PS Engineering
PCD7100 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
Section III OPERATION
GENERAL INFORMATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PCD7100-I, Intercom Systems
with integrated Compact Disc (CD) player, and PCD7100-P, CD player only. Please read it carefully be-
fore using the equipment so that you can take full advantage of its capabilities.
Figure 3-1 PCD7100 controls
3.2
Power Switch (Fail Safe Operation)
Unit power is turned on and off by pushing the intercom volume knob. In the
OFF
or "
EMG
" position, the
pilot is connected directly to the aircraft radios. This allows communication capability regardless of unit
condition. Any time power is removed or the unit turned
OFF
, the intercom will be placed in the fail-safe
mode.
3.3 Intercom
Operation
PUSH
MUTE
CONTROL
PUSH
ON-OFF
INTERCOM MODE
PLAY SKIP FWD SKIP BACK STOP
EJECT
MUSIC
VOLUME
INTERCOM
VOLUME
3.3.1 Intercom Volume Control (11950, 11951, 11956, 11957)
The ICS volume control knob (left side) adjusts the loudness of the intercom for the pilot and copilot only.
It has no effect on selected radio levels, music input levels or passengers' volume level.
Adjust the radios and intercom volume for a comfortable listening level for the pilot. Most general aviation
headsets today have built-in volume controls; therefore, passenger volume can be adjusted at the headset.
3.3.2
IntelliVox
® VOX-Squelch
No adjustment of the
IntelliVox
® squelch control is necessary. Through independent signal processors on
each microphone, the ambient noise appearing in all microphones is constantly being sampled. Non-voice
signals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the
intercom.
The system is designed to block continuous tones, therefore people humming or whistling in monotone
may be blocked after a few moments.
For best performance, the headset microphone must be placed within ¼ inch of your lips, preferably
against them. It is also a good idea to keep the microphone out of a direct wind path. Moving your head
through a vent air stream may cause the
IntelliVox
® to open momentarily. This is normal.
For optimum microphone performance, PS Engineering, Inc. recommends installation of a Microphone
Muff Kit from Oregon Aero (1-800-888-6910). This will not only optimize VOX performance, but will
improve the overall clarity of all your communications.
200-971-0005
Page 3-1
Rev. 5, Dec. 2002
