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c. Transponder – Test | Up
TM-1-1520-238-MTF Maintenance Test Flight Manual Helicopter Attack
AH-64A Apache | Next
20. Anti-ice systems |
TM 1-1520-238-MTF
2-24
PROCEDURE
TROUBLESHOOTING
REFERENCE
AFTER STARTING APU (CONT)
(9) Repeat steps (5), (6), and (7)
above.
(10) ANT switch – DIV.
(11) Repeat steps (5), (6), and (7)
above.
(12) MODE 4 rotary switch – A. If an
external computer is used, set
a code in it.
(13) MODE 4 AUDIO/LIGHT/ OUT
switch – OUT.
(14) MODE 4 TEST/ON/OUT switch
– Hold in TEST position.
(15) Computer installed – TEST-GO
indicator lights. Computer not
installed – TEST MON NO-GO
indicator lights and KIT status
lights.
(16) MODE 4 TEST/ON/OUT switch
– ON with a computer, and
OUT without a computer.
(17) MASTER rotary switch – STBY.
d. Communication radios – Test as
required.
*e. Doppler Navigation Set – On. Test
and set as required.
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