TM 1–1520–238–T–3
14–30
14–127 SIGNAL NAME:
PLT FOV DOT AZ
MEMORY LOCATION: 000717
MEMORY DATA BIT(S):
4–10
(SCALAR)
CONDITION:
Displays IHADSS azimuth reference. Monitor HOD; memory location should indicate
negative for left and positive for right.
SIGNAL FUNCTION:
Displays coarse cued LOS symbol in IHADSS FOV azimuth reference.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION is met, go to paragraph 14–128.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–128 SIGNAL NAME:
PLT FOV DOT EL
MEMORY LOCATION: 000717
MEMORY DATA BIT(S):
11–16
(SCALAR)
CONDITION:
Displays IHADSS elevation reference. Monitor HOD; memory location should indicate
negative for down and positive for up.
SIGNAL FUNCTION:
Displays coarse cued LOS symbol in IHADSS FOV elevation reference.
REMARKS: From FCC to symbol generator.
PASS:
Location of fault if CONDITION is met: replace symbol generator (TM 11–1520–238–23–2).
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–129 SIGNAL NAME:
PLT FOV BOX CONT
MEMORY LOCATION: 000720
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates pilot coarse LOS symbol in IHADSS FOV.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–130.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–130 SIGNAL NAME:
PLT FOV BOX SIZE
MEMORY LOCATION: 000717
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
If the first digit displayed on HOD is 0, 1, 4, or 5=LARGE
If the first digit displayed on HOD is 2, 3, 6, or 7=SMALL
SIGNAL FUNCTION:
Selects TADS (large)/PNVS (small) and IHADSS box sizes.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION corresponds to selected box size is met, go to paragraph 14–131.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–131 SIGNAL NAME:
PLT FOV BOX AZ
MEMORY LOCATION: 000720
MEMORY DATA BIT(S):
4–10
(SCALAR)
CONDITION:
Displays TADS/PNVS FOV box azimuth reference on VDU. Monitor HOD; memory
location should indicate negative for left and positive for right.
SIGNAL FUNCTION:
Displays pilot’s TADS/PNVS FOV box azimuth reference.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION is met, go to paragraph 14–132.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
