PS Engineering PMA6000M Instrukcje Operacyjne Pobierz pdf (Strona 4)

4 PMA6000-Mono Pilot Guide

lector change from C1 to C2. This ensures the pilot will never trans-

mit on a radio that he is not listening to.

In PMA6000-series units, Serial Number T03092 and above, when

switching the mic selector rotary switch from COM 1 to COM 2, while

COM 2 audio had been selected, Com 1 audio will continue to be

heard. This eliminates the pilot having to switch Com 1 audio back

on, if desired.

When switching from COM 1 to COM 2 while Com 2 has NOT been

selected, Com 1 audio will be switched off. In essence, switching the

mic selector will not effect the selection of Com audio.

Important: When the mic selector is in the full counter clockwise po-

sition, the PMA6000 power is removed, and it is in the FAIL-SAFE

mode. The pilot headset and microphone is connected directly to Com

Mic Selector Switch, Com 3 (6000C, and 6000MC)

In units designed to accommodate a third communications trans-

ceiver, placing the mic selector switch in the COM 3 position connects

the pilot and copilot to that radio. This is similar to COM 1 and COM

2, except that the swap mode is not active.

Swap Mode (Switch from Com 1 to Com 2 remotely)

With a yoke mounted, momentary switch, the pilot can change from

the current Com transceiver to the other by depressing this switch.

When "Swap Mode" is active, an LED annunciator will illuminate,

indicating that the Mic Selector switch position is no longer valid. To

cancel "Swap Mode," the pilot may either press the yoke mounted

switch again, or turn the Mic Selector Switch to the Com that is ac-

tive.

Split Mode (6000, 6000M)

Turning the rotary switch to COM 1/COM 2 places the PMA6000 into

"Split Mode". This places the pilot on Com 1 and the copilot on Com

2. Pilot and copilot are isolated from each other on the intercom, but

can use their respective radios simultaneously. An example of this

useful feature is when the pilot may want to talk to Air Traffic Con-

7 PMA6000 –Mono Pilot Guide

"Split" mode, only the passengers have intercom function.

ISO: (Up Position): The pilot is isolated from the intercom and is con-

nected only to the aircraft radio. He will hear the aircraft radio reception

(and sidetone during radio transmissions). Copilot and passengers will

hear the intercom and music on Entertainment 1, but not the aircraft radio

receptions or pilot transmissions.

ALL: (Middle Position): All parties will hear the aircraft radio, intercom,

and music from entertainment input #1. However, during any intercom

communications, the music volume automatically decreases when Soft-

Mute™ is active. The music volume increases gradually back to the origi-

nal level after communications have been completed.

CREW (Down Position): Pilot and copilot are connected on one intercom

channel and have exclusive access to the aircraft radios. They may also

listen to Entertainment 1. Passengers can continue to communicate with

themselves without interrupting the Crew and also may listen to Entertain-

ment 2. Anytime the PMA6000 is in either the COM 1/COM 2, COM 2/

COM 1, or TEL/COM 1, ("Split Mode") the pilot and copilot do not have

any intercom function. The passengers will maintain intercommunica-

tions.

Soft Mute

Soft Mute must be enabled during installation by jumpering top connector

pins 12 and N. A SPST switch can be installed between these pins for a

pilot selectable mute mode. Without this connection, music is not muted

during intercom activation. This “Karaoke Mode” prevents the music mut-

ing when a sing-along is desired. "Soft Mute" mode only applies to enter-

tainment input #1. Entertainment #2 does not mute.

Entertainment Input

The audio selector panel has provisions for up to two separate entertain-

ment input devices. Which device is heard is determined by the position of

the 3-position mode switch located in the center of the intercom section of

the audio panel. (See Table 1 for overview.)

While in the ISO (Isolate) mode, only the copilot and the four passengers

will hear entertainment device #1. In normal operation, whenever a person

speaks or if the aircraft radio becomes active, the music will automatically

mute and then will gradually return to the original listening level when the

radio or intercom activity ceases.

When in the ALL mode, all parties will hear the entertainment input #1.

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