TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
446.
Set ANALOG SIGNALS ATT synchro (38) to 0.0º.
447.
Set METER RANGE switch (7) to 20V.
448.
Set SERVO SIMULATION ILCA SIMULATION
YAW switch (56) to RESET.
449.
Set DISCRETE SIGNALS HYD PRESS switch
(13) to 0.
450.
Set DISCRETE SIGNALS VERT GYRO VALID
switch (16) to 0.
451.
Set CONTROL PANEL SIMULATION AFCS
switch (12) to OFF.
452.
Set ANALOG SIGNALS AIRSPEED switch (35)
to 4.
453.
Set CIRCUIT SELECT A UNITS switch (18) to 0.
454.
Set ANALOG SIGNALS YAW RATE switch (30)
to 4.
455.
Set ANALOG SIGNALS SIDESLIP switch (55) to
2. Wait 60 seconds.
456.
Set METER switch (6) to DC. Read and record
V25 AC/DC VOLTMETER (10) reading.
457.
Set ANALOG SIGNALS AIRSPEED switch (35)
to 3. Wait 20 seconds.
NOTE
Start time measurement when
AIRSPEED switch is set.
458.
Set ANALOG SIGNALS AIRSPEED switch
(35) to 4. Measure time required for AC/DC
VOLTMETER (10) to read V25 reading of step
456. Time measurement shall be 3.5 to 9.5
seconds.
11-1110
