PS Engineering PMA6000B - Manual (Page 16)

PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 3-1 Rev 6, Feb. 2013
Section III OPERATION
GENERAL INFORMATION
3.1 GENERAL INFORMATION
This section provides detailed operating instructions for the PS Engineering PMA6000B, 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 guide is divided into sections covering the basic operating areas of the PMA6000B systems. They
are: Audio Selector, Audio Selection, Intercom, and Marker Beacon Receiver (if equipped).
Figure 3-1 PMA6000B without Marker (-0100)
Figure 3-2 PMA6000B with Marker (-0300)
3.2 Power, Fail Safe Operation (1)
Unit power is turned on and off by pressing the unit Volume control knob (smaller concentric knob on left
side of unit) In the
OFF or " FAIL - SAFE " position, the pilot is connected directly to Com 1 and unswitched
input #1, allowing transmit receive and alert capability regardless of unit condition. Any time power is
removed or turned
OFF , the audio selector will be placed in the fail-safe mode. In fail-safe mode, the pilot
headset is connected directly to Com 1.