Figure 45. CRT presentation.
NOTES: The main bang (video) will move towards the center of the
CRT when R1903 is adjusted.
R1903 is located inside the synchronizer-generator,
marker-electronic SN-386/FPN-40 on the timing control
card A1900 (Figure 41).
g. Rotate the PPI DELAY control (R1903) until the innermost edge
of the video return (main bang) just touches touchdown marker.
h. You have completed the PPI DELAY control adjustment. In doing
so, you have ensured the proper orientation of radar video in respect
to range.
Restore the radar set to its operating condition by
securing synchronizer-generator drawer SN-386/FPN-40.
44
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