TM 1–1520–238–T–3
Change 5
30–7/(30–8 blank)
30–24 SIGNAL NAME:
MESSAGE ERROR
MEMORY LOCATION: 003071
MEMORY DATA BIT(S):
9
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
indicates message error.
REMARKS: From FCC to SDCC.
PASS:
If fourth digit displayed on CDU is 0, go to paragraph 30–25.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–2).
30–25 SIGNAL NAME:
RESERVED
MEMORY LOCATION: 003071
MEMORY DATA BIT(S):
12–14
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates serial digital error.
REMARKS: From FCC to SDCC.
PASS:
If second and third digits displayed on CDU are 0, go to paragraph 30–26.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–2).
30–26 SIGNAL NAME:
SUBSYSTEM FLAG
MEMORY LOCATION: 003071
MEMORY DATA BIT(S):
17
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates subsystem fault.
REMARKS: From FCC to SDCC.
PASS:
If first digit displayed on CDU is 0 or 1, go to paragraph 30–27.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–2).
30–27 SIGNAL NAME:
TERMINAL FLAG
MEMORY LOCATION: 003071
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates terminal fault.
REMARKS: From FCC to SDCC.
PASS:
If first digit displayed on CDU is 0, Replace SDCC (TM 11–1520–238–23–1).
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–2).
