To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
To avoid electrical shock, do not open the
cabinet. Refer servicing to qualified
personnel only.
This equipment complies with the essential
requirements of the Directive 1999/5/EC Radio
and Telecommunications Terminal Equipment
Directive.
This product is intended to be used in the
following country:
Italy
Thank you for purchasing the Sony
MDR-RF415RK Wireless Stereo Headphone
System. Before operating the unit, please read
this manual thoroughly and retain it for future
reference.
Some features are:
• Wireless system that allows you to listen to a
program free from the restriction of a cord
• High fidelity sound reproduction
•A compact transmitter with an AC power
adaptor (supplied) enables simple charging of
the headphone battery. Just by placing the
headphones on the transmitter, headphone
battery can be charged.
• Comfortable Supra-aural headphones with self
adjusting head band
• Automatic ON/OFF function on headphones
to preserve battery power
GB
2
Notes on receiving
Table of contents
performance
The system for this equipment utilizes very high
frequency signals in the 400 MHz band so the
receiving performance may deteriorate due to the
surroundings. The following examples illustrate
conditions that may reduce the possible receiving
range or cause interference with reception.
• Inside a building with walls containing steel
beams.
• Area with many steel file cabinets, etc.
• Area with many electrical appliances capable
of generating electromagnetic noise.
• Transmitter is placed on a metal instrument.
• Area facing a roadway.
• Noise or interfering signals exist in the
surroundings due to radio transceivers in
trucks, etc.
• Noise or interfering signals exist in the
surroundings owing to wireless
communication systems installed along
roadways.
• Unimatch plug adaptor (stereo mini jack y
stereo phone plug)
transmitter
1 Connect the transmitter to audio/video
equipment. Select one of the hookups
below depending on the jack type:
A To connect to a headphones jack
Transmitter
OFF ON
FILTERNOISE
Right channel
(red)
Connecting cord
(supplied)
RBAL
AUDIO IN
to AUDIO IN
A jacks
DC IN 9V
123
CHANNEL
Left channel
(white)
• Connecting cord (phono plugs y stereo mini
plug), 1 m
GB
4
Unimatch plug
adaptor
(supplied)
to headphones
jack (stereo
phone jack)
* WALKMAN is a registered trademark of Sony
Corporation.
to headphones
jack (stereo
mini jack)
CD Walkman,
MD Walkman,
WALKMAN*,
VCR, etc.
B To connect to LINE OUT or REC OUT
jacks
Transmitter
C To connect to TV, etc.
If noise occurs when the transmitter is
connected to your TV or VCR, set the
NOISE FILTER switch to ON.
to AUDIO IN
B jack
OFF ON
FILTERNOISE
Left channel
(white)
RBAL
AUDIO IN
Connecting cord
(supplied)
Right channel
(red)
to LINE OUT or REC
OUT jacks
Stereo system, VCR,
etc.
DC IN 9V
123
CHANNEL
Transmitter
to AUDIO IN
A jacks
OFF ON
FILTERNOISE
Right channel
(red)
Connecting cord
(supplied)
RBAL
AUDIO IN
DC IN 9V
123
CHANNEL
Left channel
(white)
to stereo mini jack
TV, etc.
Notes
• If you connect the transmitter to LINE OUT or
REC OUT jack of an audio reproducer such as an
MD player or CD player, do not set the NOISE
FILTER switch to ON. Otherwise, the volume will
be limited.
• The NOISE FILTER switch is active only in the
case of the connection shown in diagram A on
page 4 and C. In diagram B, the switch has no
effect.
• When the transmitter is placed on or near a TV, it
may pick up a noise.
In such case, place the transmitter away from the
TV.
continue to next page
GB
5
Continued
2 Connect the transmitter to an AC outlet
using the supplied AC power adaptor.
Notes
• Use only the supplied AC power adaptor. Do not use
any other AC power adaptor.
Polarity of the plug
• Keep the AC power adaptor cord as far away from the
transmitter as possible. If the cord is positioned near
the transmitter, noise may occur.
• When you connect the transmitter directly to a
monaural earphone jack, the audio signal will not be
output through the right channel. In such a case, use
the separately sold PC-236HG plug adaptor.
• If the connected equipment has the AVLS (Automatic
Volume Limiter System) function, be sure to turn the
function off when using the transmitter. Otherwise,
you will have to turn up the volume of the
headphones, and that may cause noise.
Charging the
headphone battery
Using the headphones for the first time
When you use the headphones for the first time,
charge the battery in the following manner.
1 Connect the transmitter to a power
source.
Transmitter
to an AC outlet
To DC IN
9 V jack
AC power adaptor
(supplied)
Place the headphone on the transmitter such that
the charging pins on the transmitter engage the
charging contacts on the bottom of the right-hand
housing.
The charge indicator on the transmitter will light
in green to indicate that the battery is being
charged.
GB
6
To recharge the headphone battery after
use
Since little electric current is used for charging,
there is no need to worry about overcharging.
Charging and using hours
Approx. charging
hours
1
24**
* at 1 kHz, 1 mW + 1 mW output
** The hours required to fully charge empty batteries
Approx. using time*
55 minutes
23 hours
N Operating the system
Listening to a program
1 First turn on the audio/video
equipment and start playing.
2 Remove the headphones from the
transmitter.
The transmitter’s power indicator will
light in red.
3 Select the radio frequency with the
CHANNEL selector switch.
123
CHANNEL
continue to next page
GB
7
Continued
4 When you put on the headphones the
headphone power turns on
automatically.
5 Turn up the volume to a moderate level
with the VOL control, then tune the
headphones in to the frequency of the
transmitter with the TUNING control
until you can hear the audio signal
loud and clear.
TUNING
control
Sending RF signals from the Transmitter
The transmitter starts sending the RF signals
automatically, when it detects audio signals from
the equipment connected.
If it does not detect an audio signal for more than
approximately four minutes, the transmitter will
stop sending RF signals, and the power indicator
turns off.
When the transmitter receives an audio signal
again, it starts sending the RF signals, and the
power indicator will light in red again.
If the audio signal is very weak, the transmitter
does not send RF signals. If the transmitter is
connected to a headphone jack, make sure the
volume of the equipment connected is set to 5 – 6
or higher.
You may not hear the beginning of the sound
from the headphones until the transmitter starts
sending the RF signals after detecting an audio
signal.
Auto power on/off function
When you remove the headphones from your
head, the power turns off automatically. Do not
allow the self adjusting band to be pulled up,
otherwise the headphones will be switched on.
VOL control
Try the above steps 3 and 5 until the
receiving performance becomes better.
GB
8
The power turns on.
Note
If a hissing noise is heard, move closer to the
transmitter.
The effective areas of
Replacing the ear pads
the transmitter
The optimum distance is up to approximately
100 m without the system picking up some
interference. However, the distance may vary
according to the surroundings and environment.
If the system picks up some noise while using it
within the above mentioned distance, reduce the
distance between the transmitter unit and the
headphones, or select the other channel.
Notes
• When you use the headphones inside the effective
areas of the transmitter, the transmitter can be placed
in any direction from the listener.
• Even within the signal reception area, there are some
spots (dead spot) where the RF signal can not be
received. This characteristics is inherent to RF signals,
and does not indicate malfunction. By slightly moving
the transmitter, location of the dead spot can be
changed.
When the ear pads become dirty or damaged,
you can get replacements from your Sony dealer.
Replace them as illustrated below.
1 Remove the old ear pad by pulling it
out of the groove on the housing.
2 Place the new ear pad on the driver
unit and insert the edge of the pad into
the groove as illustrated.
Make sure that the entire edge of the ear pad is
securely inserted into the groove.
GB
9
N Additional information
Precautions
• When the transmitter is not to be used for a
long period of time, disconnect the AC power
adaptor from the AC outlet holding the plug.
Do not pull on the cord.
• Do not leave the wireless stereo headphone
system in a location subject to direct sunlight,
heat or moisture.
Notes 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.
Caring for others
Keep the volume at a moderate level. This will
allow you to hear outside sounds and to be
considerate to the people around you.
If you have any questions or problems
concerning the system that are not covered in this
manual, please consult the nearest Sony dealer.
Be sure to bring the headphones and the
transmitter to the Sony dealer when requiring
repair work.
Disposing of the headphones
Be sure to remove the built-in rechargeable
batteries from the headphones before you
dispose of the headphones.
First remove the left headphone’s ear pad.
You will see six screws. Remove the six
screws and open the housing.
Troubleshooting
Problem
No sound/
Muffled
sound
Solution
Check the connection of the audio/
video equipment or the AC power
adaptor.
Check that the audio/video
equipment is turned on.
Turn up the volume on the connected
audio/video equipment, if the
transmitter is connected to the
headphones jack.
Change the radio frequency with the
CHANNEL selector on the
transmitter, then tune the headphones
with the TUNING control.
The mute function is activated.
Use the headphones near the
transmitter.
The headphones’ POWER indicator
light is weak or turned off.
•Charge the built-in rechargeable
battery or if the POWER indicator is
still off after charging the builtin rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
If you connect the transmitter to the
LINE OUT or REC OUT jack of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.
Make sure that the NOISE FILTER
switch is set to either ON or OFF (If
the switch gets stuck between ON and
OFF, the sound will be cut off).
10
GB
Problem
Distortion
Loud
background
noise
Solution
If the transmitter is connected to the
headphones jack, turn down the
volume of the connected audio/video
equipment.
Change the radio frequency with the
CHANNEL selector on the
transmitter.
The headphones’ POWER indicator
light is weak or turned off.
•Charge the built-in rechargeable
battery or if the POWER indicator is
still off after charging the built-in
rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
If you connect the transmitter to LINE
OUT or REC OUT jack of an audio
reproducer, make sure that the NOISE
FILTER switch is set to OFF.
Move closer to the transmitter. As
you move away from the transmitter,
more noise is likely to be heard.
If the transmitter is connected to the
headphones jack, turn up the volume
of the connected audio/video
equipment.
Change the radio frequency with the
CHANNEL selector on the
transmitter, then tune the headphones
with the TUNING control.
The headphones’ POWER indicator
light is weak or turned off.
•Charge the built-in rechargeable
battery or if the POWER indicator is
still off after charging the built-in
rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
If you connect the transmitter to the
LINE OUT or REC OUT jack of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.
Move the AC power adaptor cord
away from the transmitter.
Audio inputphono jacks/stereo mini jack
DimensionsApprox. 150 mm dia × 108 mm
(6 × 4 1/3 in.) (w/h)
MassApprox. 190 g (6.7 oz.)
Headphones MDR-RF415R
Power source DC 2.4 V: Built-in rechargeable
battery
MassApprox. 240 g (8.5 oz.) incl.
built-in rechargeable battery
Built-in Ni-Cd rechargeable battery
Model nameNC-AA
Voltage1.2 V
Capacity700 mAh
Optional accessory
Plug adaptorPC-236HG (stereo mini jack y
monaural mini plug)
Design and specifications are subject to change without
notice.
11
GB
ADVERTENCIA
¡Bienvenido!
Para evitar incendios o el riesgo de
electrocución, no exponga la unidad a la
lluvia ni a la humedad.
Para evitar descargas eléctricas, no abra
la unidad. En caso de avería, solicite los
servicios de personal cualificado.
Este equipo cumple los requisitos esenciales de la
Directiva 1999/5/CE sobre equipos terminales
de telecomunicaciones y radio.
Este producto está destinado a utilizarse en el
siguiente país:
Italia
Muchas gracias por la adquisición del sistema de
auriculares estéreo inalámbrico
MDR-RF415RK Sony. Antes de utilizar el
sistema, lea detenidamente este manual y
consérvelo para futuras referencias.
Algunas de las características son:
• Sistema inalámbrico que le permitirá escuchar
un programa sin verse restringido por un cable
• Reproducción de sonido de alta fidelidad
• Transmisor compacto con adaptador de
alimentación de CA (suministrado) que
permite la carga fácil de la batería de los
auriculares. Al colocar simplemente los
auriculares sobre el transmisor se iniciará la
carga.
• Auriculares Supra-aurales cómodos con casco
autoajustable
• Función de conexión/desconexión de la
alimentación de los auriculares para conservar
la energía de las baterías o pilas
ES
2
Notas sobre el
Índice
rendimiento de
recepción
El sistema para este equipo utiliza señales de
frecuencia muy alta de la banda de 400 MHz,
motivo por el que el rendimiento de la recepción
puede deteriorarse debido al medio ambiente.
En los ejemplos siguientes se indican las
condiciones que pueden reducir el alcance de la
recepción o causar interferencias en ella.
• Dentro de un edificio con paredes que
contengan vigas de acero.
• Área con muchos armarios archivadores de
acero, etc.
• Área con muchos aparatos eléctricos capaces
de generar ruido electromagnético.
• Transmisor colocado sobre un instrumento
metálico.
• Área encarada hacia carreteras.
• Ruido o señales de interferencia en los
alrededores debido a transceptores de radio de
camiones, etc.
• Ruido o señales de interferencia en los
alrededores debido a sistemas inalámbricos de
comunicaciones instalados a lo largo de
carreteras.