PS Engineering PMA450 Installation Manual - Manual (Page 29)

PS Engineering
PMA450 Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-450-0000 Page 3-9 Rev. 3, November 2014
3.9.1 Music Muting
The SoftMute™ circuit will mute the music whenever there is conversation on the radio, the intercom, or
both, depending on the “Mute” mode selected. When that conversation stops, the music returns to the pre-
vious level comfortably, over a second or so.
The mute mode functions are controlled through Music Mute Menu which has three modes for each music
input. Mute ALL, Karaoke & Radio Mute.
The PMA450 always defaults to Mute ALL when turned on.
In Mute- music will mute with either intercom or radio
“Karaoke” mode - music will not mute except during radio transmissions.
Radio (Rad) Mute - Radio will mute music, but intercom will not mute music.
In addition to the panel mute menu, a remote switch may be installed to allow the passengers local access
to their Karaoke mode. When this switch is grounded, the menu choice is overridden.
3.9.2 Music Volume
The volume of the music inputs can also be adjusted from the menu of the PMA450:
Press Music → Music Volume → Desired music input. The LED Volume bar and the numeric volume will
show the volume level.
Figure 6 – Music Volume screen
3.9.3 Music in Pilot ISO mode
When the isolate (ISO) mode is activated, the music for the pilot is automatically disabled. If desired, the
pilot can elect to hear Music #1, in the ISO mode by selecting through the menu screen.