Music 1 Volume - PS Engineering PMA8000C Operation Manual

on the radio, the intercom, or both, depending on the "Mute" mode selected.
When that conversation stops, the music returns to the previous level com-
fortably, over a second or so.
The mute mode functions are controlled through sequential pushes of the
Mute button, and include voice annunciations of the mode selected.

Mute On - music will mute with either intercom or radio - MUTE but-
ton is LED lit. Voice annunciation is "Mute on."

Radio Mute - Radio will mute music, but intercom will not mute mu-
sic - MUTE LED is OFF. Annunciation is "Radio mute."

Intercom Mute - Radio will not mute music, intercom will mute mu-
sic - MUTE LED is OFF. Annunciation is "Intercom mute."

Mute Off - The "Karaoke" mode - music will not mute except during
radio transmissions.- MUTE button LED is OFF. Annunciation is "Mute
off."
When the PMA8000C is turned on, it always begins in "Mute on" mode.
The passengers' intercom also has a SoftMute™ circuit. If
the passengers hear the radio, or talk on the intercom, the
music will mute. If the audio panel is in CREW mode, then
the radio reception will not affect the passenger music.
If the passengers are listening to the music 1 input or front
panel input, their Karaoke Mode is controlled by the front
panel "Mute" button.
If the passengers are listening to the music 2 input, their Karaoke Mode is
activated by holding the AUX and MUTE buttons for more than one second.

Music 1 Volume

The music level is set at the factory at a comfortable level. We recommend
adjusting the entertainment volume at the sources. However, the Music 1
volume can be adjusted from the front panel, if desired, by pressing SPR
button.
NOTE: Increasing this music level can increase the amount of aircraft elec-
trical system noise as well.
The Music 1 volume can be adjusted from the front panel, if desired, by
pressing and holding the Music Volume (SPR) key.
Music Volume (SPR)
Press the
heard indicating the volume level is changing and the music volume will
begin to change. The volume will either increase or decrease, depending on
the last action. To reverse the volume change, release the
(SPR) button, and press and hold again, and the volume will change. Con-
tinue to hold until the desired level is reached.
Note: Since it is possible to turn the volume completely off, you may need to
turn the volume up if you don't hear music when you expected to.
It will take about 12 seconds to go from minimum to maximum volume.
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for more than one second, a tone will be
202-890-0303 Rev. 3
Music Volume
PMA8000C Pilot Guide