TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM) (Continued)
11-277
333.
Set ANALOG SIGNALS ATT synchro (38) to 0.0 .
334.
Set ANALOG SIGNALS PITCH ATT HSI HDG
pot. (42) to 500.
335.
Set ANALOG SIGNALS GND SIGNAL switch
(41) to GND.
336.
Set ANALOG SIGNALS AIRSPEED switch (35)
to 2.
337.
Set CONTROL PANEL SIMULATION HEADING
switch (26) to DISENG.
338.
Set CONTROL PANEL SIMULATION AFCS
switch (12) to OFF.
339.
Set DISCRETE SIGNALS VERT GYRO VALID
switch (16) to 0.
340.
Set DISCRETE SIGNALS HYD PRESS switch
(13) to 0.
341.
Set ANALOG SIGNALS PITCH HSI switch (54)
to PITCH.
342.
Set ANALOG SIGNALS ATT SELECT switch
(37) to HDG.
343.
Set DISCRETE SIGNALS CYCLIC BRAKE
switch (27) to 1 momentarily and then to 0.
344.
Set METER RANGE switch (7) to 20V. Read and
record V24 reading on AC/DC VOLTMETER (10).
345.
Set ANALOG SIGNALS PULSER STIM switch
(49) to 4. Read and record V25 reading on
AC/DC VOLTMETER (10).
346.
Calculate V26. Subtract reading of step 344 from
reading of step 345 (V26 = V25 - V24). Result
shall be -4.04 to -4.65 volts.
347.
Set ANALOG SIGNALS PULSER STIM switch
(49) to 1.
END ROLL AXIS TEST
Change 1
11-1101
