TM 1–1520–238–T–3
14–29
14–122 SIGNAL NAME:
PLT I BEAM CONT
MEMORY LOCATION: 000715
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Activates pilot I beam.
REMARKS: From FCC to symbol generator.
PASS:
If the first digit displayed on HOD is 1, 3, 5, or 7, go to paragraph 14–123.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–123 SIGNAL NAME:
PLT I BEAM TYPE
MEMORY LOCATION: 000715
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
If first digit displayed on HOD is 0, 1, 4, or 5=SOLID
If first digit displayed on HOD is 2, 3, 6, or 7=OPEN
SIGNAL FUNCTION:
Indicates when I beam is within constraints.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION corresponds to selected I beam, go to paragraph 14–124.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–124 SIGNAL NAME:
PLT I BEAM EL
MEMORY LOCATION: 000716
MEMORY DATA BIT(S):
4–15
(SCALAR)
CONDITION:
Displays I beam elevation reference when rockets are selected. Monitor HOD; memory
location should indicate negative for down and positive for up.
SIGNAL FUNCTION:
Displays elevation I beam reference for rockets.
REMARKS: From FCC to symbol generator.
PASS:
If CONDITION is met, go to paragraph 14–125.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
14–125 SIGNAL NAME:
PLT I BEAM AZ
MEMORY LOCATION: 000715
MEMORY DATA BIT(S):
4–15
(SCALAR)
CONDITION:
Displays I beam azimuth reference when rockets are selected. Monitor HOD; memory
location should indicate negative for left and positive for right.
SIGNAL FUNCTION:
Displays azimuth I beam reference for rockets.
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).
14–126 SIGNAL NAME:
PLT FOV DOT CONT
MEMORY LOCATION: 000717
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 14–127.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
