Sennheiser PXC 250-II Manual de usuario
PXC 250-II
Stereo Headphones
Instruction manual
PXC250-II.book Seite 1 Montag, 18. April 2011 12:38 12
Contents
1
Contents
Important safety information ........................................... 2
PXC 250-II headphones ....................................................... 4
Delivery includes .................................................................. 4
Product overview ................................................................. 5
Putting the PXC 250-II into operation ............................. 6
Unfolding the headphones .......................................... 6
Inserting and changing the battery .......................... 7
Connecting the headphones ....................................... 7
Adjusting the headband .............................................. 8
Using the PXC 250-II ............................................................ 8
Adjusting the volume ................................................... 8
Switching NoiseGard on and off ................................. 9
Transporting the PXC 250-II ............................................10
Cleaning the PXC 250-II ....................................................11
Specifications ......................................................................12
Manufacturer Declarations ...............................................13
Thank you for choosing Sennheiser!
We have designed this product to give you reliable
operation over many years. Over 60 years of accu-
mulated expertise in the design and manufacture of
high-quality electro-acoustic equipment have made
Sennheiser a world-leading company in this field. Please
take a few moments to read these instructions carefully,
as we want you to enjoy your new Sennheiser products
quickly and to the fullest.
Important safety information
2
Important safety information
• Please read this instruction manual carefully and
completely before using the product.
• Make this instruction manual easily accessible to all
users at all times. Always include this instruction
manual when passing the product on to third
parties.
• Do not use the product in situations which require
special attention (e.g. in traffic or when performing
skilled jobs).
• Always keep the product dry and do not expose
it to extreme temperatures (normal operating tem-
peratures: 10°C/50°F to 35°C/95°F).
• Use the product with care and store it in a clean,
dust-free environment.
• The headphones contain magnets that generate a
magnetic field which could cause interference with
cardiac pacemakers and implanted defibrillators.
Keep the headphones at least 1.2” (3 cm) from
cardiac pacemakers or implanted defibrillators
• Please protect your hearing from high volume levels.
Sennheiser headphones also sound exceptionally
good at low volumes.
Intended use
Intended use of this product includes
• having read this instruction manual, especially the
chapter “Important safety information”,
• using the product within the operating conditions
and limitations described in this instruction manual.
“Improper use” means using the product other than as
described in this instruction manual, or under operating
conditions which differ from those described herein.
Important safety information
3
Safety instructions for standard batteries
If abused or misused, batteries may leak and, in extreme
cases, may even present an explosion and fire hazard.
Sennheiser does not accept any liability for damage
arising from abuse or misuse.
Keep away from children.
Do not short-circuit.
Do not heat above 70°C/158°F, e.g. do not
expose to sunlight or throw into a fire.
Do not mutilate or dismantle.
Do not continue to use defective batteries.
Immediately remove batteries from obviously
defective products.
Remove batteries from the product when it is
not used for extended periods of time.
Do not expose to moisture.
Do not charge non-rechargeable batteries.
PXC 250-II headphones
4
PXC 250-II headphones
The PXC 250-II are closed, dynamic, supra-aural stereo
headphones with NoiseGard active noise compensation,
designed for use with in-flight entertainment systems.
The combination of passive and active noise reduction
enables you to enjoy music even in noisy environments.
Comfortable to wear and easy to use, the sturdy,
foldable headphones are also ideal for use with portable
audio sources.
NoiseGardTM
The NoiseGard active noise compensation system is
based on the principle of cancelling out sound using
“anti-sound” (phase-inverted sound). Tiny microphones
pick up low-frequency ambient noise (up to 1 kHz) near
the ear. The NoiseGard electronics use this noise to
generate a sound wave which is the exact opposite
(IE: at the same level but polarity reversed – 180° out-
of-phase), the effect being that the polarity reversed
signal cancels most of the outside noise.
Delivery includes
1 PXC 250-II headphones
1transportcase
1 in-flight adapter
(3.5 mm double mono jack plug)
1 AAA size alkaline battery, 1.5 V
1 instruction manual
Product overview
5
Product overview
Overview of operating controls
LED indications
Headband
Ear pads
Audio cable
Battery compartment
– Volume + control
NoiseGard On – Off
switch with LED
Clip
LED Meaning Page
lights up red NoiseGard is switched on 9
flashes red Battery is almost flat 9
is off NoiseGard is switched off 9
쐋
Putting the PXC 250-II into operation
6
Putting the PXC 250-II into
operation
Unfolding the headphones
왘Separate the notched locking connection of the
headband by gently pulling it apart.
왘Unfold the headphones.
왘Turn the ear cups outwards by 90°.
WARNING! Magnetic fields can interfere with cardiac
pacemakers
The headphones contain magnets that
generate a magnetic field which could
cause interference with cardiac pace-
makers and implanted defibrillators.
왘Keep the headphones at least 1.2”
(3 cm) from cardiac pacemakers and
implanted defibrillators.
Putting the PXC 250-II into operation
7
Inserting and changing the battery
For powering the NoiseGard active noise compensation,
an AAA size battery is required.
왘Open the battery compartment .
왘Remove the flat battery (where applies).
왘Insert a new battery. Observe correct polarity when
inserting the battery.
왘Close the battery compartment . The cover lock
into place with an audible click.
Connecting the headphones
왘Connect the audio cable to the headphone socket
of your audio source.
You hear the sound from your audio source.
왘Slip on the in-flight adapter if you wish to use
the headphones with the in-flight entertainment
system of the aircraft.
For best product performance, we recommend
using a standard battery instead of a rechargeable
battery.
Music
Photos
Videos
Extras
Settings
ShuffleSongs
쐋쐋
PXC250-II.book Seite 7 Montag, 18. April 2011 12:38 12
Using the PXC 250-II
8
Adjusting the headband
For good noise attenuation and best possible comfort,
the headband has to be adjusted to properly fit your
head.
Using the PXC 250-II
Adjusting the volume
왘Use the –VOLUME + control to set the volume to
a comfortable level.
왘Wear the headphones so that
the headband runs over
the top of your head.
왘Adjust the length of the
headband so that
–theearpadsrest com-
fortably on your ears,
–a snug fit of the head-
band on the head is
ensured.
To ensure maximum noise attenuation, final
adjustment is best made in a noisy environment.
WARNING Hearing damage due to high volumes!
Listening at high volume levels for long
periods can lead to permanent hearing
defects.
왘Before putting the headphones on, set
the volume to a low level.
왘Do not continuously expose yourself to
high volumes.
Using the PXC 250-II
9
Switching NoiseGard on and off
To switch NoiseGard on:
왘Move the NoiseGard On – Off switch to the On
position.
The LED lights up red.
To switch NoiseGard off:
왘Move the NoiseGard On – Off switch to the Off
position.
The LED goes off.
When the battery is almost empty, the LED flashes
red. NoiseGard will continue to function for
approximately 2 hours.
When the battery is completely discharged, the
NoiseGard active noise compensation auto-
matically switches off. Audio will still be heard
through the headphones.
Vol –
Vol +
On
Off
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