Air Comm Systems ACS 775SL-SP Installations- und Betriebshandbuch - Seite 6
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ACS 775SL-SP Installation and Operations
Manual Front Panel Controls
(See figure 1 - Page 8 for pictorial)
Description
The ACS 775SL-SP Single Audio Mixer Panel is a compact, lightweight unit which
provides full audio control for a single position in the aircraft.
capability to provide its user with 4 receive audio selections, 5 transmitter
selections, and full headphone audio and ICS volume control.
1- NORM - EMER SWITCH
This switch controls the operation of the audio panel in the event of an audio
amplifier failure. In the "up" position (NORM) the audio panel is in normal operating
mode. In the "down" position (EMER) all audios are summed and then fed directly
to the headphones. This enables the use of the transmitters and other equipment
during audio amplifier failure.
2 - RECEIVE AUDIO SELECT-MUTE SWITCHES
Normal operation - In the "up" position the audio selected is channeled to
its proper headphone. In the "down" position the audio selected is muted.
Emergency operation - In the "up" position the audio selected is muted. In the
"down" position the audio selected is summed with any other audios selected and
then sent to the headphone.
3 - HEADPHONE VOLUME CONTROLS
This concentric knob adjusts headphone volume and adjusts the radio volume.
Clockwise rotation increases the volume - counter clockwise rotation decreases the
volume. In the event of excessive or inadequate receiver volume the pots located
on the rear of the unit may be adjusted for the proper level. (see FIGURE 2)
Air Comm Systems, Inc.
It has the
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