TM 1–1520–238–T–3
9–3
9–5 SIGNAL NAME:
CPG MRTU TYPE III STATUS DC ANALOG OUTPUT BIT
MEMORY LOCATION: 000566
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of output DC analog circuits.
REMARKS: From CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 3 or 7, go to paragraph 9–6.
FAIL: Location of fault: MUX CPG circuit breaker, wiring from MUX CPG circuit breaker to CPG
MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–6 SIGNAL NAME:
CPG MRTU TYPE III INPUT BIT STATUS
MEMORY LOCATION: 000566
MEMORY DATA BIT(S):
14
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates status of turn–on test of input circuitry.
REMARKS: From CPG MRTU Type III to FCC.
PASS:
If second digit on HOD is 7, go to paragraph 9–7.
FAIL: Location of fault: MUX CPG circuit breaker, wiring from MUX CPG circuit breaker to CPG
MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–7 SIGNAL NAME:
CPG MRTU TYPE III AD BIT STATUS
MEMORY LOCATION: 000566
MEMORY DATA BIT(S):
13
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates self–test status of analog to digital converter.
REMARKS: From CPG MRTU Type III to FCC.
PASS:
If third digit on HOD is 1, go to paragraph 9–8.
FAIL: Location of fault: MUX CPG circuit breaker, wiring from MUX CPG circuit breaker to CPG
MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–8 SIGNAL NAME:
CPG MRTU TYPE III SERIAL DIGITAL ERROR
MEMORY LOCATION: 000566
MEMORY DATA BIT(S):
10
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Monitors data entry keyboard (DEK) and alphanumeric display (AND).
REMARKS: From CPG MRTU Type III to FCC.
PASS:
If fourth digit on HOD is 0, go to paragraph 9–9.
FAIL: Location of fault: go to Chapter 17, paragraph 17–3.
9–9 SIGNAL NAME:
CPG MRTU TYPE III SERIAL DIGITAL ERROR
MEMORY LOCATION: 000620
MEMORY DATA BIT(S):
10
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Monitors AND.
REMARKS: From CPG MRTU Type III to FCC.
PASS:
If fourth digit on HOD is 0, go to paragraph 9–10.
FAIL: Location of fault: go to Chapter 15, paragraph 15–27.
