TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
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TM 9-2350-273-BD COMMUNICATIONS SYSTEM (1) Turn turret power on. Turn MAIN PWR switch on the AM-1780 to INT ONLY. Power is now available for only intercom equipment. See figure 11-1. (2) Turn POWER CKT BKR switch on the AM-1780 to ON. This supplies power to AM-1780 and all control boxes connected to the AM- 1780. 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 11-4