TM 1–1520–238–T–3
15–25
15–100 SIGNAL NAME:
AND L3 CHAR 22 21
MEMORY LOCATION: 000637
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 3.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–101.
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).
15–101 SIGNAL NAME:
AND L3 CHAR 24 23
MEMORY LOCATION: 000636
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 3.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–102.
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).
15–102 SIGNAL NAME:
AND L4 CHAR 2 1
MEMORY LOCATION: 000635
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 1 and 2 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 15–103.
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).
15–103 SIGNAL NAME:
AND L4 CHAR 4 3
MEMORY LOCATION: 000634
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 4.
REMARKS: From FCC through CPG MRTU Type III to AND.
PASS:
If ASCII conversion results correspond to display on HOD, go to paragraph 15–104.
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).
15–104 SIGNAL NAME:
AND L4 CHAR 6 5
MEMORY LOCATION: 000633
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 5 and 6 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 15–105.
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).
