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|  TM 11-5895-1141-34
Volume Control Module
Selector Module
Jack Panel Unit
Speaker Amplifier Assembly
Set-up and Initial Settings. Remove the cover from the test set case. After making sure the POWER switch is off, engage
the power cord, which is stored in the cover, with the power inlet and plug into a standard ac outlet convenient to the work
space. If more than one module is removed from the equipment for diagnosis, repair, or adjustment, install only one at a
time in place of the test set's own standard modules. This will ensure localization of a fault to one module. The standard
module may be reinserted at any time during the test procedure in order to compare performance under certain conditions.
If the module under test requires adjustment, plug it into the Module Test Adapter with the plug end of the latter inserted in
the Test Module. Following installation of the test module, position the controls as follows:
a.
Meter Scale 3.5 v/+10 dB
SPEAKER/3.2 Ω DUMMY LOAD switch, to 3.2 ohm
b.
600 Ω DUMMY LOAD switch to IN
c.
d.
20 dB ATTENUATOR switch to OUT
e.
EXTERNAL INPUT/INTERNAL INPUT switch to INTERNAL
f.
OSCILLATOR FREQUENCY to 1000 Hz
g.
OSCILLATOR LEVEL fully CCW
h.
INPUT SELECT switch to MICROPHONE
i.
OUTPUT SELECT switch to OSCILLATOR
j.
P/T KEY switch to OFF
k.
INTERLOCK switch to OFF
I.
MUTE OTHERS switch to OFF
m.
LAMP BRIGHTNESS control fully CW
n.
SPEAKER VOLUME control fully CCW
4-32
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