TM 1–1520–238–T–3
7–15
7–53 SIGNAL NAME:
CPG BRSIT MODE
MEMORY LOCATION: 001571
MEMORY DATA BIT(S):
17
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Monitors CPG boresight mode.
REMARKS: From SEU through RH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 4, 5, 6, or 7, go to paragraph 7–54.
FAIL: Location of fault: SEU, wiring from SEU to RH FAB MRTU Type I, RH FAB MRTU Type I.
Troubleshoot wiring to isolate fault (TM 9–1270–221–23).
7–54 SIGNAL NAME:
CPG BRSIT REQD
MEMORY LOCATION: 001571
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG IHADSS BRSIT is required.
REMARKS: From SEU through RH FAB MRTU Type I to FCC.
PASS:
Location of fault if first digit on HOD is 2, 3, 6, or 7: wiring between CPG FCP and MRTU Type
III, CPG collective stick, and MRTU Type III. Troubleshoot wiring to isolate fault
(TM 9–1270–221–23).
FAIL: Location of fault: go to paragraph 7–57.
7–55 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 position of CPG SIGHT SEL switch.
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).
