PS Engineering PMA7000CAP Installation Manual - Manual (Page 18)

PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual for Civil Air Patrol
200-072-0004 Page 3-1 Rev. 4, Sept. 2000
Section III OPERATION
GENERAL INFORMATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PMA7000M-S, and
PMA7000S Audio Selector Panel/Intercom Systems, CAP versions. Please read it carefully
before using the equipment so that you can take full advantage of its capabilities.
This section is divided into four sections covering the basic operating areas of the PMA7000M-
S systems. They are Audio Selector, Transceiver Selection, Intercom, and Marker Beacon
Receiver (7000M-S only).
High
Low
Test
Iso
All
Crew
V
o
l
u
m
e
Push
(Fail-Safe)
O
Com 1 Nav 1
Nav 2
MKR ADF
Com 2 ICS
DME
SPR
Transmit Swap
Com 3
Com 2
Com 1 Com 1/2
Com 1/3
Com 2/3
R
Mic Selector
Intercom Vol.
Intercom Mode Sel.
Marker Indicator Lamps
Marker Mode Selector
Receive Audio Selectors
Swap Indicator
Speaker Switch Crew ICS/
Music 1 Mute
TX Indicator
ENGINEERING
INCORPORATED PMA7000M-S
M I
Photo
Detector
Mounting
Screw
Com3
Figure 3-1 PMA7000M-S controls (CAP Version)
3.2 Audio Selector (All models)
Receiver audio is selected through two momentary and six latched, push-button, backlit
switches. Com 1 and Com 2 are the momentary switches.
Because the rotary microphone selector switch controls what transceiver is being heard, the
Com l and 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 for transmit by the rotary mic selector switch.
The users can identify which receivers are selected by noting which of the switch LEDs are
illuminated. Push buttons labeled Nav 1, Nav 2, COM 3, DME, MKR (Marker), ADF and
SPR (Speaker) are "latched" type switches. When one of these buttons is pressed, it will stay in