Section II. CONTROLS AND INSTRUMENTS

TM 11-6625-2609-12

(3) Remove the equipment from the carton.

c. Check to see whether the equipment has been

(4) Remove front and rear covers from the

modified. (Equipment which has been modified will

maintenance kit.

have the MWO number on the front panel, near the

(5) Release the three fasteners on the. inner

nomenclature plate,) Check also to see whether all

panel of the rear cover, lift the panel, and remove the

currently applicable MWO's have been applied.

envelopes containing the manual and diagrams.

(Current MWO's applicable to the equipment are

(6) Remove the nylon tape that secures the test

listed in DA Pam 310-7.)

cables at the rear of the unit.

2-2. Tools, Test Equipment, and Materials

(7) Place all cushioning material in the shipping

Required for Installation

container and same for storage or reshipment.

There are no special tools, test equipment, or

2-1.1. Checking Unpacked Equipment

materials required for installation, other than the

equipment required to test the AN/ARC-134.

a. Inspect the equipment for damage incurred

during shipment. If the equipment has been dam-

2-3. Installation Instructions

aged, report the damage on DD Form 6.

b. Check the equipment against the component

a. Remove the cover from the maintenance kit.

listing in the operator's manual and the packing slip

b. Set maintenance kit up until it rests on its feet.

to see if the shipment is complete. Report all

c. Release two push-to-release fasteners inside

discrepancies in accordance with the instructions of

cover and lift door.

TM 38-750. The equipment should be placed in

d. Remove interconnect cable from cover and

service even though a minor assembly or part that

attach to TRANSCEIVER connector on front of

maintenance kit.

does not affect proper functioning is missing.

Section II. CONTROLS AND INSTRUMENTS

2-4. Operator's Controls

switches, indicators, and jacks of the maintenance

Table 2-1 lists and describes the front panel controls,

kit. Figure 2-1 illustrates them.

Table 2-1. Operator's Controls

Control, indicator, switch, or jack

Function

POWER CB circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .In the ON position, applies the primary operating voltage

to the radio control and the intercom control Lights the

28.7 VDC indicator lamp and the panel lamps on the

radio control and the intercom control.

VHF COMM OFF-PWR switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In the PWR position, applies primary operating voltage to

the AN/ARC-134 and lights the radio control VHF

COMM frequency counter dial indicator lamps.

VHF COMM MHz frequency selector switch . . . . . . . . . . . . . . . . . . . . . Tunes the AN/ARC-134 to the desired frequency (116 to

149 MHz).

VHF COMM fractional MHz frequency selector switch . . . . . . . . . . . Tunes the AN/ARC-134 to the desired fractional megaherts

frequency (116.000 to 149.975 MHz).

VHF COMM VOL control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Adjusts the AN/ARC-134 volume level.

COMM TEST switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disables the AN/ARC-134 squelch circuit.

VHF COMM frequency counter dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indicates channel frequency to which the AN/ARC-134 is

tuned.

Transmit-interphone selector, a 6-position rotary switch. . . . . . . . . . . When set to position 2 and PTT switch on U-94A/U con-

nector is depressed, applies audio from the H-157/AIC

microphone through the preamplifier and amplifier of the

intercom control to the transmitter of the AN/ARC-184

under test. Also receiver audio to amplifiers and headset.

2-2 Change 1