TM 55-1520-240-23-9
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AFCS INTERFACE TEST
(Continued)
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TEST 21
ROLL BEEP TRIM TEST (BOTH)
137.
Set AFCS SYSTEM SEL switch (1) to 1 or 2.
(System under test.)
138.
Set METER SOURCE switch (3) to DISCRETE
MON.
139.
Set DISCRETE SIGNAL MONITOR switch (34)
to SEL 2.
140.
Set SIGNAL SEL 2 switch (35) to L ROLL BEEP
TRIM ON. STATUS B light (39) shall come on.
141.
Press beep trim switch (53) to left. Stick (32)
shall not move left. Read digital display (6).
Reading shall be +12.0 to +16.0 VAC. STATUS
A light (37) shall come on. Release switch.
142.
Set SIGNAL SEL 2 switch (35) to R ROLL BEEP
TRIM ON. STATUS B light (39) shall be on.
143.
Press switch (53) right. Stick (32) shall not move
right. Read digital display (6). Reading shall be
+12.0 to +16.0 VAC. Release switch. STATUS A
light (37) shall come on.
END ROLL BEEP TRIM TEST (BOTH)
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