TM 11-5821-333-30
CHAPTER 6
MAINTENANCE INSTRUCTIONS FOR
MAINTENANCE GROUP OA-9264A/ARC
Section I. PRINCIPLES OF OPERATION
6-1. INTRODUCTION
Maintenance Group 0A-9264A/ARC is used to test and troubleshoot AN/ARC-201(V) and AN/ARC-201A(V) ra-
dio set components. It is made up of the following:
l Interconnecting Device,
l Fill Device, Electronic Counter-Countermeasures MX-18290/VRC,
l Panel, Receiver-Transmitter RT–1477/ARC–201 (V),
l Parts Kit, Electronic Equipment,
Case, Transit,
l Headset, H-157/AIC
l Cable Assemblies W1 through W8, W10, and W17.
6-2. INTERCONNECTING DEVICE
The interconnecting device is made up of five main pieces. They are:
Receiver-Transmitter, Radio RT-1476A/ARC-201A(V),
Control, Radio Set C-11466A/ARC-201A(V),
Adapter, Data Rate CV-3885/ARC-201(V),
Intercom C-6533/ARC.
Test Adapter.
The interconnecting device mounts in the bottom section of the transit case. The interconnecting device is
shown in figure 6-1.
a. Receiver-Transmitter, Radio RT–1476A/ARC–201A(V). This is the reference rt (ref rt) mounted in the test
adapter. It exchanges radio signals with an rt unit under test (rt uut). It provides an rt for an rcu unit under test
(rcu uut) to control.
b. Control, Radio Set C-11466A/ARC-201A(V). This is the reference remote control unit (ref rcu) mounted
in the test adapter. It exchanges remote control signals with an rt uut which tests the rt’s ability to operate under
remote control.
c. Adapter, Data Rate CV–3885/ARC–201(V). This is the reference data rate adapter (ref dra) mounted in
the test adapter. It exchanges data signals with a data rate adapter unit under test (dra uut) to test its ability to
transmit/receive data signals properly.
d. /ntercom C-6533/ARC. This is the intercommunications system (its) mounted in the test adapter. It pro-
vides interface with the headset which connects to connector J9. It routes audio signals to or from the operator to
the ref rt or rt uut.
e. Test Adapter. The test adapter holds the units listed above. It is described in detail in paragraph 6-6.
Each unit is mounted in the front panel of the test adapter and secured with dzus fasteners. Each is connected to
the test adapter as shown in figure 6-2.
6-1
