TM 55-1520-240-23-9
11-280
AFCS INTERFACE TEST
(Continued)
11-280
TEST 29
AFCS HEADING ENGAGE TEST (NO. 1)
179.
Set AFCS SYSTEM SEL switch (1) to 1. (System
under test.)
180.
Set METER SOURCE switch (3) to DISCRETE
MON.
181.
Set DISCRETE SIGNAL MONITOR switch (34)
to SEL 1.
182.
Set SIGNAL SEL 1 switch (54) to HDG ENGAGE
ON.
183.
Set HDG SEL ENABLE switch (63) to ON.
184.
Press HDG ENGAGED switch (64). STATUS A
light (37) shall come on. Read digital display (6).
Reading shall be +11.0 to +13.0 VDC.
185.
Set HDG SEL ENABLE switch (63) to OFF. HDG
ENGAGED switch (64) shall disengage.
END AFCS HEADING ENGAGE TEST (NO. 1)
11-1202
