BendixKing KMA 30 - Manual (Page 18)

Page 18 KMA 30 Pilot Guide 202-890-5464
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 aircraft radio -
MUTE button 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 KMA 30 is turned on, it always begins in crew “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 passen-
ger 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 passen-
gers are listening to the music 2 input, their Karaoke Mode is activated by an
external switch installed either in the aircraft, or connected to the AUX but-
ton logic output pin on the KMA 30. Consult your installer for details.
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 electrical 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.
Press the MUSIC VOL (SPR) for more than one second, a
tone will be 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
MU-
SIC VOL ( SPR ) button, and press and hold again, and the volume will
change. Continue 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.