TM 1–1520–238–T–3
15–18
Change 4
15–65 SIGNAL NAME:
TADS SYMBOL CONT TO TEU (ACY) TADS SYMBOL CTL (ACZ)
MEMORY LOCATION: 001245
MEMORY DATA BIT(S):
4
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Inhibits TADS symbology.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If sixth digit on HOD is 0, 2, 4, or 6, go to paragraph 15–66.
FAIL: Location of fault: TEU, wiring from TEU to LH FAB MRTU Type I, LH FAB MRTU Type I.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–66 SIGNAL NAME:
AND L1 CHAR 2 1
MEMORY LOCATION: 000617
MEMORY DATA BIT(S):
6–19
(ASCII)
CONDITION:
Refer to Table 15–1 for ASCII code conversions.
SIGNAL FUNCTION:
Converts 16–bit word to characters 1 and 2 on line 1.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–67.
FAIL: Location of fault: AND, wiring from AND to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–67 SIGNAL NAME:
AND L1 CHAR 4 3
MEMORY LOCATION: 000616
MEMORY DATA BIT(S):
4–19
(ASCII)
CONDITION:
Refer to Table 15–1 for ASCII code conversions.
SIGNAL FUNCTION:
Converts 16–bit word to characters 3 and 4 on line 1.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–68.
FAIL: Location of fault: AND, wiring from AND to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–68 SIGNAL NAME:
AND L1 CHAR 6 5
MEMORY LOCATION: 000615
(ASCII)
MEMORY DATA BIT(S):
4–19
CONDITION:
Refer to Table 15–1 for ASCII code conversions.
SIGNAL FUNCTION:
Converts 16–bit word to characters 5 and 6 on line 1.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–69.
FAIL: Location of fault: AND, wiring from AND to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
15–69 SIGNAL NAME:
AND L1 CHAR 8 7
MEMORY LOCATION: 000614
MEMORY DATA BIT(S):
4–19
(ASCII)
CONDITION:
Refer to Table 15–1 for ASCII code conversions.
SIGNAL FUNCTION:
Converts 16–bit word to characters 7 and 8 on line 1.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–70.
FAIL: Location of fault: AND, wiring from AND to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 1–1270–476–T).
