I have completed up to page 77 and can get one half of the bands to put out power. 80, 40, 17, and 15 meters will show power output on the internal watt meter. 30, 20, 12, and 10 meters will not show power output. Adjusting the variable inductors has no effect on wattage output. The PA transistors (Q7 and Q8) test good voltages. What appears faulty in the RF Board sheet of voltage measurements on page 17 are U4 pin 7 and U5 pin 1. These test 5 volts and are supposed to test 0 volts. Pins 7 and 1 are connected to each by looking at the pc board. Each of these pins is next to a pin on their IC containing 5 volts. Does this indicate that the problem may likely be a faulty IC? Q24 is testing about 75% of the specified at S & D pins while Q18 tests 0 at G instead of -1.0. I have removed low pass wound filter inductors for two nonfunctioning bands and reinstalled and this did not correct the problem on these bands. I would like to correct myself and not send away for repair. Your thoughts would be appreciated.
Thank you, Dale, kc9cwb _______________________________________________ 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 Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
