PS Engineering PMA7000CD Installation Manual User Manual
Page 21
PS Engineering
PMA7000CD Audio Selector Panel and Intercom System
With PCD7100-R Remote Compact Disc Player
Installation and Operator’s Manual
200-790-0010
Page 3-1
Revision 10, September 2005
Section III OPERATION
GENERAL INFORMATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PMA7000CD Audio Selector
Panel/Intercom Systems. Please read it carefully before using the equipment so that you can take full ad-
vantage of its capabilities.
This section is divided into four sections covering the basic operating areas of the PMA7000CD systems.
They are Audio Selector, Transceiver Selection, Intercom, and Marker Beacon Receiver (7000MS-CD
only).
MARKER INDICATOR LAMPS
MARKER MODE
RECEIVE AUDIO SELECTORS
INTERCOM VOLUME (INNER)
MUSIC VOLUME (OUTER)
CD
CONTROLS
IINTERCOM MODE
TRANSMIT SELECTORS
CREW ICS
CD MUTE CONTROL
SPEAKER CONTROL
Figure 3-1 PMA7000CD controls
3.2
Power Switch (EMG-Fail Safe Operation)
Unit power is turned on and off by pushing the volume knob. In the
OFF
or "EMG" position, the pilot is
connected directly to Com 1. This allows communication capability regardless of unit condition. Any time
power is removed or turned
OFF
, the audio selector will be placed in the fail-safe mode.
The power for the CD player (PCD7100-R) is controlled by the audio panel. When the audio panel is on, it
automatically activates the player. If it is necessary to disable the CD player, hold the two CD buttons (far
right) in for more than 2 seconds. This removed power from the PCD7100-R circuits. To re-enable the
PCD7100-R, cycle power on the PMA7000CD.
The power switch also controls the audio selector panel functions, intercom, CD player and marker beacon
receiver, (PMA7000MS-CD only).
3.3
Microphone (XMT) Selection (All models)
There are six pushbuttons associated with the communications transceivers. The lower buttons control
which transceiver is selected for transmit.
The PMA7000CD gives priority to the pilot’s PTT. If the copilot it transmitting, and the pilot presses his
PTT, the pilot’s microphone will be heard over the selected com transmitter.