I am in Part 2 Alignment and testing, pg 57; all tests have passed except theVCO test. I am reading a steady 0000 kHz. It is unlikely the freq probe is bad since the 4 Mhz osc and PLL ref osc tests passed. Is it possible U3 is bad? I also note L30 does not change R30 voltage which reads a steady 18 mV. Also, BFO test passed ok as well. Your help is appreciated. Thanks Chris W4CKH