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Wireless Stereo

Headphone System

Operating Instructions

3-095-629-13(2)

WARNING

To reduce the risk of fire or electric shock,

do not expose this apparatus to rain or

moisture.

To reduce the risk of fire or electric shock, do not place

objects filled with liquids, such as vases, on the

apparatus.

To avoid electrical shock, do not open the cabinet.

Refer servicing to qualified personnel only.

Connect AC power adaptor to an easily accessible AC

outlet. Should you notice an abnormality in AC power

adaptor, disconnect it from the AC outlet

immediately.

Do not install the appliance in a confined space, such

as a bookcase or built-in cabinet.

Do not expose the battery to excessive heat such as

direct sunlight, fire or the like.

The nameplate is located on the bottom exterior.

Hereby, Sony Corp., declares that this equipment is in

compliance with the essential requirements and other

relevant provisions of Directive 1999/5/EC.

For details, please access the following URL :

http://www.compliance.sony.de/

Disposal of Old Electrical &

Electronic Equipment

(Applicable in the European

Union and other European

countries with separate

collection systems)

This symbol on the product or on its packaging

indicates that this product shall not be treated as

household waste. Instead it shall be handed over to

the applicable collection point for the recycling of

electrical and electronic equipment. By ensuring this

product is disposed of correctly, you will help prevent

potential negative consequences for the environment

and human health, which could otherwise be caused

by inappropriate waste handling of this product. The

recycling of materials will help to conserve natural

resources. For more detailed information about

recycling of this product, please contact your local

Civic Office, your household waste disposal service or

the shop where you purchased the product.

Disposal of waste batteries

(applicable in the European

Union and other European

countries with separate

collection systems)

This symbol on the battery or on the packaging

indicates that the battery provided with this product

shall not be treated as household waste.

On certain batteries this symbol might be used in

combination with a chemical symbol. The chemical

symbols for mercury (Hg) or lead (Pb) are added if the

battery contains more than 0.0005% mercury or

0.004% lead.

By ensuring these batteries are disposed of correctly,

you will help prevent potentially negative

consequences for the environment and human health

which could otherwise be caused by inappropriate

waste handling of the battery. The recycling of the

materials will help to conserve natural resources.

In case of products that for safety, performance or

data integrity reasons require a permanent connection

with an incorporated battery, this battery should be

replaced by qualified service staff only.

To ensure that the battery will be treated properly,

hand over the product at end-of-life to the applicable

collection point for the recycling of electrical and

electronic equipment.

For all other batteries, please view the section on how

to remove the battery from the product safely. Hand

the battery over to the applicable collection point for

the recycling of waste batteries.

For more detailed information about recycling of this

product or battery, please contact your local Civic

Office, your household waste disposal service or the

shop where you purchased the product.

Do not expose batteries or apparatus with battery

installed to excessive heat such as sunshine fire or the

like.

Notice for customers: the following

information is only applicable to

equipment sold in countries applying EU

directives.

The manufacturer of this product is Sony Corporation,

1-7-1 Konan Minato-ku, Tokyo, 108-0075 Japan. The

Authorized Representative for EMC and product

safety is Sony Deutschland GmbH, Hedelfinger

Strasse 61, 70327 Stuttgart, Germany. For any service

or guarantee matters, please refer to the addresses

given in separate service or guarantee documents.

Welcome!

Thank you for purchasing the Sony MDR-RF840RK/

RF860RK Wireless Stereo Headphone System. Before

operating the unit, please read this manual

thoroughly and retain it for future reference.

Some features are:

•A compact transmitter enables simple charging by a

contactless charge method that requires no terminals

by the electromagnetic induction.

Just by placing the headphones on the transmitter,

the headphone battery can be charged.

•Automatic ON/OFF function on headphones to

preserve battery power.

•Noise reduction system to reproduce a clear sound

with minimum transmission noise (MDR-RF860RK

only).

•Wireless system that allows you to listen to a

program free from the restriction of a cord.

•High fidelity sound reproduction.

•Easy connection with TV and HiFi Audio system

equipment.

•Up to 100 meters reception range.

•Volume control function on the headphones.

•Comfortable Circum-aural headphone with self

adjusting head band.

Notes on receiving

performance

This system utilizes very high frequency signals in the

800 MHz band so the receiving performance may

deteriorate due to the surroundings. The following

examples illustrate conditions that may reduce the

reception range or cause interference.

•Inside a building with walls containing steel beams.

• An area with many steel file cabinets, etc.

•An area with many electrical appliances capable of

generating electromagnetic fields.

• The transmitter is placed on a metal instrument.

•An 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.

N Getting started

Unpacking

Check that you have the following items:

•The headphones (1)

•The transmitter (1)

•AC power adaptor (1)

•Connecting cord (1) (phono plugs y stereo

miniplug), 1 m

• Unimatch plug adaptor (1) (stereo mini jack y

stereo phone plug)

• Rechargeable nickel-metal hydride battery

BP-HP550-11 (1)

Charging the supplied

rechargeable battery

The supplied rechargeable nickel-metal hydride

battery is not charged from the first time you use it. Be

sure to charge it before use.

To charge the headphones, place them on the transmitter.

1Press the PUSH button of the left housing to

open the battery compartment lid.

The battery compartment lid comes off.

2Insert the supplied rechargeable nickel-

metal hydride battery into the battery

compartment matching the 3 terminal on

the battery to the 3 mark in the

compartment.

Do not use rechargeable battery other than the

supplied one.

3Close the battery compartment lid.

1Insert the tab into the hole at the upper left.

2Close the lid until it clicks.

4Connect the supplied AC power adaptor to

the transmitter.

5Rest the headphones on the transmitter so

that the transmitter’s POWER/CHG indicator

lights in red.

Please place the headphones on the transmitter so

that the triangle arrow would be matched. If the

headphones are not properly placed, it will not be

charged.

Charging will take about 16 hours, after which the

POWER/CHG indicator will go off.

About the charging method of the system

This system employs a contactless charge method that

requires no terminals by the electromagnetic induction.

Notes

•Do not leave any metallic objects (coin, clip, etc.)

near the transmitter’s charging point. The

transmitter and the metal might become hot and it is

dangerous.

• Do not leave any objects susceptible to magnetism

(cash cards, floppy disks with magnetic coding, etc.)

near the system. Exposure to the transmitter’s

electromagnetic field may render them unusable.

•Do not place a radio near the system. A noise may be

heard from the radio. In such a case, change the

angle of the radio or move away from the system so

that a noise is not heard.

When the transmitter’s POWER/CHG

indicator does not light up red

Check if the right and left headphones are rested on

the transmitter correctly. Remove the headphones and

replace them on the transmitter again so that the

POWER/CHG indicator lights in red.

To recharge the headphone battery after use

Place the headphones on the transmitter after use.

Since the built-in timer recognizes when charging is

complete, there is no need to remove the headphones

from the transmitter after charging.

Notes

•The transmitter automatically stops sending RF

signals while charging the battery.

• This system is designed to charge only the supplied

rechargeable battery type BP-HP550-11 for safety.

Note that other types of rechargeable batteries

cannot be charged with this system.

•If dry batteries are installed, they cannot be charged.

•Do not attempt to use the supplied BP-HP550-11

rechargeable battery for other components. They are

for use with this system only.

•Charge in an environmental temperature of

between 0 °C and 40 °C (between 32 °F and 104 °F).

Charging and usage hours

Approx. charging Approx. usage time*1

hours*1

1 hour 60 minutes*340 minutes*3

16 hours*218 hours*314 hours*3

*1at 1 kHz, 1 mW+1 mW output

*2hours required to fully charge an empty battery

*3Time stated above may vary, depending on the

temperature or conditions of use.

Using the headphones with dry batteries

(sold separately)

Commercially available (size AAA) dry batteries can also

be used to power the headphones. Install the batteries in

the same manner as described in steps 1 through 3 of

“Charging the supplied rechargeable battery.”

When dry batteries are installed, the battery charge

function will not be activated.

Battery life

(Using Sony alkaline batteries LR03/AM-4 (N))

Model Approx. hours*1

MDR-RF840RK 28 hours*2

MDR-RF860RK 22 hours*2

*1 at 1 kHz, 1 mW+1 mW output

*2 Time stated above may vary, depending on the

temperature or conditions of use.

Notes on Batteries

•Do not charge a dry battery.

•Do not carry a dry battery together with coins or

other metallic objects. It can generate heat if the

positive and negative terminals of the battery

accidentally come into contact with metallic objects.

• If you are not going to use the unit for a long time,

remove the batteries to avoid damage from battery

leakage or corrosion.

Checking the remaining battery power

Pull up the self-adjusting band and check the POWER

indicator located on the right housing. The battery is

still serviceable when the indicator lights in red.

Charge the rechargeable battery or install new dry

batteries if the POWER indicator light dims, flashes, or

the sound becomes distorted or noisy.

Note

The rechargeable nickel-metal hydride battery should

be replaced with new one when they last only half the

expected time after a proper recharging. The

rechargeable battery type BP-HP550-11 is not

commercially available. You can order the battery

from the store where you purchased this system, or at

your nearest Sony dealer.

Setting up the transmitter

1Connect the transmitter to audio/video

equipment.

Select one of the hookups below depending on the

jack type:

A To connect to a headphones jack

B To connect to LINE OUT or REC OUT

*“WALKMAN” and “WALKMAN” logo are

registered trademarks of Sony Corporation.

2Connect the supplied AC power adaptor to

the transmitter.

Notes

•Use only the supplied AC power adaptor. Do not

use any other AC power adaptor.

•When the transmitter is placed on or near a TV, it

may pick up a noise. In such a case, place the

transmitter away from the TV.

•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.

N Operating the system

Listening to a programme

Before listening

To reduce the risk of hearing damage, first lower the

volume.

1Turn on the audio/video equipment

connected to the transmitter.

If the transmitter is connected to the headphone

jack, set the volume control of the audio source

equipment as high as possible but not so high that

the audio signal becomes distorted.

2Remove the headphones from the

transmitter.

The transmitter’s POWER/CHG indicator lights

up green.

3Select the radio frequency with the

CHANNEL selector switch.

CHANNEL

4Put on the headphones.

When you put on the headphones, the

headphone’s power turns on automatically.

The POWER indicator on the right housing glows

red.

Be sure to put the right housing R on your right

ear and the left housing L on your left ear.

Wear the headphones vertically on your head so

that auto power on function is properly activated.

5Set the channel to that of the transmitter

with the selector (or button) on the right

housing of the headphones.

A MDR-RF840RK

Select the channel to that of the transmitter with

the TUNING selector on the right housing of the

headphones.

When tuning has completed, turn up the volume

to a moderate level with the VOLUME control on

the right housing.

231

VOLUME

B MDR-RF860RK

Press the TUNING button briefly for automatic

tuning of the headphones. If you do not receive a

clear audio signal, press it again.

When tuning has completed, turn up the volume

to a moderate level with the VOLUME control on

the right housing.

TUNING

VOLUME

Sending RF signals from the transmitter

The transmitter starts sending RF signals

automatically when it detects an audio signal from the

connected equipment.

If it does not detect an audio signal for more than

about 4 minutes, the transmitter will stop sending RF

signals, and the POWER/CHG indicator will turn off.

When the transmitter receives an audio signal again, it

starts sending the RF signals, and the POWER/CHG

indicator will light up green 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.

MDR-RF840RK

MDR-RF860RK

PUSH

button

The headphones automatically turn off

when they are taken off

– Auto power on/off function

Do not pull up the self-adjusting band when not in

use, as this will consume the battery power.

Notes

•If hiss is heard, move closer to the transmitter.

•You may hear some noise when you disconnect the

AC power adaptor from the transmitter before turn

off the headphones.

Noise Reduction process (MDR-RF860RK

only)

The transmitter unit compresses the audio signal and

converts it to RF signal. The headphones unit converts

the received RF signal to an audio signal and

decompresses it.

This process reduces noise picked up during

transmission.

input signal output signal

decompression

compression

dynamic range

Transmitter unit Headphones unit

RF transmission

noise level (low)

2 34

1The transmitter unit compresses the audio signals

dynamic range, then converts it to RF signal.

2Noise may occur due to long distance

transmission, etc.

3The headphones unit converts the RF signal to an

audio signal.

4Noise may occur during conversion.

5Decompression of the audio signals dynamic range

reduces the noise level and improves the

S/N (signal-to-noise) ratio.

The effective areas of

the transmitter

The optimum distance is up to approximately 100 m

without the system picking up some interference.

However, the distance may vary depending on the

surroundings and environment. If the system picks up

some noise within the above mentioned distance,

reduce the distance between the transmitter unit and

the headphones, or select another 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 spots) where the RF signal cannot 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.

Replacing the ear pads

The ear pads are replaceable. If the ear pads become

dirty or worn out, replace them as illustrated below.

The ear pad is not commercially available. You can

order replacements from the store where you

purchased this system, or at your nearest Sony dealer.

1Remove the old ear pad by pulling it out of

the groove on the housing.

2Place the new ear pad on the driver unit.

Hang the edge of the ear pad on one side of the

driver unit’s groove edge, then turn the edge of

ear pad around the driver unit as illustrated

below.

When the ear pad is securely inserted into the

groove, adjust the ear pad to the vertical position.

Charging point

MDR-RF840RK MDR-RF860RK

Self-

adjusting

band

Rechargeable

battery

Transmitter

Lines of magnetic

force

Headphones

CHANNEL DC IN 12V

INPUT

BRAL

Transmitter

To INPUT B

jack

Connecting cord

(supplied)

To LINE OUT or

REC OUT jacks

Right

channel (red)

Left channel

(white)

Stereo system,

VCR, etc.

N Additional information

Precautions

•

If the transmitter is not to be used for a long period of

time, disconnect the AC power adaptor from the AC

outlet by 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

To reduce the risk of 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.

•Excessive sound pressure from headphones can

cause hearing loss.

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 your nearest Sony dealer.

Be sure to bring the headphones and the transmitter to

the Sony dealer when requiring repair work.

Troubleshooting

No sound/Muffled sound

,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 switch on the transmitter,

then set to the same radio frequency with the

TUNING selector (or TUNING button) on the

right housing of the headphones.

,The mute function is activated.

•Use the headphones near the transmitter.

,The headphones’ POWER indicator light turns

off, dims, flashes, or sound becomes distorted

or noisy.

•Charge the rechargeable battery if it is weak,

or replace alkaline batteries with new ones. If

the POWER indicator is still off after charging

the battery, take the headphones to a Sony

dealer.

Distortion

,If the transmitter is connected to the

headphones jack, turn down the volume on the

connected audio/video equipment.

,Change the radio frequency with the

CHANNEL selector switch on the transmitter,

then set to the same radio frequency with the

TUNING selector (or TUNING button) on the

right housing of the headphones.

,The headphones’ POWER indicator light turns

off, dims, flashes, or sound becomes distorted

or noisy.

•Charge the rechargeable battery if it is weak,

or replace alkaline batteries with new ones. If

the POWER indicator is still off after charging

the battery, take the headphones to a Sony

dealer.

Loud background noise

,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 switch on the transmitter,

then set to the same radio frequency with the

TUNING selector (or TUNING button) on the

right housing of the headphones.

,The headphones’ POWER indicator light turns

off, dims, flashes, or sound becomes distorted

or noisy.

•Charge the rechargeable battery if it is weak,

or replace alkaline batteries with new ones. If

the POWER indicator is still off after charging

the battery, take the headphones to a Sony

dealer.

Transmitter

Headphones

POWER/CHG

indicator

CHANNEL DC IN 12V

RALINPUT

Transmitter

AC power adaptor

(supplied)

To an AC

outlet

To DC IN

12V jack

Polarity of the plug

Transmitter

Headphones

VOLUME control TUNING

button

VOLUME control TUNING

selector

CHANNEL DC IN 12V

RALINPUT

Transmitter

AC power adaptor

(supplied)

To an AC

outlet

To DC IN

12V jack

CHANNEL DC IN 12V

INPUT

BRAL

Transmitter

To INPUT A

jacks

Connecting cord

(supplied)

Unimatch plug

adaptor

(supplied)

Right

channel (red)

Left channel

(white)

WALKMAN*,

TV, etc.

To headphones

jack (Stereo

mini jack)

To headphones

jack (Stereo

phone jack)

Specifications

General

Carrier frequency

863.52 MHz, 864.02 MHz, 864.52 MHz

Channel Ch1, Ch2, Ch3

Modulation FM stereo

Frequency response

MDR-RF840R: 20 – 20,000 Hz

MDR-RF860R: 10 – 22,000 Hz

Transmitter TMR-RF840R, RF860R

Power source DC 12 V: supplied AC power adaptor

Audio input Phono jacks, stereo mini jack

Dimensions Approx. 216 × 105 × 96 mm

(8 5/8 × 4 1/4 × 3 7/8 in) (w/h/d)

Mass Approx. 220 g (7.77 oz)

Rated power consumption

3 W

Headphones MDR-RF840R, RF860R

Power source Supplied rechargeable nickel-metal

hydride battery BP-HP550-11 or

commercially available (size AAA) dry

batteries

Mass Approx. 300 g (10.59 oz) incl. Battery

Design and specifications are subject to change

without notice.

Sony mdr-rf840rk Handleiding

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