TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
TEST 8
LONGITUDINAL CYCLIC TRIM (LCT) TEST
NOTE
Perform preliminary procedure before
test. (Refer to TM 55-4920-430-13.)
574.
Set SERVO SIMULATION LCT switch (60) to
NORM.
575.
Set DISCRETE SIGNALS BOX IDENT switch
(61) to 0.
576.
Set POWER LCT switch (62) to ON.
577.
Set CIRCUIT SELECT TENS switch (8) to 50.
578.
Set CIRCUIT SELECT A UNITS switch (18) to 0.
579.
Set CIRCUIT SELECT A/B SELECT switch (9)
to A.
580.
Set ANALOG SIGNALS AIRSPEED switch (35)
to 6.
581.
Set METER switch (6) to DC.
582.
Set METER RANGE switch (7) to 20V. Wait
60 seconds. Read AC/DC VOLTMETER (10).
Reading shall be -3.77 to -5.10.
583.
Set CIRCUIT SELECT A UNITS switch (18) to 1.
584.
Set METER RANGE switch (7) to 2V. Read
AC/DC VOLTMETER (10). Reading shall be
-0.444 to -0.600.
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