TM 1–1520–238–T–3
Change 4
6–13
6–48 SIGNAL NAME:
LONG VEL TO HARS (ACY) LONG VEL AID (ACZ)
MEMORY LOCATION: 002225
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; LONG VEL TO HARS positive indicates forward movement (LONG VEL
TO HARS negative indicates aft movement). Small changes on second digit indicate
fail.
SIGNAL FUNCTION:
Velocity input to HARS.
REMARKS: From FCC through DASEC to HARS.
PASS:
If conditions are met, go to paragraph 6–49.
FAIL: Location of fault: go to Chapter 2, paragraph 2–10.
6–49 SIGNAL NAME:
HARS LAT VEL
MEMORY LOCATION: 002167
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS LAT VEL positive indicates left movement (HARS LAT VEL
negative indicates right movement).
SIGNAL FUNCTION:
Monitors HARS latitude velocity.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to paragraph 6–50.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–50 SIGNAL NAME:
HARS LAT ACC
MEMORY LOCATION: 002175
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS LAT ACC positive indicates left movement (HARS LAT ACC
negative indicates right movement).
SIGNAL FUNCTION:
Monitors HARS latitude acceleration.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to paragraph 6–51.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–51 SIGNAL NAME:
LAT VEL TO HARS (ACY) LAT VEL AID (ACZ)
MEMORY LOCATION: 002226
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; LAT VEL TO HARS positive indicates left movement (LAT VEL TO
HARS negative indicates right movement).
SIGNAL FUNCTION:
Velocity input to HARS.
REMARKS: From FCC through DASEC to HARS.
PASS:
If conditions are met, go to paragraph 6–52.
FAIL: Location of fault: go to Chapter 2, paragraph 2–7.
6–52 SIGNAL NAME:
HARS NORM VEL
MEMORY LOCATION: 002170
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS NORM VEL positive indicates increased velocity (HARS NORM
VEL negative indicates decreased velocity).
SIGNAL FUNCTION:
Monitors HARS normal velocity.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to paragraph 6–53.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
