Sirius Satellite Radio PMA8000-SR

PS Engineering

PMA8000-SR Series Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-880-0000 Page 2-9 Rev. 13, July 2006

Alternate Music Interconnect

using PAV80 to control

the Satellite Radio

Ent. #1 Input (L)

SR Output (R)

SR Output (L)

Ent. #1 Input (R)

Ent. #2 Input (L)

Ent. #2 Input (R)

AUX Input (R)

Audio Lo

Pass Audio Out (R)

PAV80 PMA8000-SR

Shield Ground

Audio Lo

Pass Audio Out (L)

Audio Lo

AUX Input (L)

AUX Audio Lo

Shield Ground

Audio Lo

Crew IFE Audio (R)

Crew IFE Audio (L)

Audio Lo

Figure 2-4 PMA8000-SR using PAV80 as control

2.4.18 Entertainment muting

The PMA8000-SR-system incorporates a "Soft Mute" system. This will mute the entertainment devices

during ICS or radio conversation.

Any signal appearing in the unswitched audio inputs will always mute the entertainment sources, even

though the passengers may not hear the audio tone itself.

Press the Mute switch to activate the Karaoke mode (disabling crew SoftMute™), This allows the pilot to

place the entertainment into the background while having the radios in the foreground. This eliminates the

constant interruption of the music while still having the radios a priority.

Caution: Local oscillators and internal signals from entertainment equipment can cause undesired interfer-

ence with other aircraft systems. Before takeoff, operate the entertainment devices to determine if there is

any adverse effect within the aircraft systems. If any unusual operation is noted in flight, immediately

switch off the entertainment devices.

All additional entertainment devices must be switched off for both takeoff and landing.

2.4.18.1.1 Entertainment 2 Mute (J2 Pin 13 & 14)

Connecting J2 pin 13 to pin 14 (or ground) through a SPST switch places the entertainment #2 music

source into the Karaoke Mode. In this mode, incoming music and intercom conversation will not mute the

music for the passengers’ intercom net. This allows uninterrupted music during casual conversation and at

times when radio communications are of lesser importance.

See section 2.4.14 for alternative music connection to allow the passengers and crew to use the same input.

If desired, the AUX button can act as the passengers’ mute control. Connect J2 pin 18 (AUX logic) to J2

pin 13 (Entertainment. 2 Mute inhibit). This is NOT recommended is AUX is also used as an audio switch.