TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
631.
Set ANALOG SIGNALS ATT synchro (38) to 0.0º.
632.
Set ANALOG SIGNALS ATT SELECT switch
(37) to HDG.
633.
Set CIRCUIT SELECT A UNITS switch (18) to 1.
634.
Set NORM ACCEL J2-52 switch (65) to GND.
635.
Set RESPONSE TEST MODE switch (43) to ON.
636.
Set CONTROL PANEL SIMULATION RADAR
switch (24) to ENGAGE. ENGAGE lamp (66)
shall come on.
637.
Set DISCRETE SIGNALS ALT VALID switch (21)
to 1.
638.
Set RESPONSE TEST TIME DELAY-SEC
switches (40) to 0.2.
639.
Set ANALOG SIGNALS RAD ALT switches (63)
to 1. Wait 3 minutes. Read and record V9
AC/DC VOLTMETER (10) reading.
640.
Set RESPONSE TEST STIM switch (44) to
APPLY. When HOLD lamp (45) comes on, read
and record V10 AC/DC VOLTMETER reading.
641.
Calculate V11. Subtract reading of step 639 from
reading of step 640 (V11 = V10 - V9). Result
shall be -3.32 to -4.98.
642.
Set RESPONSE TEST STIM switch (44) to
REMOVE.
643.
Set RESPONSE TEST mode switch (43) to OFF.
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