TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
670.
Set ANALOG SIGNALS CCDA DEMOD switch
(68) to 2. Read and record V16 AC/DC
VOLTMETER (10) reading.
671.
Calculate V17. Subtract reading of step 669 from
reading of step 670 (V17 = V16 - V15). Result
shall be +0.55 to +0.65.
672.
Set RESPONSE TEST MODE switch (43) to ON.
673.
Set CONTROL PANEL SIMULATION RADAR
switch (24) to ENGAGE.
674.
Set DISCRETE SIGNALS ALT VALID switch (21)
to 1. Wait 60 seconds. Read and record V18
AC/DC VOLTMETER (10) reading.
675.
Set RESPONSE TEST TIME DELAY-SEC
switches (40) to 0.01.
676.
Set RESPONSE TEST STIM switch (44) to
APPLY. When HOLD lamp (45) comes on,
read and record V19 AC/DC VOLTMETER (10)
reading.
677.
Calculate V20. Subtract reading of step 674 from
reading of step 676 (V20 = V19 - V18). Result
shall be +1.86 to +2.79.
678.
Set RESPONSE TEST STIM switch (44) to
REMOVE.
679.
Set RESPONSE TEST TIME DELAY-SEC
switches (40) to 10.0. Wait 60 seconds. Read
and record V21 AC/DC VOLTMETER (10)
reading.
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