Operating instructions

Page 8 Rev. 3

PMA8000B MP3 for Avidyne Entegra R9

level. Most general aviation headsets today have built-in volume con-

trols; therefore, volume also can be further adjusted at the individual

headset.

Mono Headsets in Stereo Installation

The pilot and copilot positions work with stereo or mono headsets.

All passenger headsets are connected in parallel. Therefore, if a mon-

aural headset is plugged in to a PMA8000B MP3 Stereo installation,

one channel will be shorted. Although no damage to the unit will oc-

cur, all passengers will lose one channel, unless they switch to the

“MONO” mode on the headset. .

Intercom Modes (8)

The “ICS” pushbutton switch on the left side of the panel provides

the selection of the three intercom modes. The description of the in-

tercom mode function is valid only

when the unit is not

in the "Split" mode.

Then, the pilot and copilot intercom is

controlled with the Mute button.

This button cycles through the intercom

modes, from top to bottom and then

back up, ISO, ALL, Crew, ALL, and

ISO. An LED shows the active mode .

SO: The pilot is isolated from the intercom and is connected only to

the aircraft radio system. He will hear the aircraft radio reception (and

sidetone during radio transmissions).

While in ISO Mode, the pilot can elect to hear music #1. First, be sure

that the ISO mode is selected. Then press and hold the MON 1 button,

and then hold the ICS mode button for more than one second. The

ICS indicator will blink slowly to indicate music is present in ISO.

The music muting will follow the selected modes.

The copilot and passengers will hear the music sources as configured

by the audio panel configuration Function keys. See page 11—Smart

Function Keys for more details.

LL: All parties will hear the aircraft radio and intercom. Crew will

hear Entertainment 1, passengers can hear Entertainment 1 or 2. Dur-

ing any radio or intercom communications, the music volume auto-

matically decreases. The music volume increases gradually back to

the original level after communications have been completed.