I think he means the KPA100. On 12/10/11 9:06 PM, Ron D'Eau Claire wrote: > This is a bit more invasive, but a few earlier KPA100 modules had a problem > with the interface connector to the main RF board that carriers the +13V to > the KPA500 itself. The pin corroded and heated and, in a few cases, burned. > I believe the current KPA500's have gold plated connectors. Of course, that > removed all power from the 100 watt amp. > > I'd remove the KPA500 module and inspect the connector. You can reach the > screws from the top (careful - don't drop the screws or lock washers - they > can be a chore to retrieve if you don't have a small magnet). Pull the > module off and look closely at the multipin connector to see if there's any > sign of overheating or discoloration. > > Ron AC7AC > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Mccormack > Sent: Saturday, December 10, 2011 4:07 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3/100 - High power problem > > Hi All, > > Many thanks - yes PA NOR was and remains enabled but 12 watts is still > maximum power available. > This K3/100 was delivering 100 watts before I commenced the CAL procedure - > the only reason I took the top cover off was to find the FL1 offset, so > nothing has been disturbed. > > I've run out of ideas.<G> > > 73, Ken ZL1AIH > > > > > --- On Sun, 11/12/11, Ron D'Eau Claire<r...@cobi.biz> wrote: > > From: Ron D'Eau Claire<r...@cobi.biz> > Subject: RE: [Elecraft] K3/100 - High power problem > To: "'Robert Mccormack'"<zl1...@xtra.co.nz>, elecraft@mailman.qth.net > Date: Sunday, 11, December, 2011, 11:44 AM > > Make sure the KPA100 option is installed and enabled. That sounds like it is > not (the basic K3 has a 10 watt transmitter). Suggest you look in the > Owner's manual and perform the procedures to enable and then test and > calibrate the KPA100. Likely that will point to the problem. > > Good luck! > > Ron AC7AC > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Mccormack > Sent: Saturday, December 10, 2011 2:09 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3/100 - High power problem > > While checking a K3/100 #4114 on behalf of SK estate, I find that the power > cannot be set higher than 12 watts. > Operation was normal until I commenced a CAL procedure to correct a 2kHz > difference between 'indicated' and transmitted frequency. > > Checked all the menu functions but can't find any reference to power > limitation - searched the archives but no luck. > > Any help is appreciated. > > 73, Ken ZL1AIH. > > > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net
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