TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–105 Replace amplifier AM1780/VRC (para 8–16). END OF TASK Replace cable CX4720 (para 8–16). yes no E CONTINUED FROM STEP D CABLE CX4720 SOCKETS A AND B 1. Reconnect power relay box to intercom power supply harness to cable CX4720. 2. Disconnect cable CX4720 from J508 connector at amplifier AM 1780/VRC. 3. Turn MASTER switch to ON. 4. Place red multimeter lead in socket B and black lead in socket A. 5. Check for voltage. Is battery voltage present? J508 AMPLIFIER AM 1780/VRC + –