TM 1–1520–238–T–3
16–8
16–23 SIGNAL NAME:
TGT INDEX SW
MEMORY LOCATION: 001074
MEMORY DATA BIT(S):
10–13
(HEX)
CONDITION:
If the fourth digit displayed on HOD is 6=9
If the fourth digit displayed on HOD is 7=8
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 0=7
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 1=6
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 2=5
If the fifth digit displayed on HOD is 1, 3, 5, or 7and the fourth digit
displayed is 3=4
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 4=3
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 5=2
If the fifth digit displayed on HOD is 1, 3, 5, or 7 and the fourth digit
displayed is 6=1
If the fifth digit displayed on HOD is 1, 3, 5, or 7and the fourth digit
displayed is 7=0
SIGNAL FUNCTION:
Specifies storage location of waypoint/targeting coordinate data.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION displayed on HOD corresponds to selected TGT INDEX switch position,
replace FCC (TM 9–1230–476–20–2).
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).
16–24 SIGNAL NAME:
MSL UPPER CODE SW
MEMORY LOCATION: 001074
MEMORY DATA BIT(S):
14–16
(OCTAL)
CONDITION:
If the second digit displayed on HOD is 0=H
If the second digit displayed on HOD is 1=G
If the second digit displayed on HOD is 2=F
If the second digit displayed on HOD is 3=E
If the second digit displayed on HOD is 4=D
If the second digit displayed on HOD is 5=C
If the second digit displayed on HOD is 6=B
If the second digit displayed on HOD is 7=A
SIGNAL FUNCTION:
Selects missile code of upper channel.
REMARKS: From CPG FCP through LH FAB MRTU Type I to FCC.
PASS:
If CONDITION displayed on HOD corresponds to selected MSL UPPER CODE switch
position, go to paragraph 16–25.
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).
