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Section IV. TESTING MODULES USING THE MTS-2400 MODULE TEST SET
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TM-11-5895-1141-34 Control Radio Channel C-1 0931 (P)/FRC (NSN
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Table 4-11. MODULE TEST SET CONTROLS AND INDICATORS (Cont'd) - TM-11-5895-1141-340074


TM 11-5895-1141-34
Table 4-11. MODULE TEST SET CONTROLS AND INDICATORS
Controls/indicators or
Function
Connector
SIGNAL OUTPUT terminals
Connection of external measuring
E5, E6
instruments to the signal selected by
OUTPUT SELECT switch.
CHASSIS GROUND binding post
Chassis ground
E10
METER SCALE switch S3
Establishes the full-scale voltage
sensitivity of the ac meter circuit.
In terms of decibels it establishes
the range of levels which can be read
on the meter. (The number to be added
to the reading on the decibel scale
has five positions):
METER SCALE switch S3
35 mv, - 30 dB
positions
110 mv, - 20 dB
350 mv, - 10 dB
1.1 v, - 0 dB
3.5 v, + 10 dB
"PRESS TO READ" switch S4
When pressed, disconnects the meter
from the ac circuits and connects it
to the module power supply to read its
voltage on the 30-volt dc scale.
24 VDC SUPPLY VOLTAGE ADJ.
Sets the voltage of the module power
control R24
supply to a value between 22 and
26 volts dc .
3.2DUMMY LOAD/SPEAKER
In the upper position connects output
switch S13
of the module's loudspeaker amplifier
to a 3.2 ohm resistor; in the lower
position connects the output to the
panel speaker.
Fuseholder XF1, 3/8 A SLO
Holds fuse which carries primary ac
power for the test set. Should be
equipped with a 3/8 ampere "slow-
blow" fuse.
4-27


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