TM 1–1520–238–T–3
8–308
Change 4
8–1173 SIGNAL NAME:
ORT WEAPON TRIGGER 1ST DETENT
MEMORY LOCATION: 000414
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has actioned ORT trigger to first detent.
REMARKS: From ORT to CPG FCP through CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 2, 3, 6, or 7, go to paragraph 8–1174.
FAIL: Location of fault: ORT, wiring from ORT to CPG FCP, CPG FCP, wiring from CPG FCP to CPG
MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault (TM 9–1427–475–20).
8–1174 SIGNAL NAME:
MSL FIRE OVERRIDE COMMAND
MEMORY LOCATION: 001440
MEMORY DATA BIT(S):
5
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Commands RHE to launch without regards to seeker gimbal angle constraints.
REMARKS: From second detent to RHE.
PASS:
If fifth digit on HOD is 0, 1, 2, or 3, go to paragraph 8–1175.
FAIL: Location of fault: replace RHE (TM 9–1427–475–20).
8–1175 SIGNAL NAME:
MSL FIRE INHIBIT COMMAND
MEMORY LOCATION: 001440
MEMORY DATA BIT(S):
4
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Commands RHE to inhibit launch under any circumstances (safety
constraints).
REMARKS: From FCC to RHE.
PASS:
If sixth digit on HOD is 0, 2, 4, or 6, go to paragraph 8–1176.
FAIL: Location of fault: replace RHE (TM 9–1427–475–20).
8–1176 SIGNAL NAME:
ORT WEAPON TRIGGER 2ND DETENT
MEMORY LOCATION: 000414
MEMORY DATA BIT(S):
16
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has actioned ORT trigger to second detent.
REMARKS: From ORT to CPG FCP through CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 1, 3, 5, or 7, go to paragraph 8–1177.
FAIL: Location of fault: ORT, wiring from ORT to CPG FCP, CPG FCP, wiring from CPG FCP to CPG
MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault (TM 9–1427–475–20).
8–1177 SIGNAL NAME:
CPG TRIGGER 1ST DETENT
MEMORY LOCATION: 000436
MEMORY DATA BIT(S):
12
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has actioned trigger to first detent.
REMARKS: From CPG cyclic to CPG FCP through CPG MRTU Type III to FCC.
PASS:
If third digit on HOD is 2, 3, 6, or 7, go to paragraph 8–1178.
FAIL: Location of fault: CPG cyclic, wiring from CPG cyclic to CPG FCP, CPG FCP, wiring from CPG
FCP to CPG MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault
(TM 9–1427–475–20).
