Jim,
If you had the expected output at U12 pin 8, but less than expected at
U11 pin 1, then there is a problem between those two points. Look at
the schematic in conjunction with these troubleshooting steps to find
what lies between the two points - in this case, look in the lower right
I am using the procedures in a Rev C manual, Appendix E, Page 10-11 to
troubleshoot a dead receiver problem. All Rework Eliminators are
installed. Signal tracing through the PLL/VCO and Low-Pass Filter,
Bandpass Filter, and T-R Switch produced expected measurements. In the
Mixer, I.F. Amp, and
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