TB 9-4931-491-24
(4) If each 50 MHz marker does not fall within 0.2 cm of each cm line on
oscilloscope graticule line, perform b below.
Figure 3. Test instrument - top view.
b. Adjustments
NOTE
TI should be thoroughly stabilized by operating 1 hour before
the following adjustments are made. See figure 3 for location
of adjustments.
(1) Adjust M9H CENT BAND 1 control to position the 250 MHz marker at the
exact center of oscilloscope display (fig. 2) (R).
(2) Adjust M2H SWEEP WIDTH 1 to position the 0 frequency and the 500 MHz
marker as shown in figure 2. Compromise between 0 and 500 if necessary (R).
(3) Note the extreme left side of the oscilloscope display.
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