I tried to align my K1-4 last night. TX output was low on the upper bands and I suspected alignment issues. I took out the ATU and put a wire jumper into filter board J2 pins 2 & 10. I then reconnected the RF board resistor R36 (one end was lifted as part of the ATU upgrade). I moved the RF board P3 jumper from "KAT1" to "K1". Are these the right steps to allow the K1 to work without the ATU? When I did the alignment, I noticed a couple of the trimmer caps in the middle (C1-4 & CA-D) were touchy (intermittent). I reheated the solder joints and was able to get all 4 bands aligned on RX and on TX where I got full power on all bands. Things looked good so I opened up R37, moved the P3 jumper, removed my temporary J2 jumper, and put the ATU back in. Output on 40 and 30 is nil and RX is weak. 20 & 15 are fine. It seems as though putting it back together somehow knocked it out of alignment. I'm thinking I should replace the touchy trimmer caps. Or maybe check for shorts between the ATU and the filter board. When I did the alignment the filter board was held down with only the center screw. Should I have mounted it fully? Thoughts? Suggestions? - Keith KD1E - _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft
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