TM 1–1520–238–T–3
Change 4
15–13
15–44 SIGNAL NAME:
ORT IHADSS BRT ADJ (ACY) CPG BRT ADJ (ACZ)
MEMORY LOCATION: 000431
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD while increasing brightness; memory location response should increase
when brightness is increased and decrease when brightness is decreased.
SIGNAL FUNCTION:
Adjusts IHADSS brightness.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If CONDITION is met, go to paragraph 15–45.
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).
15–45 SIGNAL NAME:
ORT SYM BRT ADJ (ACY) CPG SYM BRT ADJ (ACZ)
MEMORY LOCATION: 000433
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD while increasing ORT symbology brightness; memory location response
should increase when brightness is increased and decrease when brightness is
decreased.
SIGNAL FUNCTION:
Adjusts output of SYM BRT control.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If CONDITION is met, go to paragraph 15–46.
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).
15–46 SIGNAL NAME:
ORT GAIN ADJ (ACY) CPG GAIN ADJ (ACZ)
MEMORY LOCATION: 000435
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(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 output of FLIR GAIN control.
REMARKS: From ORT through CPG MRTU Type III to FCC.
PASS:
If CONDITION is met, go to paragraph 15–47.
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).
15–47 SIGNAL NAME:
ORT GAIN ADJ TO TEU (ACY) CPG GAIN ADJ TST (ACZ)
MEMORY LOCATION: 001254
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD while increasing gain; memory location response should increase when
gain is increased and decrease when gain is decreased.
SIGNAL FUNCTION:
Used during FD/LS.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If CONDITION is met, go to paragraph 15–48.
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).
