TM 1–1520–238–T–3
Change 4
16–9
16–25 SIGNAL NAME:
LASER CODE SW (ACY) LRFD CODE SW (ACZ)
MEMORY LOCATION: 001074
MEMORY DATA BIT(S):
17–19
(OCTAL)
CONDITION:
If first digit displayed on HOD is 0=H
If first digit displayed on HOD is 1=G
If first digit displayed on HOD is 2=F
If first digit displayed on HOD is 3=E
If first digit displayed on HOD is 4=D
If first digit displayed on HOD is 5=C
If first digit displayed on HOD is 6=B
If first digit displayed on HOD is 7=A
SIGNAL FUNCTION:
Specifies alphabetical index code designator.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION displayed on HOD corresponds to selected LASER CODE switch position, go
to Chapter 8, 8–1150.
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).
16–26 SIGNAL NAME:
MSL LOWER QTY SW
MEMORY LOCATION: 001075
MEMORY DATA BIT(S):
4, 5
(BINARY)
CONDITION:
If the fifth digit displayed on HOD is 0, 1, 2, or 3=3
If the fifth digit displayed on HOD is 4, 5, 6, or 7=2
If the sixth digit displayed on HOD is 1 and the fifth digit displayed on HOD is
0, 1, 2, or 3=1
If the sixth digit displayed on HOD is 1 and the fifth digit displayed on HOD is
4, 5, 6, or7=0
SIGNAL FUNCTION:
Selects quantity of missiles coded on lower channel.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION corresponds to selected switch position, go to Chapter 8, 8–1147.
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).
16–27 SIGNAL NAME:
TADS BRSIT SW (ACY) TADS BST SW (ACZ)
MEMORY LOCATION: 001075
MEMORY DATA BIT(S):
6
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Enables TADS internal boresighting mode.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If fifth digit on HOD is 0, 1, 4, or 5, go to Chapter 15, 15–197.
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).
