TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–107 i. INTERCOMMUNICATION SYSTEM — CONTINUED (3) DRIVER CANNOT COMMUNICATE. INITIAL SETUP Test Equipment Multimeter (item 6, Appx H) Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Personnel Required TM 9–2350–311–20–1 Equipment Condition Amplifier AM 1780/VRC POWER switch to OFF (TM 9–2350–311–10) Vehicle MASTER switch to OFF (TM 9–2350–311–10) yes no Replace cable CX9640. A CONTINUED ON NEXT PAGE NOTE Steps B through L must be repeated for each contact arm assembly. – + 1. Disconnect cable CX9640 from J505 connector at amplifier AM 1780/VRC. 2. Disconnect other end of cable CX9640 from power system wiring harness connector. 3. Place one multimeter lead in position 1 and other lead in position 2 for individual continuity checks. POSITION 1 POSITION 2 B L C K A H 4. Check for continuity. Is continuity present? POSITION 2 – + – + CABLE CX9640 CONNECTORS POSITION 1 POSITION 1 POSITION 1 POSITION 2 POSITION 2 CABLE CX9640 CONNECTORS CABLE CX9640 CONNECTORS J505 AMPLIFIER AM 1780/VRC