUNE. - 73 and good DX de Mike, K6MKF, Past President - NCDXC > -Original Message- > From: elecraft-boun...@mailman.qth.net > On Behalf Of Tom > Sent: Monday, April 09, 2018 10:26 AM > To: Martin Sole ; k...@arrl.net > Cc: Elecraft Discussion List > Subject: Re: [Elecraft] K3 Apparent PA failure ? > > Hi, > Is it possible that menu "Tune PWR" is set to 0? > Tom > > -Original Message- > From: Martin Sole > Sent: Monday, April 9, 2018 12:35 PM > To: k...@arrl.net > Cc: Elecraft Discussion List > Subject: Re: [Elecraft] K3 Apparent PA failure ? > > I’m pressing TUNE. Mode VOX etc shouldn’t matter. > > Martin, HS0ZED > > > Sent from my iPad > > > On 9 Apr 2018, at 23:32, Dave Sublette wrote: > > > > Are you in CW mode? If so, is VOX enabled? > > > > K4TO > > > >> On Mon, Apr 9, 2018 at 12:20 PM, Martin Sole wrote: > >> Not in test mode :( > >> > >> I get the red TX led bit the display show 0w and - - where the VSWR > >> display would be when I press TUNE in TX NORM. > >> > >> Martin, HS0ZED > >> > >> > >> > >>> On 09/04/2018 22:56, Dave Cole (NK7Z) wrote: > >>> Press and hold the right side of the band-switch over "Test" and > >>> make sure you are not in test mode. > >>> > >>> You should see the words: > >>> > >>> "TX TEST" > >>> > >>> or > >>> > >>> "TX NORMAL" > >>> > >>> It should say "TX NORMAL". > >>> > >>> 73s and thanks, > >>> Dave > >>> NK7Z > >>> https://www.nk7z.net > >>> > >>>> On 04/09/2018 08:31 AM, Martin Sole wrote: > >>>> Hi, > >>>> > >>>> My K3 died today, somehow. The radio works fine on receive and > >>>> appears to transmit just there is no power indication on my > >>>> external meter or on the front panel when pressing TUNE. There is > >>>> ALC indication but no power out indication.The only thing I did > >>>> different was to switch off the supply before the radio, something > >>>> I normally never do. Having noted others having issues with that I > >>>> reloaded the firmware. Still no output. Starting to think that > >>>> somehow the PA is fried or possibly the driver as there is nothing > >>>> from the 10 watt PA either. Tried turning the power down and putting the > KPA3 into bypass. Still no power output. > >>>> Not sure what else to try before I tear into it. Was going great, > >>>> worked 3B7A on 3 bands today no problem. > >>>> > >>>> Suggestions appreciated. > >>>> > >>>> Thanks > >>>> Martin, HS0ZED > >>>> > >>>> > __ > >>>> 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 > >>>> d...@nk7z.net > >>> __ > >>> 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 > >>> hs0...@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 > >> k...@arrl.net > > > __ > Elecraft
Re: [Elecraft] K3 Apparent PA failure ?
Hi, Is it possible that menu "Tune PWR" is set to 0? Tom -Original Message- From: Martin Sole Sent: Monday, April 9, 2018 12:35 PM To: k...@arrl.net Cc: Elecraft Discussion List Subject: Re: [Elecraft] K3 Apparent PA failure ? I’m pressing TUNE. Mode VOX etc shouldn’t matter. Martin, HS0ZED Sent from my iPad On 9 Apr 2018, at 23:32, Dave Sublette wrote: Are you in CW mode? If so, is VOX enabled? K4TO On Mon, Apr 9, 2018 at 12:20 PM, Martin Sole wrote: Not in test mode :( I get the red TX led bit the display show 0w and - - where the VSWR display would be when I press TUNE in TX NORM. Martin, HS0ZED On 09/04/2018 22:56, Dave Cole (NK7Z) wrote: Press and hold the right side of the band-switch over "Test" and make sure you are not in test mode. You should see the words: "TX TEST" or "TX NORMAL" It should say "TX NORMAL". 73s and thanks, Dave NK7Z https://www.nk7z.net On 04/09/2018 08:31 AM, Martin Sole wrote: Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. Suggestions appreciated. Thanks Martin, HS0ZED __ 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 d...@nk7z.net __ 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 hs0...@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 k...@arrl.net __ 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 tom...@videotron.ca --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ 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
Re: [Elecraft] K3 Apparent PA failure ?
In TX TEST mode the “TX” symbol on the right end of the display will flash about once per second. No need to try turning it On to see if it’s on or not. Sent from my iPhone ...nr4c. bill > On Apr 9, 2018, at 11:56 AM, Dave Cole (NK7Z) wrote: > > Press and hold the right side of the band-switch over "Test" and make sure > you are not in test mode. > > You should see the words: > > "TX TEST" > > or > > "TX NORMAL" > > It should say "TX NORMAL". > > 73s and thanks, > Dave > NK7Z > https://www.nk7z.net > >> On 04/09/2018 08:31 AM, Martin Sole wrote: >> Hi, >> My K3 died today, somehow. The radio works fine on receive and appears to >> transmit just there is no power indication on my external meter or on the >> front panel when pressing TUNE. There is ALC indication but no power out >> indication.The only thing I did different was to switch off the supply >> before the radio, something I normally never do. Having noted others having >> issues with that I reloaded the firmware. Still no output. Starting to think >> that somehow the PA is fried or possibly the driver as there is nothing from >> the 10 watt PA either. Tried turning the power down and putting the KPA3 >> into bypass. Still no power output. Not sure what else to try before I tear >> into it. Was going great, worked 3B7A on 3 bands today no problem. >> Suggestions appreciated. >> Thanks >> Martin, HS0ZED >> __ >> 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 d...@nk7z.net > __ > 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 n...@widomaker.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
Re: [Elecraft] K3 Apparent PA failure ?
Do you have a saved CONFIG file you can reload? Maybe those data got garbled by the nonstandard shutdown? GL! Brian, K0DTJ > On Apr 9, 2018, at 08:31, Martin Sole wrote: > > Hi, > > My K3 died today, somehow. The radio works fine on receive and appears to > transmit just there is no power indication on my external meter or on the > front panel when pressing TUNE. There is ALC indication but no power out > indication.The only thing I did different was to switch off the supply before > the radio, something I normally never do. Having noted others having issues > with that I reloaded the firmware. Still no output. Starting to think that > somehow the PA is fried or possibly the driver as there is nothing from the > 10 watt PA either. Tried turning the power down and putting the KPA3 into > bypass. Still no power output. Not sure what else to try before I tear into > it. Was going great, worked 3B7A on 3 bands today no problem. > __ 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
Re: [Elecraft] K3 apparent PA failure
For what? Sent from my iPhone ...nr4c. bill > On Apr 9, 2018, at 1:07 PM, Roy Koeppe wrote: > > VOX needs be ‘ON.’ > > Roy K6XK > __ > 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 n...@widomaker.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
Re: [Elecraft] K3 apparent PA failure
VOX needs be ‘ON.’ Roy K6XK __ 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
Re: [Elecraft] K3 Apparent PA failure ?
I’m pressing TUNE. Mode VOX etc shouldn’t matter. Martin, HS0ZED Sent from my iPad > On 9 Apr 2018, at 23:32, Dave Sublette wrote: > > Are you in CW mode? If so, is VOX enabled? > > K4TO > >> On Mon, Apr 9, 2018 at 12:20 PM, Martin Sole wrote: >> Not in test mode :( >> >> I get the red TX led bit the display show 0w and - - where the VSWR display >> would be when I press TUNE in TX NORM. >> >> Martin, HS0ZED >> >> >> >>> On 09/04/2018 22:56, Dave Cole (NK7Z) wrote: >>> Press and hold the right side of the band-switch over "Test" and make sure >>> you are not in test mode. >>> >>> You should see the words: >>> >>> "TX TEST" >>> >>> or >>> >>> "TX NORMAL" >>> >>> It should say "TX NORMAL". >>> >>> 73s and thanks, >>> Dave >>> NK7Z >>> https://www.nk7z.net >>> On 04/09/2018 08:31 AM, Martin Sole wrote: Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. Suggestions appreciated. Thanks Martin, HS0ZED __ 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 d...@nk7z.net >>> __ >>> 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 hs0...@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 k...@arrl.net > __ 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
Re: [Elecraft] K3 Apparent PA failure ?
Are you in CW mode? If so, is VOX enabled? K4TO On Mon, Apr 9, 2018 at 12:20 PM, Martin Sole wrote: > Not in test mode :( > > I get the red TX led bit the display show 0w and - - where the VSWR > display would be when I press TUNE in TX NORM. > > Martin, HS0ZED > > > > On 09/04/2018 22:56, Dave Cole (NK7Z) wrote: > >> Press and hold the right side of the band-switch over "Test" and make >> sure you are not in test mode. >> >> You should see the words: >> >> "TX TEST" >> >> or >> >> "TX NORMAL" >> >> It should say "TX NORMAL". >> >> 73s and thanks, >> Dave >> NK7Z >> https://www.nk7z.net >> >> On 04/09/2018 08:31 AM, Martin Sole wrote: >> >>> Hi, >>> >>> My K3 died today, somehow. The radio works fine on receive and appears >>> to transmit just there is no power indication on my external meter or on >>> the front panel when pressing TUNE. There is ALC indication but no power >>> out indication.The only thing I did different was to switch off the supply >>> before the radio, something I normally never do. Having noted others having >>> issues with that I reloaded the firmware. Still no output. Starting to >>> think that somehow the PA is fried or possibly the driver as there is >>> nothing from the 10 watt PA either. Tried turning the power down and >>> putting the KPA3 into bypass. Still no power output. Not sure what else to >>> try before I tear into it. Was going great, worked 3B7A on 3 bands today no >>> problem. >>> >>> Suggestions appreciated. >>> >>> Thanks >>> Martin, HS0ZED >>> >>> __ >>> 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 d...@nk7z.net >>> >> __ >> 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 hs0...@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 k...@arrl.net > __ 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
Re: [Elecraft] K3 Apparent PA failure ?
Not in test mode :( I get the red TX led bit the display show 0w and - - where the VSWR display would be when I press TUNE in TX NORM. Martin, HS0ZED On 09/04/2018 22:56, Dave Cole (NK7Z) wrote: Press and hold the right side of the band-switch over "Test" and make sure you are not in test mode. You should see the words: "TX TEST" or "TX NORMAL" It should say "TX NORMAL". 73s and thanks, Dave NK7Z https://www.nk7z.net On 04/09/2018 08:31 AM, Martin Sole wrote: Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. Suggestions appreciated. Thanks Martin, HS0ZED __ 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 d...@nk7z.net __ 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 hs0...@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
Re: [Elecraft] K3 Apparent PA failure ?
Press and hold the right side of the band-switch over "Test" and make sure you are not in test mode. You should see the words: "TX TEST" or "TX NORMAL" It should say "TX NORMAL". 73s and thanks, Dave NK7Z https://www.nk7z.net On 04/09/2018 08:31 AM, Martin Sole wrote: Hi, My K3 died today, somehow. The radio works fine on receive and appears to transmit just there is no power indication on my external meter or on the front panel when pressing TUNE. There is ALC indication but no power out indication.The only thing I did different was to switch off the supply before the radio, something I normally never do. Having noted others having issues with that I reloaded the firmware. Still no output. Starting to think that somehow the PA is fried or possibly the driver as there is nothing from the 10 watt PA either. Tried turning the power down and putting the KPA3 into bypass. Still no power output. Not sure what else to try before I tear into it. Was going great, worked 3B7A on 3 bands today no problem. Suggestions appreciated. Thanks Martin, HS0ZED __ 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 d...@nk7z.net __ 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