TM 1–1520–238–T–3
3–2
Change 5
FAILURE SYMPTOM INDEX (cont)
Symptom
Refer to paragraph
CPG DIR 2 DCPLR NO–GO CPG COMPARTMENT . . . . . . . . . . . . . . . . . . . . . .
3–125
CPG COLL 1 DCPLR NO–GO CPG COMPARTMENT . . . . . . . . . . . . . . . . . . . .
3–126
CPG COLL 2 DCPLR NO–GO CPG COMPARTMENT . . . . . . . . . . . . . . . . . . . .
3–127
CPG CYCLIC GRIP NO–GO CPG COMPARTMENT . . . . . . . . . . . . . . . . . . . . . . 3–128
CPG BUCS SEL NO–GO CPG COMPARTMENT . . . . . . . . . . . . . . . . . . . . . . . . . 3–129
TURN RATE INDICATOR NO–GO PLT COMPARTMENT . . . . . . . . . . . . . . . . .
3–130
Personnel Required:
(2)
References:
TM 1–1520–238–23
TM 1–1520–238–T–7
Equipment Conditions:
Ref
Condition
TM 1–1520–238–T–7
DIGITAL AUTOMATIC
STABILIZATION
EQUIPMENT (DASE)
– MAINTENANCE
OPERATIONAL CHECK in
progress
NOTE
All multiplex read code responses are read from right to
left.
Multiplex read codes must be used in conjunction with
applicable Maintenance Operational Check (MOC) in
progress.
Multiplex read codes are observed on the HOD (ADC) or
CDU (ADD).
MULTIPLEX READ CODE INTERPRETATIONS
3–1 SIGNAL NAME:
DASEC STATUS WORD TERMINAL FLAG
MEMORY LOCATION: 002077
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of bits 16, 15, or 13.
REMARKS: From digital automatic stabilization equipment computer (DASEC) to fire control
computer (FCC).
PASS:
If first digit on heads out display (HOD) is 0, 2, 4, or 6, go to paragraph 3–2.
FAIL: Location of fault: go to paragraph 3–4.
3–2 SIGNAL NAME:
DASEC STATUS WORD BIT PROCESSOR (ACY) CPU BIT STATUS (ACZ)
MEMORY LOCATION: 002077
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates ability of word bit processor to work properly.
REMARKS: From DASEC to FCC.
PASS:
If first digit displayed on HOD is 2 or 6, go to paragraph 3–3.
FAIL: Location of fault: replace DASEC (TM 1–1520–238–23).
