TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
TEST 3
LOGIC TEST
NOTE
Perform preliminary procedure before
test. (Refer to TM 55-4920-430-13.)
31.
Set METER switch (6) to DC.
32.
Set METER RANGE switch (7) to 2V.
33.
Set CONTROL PANEL SIMULATION AFCS
switch (12) to SELECT.
34.
Set DISCRETE SIGNALS HYD PRESS switch
(13) to 1. DISCRETE MONITORS HYD SOL
lamp (14) shall be off and AFCS ANN lamp (15)
shall be on.
35.
Set DISCRETE SIGNALS VERT GYRO VALID
switch (16) to 1.
36.
Set METER RANGE switch (7) to 200V. AFCS
ANN lamp (15) shall be off, HYD SOL lamp (14)
shall be on, and DASH DRIVE lamp (17) shall
be blinking.
37.
Set HYD PRESS switch (13) to 0.
38.
Set METER RANGE switch (7) to 20V. AFCS
ANN lamp (15) shall be on.
39.
Set VERT GYRO VALID switch (16) to 0.
40.
Set CONTROL PANEL SIMULATION AFCS
SELECT switch (12) to OFF.
41.
Set CIRCUIT SELECT TENS switch (8) to 20.
42.
Set CIRCUIT SELECT WB SELECT switch (9)
to A. Read AC/DC VOLTMETER (10). Reading
shall be -6.5 TO -7.5.
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