TM-9-2350-275-BD Battlefield Damage Assessment and Repair for M113 Family Download
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TM 9-2350-275-BD COMMUNICATIONS SYSTEM NOTE Do not place INSTALLATION switch in the INT ONLY position when the AM-1780 is connected to a radio system (3) Turn INSTALLATION SWITCH on the AM-1780 to OTHER. (4) Intercom only operation is now possible using the control boxes and the audio accessories connected to them. (5) TO turn off the AM-1780, place the MAIN PWR and POWER CKT BKR switches to OFF. Figure 11-1. AM-1780 Amplifier c. Normal Radio figure 11-2. and Intercom Operation with Crew Members Control Box. See 11-4 Figure 11-2. Crew Members Control Box