TM 1–1520–238–T–3
Change 4
14–33
14–142 SIGNAL NAME:
PLT ACCEL CUE AZ
MEMORY LOCATION: 000724
MEMORY DATA BIT(S):
4–11
(SCALAR)
CONDITION:
Displays azimuth reference for acceleration circle. Monitor HOD; memory location
should indicate negative for left and positive for right.
SIGNAL FUNCTION:
Displays azimuth reference for acceleration circle relative to velocity vector.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION is met, go to paragraph 14–143.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–143 SIGNAL NAME:
PLT ACCEL CUE EL
MEMORY LOCATION: 000724
MEMORY DATA BIT(S):
12–19
(SCALAR)
CONDITION:
Displays elevation reference for acceleration circle. Monitor HOD; memory location
should indicate negative for down and positive for up.
SIGNAL FUNCTION:
Displays elevation reference for acceleration circle relative to velocity vector.
REMARKS: From FCC to symbol generator.
PASS:
Location of fault if CONDITION is met: replace symbol generator (TM 11–1520–238–23–2).
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–144 SIGNAL NAME:
PLT SOLID HDG CUE CTL (ACY) PLT HDGCUE 2 CTL (ACZ)
MEMORY LOCATION: 000725
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates pilot solid heading cue when TADS or IHADSS is selected CPG LOS.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–145.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–145 SIGNAL NAME:
PLT SOLID HDG CUE (ACY) PLT HDGCUE 2 (ACZ)
MEMORY LOCATION: 000725
MEMORY DATA BIT(S):
4–15
(SCALAR)
CONDITION:
Displays magnetic heading on VDU. Monitor HOD; memory location should indicate
negative for 180 to 360 degrees and positive for 000 to 180 degrees.
SIGNAL FUNCTION:
Indicates magnetic direction CPG sensor is pointing.
REMARKS: From FCC to symbol generator.
PASS:
Location of fault if CONDITION is met: replace symbol generator (TM 11–1520–238–23–2).
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–146 SIGNAL NAME:
PLT MSL BOX CTL
MEMORY LOCATION: 000726
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates pilot missile box.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–147.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
