David Clark DC PRO-X Bedienungsanleitung

Quick Reference Guide

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T H A N K Y O U . . .

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Congratulations on your purchase of the

most technologically advanced electronic

noise-cancelling headset available. As

with all of our products, The DC PRO-X

Electronic Noise Cancelling Headset is

backed by extraordinary customer service

and support.

David Clark Company assumes full

responsibility for the quality and performance

of our products. We are committed to a

policy of service whereby we will respond

in a prompt and positive manner to any

question or issue regarding one of our

products.

David Clark Company products have set

the standards of performance and excellence

for pilots throughout the world. Your new

DC PRO-X continues this legacy. We have

earned a reputation for excellence; we

intend to keep it by continuing to deserve

your conﬁdence.

Richard M. Urella, President

Thank you for purchasing the DC PRO-X

Futura Med w/Bernard Fashion

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FITTING

Hybrid Electronic Noise-Cancellation Technology

Your DC ONE-X headset features leading-edge Hybrid

Electronic Noise-Cancelling Technology (ENC) with feed-

forward and feed-back technology for superior active noise

reduction. Feed-forward noise cancelling is accomplished through

an exterior microphone in the ear dome that is isolated from the

speaker. The exterior microphone acquires the noise before it gets

to the ear. Feed-back noise cancelling is performed by the internal

microphone placed near the speaker. The signals are then inverted

to produce a reverse, ‘anti-noise’ signal. This hybrid technology

results in unsurpassed active noise reduction performance.

External

Microphone

Internal

Speaker

Internal

Microphone

Ampliﬁer

Bluetooth &

Audio DSP

Inversion

Circuit

Inversion

Circuit

External Noise Signal

Internal Noise Signal

Cancellation Processor

HYBRID ENC TECHNOLOGY

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Anti-Noise

Signal

HYBRID

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H E A D S E T

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DC PRO-X Features

Futura Med w/Bernard Fashion

Approved

FAA TSO-C139

Bluetooth

Control

Module

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CONTROL MODULE

F E A T U R E S

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Technologically Advanced. Intelligently Designed.

1. Very light, yet rugged alloy headband and suspension

2. Fully adjustable suspension assembly for personalized comfort

3. Ultra-soft leatherette head pad with breathable, vented design

4. Swivel hinge stirrups disperse clamping pressure for secure yet

comfortable ﬁt

5. Plush, ‘rest on ear’, Dura-Stitched leatherette ear seals reduce

heat build up

6. Hybrid ENC technology for best-in-class active noise attenuation

7. Digital Signal Processing (DSP) Technology provides high-ﬁdelity

audio for superior communications and music listening

8. M-55 Electret Microphone with enhanced noise cancelling

9. Full ﬂex boom for precise mic placement

10. Bluetooth®wireless technology provides seamless integration

for connecting to cell phones, MP3, tablets or other personal

electronic devices

11. Collapsible design for compact storage in David Clark

headset bag

DC PRO-X Features

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CONTROL MODULE

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Control Module - Quick Reference Guide

Power On/Off

Volume

Controls

Bluetooth

Mono/Stereo

Switch

Auto Shutoff

Switch

The Control Module is powered by two

(2) ‘AA’ batteries for up to 50 hours of

continuous use.

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CONTROL MODULE

F E A T U R E S

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Power

Press and hold for 2 seconds to turn

unit on or off:

•Solid Yellow: Initializing

•Flashing Green: On

•Flashing Red: On, Low Batteries

Power (LED 'Dark' Mode)

•First, press and hold Bluetooth®

button, then press and hold the

Power button

•Power and Bluetooth®LED will turn

ON yellow

•Release the Power ON button

•Continue to hold Bluetooth®button

until yellow Power ON LED turns

OFF

•Release Bluetooth®button

•Control Module is now in 'Dark'

mode (no ﬂashing Power LED).

Note that 'Low Batteries' red ﬂashing LED

will still function in 'Dark' mode.

Volume Up/Down

•Adjust listen level volume up

or down

•Left/right adjustments are

independent

•Only usable when power is ON;

Levels default to max when unit

is OFF

Mono/Stereo

•Set per type of intercom/audio

panel (factory default is “Mono”)

Auto Shutoff

When set to ON, unit will turn off

automatically after 5 minutes when:

•Intercom/audio panel turned off

•Not connected to intercom/audio

panel

•Not in a phone call

•Factory default is “OFF”

Bluetooth®Wireless Technology

Press and hold for 2 seconds to turn on

Bluetooth®Wireless Technology:

•Flashing Purple: Initializing/Mute

Disabled

•Flashing Green: On, Not Connected

•Flashing Yellow: Pairing Mode

•Flashing Blue: Paired and

Connected/Mute Enabled

To Pair:

•Turn Bluetooth®Wireless

Technology on (ﬂashing green)

•Press Bluetooth®Wireless

Technology button to enter

pairing mode (ﬂashing yellow)

•Search for devices from your

phone/device

•Select DC PRO-X and initiate

pairing on your device

•If prompted for PIN code,

enter 0 0 0 0

Control Module - Quick Reference Guide

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CONTROL MODULE

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Control Module Operation

1. Fail Safe - if batteries are dead or the unit is turned off, microphone

and earphones will function when connected to aircraft intercom.

2. The DC PRO-X headset is shipped with the Auto Shutoff feature OFF.

In this mode, the Hybrid ENC will function whenever the power is ON.

3. When Auto Shutoff is set to ON, unit will turn off automatically after 5

minutes when:

•Intercom/audiopanelturnedoff

•Notconnectedtointercom/audiopanel

•Notinaphonecall

4. Auto shutoff can be enabled/disabled via a small switch located under

the batteries (see Quick Start diagram page 6).

5. Cell Phone Interface

 •UseoftheBluetooth®wireless technology cell phone feature while

plugged into aircraft intercom is not recommended and may violate

applicable regulations

 •Allintercompartieshearcellphoneoutboundaudiobutcellphone

recipient’s voice is heard only by the headset connected/paired to

the cell phone

 •Sidetoneisalwayspresent

 •BrieypressingtheBluetooth®wireless technology button will

answer or terminate a call (if supported by the cell phone)

 •Cellphonereceiveaudioisnotmutedwhenreceivingatransmission

from ATC or intercom

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H E A D S E T

CONTROL MODULE

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Control Module Operation (cont.)

6. Music Listening

The Bluetooth®wireless technology feature allows you to listen to your

favorite music when paired with cell phones, MP3, tablets, or other

compatible devices. When listening to music brieﬂy pressing the Bluetooth

button will enable/disable muting:

 •Flashingblue(default):WhenreceivingtransmissionfromATCor

intercom, music will mute to prioritize communication. Once transmission

is completed, music audio will gradually return to the previously set

volume level. A falling two-tone chime is heard when entering this mode.

 •Flashingpurple:Musicwillnotmutewhentransmissionisreceivedfrom

ATC or intercom. A rising two-tone chime is heard when entering

this mode.

Each time the DC PRO-X is powered 'ON', this setting will revert to the

default (muting) mode.

For DC PRO-XP (Panel Mount) Model Only

 •Powercanbeprovidedbytheaircraftwhenusingthe6-pinRedel

connector (11-30 VDC)

 •Whenpoweredbyaircraft,powerLEDwillbesolidgreen

 •Ifexternalpowerislost,headsetwillreverttobatterypower

 •Headsetwillnotautomaticallyturnonwhenexternalpowerisapplied

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FITTING

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HYBRID ENC TECHNOLOGY

Proper Fitting

The advanced suspension system of the DC PRO-X is designed for

a simple and comfortable ﬁt. Proper ﬁt is necessary for maximum

effectiveness. The headset should be worn so that the head pad lightly

touches the top of the head. Adjust the sliding assembly on each

side as necessary (see Fig. 1), keeping slide positions equal on

either side, until the center of the ear phone aperture within the

ear seal is directly aligned with the ear canal.

The ultra-soft memory foam of the ear seal will conform to the

contours of the ear to provide an adequate seal. While in the presence

of noise, turn on the ANR circuitry and then adjust headset and ear

seal position for lowest noise heard, allowing optimum performance

of the Hybrid ENC technology for communications and music listening.

To adjust microphone placement, adjust boom up/down and in/out by

rotating and ﬂexing the boom as necessary. Ideal microphone place-

ment is 1/8” from the lips, as this will provide maximum intelligibility

and ambient noise rejection. Fig. 1

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