P2M3 MSL COAX B CONNECT

TM-1-1520-238-T-3 Army Model AH-64 Helicopter (NSN
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TM 1–1520–238–T–3 Change 4 8–137 8–508 SIGNAL NAME: P2M3 MSL COAX B CONNECT MEMORY LOCATION: 001757 MEMORY DATA BIT(S): 17 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax B to indicated missile. REMARKS: From launcher through left inboard MRTU Type II to FCC. PASS: If first digit on HOD is 4, 5, 6, or 7, go to paragraph 8–509. FAIL: Location of fault: left inboard launcher, wiring from left inboard launcher to left inboard MRTU Type II, left inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–509 SIGNAL NAME: P2M3 MSL COAX A CONNECT MEMORY LOCATION: 001322 MEMORY DATA BIT(S): 18 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax A to indicated missile. REMARKS: From RHE to ECSP. PASS: If first digit on HOD is 2, 3, 6, or 7, go to paragraph 8–510. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–510 SIGNAL NAME: P2M3 MSL COAX A CONNECT MEMORY LOCATION: 001757 MEMORY DATA BIT(S): 18 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax A to indicated missile. REMARKS: From launcher through left inboard MRTU Type II to FCC. PASS: If first digit on HOD is 2, 3, 6, or 7, go to paragraph 8–1106. FAIL: Location of fault: left inboard launcher, wiring from left inboard launcher to left inboard MRTU Type II, left inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–511 SIGNAL NAME: P2M3 MSL SKR LAUNCH PREPARE COMMAND (ACY) P2M3 SKR LNCH CMD (ACZ) MEMORY LOCATION: 001322 MEMORY DATA BIT(S): 19 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Prepares missile for free flight operation. REMARKS: From RHE to ECSP. PASS: If first digit on HOD is 0, 2, 4, or 6, go to paragraph 8–512. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–512 SIGNAL NAME: P2M3 MSL SKR LAUNCH PREPARE COMMAND (ACY) P2M3 SKR LNCH CMD (ACZ) MEMORY LOCATION: 001757 MEMORY DATA BIT(S): 19 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Prepares missile for free flight operation. REMARKS: From launcher through left inboard MRTU Type II to FCC. PASS: If first digit on HOD is 0, 2, 4, or 6, go to paragraph 8–1126. FAIL: Location of fault: left inboard launcher, wiring from left inboard launcher to left inboard MRTU Type II, left inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20).

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