TM 55-1520-240-23-9
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BENCH TEST AFCS CONTROL PANEL (AVIM)
(Continued)
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TEST 4
HEADING TEST
NOTE
Perform preliminary procedure before
test. (Refer to TM 55-4920-430-13.)
46.
Set TESTER POWER switch (1) to ON. The
following lamps shall be on:
a.
115V 400 HZ lamp (2).
b.
+28VDC lamp (3).
c.
+5VDC lamp (4).
d.
+15VDC lamp (5).
e.
-15VDC lamp (6).
47.
Set AFCS POWER switches (7 and 8) to ON.
The following lamps shall be on:
a.
115V 400 HZ lamp (9).
b.
+28VDC lamp (10).
c.
+5VAC lamp (11).
48.
Set AFCS SYSTEMS SEL switch (17) to 1.
49.
Set DISCRETE SIGNALS HDG switch (24) to 1.
50.
Press HDG ENGAGED switch (25). Switch lamp
shall be on.
51.
Set CONTINUITY TEST TENS switch (20) to 00.
52.
Set CONTINUITY TEST UNITS switch (21) to 4.
Lamp (22) shall be on.
53.
Set CONTINUITY TEST UNITS switch (21) to 5.
Lamp (22) shall be on.
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