P3 +12V mod for K3
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Did two of these today. One had a subrx. One did not.
Instructions didn't mention that the subrx aux cable interferes with pulling the K3's amp module. At least I was concerned about bending amp connector pins if it were tried. Ended up also removing the I/O board and pulling out the cable from the subrx. There is perhaps a better way. Not a big deal but extra work. 73 de Brian/K3KO ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2176 / Virus Database: 2425/5007 - Release Date: 05/18/12 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Brian,
I did one for a friend a couple weeks ago - yes, I found the same thing, but decided to leave the cable in place and work around it (no bent pins) - it did work, but it was "touch and go" for a while. Yes, the manual should mention it - and I agree, the easiest way to remove that cable from the SubRX is to get the I/O board out of the way, although it is possible to remove the cable with the KIO3 in place - but plugging the cable back in with the KIO3 in place is a bit of a challenge (but not impossible if you hold the connector with pliers carefully). 73, Don W3FPR On 5/18/2012 3:28 PM, Brian Alsop wrote: > Did two of these today. One had a subrx. One did not. > > Instructions didn't mention that the subrx aux cable interferes with > pulling the K3's amp module. At least I was concerned about bending amp > connector pins if it were tried. > > Ended up also removing the I/O board and pulling out the cable from the > subrx. There is perhaps a better way. > > Not a big deal but extra work. > > 73 de Brian/K3KO > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2176 / Virus Database: 2425/5007 - Release Date: 05/18/12 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by alsopb
Brian,
I was able to do my K3 (which has just about everything in it) by simply removing the back bottom cover, the rear fan plate and the ATU. I left everything else installed. Since mine also has a K144XV, I simply let fan plate carefully dangle while I pulled the old components out and inserted new the replacements. Although a vacuum desolder station was available to me, I just used SolderWik. There are probably 6 different ways to do this, I'll pass your findings on to our tech writer. Thanks and 73, Paul
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Everyone probably already knows this, but if the solder doesn't wick easily out of the
hole, add a little fresh solder first. This made all the difference with the board in the K3. On 5/18/2012 1:59 PM, Paul Saffren N6HZ wrote: > Although a vacuum desolder station was available to > me, I just used SolderWik. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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De-soldering has many possible facets, and which one you use will depend
on your experience, tools available and to a certain extent the amount of "stubbornness" you want to tolerate. Each connection is different. I routinely use a Hakko 808 desoldering iron, but there are times when a slender tool (narrow tipped long screwdriver) will do a good job of prying the component up off the board, and the 2nd lead can easily be removed - for multi-legged components that process can be much complex. On 5/18/2012 5:07 PM, Vic K2VCO wrote: > Everyone probably already knows this, but if the solder doesn't wick easily out of the > hole, add a little fresh solder first. This made all the difference with the board in the K3. > > On 5/18/2012 1:59 PM, Paul Saffren N6HZ wrote: >> Although a vacuum desolder station was available to >> me, I just used SolderWik. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by alsopb
Did the +12V mod to my K3 with Sub RX yesterday.
As you say the instructions did not mention the Aux cable, however I found that moving the cable to the rear of the K3 and then extracting the PA towards the front was no problem. Just needed to take care. 73 Stewart G3RXQ On Fri, 18 May 2012 19:28:51 +0000, Brian Alsop wrote: > Did two of these today. One had a subrx. One did not. > > Instructions didn't mention that the subrx aux cable interferes with > pulling the K3's amp module. At least I was concerned about bending amp > connector pins if it were tried. > > Ended up also removing the I/O board and pulling out the cable from the > subrx. There is perhaps a better way. > > Not a big deal but extra work. > > 73 de Brian/K3KO > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2176 / Virus Database: 2425/5007 - Release Date: 05/18/12 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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