(1) Intercommunication set AN/VIC-1(V).
(2) Medium power FM radio; that is, any of the AN/VRC-12 series
radios, except the 12 series retransmission configuration, the AN/VRC-49,
and the AN/VRC-45.
2. OPERATION CHECK (Op Check). An operation check provides a step-by-step
procedure for evaluating the intercommunication set AN/VIC-1(V) with medium
power FM radio and communication security equipment TSEC KY-57 (VINSON). It
specifies the procedure to check the operational status of the system (see
3. TYPES OF PROBLEMS. Problems within the system can normally be defined
a. If the normal indication does not occur when it should, an item
within the circuit probably contains an open.
b. If it occurs before it should, an item within the circuit probably
contains a short.
c. Identifying the type of problem will determine the troubleshooting
method and will speed up the process and repair of the equipment.