Sony MDR-NC8 Operating Instructions

Noise Canceling
Headphones
Operating Instructions
4-431-886-21(1)
© 2012 Sony Corporation Printed in Malaysia
MDR-NC8
How to use/使⽤⽅式/사용 방법
Unfolding the headphones/伸展⽿機/헤드폰 언폴딩하기
1
Installing a battery/安裝電池/배터리 설치하기
2
OPEN
Tactile dot (on the left)
觸感圓點（在左邊）
돌기(왼쪽)
Connecting/連接/연결하기
3
Digital music player, etc.
數位⾳樂播放器等
디지털 음악 플레이어 등
Turning on the power/開啟電源/전원 켜기
4
After use
Turn off the power of the headphones
使⽤後
關閉⽿機電源
헤드폰을 사용한 후
헤드폰의 전원을 끕니다
(1)
for dual jacks for stereo mini jack
適⽤於雙聲道插孔 適⽤於⽴體聲迷你插孔
듀얼 잭용 스테레오 미니 잭용
5 Wearing/配戴/착용하기
Notes on headphones
English Noise Canceling Headphones
High volume may affect your
WARNING
hearing. For traffic safety, do not
use while driving or cycling.
To reduce the risk of electrical
shock, do not open the cabinet.
As headphones reduce outside sounds, they
Refer servicing to qualified may cause a traffic accident. Also, avoid
listening with your headphones in situations
personnel only.
where hearing must not be impaired, for
Do not expose the battery to excessive heat
example, a railroad crossing, a construction
such as direct sunlight, fire or the like.
site, etc.
You are cautioned that any changes or
Note on static electricity
modifications not expressly approved in this
manual could void your authority to operate
In particularly dry air conditions, noise or
this equipment.
sound skipping may occur, or mild tingling
may be felt on your ears. This is a result of
The validity of the CE marking is restricted
to only those countries where it is legally static electricity accumulated in the body, and
enforced, mainly in the countries EEA not a malfunction of the headphones.
(European Economic Area). The effect can be minimized by wearing
clothes made from natural materials.
If you have any questions or problems
Notes on use concerning the system that are not covered
in this manual, please consult the nearest
Sony dealer.
What is noise canceling?
The noise canceling circuit actually senses
outside noise with built-in microphones and
sends an equal-but-opposite canceling signal
Troubleshooting
to the headphones.
Notes on the noise canceling No sound
–
function
Check the connection of the headphones
and the equipment.
–
Adjust the earpads so that they cover your
–
Check that the connected equipment is
ears, otherwise noise canceling will not
turned on.
function properly.
–
– Turn up the volume of the connected
The noise canceling effect may vary
equipment.
depending on how you wear the
headphones.
The noise canceling effect is not
–
Do not cover the microphone of the
sufficient
headphones with your hands. The noise
–
canceling function may not work properly. The noise canceling function is effective
in low frequency ranges such as airplanes,
trains, or offices (near air-conditioning, etc.)
and is not as effective for higher frequencies,
such as human voices.
–
Turn on the headphones.
Distorted sound
–
Turn down the volume of the connected
equipment.
Microphone
Power does not turn on
–
After you turn on the power of the
–
Check if the battery has expired (the POWER
headphones, you may hear a slight hiss. This
indicator lights off) and the battery is
is the operating sound of the noise canceling
inserted in the correct orientation. Replace
function, not a malfunction.
the battery with a new one or reinsert the
–
The noise canceling function works for
battery in the correct orientation.
noise in the low frequency band primarily.
Although noise is reduced, it is not canceled
completely.
–
The noise canceling effect may not be Features
pronounced in a very quiet environment, or
some noise may be heard.
–
Noise canceling headphones reduce
–
When you use the headphones in a train or
unwanted ambient noise and provide
a car, noise may occur depending on street
a quieter environment to enhance your
conditions.
listening experience.
–
Mobile phones may cause interference
–
Foldable and swivel design for easy
and noise. Should this occur, locate the
portability.
headphones further away from the mobile
–
Able to use as a regular headphones even
phone.
when the POWER switch is set to "OFF".
–
Neodymium magnet delivers powerful
Notes on using on the airplane
sound.
Do not use the headphones when use of
–
Supplied plug adaptor for easy connectivity
electronic equipment is prohibited or when
to stereo or dual jack for in-flight
use of personal headphones for in-flight
entertainment services.
entertainment services is prohibited. –
Long battery life - approx. 80 hours with AAA
alkaline battery.
Notes on handling
–
Because the headphones are designed to
fit closely in your ears, forcing them against
Specifications
your ears may result in eardrum damage.
Avoid using the headphones where they are
liable to be struck by people or other objects,
General
such as a ball, etc.
Type Dynamic, closed
–
Pressing the headphones against your ears
Driver units 30 mm, dome type (CCAW
may produce a diaphragm click sound. This is
adopted)
not a malfunction.
– Power handling capacity
Clean the headphones with a soft dry cloth.
– 50 mW
Do not leave the plug dirty otherwise the
Impedance 17 Ω at 1 kHz (when the
sound may be distorted.
– power is on)
Be sure to consult a Sony dealer when the
19 Ω at 1 kHz (when the
earpads become dirty or damaged, or when
power is off )
the headphones require repair work.
Sensitivity 95 dB/mW (when the power is
–
Do not leave the headphones in a location
on)
subject to direct sunlight, heat or moisture.
– 98 dB/mW (when the power is
Do not subject the headphones to excessive
off )
shock.
– Frequency response
Handle the driver units carefully.
30 Hz – 20,000 Hz
–
If you feel drowsy or sick while using this
Total Noise Suppression Ratio
headphones, stop use immediately.
Approx. 10 dB
Cord Approx. 1.2 m OFC Litz cord
Plug Gold-plated L type stereo mini
plug
Power source DC 1.5 V, 1 × R03 (size AAA)
battery
Mass Approx. 170 g including
battery, not including cord
Battery life
3)
Battery Approx. hours
Sony alkaline battery 80 hours 4)
LR03 SIZE AAA
Sony manganese 40 hours 4)
battery
R03 SIZE AAA
When the battery is low
Replace the battery with a new one when the
POWER indicator blinks or lights off.
Included items
Headphones (1)
Plug adaptor for in-flight use 5) (single/dual) (1)
Operating Instructions (1)
1) Under the Sony measurement standard.
2) Equivalent to approx. 90% reduction of
energy of sound compared with not wearing
headphones.
3) 1 kHz, 0.1 mW + 0.1 mW output
4) Time stated above may vary, depending on
the temperature or conditions of use.
5)
May not be compatible with some in-flight
entertainment services.
Design and specifications are subject to
change without notice.
1)
2)