TM 1–1520–238–T–3
Change 4
6–3
6–5 SIGNAL NAME:
HARS TEST STATUS
MEMORY LOCATION: 002106
MEMORY DATA BIT(S):
6
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates DASE is not commanding HARS to perform internal test.
REMARKS: From FCC through DASEC to HARS.
PASS:
If fifth digit on HOD is 1, 3, 5, or 7, go to paragraph 6–6.
FAIL: Location of fault: go to Chapter 3, paragraph 3–90.
6–6 SIGNAL NAME:
DASE LOOP TEST CMD
MEMORY LOCATION: 002235
MEMORY DATA BIT(S):
9
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates DASE is not commanding HARS to perform internal test.
REMARKS: From FCC through DASEC to HARS.
PASS:
If fourth digit on HOD is 0, 1, 4, or 5, go to paragraph 6–7.
FAIL: Location of fault: go to Chapter 3, paragraph 3–90.
6–7 SIGNAL NAME:
HARS ALIGN STATUS (ACY) HARS ALIGN IND (ACZ)
MEMORY LOCATION: 002154
MEMORY DATA BIT(S):
10–13
(BINARY)
CONDITION:
Bits changing indicates align status.
SIGNAL FUNCTION:
Monitors alignment.
REMARKS: From HARS through DASEC to FCC.
PASS:
If third and fourth digits on HOD are changing, go to paragraph 6–8.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–8 SIGNAL NAME:
HARS READY VALID
MEMORY LOCATION: 002131
MEMORY DATA BIT(S):
7
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates HARS alignment is complete and data is valid.
REMARKS: From HARS through DASEC to FCC.
PASS:
If fourth digit on HOD is 1, 3, 5, or 7, go to paragraph 6–9.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–9 SIGNAL NAME:
HARS STATUS
MEMORY LOCATION: 002130
MEMORY DATA BIT(S):
10
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates HARS status is GO.
REMARKS: From HARS through DASEC to FCC.
PASS:
If fourth digit on HOD is 1, 3, 5, or 7, go to paragraph 6–10.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
