TM 1–1520–238–T–3
15–4
Change 3
15–2 SIGNAL NAME:
CPG SAFE/ARM SW
MEMORY LOCATION: 001075
MEMORY DATA BIT(S):
12–13
(BINARY)
CONDITION:
If third digit displayed on HOD is 0 or 4=OFF
If third digit displayed on HOD is 2 or 6=SAFE
If third digit displayed on HOD is 3 or 7=ARM
SIGNAL FUNCTION:
Selects weapons system status.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION corresponds to selected switch position, go to paragraph 15–3.
FAIL: Location of fault: CPG FCP, wiring from CPG FCP to LH FAB MRTU Type I, LH FAB MRTU
Type I. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2).
15–3 SIGNAL NAME:
TADS POWER SWITCH
MEMORY LOCATION: 000436
MEMORY DATA BIT(S):
14–15
(BINARY)
CONDITION:
If second digit displayed on HOD is 0 or 1=OFF
If second digit displayed on HOD is 4 or 5=FLIR OFF
If second digit displayed on HOD is 6 or 7=TADS
SIGNAL FUNCTION:
Applies power to TADS.
REMARKS: From CPG FCP through CPG MRTU Type III to FCC.
PASS:
If CONDITION corresponds to selected switch position, go to paragraph 15–4.
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 9–1230–476–20–2).
15–4 SIGNAL NAME:
CPG SIGHT SEL SW
MEMORY LOCATION: 001074
MEMORY DATA BIT(S):
4–6
(OCTAL)
CONDITION:
If the fifth digit displayed on HOD is 0 or 1=HMD/TADS (Chapter 15,
paragraph 15–5)
If the fifth digit displayed on HOD is 2 or 3=TADS (Chapter 15, paragraph 15–5)
If the sixth digit displayed on HOD is 1=NVS (Chapter 10, paragraph 10–6)
If the sixth digit displayed on HOD is 1 and the fifth digit displayed on HOD is 2 or
3=HMD (Chapter 7, paragraph 7–56)
SIGNAL FUNCTION:
Indicates CPG selected sight sensor.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION displayed on HOD corresponds to CPG SIGHT SEL switch position, refer to
appropriate chapter and paragraph as listed under CONDITION.
FAIL: Location of fault: CPG FCP, wiring from CPG FCP to LH FAB MRTU Type I, LH FAB MRTU
Type I. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2).
