TM 1–1520–238–T–3
11–8
Change 4
11–22 SIGNAL NAME:
PYLN 4 STAT (ACY) P1 COM STAT (ACZ)
MEMORY LOCATION: 001434
MEMORY DATA BIT(S):
16
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Generates PYLON NO GO FD/LS message.
REMARKS: From FCC to RHE.
PASS:
If second digit on HOD is 0, 2, 4, or 6, go to paragraph 11–27.
FAIL: Location of fault: replace RHE (TM 9–1427–475–20).
11–23 SIGNAL NAME:
CPG RKT NORM
MEMORY LOCATION: 000437
MEMORY DATA BIT(S):
16
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG ROCKET switch is set to NORMAL position.
REMARKS: From CPG FCP through CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 1, 3, 5, or 7, go to paragraph 11–24.
FAIL: Location of fault: CPG FCP, wiring from CPG FCP to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
11–24 SIGNAL NAME:
TADS RKT ACT (ACY) ORT RKT ACT (ACZ)
MEMORY LOCATION: 001555
MEMORY DATA BIT(S):
14
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates rocket action from optical relay tube (ORT) left handgrip.
REMARKS: From ORT left handgrip through RH FAB MRTU Type I to FCC.
PASS:
If second digit on HOD is 4, 5, 6, or 7, go to paragraph 11–25.
FAIL: Location of fault: ORT left handgrip, wiring from ORT to CPG FCP, wiring from CPG FCP to RH
FAB MRTU Type I, RH FAB MRTU Type I, wiring from external stores elevation controller to
CPG FCP. Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
11–25 SIGNAL NAME:
CPG RKT ACT
MEMORY LOCATION: 000437
MEMORY DATA BIT(S):
14
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG rocket action.
REMARKS: From CPG FCP through CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 4, 5, 6, or 7, go to paragraph 11–26.
FAIL: Location of fault: CPG cyclic stick weapons action switch, wiring from CPG cyclic stick weapons
action switch to CPG FCP, CPG FCP, wiring from CPG FCP to CPG MRTU Type III, CPG
MRTU Type III. Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
11–26 SIGNAL NAME:
CPG RKT GRND STOW
MEMORY LOCATION: 000437
MEMORY DATA BIT(S):
13
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG ROCKET switch is set to GROUND STOW position.
REMARKS: From CPG FCP through CPG MRTU Type III to FCC.
PASS:
If third digit on HOD is 1, 3, 5, or 7, go to paragraph 11–29.
FAIL: Location of fault: CPG FCP, wiring from CPG FCP to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
