TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
268.
Calculate XRP. Add readings of steps 265 and
259 and divide by 24, (XRP = V12 +V11) ÷ 24.
Calculation shall be 0.018 to 0.056.
269.
Set DISCRETE SIGNALS CYCLIC BRAKE
switch (27) to 1 momentarily and then to 0.
270.
SEt RESPONSE TEST MODE switch (43) to
OFF.
271.
Set ANALOG SIGNAL XFEED ROLL ATT switch
(53) to 2.
272.
Set DISCRETE SIGNALS DETENT ROLL switch
(28) to 1.
273.
Set METER RANGE switch (7) to 2V.
274.
Set ANALOG SIGNALS ATT synchro (38) to
70.0º. Read AC/DC VOLTMETER (10). Reading
shall be -0.015 to +0.015.
275.
Set ANALOG SIGNALS ATT synchro (38)
to 290.0º. Read AC/DC VOLTMETER (10).
Reading shall be -0.015 to +0.015.
276.
Set ANALOG SIGNALS ATT synchro (38) to 0.0º.
277.
Set DISCRETE SIGNALS DETENT ROLL switch
(28) to 0.
278.
Set METER RANGE switch (7) to 20V.
279.
Set CIRCUIT SELECT TENS switch (8) to 10.
280.
Set CIRCUIT SELECT A UNITS switch (18) to 4.
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