TM 1–1520–238–T–3
15–38
Change 4
15–160 SIGNAL NAME:
LASER TRIG 1ST DETENT TO TEU (ACY) LRFD TRIG 1ST CMD (ACZ)
MEMORY LOCATION: 001244
MEMORY DATA BIT(S):
14
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates firing of laser in 3–pulse burst mode.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If second digit on HOD is 4, 5, 6, or 7, go to paragraph 15–161.
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).
15–161 SIGNAL NAME:
LASER TRIG 2ND DETENTT (ACY) LRFD TRIG 2ND DTT (ACZ)
MEMORY LOCATION: 000414
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has pulled laser trigger to second detent.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If first digit on HOD is 2, 3, 6, or 7, go to paragraph 15–162.
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).
15–162 SIGNAL NAME:
LASER TRIG 2ND DETENT TO TEU (ACY) LRFD TRIG 2ND CMD (ACZ)
MEMORY LOCATION: 001244
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates firing of laser in designated mode.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If second digit on HOD is 2, 3, 6, or 7, go to paragraph 15–163.
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).
15–163 SIGNAL NAME:
IMPEND LASER INHIBIT (ACY) IMPEND LRFD INHB (ACZ)
MEMORY LOCATION: 001135
MEMORY DATA BIT(S):
8
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates TADS is approaching line of sight (LOS) inhibits.
REMARKS: From TEU through LH FAB MRTU Type I to FCC.
PASS:
If fourth digit on HOD is 1, 2, or 3, go to paragraph 15–165.
FAIL: Location of fault: go to paragraph 15–164.
15–164 SIGNAL NAME:
LASER INHIBIT (ACY) LRFD INHIBIT (ACZ)
MEMORY LOCATION: 001135
MEMORY DATA BIT(S):
7
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates LOS constraints are inhibiting TADS from firing.
REMARKS: From TEU through LH FAB MRTU Type I to FCC.
PASS:
If fifth digit on HOD is 2, 4, or 6, go to paragraph 15–165.
FAIL: Location of fault: troubleshoot laser transceiver (TM 1–1270–476–T).
