Sony MDR-NC05 User Manual

Connect the headphones to the AV
equipment.

Turn on the power of the headphones.
The POWER indicator lights in red.
When the power is turned on, ambient
noise is reduced, and you can listen to
music more clearly at a lower volume.

Put on the headphones so that the ear
pads cover your ears.

Turn on the power of the AV equipment.

• The supplied plug adaptor can be connected to

dual and stereo mini jacks.

• Do not use the headphones when use of

electronic equipment is prohibited or when use
of personal headphones for in-flight music
services is prohibited.

If you have any questions or problems concerning
the system that are not covered in this manual,
please consult the nearest Sony dealer.

Turn off the power of the headphones.

• The noise canceling function is only effective for noise in

the low frequency band.   Although noise is reduced, it
is not canceled completely.

• Do not cover the microphone of the headphones with

your hands. The noise canceling function may not work
properly.

• If you cover the microphone of the headphones with

your hands, howling may occur.
In this case, move your hands away from the
microphone.

• You can use the headphones without turning on the

power.  In this case, the noise canceling function is not
active, and the headphones operate as passive
headphones.

• With some discs or tapes, the sound may be distorted

when you activate the noise canceling function.
In such cases, turn down the volume or turn off the
sound effect such as Digital MEGA BASS function etc.

Open the lid of the battery case on the
right inner side of the headphone.

Insert one R03 (size AAA) battery by
matching the + and – on the battery to the
+ and – in the battery case.

Close the lid.

Replace the battery with a new one when the
POWER indicator dims.

3-861-044-12(1)

Sony Corporation © 1997   

Printed in Malaysia

This device complies with Part 15 of the FCC
Rules.  Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.

You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate this
equipment.

The model number is located at the left inner side
of the headband.
The serial number is located inside the battery box.
Record these numbers in the spaces provided
below. Refer to them whenever you call upon your
Sony dealer regarding this product.

Model No. MDR-NC05 
Serial No. 

Hold the battery case with your right hand and
fold the headphones toward you one after another
as illustrated.

Hold the battery case with your right hand and
unfold the headphones toward you one after
another as illustrated.

Do not pull open this way.

• Noise canceling headphones reduce ambient

noise, and provide a quieter environment to
enhance audio entertainment.  Ambient sound is
synthesized with an anti-sound signal produced
by the noise canceling circuit, and reduced.
(Over 10 dB is reduced at 300 Hz.)

• Compact  folding style
• Neodymium magnets are used to deliver

powerful sound.

• Operates as passive headphones when noise

canceling circuit is not activated.

• Plug adaptor is supplied to connect directly to

stereo or dual jack of in-flight music services.

• Clean the headphones with a soft dry cloth.
• Do not leave the plug dirty otherwise the sound

may be distorted.

• Be sure to consult a Sony dealer when the

earpads become dirty or damaged, or when the
headphones require repair work.

• The CE mark on the unit is valid only for

products marketed in the European Union.

• Do not leave the stereo headphones in a location

subject to direct sunlight, heat or moisture.

Avoid using headphones at high volume.  Hearing
experts advise against continuous, loud and
extended play.  If you experience a ringing in your
ears, reduce the volume or discontinue use.

As your headphones reduce outside sounds, it
may cause traffic accident. Also avoid using them
where hearing must not be impaired, for example,
at a railroad crossing, a site of construction, etc.

• Check the connection of the headphones and the

AV equipment.

• Check that the connected AV equipment is

turned on.

• Turn up the volume of the connected AV

equipment.

• Turn down the volume of the connected AV

equipment.

• Replace the battery.

• Check if the battery has expired (the POWER

indicator dims). Replace the battery with a new
one.

• If you cover the microphone of the headphones

with your hands, howling may occur.
In this case, move your hands away from the
microphone.

• Check if the power is turned on.  Set the POWER

switch to ON if the power is turned off.

• The noise canceling function is only effective for

noise in the low frequency band.   Although
noise is reduced, it is not canceled completely.

• If you cover the microphone of the headphones

with your hands, the noise canceling function
may not work properly.

• You may not notice the noise canceling effect in

quiet locations or locations with particular types
of noise. Also in some cases, you may find the
external noise get louder. In such cases set the
power switch to OFF.

General
Type

Dynamic, open

Driver units

30 mm dia: dome type

Impedance

17 ohms at 1 kHz
(when the power is on)
35 ohms at 1 kHz
(when the power is off)

Sensitivity

100 dB/mW (when the power is
on)
98 dB/mW (when the power is off)

Frequency response

30 – 15,000 Hz

Frequency range of active noise attenuation

40 – 1,500 Hz, more than 10 dB at
300 Hz

Cord

1.5m with a gold-plated stereo
mini plug

Power source

DC 1.5 V, 1 

×

 R03 (size AAA)

battery

Mass

Approx. 125 g (4.4 oz) including
battery

Supplied accessories
Plug adaptor for in-flight use* (single/dual) (1)

* May not be compatible with some in-flight music

services.

Design and specifications are subject to change
without notice.

Operating Instructions

Mode d’emploi (verso)

Sony alkaline battery LR03/
AM-4 (N)
Sony battery R03/UM-4 (NU)

20 hours

10 hours

2

1

L

R

2

1

L

R

L

R