Sony MDR-NC500D Operating Instructions Manual page 4
Noise-canceling headphones
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Also See for MDR-NC500D:
- User manual ,
- Product information (88 pages) ,
- Servise manual (38 pages)
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General
Type
Closed dynamic
Driver unit
40
mm. dome type
(CCAW
adopted)
Power handling capacity
lOOmW
Impedance
40
Q
at
I
kHz
Sensitivity
102
dB/mW
Frequency response
5
4
24,000 Hz
Total Noise Suppression Ratio*1
Approx.
20
dB*1
Power source
DC 3.7 V: Built-in lithium-ion
rechargeable baue!)',
2
x
LR6
(size
AA)
baueries. or
AC
power adaptor
Mass
Approx.
195
g
(6.9
oz)
Design and specifications are subject to change
without notice.
Specifications
No operation works
Set the POWER switch of the headphones to
"OFF," confirm the connections, and then set
the POWER switch back to "ON."
Reset the headphones.
• Insert a pointed object, such as the tip of a
clip, into the hole located under the RESET
button on the right housing, and press until
the button slightly rebounds.
Supplied accessories
Connecting cord (0.5 m, gold plated stereo mini
plug)
(I)
Connecting cord
(1.5
m, gold plated
L
type stereo
mini plug) (I)
Connecting cord with battery case
(I)
Carrying case
(I)
Plug adaptor for in-flight use*3 (single/dual)
(I)
Gold-plated unimatch plug adaptor (stereo phone
plug
+-+
stereo mini jack) (I)
Sony LR6 (size AA) batteries (2)
AC power adaptor (1)
Operating Instructions (I)
Product Information (I)
Startup guide (I)
Card warranty
(I)
*J Under the Sony measurement standard.
For details about the Total Noise Suppression
Ratio amount for each mode, refer to the
Product Information booklet.
*2 Equivalent to approx. 99 % reduction of energy
of sound compared with not wearing
headphones (NC MODE A).
*3 May not be compatible with some in4flight
music services.
Precautions
Troubleshooting
What is noise canceling?
The noise canceling circuit actually senses outside
noise with built-in microphones and sends an
equal-but-opposite canceling signal to the
headphones.
Note on headphones
Preventing hearing damage
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.
If you have any questions or problems
concerning the system that are not covered in
this manual, please consult your nearest Sony
dealer.
The headphones contain a noise canceling circuit.
No sound
Turn on the headphones.
When connecting the connecting cord with
battery case, turn on the power of the battery
case.
Check that the rechargeable battery is not
depleted.
When connecting the connecting cord with
battery case, check that the batteries have not
expired.
Check the connection of the headphones and
the A V equipment.
Check that the connected AV equipment is
turned on.
Turn up the volume of the connected AV
equipment.
The noise canceling effect may not be
pronounced in a very quiet environment, or
some noisc may
be
heard.
Thc noise canceling effect may vary depcnding
on how you wear the headphones.
The noise canceling function works for noise in
the low frequency band primarily. Although
noise is reduced, it is not canceled completely.
When you use the headphones in a train or a
car. noise may occur depending on street
conditions.
Howling may occur if you do not wear the
headphones correctly.
Howling may occur if you place an object such
as finger close to inside of the headphones.
Keep it away from the headphones.
Mobile phones may cause interference and
noise. To avoid interference, use noise
canceling feature only with wireless
transmitters turned off (Airplane Mode).
Interference noise can also occur from nearby
mobile phones. Should this occur, locate the
headphones further away from the mobile
phone.
Notes on usage
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.
Do not leave the stereo headphones in a
location subject to direct sunlight, heat or
moisture.
Do not listen with the headphones while
driving or cycling
As your headphones reduce surrounding sound, it
may cause a traffic accident. Also avoid using
them where hearing must not be impaired, for
example, at a railroad crossing, a construction
site, etc.
Power does not turn on
Check if the battery has expired (the POWER
indicator dims) .
• [f the power does not turn on, even after
charging the headphones. the rechargeable
battery may be damaged. Consult your place
of purchase or a Sony dealer in this case.
Replace the alkaline batteries in the battery
case with new ones.
Muffled sound
Turn down the volume of the connected A V
equipment.
Charge the headphones.
Replace the alkaline batteries in the battery
case with new ones.
Connector
The unit contains a rechargeable Lithium-Ion
baltery. For environmental conservation. be sure
to remove the built-in rechargeable batteries from
the unit before disposing. and dispose
of
the
hatteries appropriately.
Disposing of the unit
1
Pull ofT the earpad on the left housing.
and unwind the two screws located as in
the illustration.
Note
Be careful not to break the internal wires.
Note
Be careful not to break the internal wires
when disconnecting the connector.
2
Turn down the left housing and pull off
the outer cover.
Note
Remove (he rechargeable battery. taking care
not
(0
damage it.
3
Keep the cord away from the rechargeable
battery.
First. remove the adhesive tape on the surface
of the batlery. Then. loosen the cord just
beside the rechargeable battery.
4
Pull out the connector on the board.
5
Remove the rechargeable battery.
The rechargeable battery is firmly installed by
adhesive tape. Take out the rechargeable
battery by lifting up in the direction of the
arrow shown in the illustration.
10
hours
<>
Approx. hours*1
Battery life
Son
v
Alkaline
LR(; (size AA) b..lIery
Battery type
'Q'Tips
The power supply of ,he
n.:ch;lrgeable
hattery is
consullled firs!. unless the b,lllcry runs oul.
If
you connect
and turn on the
cOlmccling
cord with
the hanery (,:asc in
"dv,mel.'
when the rcchargeahk'
haltery is low. you can usc the headphones
uninterrupted, even after the ballcry in the
headphones runs oul.
See sleps 2 104 of "Listening 10 music" for
the following selling sleps.
At"cr use.
SCi
the POWER switch of both the
headphones and the ballcry case to ;'OFF:'
The housings rotate to make them flat for easy
storage in the carrying case (supplied), or in a scat
pocket. Restore to their usual position before using.
5
Set the POWER switch of the
headphones to "OFF:' and then set the
POWER switch of the battery case to
"ON."
The POWER indicator on the battery case
lights up green.
?
POWER switch
-e
~
POWER indicator
---;+~
Note
Because the supplied bauery was included in the
package from the time of manufacture (as a
convenience to the user). it is possible thai the
battery life may be somewhat depleted hy the time
of purchase. The actual life of the supplied battery
may be shorter than the standard lime described in
this manual when using a fresh hattery.
Turn oil the power of the headphones.
After use
' I
Output:.ltl kHz.O.lIllW+O.1 mW
': Time Slated ..hove may vary. <.Iepl:"nding ou ambient
tel11perawre or conditions of use.
Notes
The use of manganese batlcril's is nol recolllillended.
since this type of banery has an extremely short
usae.ctll11C
1'h. . . . - battery case
supplies the power to Ihe
headphone:-. for operation purposes only.
It
docs not
charge the internal reehargcable battery in the
headphones.
The POWER indil'alor
of
the battery case becomes
dim when the baltery life is readling the limit
Replace the ballery with new ones at the time.
The supplied connecling cord with ballery case is
only for the$e headphones. Do not connect to mher
equipment.
Flat Storage
Putting the headphones
in the carrying case
Rotate the housings
to
be flat before putting them
in lhe carrying case.
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