Rich, I assume this is a 2 band filter board.
Either the KFL1-2 board firmware (U1) is not working, or the 6R/AUX signal is not getting the the filter board U1 pin 13, or there is a problem with the relay switching paths.
First check the resistance across each relay coil (pins 1 and 10) of each relay. Each relay should be about the same. Then check the soldering on the header for RF Board J7 - re-flow the solder with a hot (750 degF) iron.
Be certain the filter board R1 is 100 ohms and well soldered. 73, Don W3FPR On 6/22/2013 7:40 AM, Richard Crispi wrote:
Hi, I'm in the process of building K1 #3224 and all was going well until this evening. I'm at the point in Chap. 7 Alignment and Test, Part 1 "Band-Pass Filter Alignment" (pg. 40). I was able to align B1 (40 meters) but when I attempted to start B2 (30 meters) I realized that the relays were not switching and I could still hear the 40 meter signals although the frequency display showed the 30 meter frequency. Everything else up to this point seems to be working fine but no relays are switching; not on power up or when I try to change bands.
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