Figure 25. Preselector Drive - Adjustments and Test Point Locations.

TB 9-6625-2134-24

(319) Readjust FREQUENCY control to center 2.1 GHz marker, if needed.

(320) Connect TP1069 (fig. 25) to ground. Adjust R1064 (fig. 25) for maximum

response of 2.1 GHz marker.

(321) Remove lead from TP1069 (fig. 25) and press DEGAUSS pushbutton.

(322) Peak 2.1 GHz marker with R1049 (fig. 25) and disconnect CAL OUT from

RF INPUT.

(323) Connect microwave comb generator to REFERENCE INPUT and adjust

RF LEVEL control to -10 dBm.

(324) Adjust FREQUENCY control for a center frequency of 5.5 GHz and

center 5.5 GHz marker on crt.

(325) Press DEGAUSS pushbutton and recenter 5.5 GHz marker from microwave

(326) Peak 5.5 GHz marker with R1065 (fig. 25).