Dear All, I am assembling my K2 (#5286) and am stuck at the PLL reference oscillator range test.
In the frequency counter mode with the probe attached to TP3, I get a reading of about 12085 kHz. However, most of the time, the reading is unresponsive to the BAND+ and BAND- switches and the voltage on U6 pin 1,2, & 3 is 0. The BAND switches work fine in other modes. Occasionally the BAND switches do respond and the frequency reads up to 12093.8 kHz with the voltages on U6 pin 1, 2, & 3 being 4.38, 2.38, 2.38 volts respectively. I have been checking the soldering around U6, U5, Q19, D16, D17, and around the area. Any ideas of where to focus the search? Thanks very much, 73 Mike (KC2FJS) _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
