TM 1–1520–238–T–3
Change 4
8–225
8–851 SIGNAL NAME:
P4M1 BIT STATUS (ACY) P4M1 DISPLAY STATUS (ACZ)
MEMORY LOCATION: 001357
MEMORY DATA BIT(S):
12–15
(HEX)
CONDITION:
If third digit displayed on HOD is 0 and second digit displayed
on HOD is 0=NO MSL
If third digit displayed on HOD is 0 or 4 and second digit displayed
on HOD is 2 or 3=SELECTED
If third digit displayed on HOD is 0 or 4 and second digit displayed
on HOD is 4 or 5=READY
If third digit displayed on HOD is 0 or 4 and second digit displayed
on HOD is 6 or 7=TRACKING
If third digit displayed on HOD is 3 or 7 and second digit displayed
on HOD is 0=CODED
If third digit displayed on HOD is 3 or 7 and second digit displayed
on HOD is 6=CAGED
If third digit displayed on HOD is 5 or 1 and second digit displayed
on HOD is 0=BIT NO GO
If third digit displayed on HOD is 5 or 1 and second digit displayed
on HOD is 2=FAILED
If third digit displayed on HOD is 5 or 1 and second digit displayed
on HOD is 6=BATTERY NO GO
If third digit displayed on HOD is 6 or 2 and second digit displayed
on HOD is 0=UNLATCHED
If third digit displayed on HOD is 6 or 2 and second digit displayed
on HOD is 2=MRTU NO GO
If third digit displayed on HOD is 6 or 2 and second digit displayed
on HOD is 4=RAIL NO GO
SIGNAL FUNCTION:
Provides missile status display for operator.
REMARKS: From RHE to FCC for display.
PASS:
If CONDITION corresponds to selected message, go to failure symptom index and next failure
symptom paragraph.
FAIL: Location of fault: RHE, wiring from RHE to right outboard launcher, right outboard launcher.
Troubleshoot wiring to isolate fault (TM 9–1427–475–20).
8–852 SIGNAL NAME:
P4M1 UNLATCH INDICATE
MEMORY LOCATION: 001433
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates to RHE missile is unlatched.
REMARKS: From launcher to RHE.
PASS:
If first digit displayed on HOD is 0, 1, 4, or 5, go to paragraph 8–853.
FAIL: Location of fault: right outboard launcher, wiring from right outboard launcher to RHE, RHE.
Troubleshoot wiring to isolate fault (TM 9–1427–475–20).
8–853 SIGNAL NAME:
P4M1 UNLATCH INDICATE
MEMORY LOCATION: 002051
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates to operator when a missile is unlatched.
REMARKS: From launcher through right outboard MRTU Type II to FCC for display.
PASS:
If first digit displayed on HOD is 0, 1, 4, or 5, go to paragraph 8–854.
FAIL: Location of fault: right outboard launcher, wiring from right outboard launcher to right outboard
MRTU Type II, right outboard MRTU Type II. Troubleshoot wiring to isolate fault
(TM 9–1427–475–20).
