Dave, It would appear from those readings that either you have D6 or D7 installed backwards or that both the 8R and 8T voltage lines are active, and they should be mutually exclusive.
First check the diode orientation against the Parts Placement Diagram in the rear of your manual, and if these are correct, measure the sources of 8R and 8T at the collectors of Q1 (8T) and Q2 (8R) on the Control Board. If both are near 8 volts at the same time, you have a problem with the controlling circuit in the base of Q1. Let us know what you find and we can proceed from there. 73, Don W3FPR > -----Original Message----- > > I am not getting any significant signal input from the antenna > and the loss seems to be at D6. In trying to determine whether > D6 is at fault, I'm measuring 7.13 volts on the anode and 7.31 > volts on the cathode. The manual indicates they should be 8.0 > and 7.5 volts respectively. On D7, I'm measuring 7.94 volts on > the anode and 7.31 volts on the cathode. The manual indicates > 0.0 (error?) and 7.5 volts respectively. Before I blame D6 for > the loss of signal, is there something else going on here that > may be causing the problem? > > Thanks, > Dave > N7AF > _______________________________________________ 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
