TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download

TM 9–2350–311–20–2 3–110 3–3 TROUBLESHOOTING — CONTINUED i. INTERCOMMUNICATION SYSTEM — CONTINUED (3) DRIVER CANNOT COMMUNICATE. — CONTINUED A B C D E F G H J K L M N P A B C D E F G H J K L M N P A B C D E F G H J K L M N P 1. Reconnect cable CX9640 connector to power system wiring harness connector. 2. Disconnect cable CX9640 from telephone/intercom wiring harness connector in driver’s compartment of hull. 3. Place one multimeter lead on wire 41 terminal and other lead in socket A of telephone/intercom wiring harness connector. 4. Check for continuity. Is continuity present? CONTINUED ON NEXT PAGE CONTINUED FROM STEP E yes no F – TELEPHONE/INTERCOM WIRING HARNESS CONNECTOR SOCKET A 1. Place one multimeter lead on wire 42 terminal and other lead in socket B of telephone/intercom wiring harness connector. 2. Check for continuity. Is continuity present? G yes no 1. Place one multimeter lead on wire 43 terminal and other lead in socket C of telephone/intercom wiring harness connector. 2. Check for continuity. Is continuity present? H Repair or replace wire 42 (TM 9–2350–311–20–1). CONTACT ARM ASSEMBLY TELEPHONE/INTERCOM WIRING HARNESS CONNECTOR SOCKET B TELEPHONE/INTERCOM WIRING HARNESS CONNECTOR SOCKET C Repair or replace wire 41 (TM 9–2350–311–20–1). + – –