P1M3 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 8–71 8–251 SIGNAL NAME: P1M3 MSL COAX B CONNECT MEMORY LOCATION: 001712 MEMORY DATA BIT(S): 17 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax B to indicated missile. REMARKS: From launcher through left outboard MRTU Type II to FCC. PASS: If first digit on HOD is 4, 5, 6, or 7, go to paragraph 8–252. FAIL: Location of fault: left outboard launcher, wiring from left outboard launcher to left outboard MRTU Type II, left outboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–252 SIGNAL NAME: P1M3 MSL COAX A CONNECT MEMORY LOCATION: 001276 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 8–253. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–253 SIGNAL NAME: P1M3 MSL COAX A CONNECT MEMORY LOCATION: 001712 MEMORY DATA BIT(S): 18 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Commands launcher to connect coax A to indicated missile. REMARKS: From launcher through left outboard 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 outboard launcher, wiring from left outboard launcher to left outboard MRTU Type II, left outboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–254 SIGNAL NAME: P1M3 MSL SKR LAUNCH PREPARE COMMAND (ACY) P1M3 SKR LNCH CMD (ACZ) MEMORY LOCATION: 001276 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 8–255. FAIL: Location of fault: RHE, wiring from RHE to ECSP, ECSP. Troubleshoot wiring to isolate fault (TM 9–1427–475–20). 8–255 SIGNAL NAME: P1M3 MSL SKR LAUNCH PREPARE COMMAND (ACY) P1M3 SKR LNCH CMD (ACZ) MEMORY LOCATION: 001712 MEMORY DATA BIT(S): 19 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Prepares missile for free flight operation. REMARKS: From launcher through left outboard 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 outboard launcher, wiring from left outboard launcher to left outboard MRTU Type II, left outboard MRTU Type II. Troubleshoot wiring to isolate fault (TM 9–1427–475–20).

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