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TM-1-1520-238-T-3 Army Model AH-64 Helicopter (NSN
1520-01-106-9519) (EIC: RHA) Multiplex Read Codes Manual | Next
CPG HAS GUN |
TM 1–1520–238–T–3
Change 4
5–5
5–11 SIGNAL NAME:
ROUNDS REMAINING (ACY)
MEMORY LOCATION: 001165
MEMORY DATA BIT(S):
4–19
(HEX)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays rounds remaining (unfired) aboard the aircraft.
REMARKS: From rounds counter through LH FAB MRTU Type I to FCC.
PASS:
If HOD display corresponds to rounds counter display, go to paragraph 5–12.
FAIL: Location of fault: rounds counter/magazine controller, wiring from rounds counter/magazine
controller to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
5–11A SIGNAL NAME:
ROUNDS COUNT 1000’S (ACZ)
MEMORY LOCATION: 001165
MEMORY DATA BIT(S):
4–7
(HEX)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays rounds remaining, 0 through 9 (unfired) aboard the aircraft.
REMARKS: From rounds counter through LH FAB MRTU Type I to FCC.
PASS:
If HOD display corresponds to rounds counter display, go to paragraph 5–11B.
FAIL: Location of fault: rounds counter/magazine controller, wiring from rounds counter/magazine
controller to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
5–11B SIGNAL NAME:
ROUNDS COUNT 100’S (ACZ)
MEMORY LOCATION: 001165
MEMORY DATA BIT(S):
8–11
(HEX)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays rounds remaining , 0 through 9 (unfired) aboard the aircraft.
REMARKS: From rounds counter through LH FAB MRTU Type I to FCC.
PASS:
If HOD display corresponds to rounds counter display, go to paragraph 5–11C.
FAIL: Location of fault: rounds counter/magazine controller, wiring from rounds counter/magazine
controller to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
5–11C SIGNAL NAME:
ROUNDS COUNT 10’S (ACZ)
MEMORY LOCATION: 001165
MEMORY DATA BIT(S):
12–15
(HEX)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays rounds remaining , 0 through 9 (unfired) aboard the aircraft.
REMARKS: From rounds counter through LH FAB MRTU Type I to FCC.
PASS:
If HOD display corresponds to rounds counter display, go to paragraph 5–11D.
FAIL: Location of fault: rounds counter/magazine controller, wiring from rounds counter/magazine
controller to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
5–11D SIGNAL NAME:
ROUNDS COUNT 1’S (ACZ)
MEMORY LOCATION: 001165
MEMORY DATA BIT(S):
16–19
(HEX)
CONDITION:
(None)
SIGNAL FUNCTION:
Displays rounds remaining, 0 through 9 (unfired) aboard the aircraft.
REMARKS: From rounds counter through LH FAB MRTU Type I to FCC.
PASS:
If HOD display corresponds to rounds counter display, go to paragraph 5–12.
FAIL: Location of fault: rounds counter/magazine controller, wiring from rounds counter/magazine
controller to LH FAB MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1090–208–23–2).
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