TM
11-6625-820-12
b. Cable Assembly, Power, Electrical CX-11568/
connect primary power to the test set. The cable
is a 4-conductor cable, 8 feet long, with a 5-pin
female connector on one end that connects to
the test set. On the other end are four color-
coded, insulated wires protruding from the cable
convering. The red wire is connected to the
positive side of a 27.5-volt dc power source. The
gray wire is connected to the high side of a 115-
volt, 400-cps power source.
Both the white wire
and black wire are connected to ground.
Additional Equipment Required
The following equipment is not supplied as
part of the Test Sets, Radio AN/ARM-92 or
AN/ARM-92A, but is required for use with it.
a. Dc Power Supply. A 27.5-volt dc power
supply is required to supply a maximum of 33
watts to the test set.
b. Ac Power Supply.
A 115-voIt, 400-cps power
supply is required to supply a maximum of 92
watts to the test set.
c. Headset. A headset with at least 300-ohms
impedance (Headset HS-33, or equivalent) is
required to monitor the receiver audio output
signal.
Test
Set,
Wiring Harness,
Aircraft
TS-2501/
ARM-92
erator
(Signal
Generator
SG-1A/ARN,
or
equiv-
alent) is required to supply the rf carrier for the
the aid box. The indicators provide visual checks
VOR signal applied to the receiver.
of various circuits in the control unit and the
e. VOR Modulator. A VOR modulator (Modu-
g l i d e slope receiver.
lator MD-83, or equivalent) is required to ampli-
Description of Minor Components
tude modulate the rf carrier from the VOR signal
a. Cover, Test Set CW-878/ARM-92. The test
generator with a 30-cps signal, and a 9960-cps
set cover (fig. 13) provides storage space for
signal which is frequency modulated with a 30-cps
the aid box, and protects the test set during
signal.
f. Output Meter.
transit or storage. The test set cover is mounted
An
output
meter
(Output
Meter TS-585/U, or equivalent), is required to
by two hinges at the rear of the test set. It
measure the amplitude of the receiver audio out-
is secured with two latches located at the front
of the test set to form the upper half of the fiber-
put signal.
g. Multimeter. A m u l t i m e t e r ( M u l t i m e t e r
glass carrying case.
With the cover closed, the
ME-26/U, or equivalent) is required to make
gasket inserted in the bottom groove of the cover
makes the case airtight and moisture proof.
voltage measurements on the test set.
Change 3
