Operating instructions

2 202-066-0002 Rev. 3, August 2007
OPERATION
GENERAL INFORMATION
SCOPE
This section provides detailed operating instructions for the PS
Engineering PMA6000C, and PMA6000M-C, Audio Selector
Panel/Intercom Systems. Please read it carefully before using
the equipment so that you can take full advantage of its capa-
bilities.
This guide is divided into four sections covering the basic op-
erating areas of the PMA6000 systems. They are: Audio Selec-
tor, Audio Selection, Intercom, and Marker Beacon Receiver
(PMA6000M-C only).
Audio Selector (All models)
Figure 1 Audio Selector
Through the use of two mo-
mentary and seven latched,
push-button, back-lit
switches, it is possible to se-
lect any or all receiver audio.
C1 and C2 are momentary switches.
When selected, an internal backlight will illuminate indicating
which audio source is selected. Because the rotary switch con-
trols what transceiver is being heard by the pilot and copilot
(the crew), "Cl" (Com 1) and "C2" (Com 2) push-buttons are
of the momentary type and do not remain in when selected.
This is also part of the "auto function." You will always hear
the audio from the transceiver that is selected by the rotary mic
selector switch.
The users can identify which receivers are selected by noting
which push-button switches are illuminated. Push buttons la-