Cessna T182 1982 Pilot Operating Handbook page 218

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AUDIO CONTROL PANELS PILOT'S OPERATING HANDBOOK
SUPPLEMENT
2. INTERCOM VOLUME CONTROL (INT) - Controls the intercom audio volume.
Clockwise rotation of the knob increases the intercom audio volume and counter­
clockwise rotation decreases it.
3. HEADSET SIDETONE INTERN AL ADJUSTMENT ACCESS - To adjust headset
sidetone, remove the plug button, place COM AUTO selector switch in the PHONE
position, insert a small screwdriver into the adjustment potentiometer and rotate
it clockwise to increase the sidetone volume or counterclockwise to decrease
sidetone.
4. SPEAKER SIDETONE INTERN AL ADJUSTMENT ACCESS - To adjust speaker
sidetone. remove the plug button, place COM AUTO selector switch in the
SPEAKER position, insert a small screwdriver into the adjustment potentiome­
ter and rotate it clockwise to increase the sidetone vol ume or counterclockwise to
decrease sidetone. While adjusting sidetone, be aware that if the sidetone volume
level is set too high, audio feedback (squeal) may result when transmitting.
5. ANNUNCIATOR LIGHTS BRIGHTNESS SELECTOR AND TEST SWITCH
(ANN LTS-NITE/DAY /TEST) - Three-position toggle switch; in the up (NITE)
position. annunciator lights (Mkr Bcn, BC and RN) will show at a reduced light
level for typical night operations. In the center (DAY) position, annunciator
lights (Mkr Bcn, BC and RN) will show full bright to verify lamp operation. In the
NITE position, annunciator light (Mkr Bcn, BC and RN) level can be further
adjusted down to a preset minimum using the RADIO LT dimming rheostat knob.
6. AUDIO SELECTOR SWITCHES - Three-position selector switches used to select
either SPEAKER or PHONE operation for audio outputs. Enables the operator to
select anyone or more, audio signals on either SPEAKER or PHONE at the same
time or to silence audio when placed in the OFF position.
7. COM BOTH AUDIO SELECTOR SWITCH (COM BOTH) - A three-position toggle
switch used to allow both COM receivers to be monitored at the same time. Placing
the COM BOTH switch in the up (SPEAKER) position will enable the pilot to
monitor both the number 1 and number 2 COM receivers over the SPEAKER at the
same time. Placing the switch in the down (PHONE) position allows the pilot to
monitor both the number 1 and number 2 COM receivers through the headset at the
same time. Center (OFF) position, removes the non-selected COM receiver (or
both COM receivers if COM AUTO switch is OFF) from the audio system.
8. COM AUTO AUDIO SELECTOR SWITCH (COM AUTO OR AUTO) - A three­
position toggle switch provided to automatically match the audio of the approp­
riate N A V /COM communications receiver to the transmitter selected by the
transmitter selector switch. In the up (SPEAKER) position, audio from the
selected receiver will be heard on the airplane speaker. In the down (PHONE)
position, audio from the selected receiver will be heard through the headset.
Center (OFF) position, removes the automatic SPEAKER/PHONE selection
feature and will also disable the sidetone feature.
9. TRANSMITTER SELECTOR SWITCH (XMTR SEL) - A three-position rotary
switch used to activate the audio amplifier and switch the microphone to the
desired transmitter. The numbers 1, 2 and 3 positions correspond to the first.
second and third (from top to bottom) transmitters, respectively.
Figure
1.
Audio Control Panel Operating Controls
(Sheet 2 of 2)
21 August 1981
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