TM 1–1520–238–T–3
Change 4
15–49
15–212 SIGNAL NAME:
FLIR ZOOM (ACY) FLIR ZOOM CMD (ACZ)
MEMORY LOCATION: 000562
MEMORY DATA BIT(S):
12
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates selection of FLIR zoom.
REMARKS: From FCC through CPG MRTU Type III to TADS turret.
PASS:
If third digit on HOD is 0, 1, 4, or 5, go to paragraph 15–213.
FAIL: Location of fault: CPG MRTU Type III, wiring from CPG MRTU to TADS turret, wiring from
TADS turret to night sensor. Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–213 SIGNAL NAME:
ZFOV TO TEU (ACY) NFOV CMD (ACZ)
MEMORY LOCATION: 001245
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates ZFOV is selected.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
Location of fault if second digit on HOD is 2, 3, 6, or 7: troubleshoot DSA
(TM 1–1270–476–T).
FAIL: Location of fault: LH FAB MRTU Type I, wiring from LH FAB MRTU Type I to TEU, TEU.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–214 SIGNAL NAME:
ST SWITCH (ACY) STORE SW (ACZ)
MEMORY LOCATION: 000436
MEMORY DATA BIT(S):
9
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has pressed store target (ST) switch.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If fourth digit on HOD is 1, 4, or 5, go to paragraph 15–215.
FAIL: Location of fault: ORT, wiring from ORT to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–215 SIGNAL NAME:
ORT ST SW TO TEU (ACY) STORE SW TST (ACZ)
MEMORY LOCATION: 001252
MEMORY DATA BIT(S):
11
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates ST switch has been pressed.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
Location of fault if third digit on HOD is 4, 5, 6, or 7: troubleshoot TEU (TM 1–1270–476–T).
FAIL: Location of fault: LH FAB MRTU Type I, wiring from LH FAB MRTU Type I to TEU, TEU.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–216 SIGNAL NAME:
UPDT SWITCH (ACY) UPDATE SW (ACZ)
MEMORY LOCATION: 000436
MEMORY DATA BIT(S):
10
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has pressed target UPDT switch.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If fourth digit on HOD is 2, 4, or 6, go to paragraph 15–217.
FAIL: Location of fault: ORT, wiring from ORT to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
