PS Engineering PMA8000 Pilot’s Guide - Manual (Page 2)

2 202-890-0000 PMA8000-Series Pilot Guide
This manual provides detailed operating instructions for the PS Engi-
neering PMA8000, Audio Selector Panel/Intercom Systems. Please
read it carefully before using the equipment so that you can take full
advantage of its capabilities.
This publication is divided into four sections covering the basic oper-
ating areas of the PMA8000 systems. They are Communications
Transceiver Selection, Audio Selector, Intercom, and Marker Beacon
Receiver.
PMA8000 controls
Power Switch (1) (EMG-Fail Safe Operation)
Unit power is turned on and off by pushing the volume knob. In the OFF or
"EMG" position, the pilot headset is connected directly to Com 1. This al-
lows communication capability regardless of unit condition. Any time power
is removed or turned
OFF , the audio selector will revert to fail-safe mode.
The power switch controls all audio selector panel functions, intercom and
marker beacon receiver.
Communications Transmit (XMT) Selection (2)
There are two pushbuttons associated with the transmitter selection. The two
lower buttons (item 2) control which transceiver is selected for transmit. The
top row of pushbuttons labeled COM 1 and COM 2 allows selection of the
receiver audio.
Push the lower button to select the desired COM transmitter.
The PMA8000-Series has an automatic selector mode. Audio from the se-
lected transceiver is automatically heard in the headsets and speaker (if se-
lected). You can check this function by switching from C
OM 1 transmitter to
Com 2 transmitter by pressing the C OM 2 transmitter selector pushbutton.
Note that the associated Com 2 receive pushbutton enunciator light that is
202-890-0000 11 PMA8000-Series Pilot Guide
This will allow the service technician to provide any other suggestions for
identifying the problem and recommend possible solutions.
After discussing the problem with the technician and you obtain a Return
Authorization Number, ship product to:
PS Engineering, Inc.
Attn: Service Department
9800 Martel Rd
Lenoir City, TN 37772
(865) 988-9800 FAX (865) 988-6619
Email: [email protected]
Units that arrive without an RMA number, or telephone number for a
responsible contact, will be returned un-repaired. PS Engineering is
not responsible for items sent via US Mail.