TM 1–1520–238–T–3
Change 4
12–15
12–44 SIGNAL NAME:
STA DIR 4 STATUS
MEMORY LOCATION: 001160
MEMORY DATA BIT(S):
9
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of station director 4 (pylon 4).
REMARKS: From station director 4 through RCP through LH FAB MRTU Type I to FCC.
PASS:
If fourth digit displayed on HOD is 2, 3, 6, or 7, go to paragraph 12–45.
FAIL: Location of fault: station director 4, wiring from station director 4 to RCP, RCP, wiring from RCP
to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
12–45 SIGNAL NAME:
P4 POLLED AND ROCKET PRESENT (ACY) STD4 RESP ECHO (ACZ)
MEMORY LOCATION: 001263
MEMORY DATA BIT(S):
8
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays number of rockets remaining in each zone.
REMARKS: From FCC through LH FAB MRTU Type I to RCP.
PASS:
If the fourth digit displayed on HOD is 4, 5, 6, or 7, go to paragraph 12–46.
FAIL: Location of fault: LH FAB MRTU Type I, wiring from LH FAB MRTU Type I to RCP, RCP.
Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
12–46 SIGNAL NAME:
STA DIR 4 RKT POLL (ACY) STD3 RESPONSE (ACZ)
MEMORY LOCATION: 002035
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD; movement of the pylons down should show a decreasing negative
number (1 in the sixth digit) and movement of the pylons up should show a positive
increasing number (0 in the sixth digit)
SIGNAL FUNCTION:
Monitors pylon 4 position.
REMARKS: From station director through RH OUTBD MRTU Type II to RCP.
PASS:
Location of fault if condition is met: pylon actuator controller, wiring from pylon actuator
controller to pylon actuator, pylon actuator. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
FAIL: Location of fault: station director 4, wiring from station director 4 to RH OUTBD MRTU Type II,
RH OUTBD MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
12–47 SIGNAL NAME:
RKT ZONE ID
MEMORY LOCATION: 001162
MEMORY DATA BIT(S):
5–7
(OCTAL)
CONDITION:
If the fifth digit displayed on HOD is 1=A
If the fifth digit displayed on HOD is 2=B
If the fifth digit displayed on HOD is 3=C
If the fifth digit displayed on HOD is 4=D
If the fifth digit displayed on HOD is 5=E
SIGNAL FUNCTION:
Strobed signals displayed on HOD to identify specific rocket groups, by zone,
in each pod.
REMARKS: From RCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION corresponds to specific zone, go to paragraph 12–48.
FAIL: Location of fault: RCP, wiring from RCP to LH FAB MRTU Type I, LH FAB MRTU Type I.
Troubleshoot wiring to isolate fault (TM 9–1090–208–23–2).
