TM 11-6625-596-12
Control
Setting
Control
Setting
NOISE GEN ADJ................................... Depressed
CALIBRATE:..........................................
TEST CONDITION ................ COUPLER
NOISE GENERATOR ..................... Fully ccw
MICROPHONE LOAD ........... OFF
METER SENSTIVITY ..................... Fully ccw
RECEIVER LOAD ................. OFF
MICROPHONECURRENT .... OFF
DIAL SPEED ................................... Fully ccw
LEVEL A and B...................... Any
DIAL BREAK ................................... Fully ccw
VALUE C and D..................... Any
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
becomes lower than that of the surrounding air. This
2-20. Operation at Low Temperatures
moisture may combine with dirt inside the TS-716/U to
form a thin, insulating film on the switch contacts and the
a.
At low temperatures, certain electronic
pins of the connectors. Keep the TS-716/U as clean and
components begin to change values rapidly. For this
dry as possible. If the TS-716/U does not operate
reason, the values of some circuits of the TS-716/U,
properly, clean the connectors before returning it to a
particularly the dial speed test and the dial break test
higher category of maintenance for repair.
circuits, will not be accurate when the temperature falls
below 32*F. In cold weather, the TS-716/U should be
operated inside a heated vehicle or a shelter where the
2-22. Operation in Desert Climates
temperature can be kept above freezing.
b.
The TS-716/U can be stored at -25F. without
a.
The test microphone and test loudspeaker
mounted in the lid of the case are easily damaged by
damage to the components. However, at such low
sand and grit. If the TS-716/U must be operated in
temperatures both the electrical and mechanical parts
desert climates, it should always be set up in an inclosed
are more easily damaged by shock and vibration. If the
area. Be sure that the equipment to be tested is cleaned
TS-716/U must be moved in an open vehicle, it should
before it is placed in the coupler. Keep the case closed
be wrapped in soft material to cushion the shocks and
and latched when the set is not in use.
vibrations.
b.
If dirt or dust does fall on the micro- phone or
2-21. Operation Under Tropical Conditions
loudspeaker, it should be removed by gentle shaking and
light brushing with a soft brush. Never clean the
The high relative humidity in tropical areas causes
microphone and/or loudspeaker with compressed air.
moisture to condense on the equipment whenever the
temperature of the equipment
2-12