TM 11-5840-281-12-1
4-28. CIRCUIT ALINEMENT. (CONT)
PRECISION DISPLAY ADJUSTMENTS (CONT)
8.
On pulse generator, rotate ART ANGLE V control fully counterclockwise.
9.
On top deck of pulse generator, adjust PREC CENTER-VERT A2 control to position artificial sweep directly
under bottom grid line of navigational grid.
10.
On pulse generator, adjust ART ANGLE V control to indicate 300.
11.
On top deck of pulse generator, adjust EXP-AZ 300 control to position artificial sweep 118 inch below center grid
line of navigational grid.
12.
On pulse generator, place ANGLE VOLTS switch to EL position.
13.
On top deck of pulse generator, adjust PREC CENTER-VERT EL control to position artificial sweep 1/8 inch
above center grid line of navigational grid.
14.
On pulse generator, adjust ART ANGLE V control to Indicate 220.
15.
On top deck of pulse generator, adjust EXP-EL 100 control to position artificial sweep directly under top grid line
of navigational grid.
16.
On both pulse generators, place SCAN MODE switch to 350EL position.
17.
On pulse generator, adjust ART ANGLE V control to indicate 720.
18.
On top deck of pulse generator, adjust EXP-EL 350 control to position artificial sweep directly under top grid line
of navigational grid.
19.
On both pulse generators, place SCAN MODE switch to 600 AZ position.
20.
On pulse generator, place ANGLE VOLTS switch to AZ position and adjust ART ANGLE V control to indicate
300.
21.
On top deck of pulse generator, adjust EXP-AZ 600 control to position artificial sweep 118 inch below center grid
line of navigational grid.
22.
On pulse generator, place RANGE MILES switch to position 10. Adjust applicable PREC DELAY control so that
td range mark is just visible at start of sweep.
23.
On sweep generator card in pulse generator, adjust R4503 SWEEP GATE LENGTH control for
24.
On sweep generator card in pulse generator, adjust R21 5,10 PREC EXP control to position 10- mile range mark
112 inch from right edge of display.
25.
On pulse generator, place RANGE MILES switch to position 20.
26.
On sweep generator card in pulse generator, adjust R4503 SWEEP GATE LENGTH control for
27.
On sweep generator card in pulse generator, adjust R20 20, 40 PREC EXP control to position 20-mile range
mark 1/2 inch from right edge of display.
28.
On pulse generator, place ANGLE VOLTS switch to OPERATE position.
29.
On pulse generator, place RANGE MILES switch alternately to 5, 10, 20, and 40 positions and ensure sweep
length is adequate to display corresponding range marks. If sweep length is short in any range, adjust R3
SWEEP GATE LENGTH control on sweep generator card in pulse generator to obtain proper sweep length in
that range.
30.
On both pulse generators, place RANGE MILES switch to 10 position.
31.
On range mark generator card in pulse generator, adjust R4 1 MILE AMPL control for optimum 1- mile range
mark intensity.
32.
On range mark generator card in pulse generator, adjust R23 5 MILE AMPL control for optimum 5-mile range
mark intensity.
33.
Push pulse generator into control-indicator and secure with two captive head screws on front panel of pulse
generator.
4-86
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