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 TM 55-1510-218-MTF
TROUBLESHOOTING
PROCEDURE
REFERENCE
(c) If the pattern shifts to
the left around the
second range mark,
slowly adjust the
ROLL TRIM potenti-
ometer until the ter-
rain band is displayed
throughout the third
range marks. Usually
a counterclockwise
adjustment is re-
quired.
(d) If the pattern shifts
toward the center of
the second and third
range marks, there is
no roll stabilization.
(12) Ground mapping operat-
ing procedure: MODE
switch - MAP.
(13) Standby procedure: func-
tion switch - STBY.
(14) Shutdown procedure:
Function switch - OFF.
*20.
Weather radar and multifunction
display (650) - Check as follows:
a. Mode control - Off.
b. Gain control - Preset position.
c. Tilt control - +15 degrees.
d. Avionics master switch (over-
head control panel) - ON.
c. Mode control (MFD radar
control unit) - STBY.
4-43
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