PS Engineering PMA8000D Pilot’s Guide - Manual (Page 2)

Page 2 202-890-0304 Rev. 2 PMA8000D Pilot Guide
This pilot’s guide provides operating instructions for the PMA8000D Audio
Panel for dual panel systems. Please read it carefully before using the equip-
ment so that you can take full advantage of its capabilities.
This guide is divided into main operating sections such as Transceiver Selec-
tion, Audio Selector, Intercom, and Marker Beacon Receiver, and special
functions. The center section provides a reference that you can remove.
PMA8000D controls
Power Switch (1) (EMG-Fail Safe Operation)
The power switch controls all audio selector panel functions, intercom and
marker beacon receiver.
When the unit is turned off, either by pressing the volume control, or if the
breaker is pulled removing power, the PMA8000D is in Fail-Safe mode. In
this mode, the crewmember’s headset is connected to COM 1 for transmit
and receive. The fail safe audio will only be heard in the left ear of a stereo
headset.
NOTE: In the event of failure in both audio panels, both will default to COM
1. If both crew members attempt to transmit at the same time, the modulation
may be compromised, depending on the microphones used. Therefore, only
one crew member should transmit if both audio panels fail.
Communications Transmit (XMT) Selection (2)
To select COM 1 COM 2 or COM 3 for transmit, press the button on the
bottom row, next to the XMT legend. The bottom and top button indicators
light, showing that you will transmit and receive on the selected radio.
Communications Receive (RCV) Selection (3)
To listen to the other radio, press the upper button, in the RCV (receive) sec-