Operating instructions

202-890-0602 Page 13
July 2008 PMA8000MP3 Pilot Guide
When Function A is toggled into “Alternate Intercom Function,” the
passengers will NOT hear aircraft radios, even in the All mode. In
addition, 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,
unless the radios are active AND the crew speaking on the intercom,
in this case the passengers will only hear the crew intercom, and their
microphone will be muted.
Function “B”
Function Button “B” allows you to either send the music 1 input to all
intercom stations, all of the time, or have the normal rules apply to
our music inputs.
When “Music number one distribution, all headsets” is selected, mu-
sic 1 (or the front panel utility jack) will be distributed to all headsets
and is independent of the intercom mode switch. Therefore, even in
the CREW mode, the passengers will hear Music 1, even though they
will not hear the intercom or radios.
This mode allows you to use a single in-flight entertainment source
aboard, and to send it everywhere, even in crew mode. The music
muting will be normal, and follow the selected mode of the crew or
passengers.
When you select Function “B,” for the alternate function, you hear
“Music number one distribution, Crew.” Now, music input 2 will fol-
low the modes in Function “C.”
Music 1
Passengers
Pilot & Copilot
Music Distribution ICS Dependent
ALL Mode
Music 1
Passengers
Copilot
Pilot
Music Distribution Dependent
ISO Mode
Passengers
Pilot & Copilot
Music Distribution Dependent
CREW Mode
Music 2
Music 1
ICS
ICS
Music Distribution Depends on Intercom Mode