TM 1–1520–238–T–3
Change 4
14–17
14–63 SIGNAL NAME:
CPG OPEN HDG CUE CONT (ACY) CPG HDGCUE1 CTL (ACZ)
MEMORY LOCATION: 000661
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates CPG open heading cue.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–64.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–64 SIGNAL NAME:
CPG OPEN HDG CUE (ACY) CPG HDGCUE1 (ACZ)
MEMORY LOCATION: 000661
MEMORY DATA BIT(S):
4–15
(SCALAR)
CONDITION:
Displays pilot heading cue on HOD. Monitor HOD; memory location should indicate
negative for 180 to 360 degrees and positive for 000 to 180 degrees.
SIGNAL FUNCTION:
Indicates pilot desired heading.
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).
14–65 SIGNAL NAME:
CPG I BEAM CONT
MEMORY LOCATION: 000664
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates I beam when rockets are selected.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–66.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–66 SIGNAL NAME:
CPG I BEAM TYPE
MEMORY DATA BIT(S):
000664
MEMORY LOCATION: 18
(BINARY)
CONDITION:
If the first digit displayed on HOD is 0, 1, 4, or 5=SOLID
If the first digit displayed on HOD is 2, 3, 6, or 7=OPEN
SIGNAL FUNCTION:
Indicates when I beam is within constraints.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION corresponds to I beam, go to paragraph 14–67
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–67 SIGNAL NAME:
CPG I BEAM AZ
MEMORY LOCATION: 000664
MEMORY DATA BIT(S):
4–15
(SCALAR)
CONDITION:
Displays CPG I beam azimuth on HOD when rockets are selected on HOD. Monitor
HOD; memory location should indicate negative for left and positive for right.
SIGNAL FUNCTION:
Displays azimuth I beam reference for rockets.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION is met, go to paragraph 14–68.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
