The only path through the KFL1-2 that is not in common use for both bands is the pre-mixer bandpass filter connections at P1/J6, where band 1 path goes through pin 1 and band 2 path goes through pin 2. This suggests that you need to check the RF board from J6-pin 2 back to U7 pin 5, including the pin on the SA602 that is plugged in at the socket. However, this path being open should also have degraded band 2 reception as well as transmission, though perhaps not asy markedly.
Mike / KK5F -----Original Message----- >From: AF6NI <astro_cr...@hotmail.com> >Sent: Jun 9, 2012 2:05 PM >To: elecraft@mailman.qth.net >Subject: [Elecraft] K1 no power out B2 > >I just completed assembling a K1. It works fine on receive and transmits >properly on B1 but not on B2. > >I have two 2 band filter boards, a 40/20 that I've had for a while and a >30/17 that I just built. Both work the same in the K1. I have full power on >B1, but nothing on B2. The display shows 0.1 watts but my Elecraft W1 >wattmeter shows no output. As I said above, receive seems OK on both B1 and >B2. > >Any suggestions gratefully accepted! > >Thanks and 73. >Joe > >-- >View this message in context: >http://elecraft.365791.n2.nabble.com/K1-no-power-out-B2-tp7557347.html >Sent from the Elecraft mailing list archive at Nabble.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 ______________________________________________________________ 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
