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PLT CYCLIC GRIP FAIL (ACY) PLT CYC GRIP STAT (ACZ) | Up
TM-1-1520-238-T-3 Army Model AH-64 Helicopter (NSN
1520-01-106-9519) (EIC: RHA) Multiplex Read Codes Manual | Next
CPG DECOUPLER LAT 1 (ACY) C LAT DCPL1 STAT (ACZ) |
TM 1–1520–238–T–3
Change 4
3–27
3–117 SIGNAL NAME:
CPG LVDT LAT (ACY) C LAT LVDT STAT (ACZ)
MEMORY LOCATION: 002110
MEMORY DATA BIT(S):
5
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of CPG lateral (roll) LVDT.
REMARKS: From CPG lateral (roll) LVDT through DASEC to FCC.
PASS:
If fifth digit displayed on HOD is 0, 1, 2, or 3, go to paragraph 3–118.
FAIL: Location of fault: CPG lateral (roll) LVDT, wiring from LVDT to DASEC, DASEC. Troubleshoot
wiring to isolate fault (TM 1–1520–238–T–7).
3–118 SIGNAL NAME:
CPG LVDT DIR (ACY) C DIR LVDT STAT (ACZ)
MEMORY LOCATION: 002110
MEMORY DATA BIT(S):
6
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of CPG directional (yaw) LVDT.
REMARKS: From CPG directional (yaw) LVDT through DASEC to FCC.
PASS:
If fifth digit displayed on HOD is 0 or 1, go to paragraph 3–119.
FAIL: Location of fault: CPG directional (yaw) LVDT, wiring from CPG directional (yaw) LVDT to
DASEC, DASEC. Troubleshoot wiring to isolate fault (TM 1–1520–238–T–7).
3–119 SIGNAL NAME:
CPG LVDT COLL (ACY) C CLTV LVDT STAT (ACZ)
MEMORY LOCATION: 002110
MEMORY DATA BIT(S):
7
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of CPG collective (vertical) LVDT.
REMARKS: From CPG collective (vertical) LVDT through DASEC to FCC.
PASS:
If fifth digit displayed on HOD is 0, go to paragraph 3–120.
FAIL: Location of fault: CPG collective (vertical) LVDT, wiring from CPG collective (vertical) LVDT to
DASEC, DASEC. Troubleshoot wiring to isolate fault (TM 1–1520–238–T–7).
3–120 SIGNAL NAME:
CPG DECOUPLER LONG 1 (ACY) C LONG DCPL1 STAT (ACZ)
MEMORY LOCATION: 002110
MEMORY DATA BIT(S):
8
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of CPG decoupler longitudinal (pitch) 1 switch.
REMARKS: From CPG decoupler longitudinal (pitch) 1 switch through DASEC to FCC.
PASS:
If fourth digit displayed on HOD is 0, 1, 2, or 3, go to paragraph 3–121.
FAIL: Location of fault: CPG decoupler longitudinal (pitch) 1 switch, wiring from CPG decoupler
longitudinal (pitch) 1 switch DASEC, DASEC. Troubleshoot wiring to isolate fault
(TM 1–1520–238–T–7).
3–121 SIGNAL NAME:
CPG DECOUPLER LONG 2 (ACY) C LONG DCPL2 STAT (ACZ)
MEMORY LOCATION: 002110
MEMORY DATA BIT(S):
9
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of CPG decoupler longitudinal (pitch) 2 switch.
REMARKS: From CPG decoupler longitudinal (pitch) 2 switch through DASEC to FCC.
PASS:
If fourth digit displayed on HOD is 0 or 1, go to paragraph 3–122.
FAIL: Location of fault: CPG decoupler longitudinal (pitch) 2 switch, wiring from CPG decoupler
longitudinal (pitch) 2 switch to DASEC, DASEC. Troubleshoot wiring to isolate fault
(TM 1–1520–238–T–7).
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