Ps-engineering PMA7000CAP Installation Manual User Manual download pdf (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

Push

(Fail-Safe)

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

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

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

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