TM 9-2350-256-102-13. OPERATION OF AUXILIARY EQUIPMENT.WARNINGTo avoid injury to personnel or damage to equipment, read each set of instructionscompletely before operating equipment.a.Communication Equipment. The communication equipment installed in the M88A1 is for internal and externalcommunications. This section describes the equipment and gives basic operating instructions.CAUTIONTurn radios OFF before starting main engine or APU.(1)AN/VIC-1(V)intercommunicationset. This equipment provides communications between crew membersduring operations. It consists of AM 1780/VRC amplifier and C-2298/VRC control box (one for each crewposition).CAUTIONBEFORE operating intercom or radio, ALWAYS:·Set AM 1780/VRC amplifier switches (1 thru 5) as shown in illustration below.·Set vehicle MASTER switch to on.·Set MX-7778A/GRC suppressor to ON.(a)Set MAIN PWR switch (1) to NORM.(b)Set POWER CKT BKR (4) to ON. POWER lamp (6) should light. If POWER CKT BKR trips to OFF,reset to ON.2-158
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