TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
marks, increase tilt angle using TILT
control
until
pattern
is
displayed
throughout the third range marks. Note
new position of TILT control. Verify that
tilt is no more than two degrees above
that noted in step (5).
(10)
If the terrain band shifts (in step 8) to the
left around the second range marks,
decrease tilt angle using TILT control
until pattern is displayed throughout the
third range marks. Note new position of
TILT control. Verify that tilt is no more
than two degrees below that noted in
step (5).
(11)
If the differences between steps (10)
and (5) or steps (9) and (5) are greater
than
two
degrees,
recalibrate
roll
stabilization circuitry to the gyro using
the following procedure:
a
Altitude - 10,000 feet AGL.
b
Range switches - Set range to 100
NM.
c
TILT control - Adjust until a solid
band of ground clutter is visible.
d
Radar receiver GAIN control - Pull
to select variable gain. Observe
VAR on radar display.
4-25
