TM-9-2350-238-10

RECOVERY VEHICLE, FULL-TRACKED: LIGHT, ARMORED, M578

OPERATOR’S MANUAL

APRIL 1990

TM-9-2350-238-10 - Page 135 of 291

TM 9-2350-238-10

OPERATION OF AUXILIARY EQUIPMENT–CONTINUED

OPERATING COMMUNICATIONS EQUIPMENT

The AM-1780/VRC is master control for inter-

com system. Nothing works until both

driver’s MASTER switch and AM-1780/VRC

are turned on.

Before starting vehicle engine,

make certain MAIN PWR switch

(1) is off. Otherwise, engine

start could damage AM-1780/

VRC.

1 With vehicle power on, set MAIN PWR

switch (1) to lNTercom ONLY and

POWER CKT BKR switch (2) to ON posi-

tion. POWER lamp (3) should light.

2 Leave INT ACCENT switch (4) at OFF,

RADIO Transmission switch (5) at

LISTENING SILENCE and INSTALLATION

SWITCH (6) at lNTercom ONLY.

The following procedures explain how to

operate control box C-2298/VRC.

Position of CVC helmet switch

FORWARD

MIDDLE

REARWARD

RAD

(won’t lock)

LISTEN

(locks)

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