TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM) (Continued)
11-277
384.
Calculate V14. Add reading of step 383 + 5.0
(V14 = V13 + 5.0). Record resultant voltage.
385.
Set DISCRETE SIGNAL SWIVEL LOCK switch
(31) to 1.
386.
Set RESPONSE TEST STIM switch (44) to
APPLY.
387.
Adjust ANALOG SIGNALS ATT synchro (38)
until AC/DC VOLTMETER (10) reads calculated
voltage V14 from step 384.
388.
Set RESPONSE TEST TIME DELAY-SEC
switches (40) to 0.24.
389.
Set DISCRETE SIGNALS CYCLIC BRAKE
switch (27) to 1. When RESPONSE TEST HOLD
lamp (45) comes on, read and record V15 AC/DC
VOLTMETER (10) reading.
390.
Calculate V16. Subtract reading of step 383 from
reading of step 389 (V16 = V15 - V13). Result
shall be +1.54 to +2.32 volts.
391.
Set RESPONSE TEST STIM switch (44) to
REMOVE.
392.
Set ANALOG SIGNALS ATT synchro (38) to 0.
393.
Set DISCRETE SIGNAL SWIVEL LOCK switch
(31) to 0.
394.
Set RESPONSE TEST MODE switch (43) to ON.
395.
Set ANALOG SIGNALS ROLL RATE switch (30)
to 4.
396.
Set RESPONSE TEST TIME DELAY-SEC
switches (40) to 4. Wait 20 seconds then
read and record V17 AC/DC VOLTMETER (10)
reading.
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