Description of Maintenance Kit Electronic Equipment MK-733/ARC-54

TM 11-6625-601-12

1-7. Description of Maintenance Kit Elec-

for testing the RT-348/ARC-54 of the G-3835/ARC-

tronic Equipment MK-733/ARC-54

54.

(fig. l-l)

e. Cable Assembly, Special Purpose, Electrical

CX-9072/ARC-54 is used to interconnect the TS-

The MK-733/ARC-54 is composed of the TS-1967/

1967/ARC-54 and the RT-348/ARC-54. The CX-

ARC-54, the SM-349/ARC-54, the CW-711/ARC-54,

9072/ARC-54 provides control circuit and coaxial

adapters, and extender cables (para 1-6). The main

connections for testing the RT-348/ARC-54.

panel of the MK-733/ARC-54 is formed by the

f. Cable Assembly, Radio Frequency CG-409G/U

TS-1967/ARC-54 and the SM-349/ARC-54 installed

(1 ft) is used to interconnect the RF circuits

in a fiberglass case. Operating controls, connec-

between the TS-1967/ARC-54 and the unit under

tors, and indicators are mounted on the front panel

test. The CG-409G/U consists of RF Cable RG-58/U

of the TS-1967/ARC-54 and the SM-349/ARC-54.

with a BNC connector on each end.

The SM-349/ARC-54, normally plugged into the

g. Cable Assembly, Power, Electrical CX-11136/

front panel of the TS-1967/ARC-54, can be removed

ARC-54 is used to interconnect the TX-1967/ARC-

and substituted for the RT-348/ARC-54 when

54 to the primary power source. One end of the

operational checks are performed in the aircraft. A

cable has a plug that connects to POWER 28 VDC

sliding connector bracket, on the rear of the

jack J32 on the TS-1967/ARC-54. The other end of

SM-349/ARC-54 (fig. 2-3), is used to adapt the

the cable has three alligator clips that connect to

SM-349/ARC-54 to the RT-348/ARG54 shockmount

the power source.

(Mounting MT-1535/ARC-54). Locking pins hold

h. Adapter, Connector UG-1678/U is used to

the bracket in place in either the extended or

adapt the RF connector of the CU-942/ARC-54 (or

retracted position. Indicator ID-48/ARN, mounted

CU-943/ARG-54) to a BNC connector.

on the front panel of the TS-1967/ARC-54 (fig. 2-2),

i. Extender, Module MX-4930/ARC-54 is used to

is used to display left, right, or over-target homing

extend the fixed intermediate frequency (IF)

information during homing tests. A blower in the

module from the RT-348/ARC-54. The test jacks on

TS-1967/ARC-54 provides forced air ventilation

the MX-4930/ARC-54 provide access to the module

during transmit tests. When prepared for transit,

connector pins.

the compartment cover of the CW-711/ARC-54 is

j. Extender, Module MX-4931/ARG-54 is used to

closed. The case containing the SM-349/ARC-54

extend the homer module from the RT-348/ARC-

and the TS-1967/ARC-54 is placed in the recessed

54. The test jacks on the MX-4931/ARC-54 provide

area of the CW-71l/ARG54 and held in place by

access to the module connector pins.

four latches.

k. Extender, Module MX-4932/ARC-54 is used to

1-8. Description of Minor Components

extend the power supply module from the RT-

(fig. l-l)

348/ARC-54. The test jacks on the MX-4932/ARC-54

provide access to the module connector pins.

Special features of the minor components of the

l. Extender, Module MX-4933/ARC-54 is used to

MK-733/ARC-54 are listed below:

extend the RF chassis from the RT-348/ARC-54.

a. Cover, Maintenance Kit CW-711/ARC-54 is of

The test jacks on the MX-4933/ARC-54 provide

lightweight rugged construction and contains all

access to the RF chassis connector pins.

of the accessories for the MK-733/ARC-54. Com-

m. Extender Module MX-4934/ARC-54 is used

partments are provided for storing the adapters,

to extend the SEL CALL transmit audio, or the

cable assemblies, and running spares.

receive audio module from the RT-348/ARC-54.

b. Antenna AS-1487/ARC-54 is used for radiofre-

The test jacks on the MX-4934/ARC-54 provide

quency (RF) signal transmission during bench test

access to the module connector pins.

of the RT-348/ARC-54. The AS-14871ARC-54 con-

n. Tool Kit, Electronic Equipment TK-156/ARC-

nects to ANT jack J7 on the TS-1967/ARC-54.

54 (fig. 1-2) contains tools used for calibration,

c. Cable Assembly, Special Purpose, Electrical

alignment, and maintenance of the TS1967/ARC-

CX-9070/ARC-54 is used to interconnect the TS-

54 and the RT-348/ARC-54. The tools are supplied

1967/ARC-54 and the CU-942/ARC-54 (or CU-943/

in a cloth container.

ARC-54). The CX-9070/ARC-54 provides control

circuit connections for testing the CU-942/ARC-54

1-9. Additional Equipment Required

or CU-943/ARC-54).

d. Cable Assembly, Special Purpose, Electrical

a. General. The test equipment listed in b below is

CX-9071/ARC-54 is used to interconnect the TS-

required for use with the MK-733/ARC-54 when

1967/ARC-54 and the G3835/ARC-54. The CX-

the tests described in paragraphs 2-7 through 2-10

9071/ARC-54 provides control circuit connections

are performed.

Change 3 1-3