P3M1 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 8–173 8–647 SIGNAL NAME: P3M1 MSL COAX B CONNECT MEMORY LOCATION: 002026 MEMORY DATA BIT(S): 17 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax B to indicated missile. REMARKS: From launcher through right inboard MRTU Type II to FCC. PASS: If first digit on HOD is 4, 5, 6, or 7, go to paragraph 8–648. FAIL: Location of fault: right inboard launcher, wiring from right inboard launcher to right inboard MRTU Type II, right inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–648 SIGNAL NAME: P3M1 MSL COAX A CONNECT MEMORY LOCATION: 001335 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 8–649. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–649 SIGNAL NAME: P3M1 MSL COAX A CONNECT MEMORY LOCATION: 002026 MEMORY DATA BIT(S): 18 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax A to indicated missile. REMARKS: From launcher through right 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: right inboard launcher, wiring from right inboard launcher to right inboard MRTU Type II, right inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–650 SIGNAL NAME: 4P3M1 MSL SKR LAUNCH PREPARE COMMAND (ACY) P3M1 SKR LNCH CMD (ACZ) MEMORY LOCATION: 001335 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 8–651. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–651 SIGNAL NAME: P3M1 MSL SKR LAUNCH PREPARE COMMAND (ACY) P3M1 SKR LNCH CMD (ACZ) MEMORY LOCATION: 002026 MEMORY DATA BIT(S): 19 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Prepares missile for free flight operation. REMARKS: From launcher through right 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: right inboard launcher, wiring from right inboard launcher to right inboard MRTU Type II, right inboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20).

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