TM 1–1520–238–T–3
Change 4
15–27
15–110 SIGNAL NAME:
AND L4 CHAR 18 17
MEMORY LOCATION: 000625
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 17 and 18 on line 4.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–111.
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).
15–111 SIGNAL NAME:
AND L4 CHAR 20 19
MEMORY LOCATION: 000624
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 19 and 20 on line 4.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–112.
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).
15–112 SIGNAL NAME:
AND L4 CHAR 22 21
MEMORY LOCATION: 000623
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 21 and 22 on line 4.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–113.
FAIL: Location of fault: AND, wiring from AND to CPG MRTU Type III, CPG MRTU Type III, ORT LH
grip, wiring from ORT to CPG MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to
isolate fault (TM 1–1270–476–T).
15–113 SIGNAL NAME:
AND L4 CHAR 24 23
MEMORY LOCATION: 000622
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 23 and 24 on line 4.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–114.
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).
15–114 SIGNAL NAME:
AND LAST WORD INDICATE (ACY) L1 L2 INDICATE (ACZ)
MEMORY LOCATION: 000617
MEMORY DATA BIT(S):
5
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates last word.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If fifth digit on HOD is 4, 5, 6, or 7, go to Chapter 14, paragraph 14–124.
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).
