PS Engineering PMA8000MP3 Pilot’s Guide - Manual (Page 15)

Page 15 Oct. 2010 PMA8000B MP3
then press the desired key, Function “A” “B” or “C”.
There are three special functions. Function Button “A” is related to the
intercom function, and allows the crew to mute passengers’ intercom
feed when radios are active.
Function Button “B” is used to activate a Monitor function that mutes
the secondary communication radio audio when the primary radio (the
one selected to transmission) is active.
Function “C” control how music is distributed in your airplane.
There are two music sources available to the PMA8000B MP3. Music
1 input can be either on the front jack, the MP3 player, OR the Music
1 input at the rear connector (Pins 23 and 24, J2). Music 2 is wired into
the rear connector, only (Pins 26 and 27, J2)
The volume of the function selection annunciations and recorder play-
back can be adjusted through a hole on the top of the unit marked
“ANN VOL.”
Function “A”
Function “A” controls the distribution of aircraft radio within the inter-
com, as well as passenger intercom muting. In the “standard intercom
function” mode, aircraft radios are distributed to all, when the inter-
com is in the ALL mode. In CREW mode, only the pilot and copilot
positions will hear aircraft radios.
When Function A is toggled into “Alternate Intercom Function,” the
passengers will NOT hear aircraft radios, even in the All mode. In ad-
dition, when in the ALL mode, passengers will be able to converse
with the crew. However, when the aircraft radio becomes active, the
intercom audio from the passengers is muted, allowing the crew to
focus on the radio. Passengers will be able to talk to each other.
Function “B”
Function “B” turns the Monitor Function on and off. When you press
TEL and SPR, the audio will announce “Monitor on,” when activated,
and “Monitor off” when deactivated.” In addition, the RCV LED will
blink every few seconds.
When the Monitor is on, the audio from the Com that is selected for
reception only (only top LED illuminated) will be muted when the
radio that is selected to transmit becomes active.
(Continued from page 10)