TB 9-6625-2059-35
R30
VERT CTR
(4) Decrease FREQUENCY MHz switches from 130 500 0 to 120 500 0 in
increments of 001 000 0. If signal strength does not move 1 major division per increment
within 2 minor divisions, perform b (5) through (7) below.
(5) Adjust ANALY DISPR control fully ccw but not to detent.
(6) Set FREQUENCY MHz switches to 126 000 0. If signal strength peak is not
aligned with first vertical graticule line 2 minor divisions, perform b (8) below.
(7) Decrease FREQUENCY MHz switches from 126 000 0 to 125 000 0 in
increments of 000 100 0. If signal strength does not move 1 major division per increment
within 2 minor divisions, perform b (9) and (10) below.
(8) Set ANALY DISPR control to OFF.
b. Adjustments
(1) Adjust HORIZ CTR A4A2R62 (fig. 6) until peak of signal is centered on
centerline (R).
(2) Adjust HORIZ GAIN A4A2R65 (fig. 6) until end of trace is aligned with right
edge of bezel.
(3) Repeat (1) and (2) above until no further adjustments are required.
(4) Adjust MAX DISP A4A1R40 (fig. 1) until signal strength peak is aligned with
first vertical graticule line (R).
(5) Set FREQUENCY MHz switches to 120 500 0.
(6) Adjust MAX DISP A4A1R40 (fig. 1) until signal strength peak is aligned with
11th vertical graticule line (R).
(7) Repeat a (3) and (4) above and if required, adjust MAX DISP A4A1R40 (fig. 1)
for best in-tolerance condition.
25
