TM 1–1520–238–T–3
10–6
Change 4
10–17 SIGNAL NAME:
ORT PNVS VIDEO SELECT (ACY) PNVS VIDEO SW TST (ACZ)
MEMORY LOCATION: 001252
MEMORY DATA BIT(S):
4
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates CPG has selected PNVS video.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If sixth digit on HOD is 1, go to paragraph 10–18.
FAIL: Location of fault: ORT, wiring from ORT to FCC, 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).
10–18 SIGNAL NAME:
PLT FCP LEVEL ADJ
MEMORY LOCATION: 001077
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD while increasing level; memory location response should increase when
level is increased and decrease when level is decreased.
SIGNAL FUNCTION:
Adjusts forward looking infrared radar (FLIR) video.
REMARKS: From pilot fire control panel (FCP) through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION has been met, go to paragraph 10–19.
FAIL: Location of fault: pilot FCP, wiring from pilot FCP to LH FAB MRTU Type I, LH FAB MRTU Type
I. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2).
10–19 SIGNAL NAME:
PLT FCP GAIN ADJ
MEMORY LOCATION: 001100
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD while increasing gain; memory location response should increase when
gain is increased and decrease when gain is decreased.
SIGNAL FUNCTION:
Adjusts FLIR gain.
REMARKS: From pilot FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION has been met, go to paragraph 10–20.
FAIL: Location of fault: pilot FCP, wiring from pilot FCP to LH FAB MRTU Type I, LH FAB MRTU Type
I. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2).
10–20 SIGNAL NAME:
PLT FCP BRIGHT ADJ
MEMORY LOCATION: 001103
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD while increasing brightness; memory location response should increase
when brightness is increased and decrease when when brightness is decreased.
SIGNAL FUNCTION:
Adjusts video.
REMARKS: From pilot FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION has been met, go to paragraph 10–21.
FAIL: Location of fault: pilot FCP, wiring from pilot FCP to LH FAB MRTU Type I, LH FAB MRTU Type
I. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2).
