PS Engineering PMA8000B Pilot’s Guide - Manual (Page 8)

Page 8 202-890-0202 PMA8000B Pilot Guide Rev. 6
Music Muting
Music source #1 (front panel jack and Music 1 input) has four muting
modes, which are announced in the headset as they are activated.
These are: Radio Mute (aircraft radio mutes music), Intercom Mute
(intercom conversation mutes music), Mute on (both radio and inter-
com mutes music), and Mute off (nothing interrupts music). Press the
Mute button to cycle through the modes in sequence.
Music #2 has muting on or off, and is externally controlled.
Music in pilot isolate mode
The pilot can elect to listen to Music 1, even in the Pilot Isolate mode.
While already in the ISO mode, press and hold the ISO button until
the indicator blinks. The ICS indicator will then blink every few sec-
onds to indicate this mode is active. Music muting will follow the
modes listed above.
Smart Function Keys (SFK) Configuration
Secondary functions give the PMA8000B some special capabilities.
“Intercom” allows the passengers and crew to converse, in ALL in-
tercom mode, without distracting the crew from radio duties. The pas-
senger microphones are cut out from the crew when the radio is ac-
tive, and the passengers never hear aircraft radios. Press and hold the
TEL button until the audio annunciation starts (about 1 second) to
activate the function, and you will hear “Alternate Intercom Func-
tion.” Hold the button again to exit, and you will hear “Standard Inter-
com Function.”
“Monitor” activates a Monitor Mode. In this case, the audio from
the COM radio that is selected for transmit will mute the other COM
Annunciation LED Intercom Radio
“Mute on” on Muted Muted
“Mute off” off ♫ ♫
“Radio mute” off ♫ Muted
“Intercom mute” off Muted ♫