PS Engineering Inc. ®
PAR100EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-760-0000
Page 3-7
Rev. 11, Feb. 2013
NOTE:
All music devices should be turned off for take off, landing, or any critical phase of flight. FAA Regulation 14 CFR
91.21 restricts the use of portable electronic devices.
§91.21 “(a) Except as provided in paragraph (b) of this section, no person may operate, nor may any operator or pilot
in command of an aircraft allow the operation of, any portable electronic device on any of the following U.S.-
registered civil aircraft. . .
“(b)(5) Any other portable electronic device that the operator of the aircraft has determined will not cause interfer-
ence with the navigation or communication system of the aircraft on which it is to be used.”
You can refer to Advisory Circular 91.21-1A for more information, at
http://www.faa.gov
3.10 Music Muting (9)
There are two SoftMute™ muting circuits. The front panel "Mute" button has four modes, and
controls the Mute function for music 1. Music 2 muting is controlled by an external switch, and
has two modes, mute on and mute off.
The SoftMute™ circuit will cut the music out 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 previous level comfortably, over a second or so.
The Music 1 mute mode functions are controlled through sequential pushes of the Mute button, and in-
clude LED indication of the mode selected.
MUTE ON
- music
will
mute with
either
intercom
or
radio – MUTE ON button is lit.
RADIO MUTE
– Intercom will
not
mute music, radio
will
mute music. RAD LED indicator is on
INTERCOM MUTE
- Radio will
not
mute music, intercom
will
mute music - MUTE ICS LED is ON.
MUTE OFF
- “Karaoke” mode - music will not mute except during outgoing transmissions.- All Indi-
cators off.
♫ Music
Intercom
Radio
LED INDICATOR
Mute ON
Muted
Muted
ON
Mute OFF
♫
♫
None
Radio Mute
♫
Muted
RAD
ICS Mute
Muted
♫
ICS
The passenger’s 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 af-
fect the passenger music.
3.10.1 Music 2 Mute Control
Passengers also have a Karaoke Mode. If the passengers are listening to the music 2 input, their Karaoke
Mode is activated by an external switch. See § 2.7.2.1
If the passengers are listening to the Music 1 input, their Karaoke Mode is controlled by the front panel
“Mute” button.
3.10.2 Liquid Crystal Display Control
The contrast on the LCD display can be controlled by using a service adjustment located inside of the unit.
See § 2.10 for adjustment information.
