Handleiding Sony MDR-RF950RK Koptelefoon

Handleiding

Operating Instructions

Mode d’emploi

Wireless Stereo

Headphone System

Sony Corporation © 1998 Printed in Japan

MDR-RF950RK

To recharge the headphones’ batteries

after use

To charge the batteries, follow steps above.

Since little electric current is used for charging,

there is no need to worry about overcharging.

Charging and using hours

* at 1 kHz, 1 mW + 1 mW output

** The hours required to fully charge empty batteries

Setting up the

headphones

1 Open the battery compartment lid on the

left outer side of the head band.

2 Insert two charged NC-AA-HJ batteries

by matching the ] and } on the

batteries to the ] and } in the battery

compartment.

3 Close the battery compartment lid.

Using the headphones with a commercially

available size AA (R6) dry batteries

Install the batteries in the manner as described in

“Setting up the headphones.”

Battery life

* at 1 kHz, 1 mW + 1 mW output

Notes on batteries

To avoid damage to the system caused by battery

leakage and corrosion;

– Install the batteries with the correct polarity.

– Do not try to recharge dry batteries.

– Remove the batteries if the system is not to be

used for a long period of time.

In case of battery leakage, wipe off any deposit in

the battery compartments before installing new

batteries.

Check the remaining power of the

headphones’ battery

Pull up the self adjusting band, and check that the

headphones’ power indicator lights in red. You

can now use the headphones.

Charge the battery or install a new dry battery, if

the power indicator light is weak or turned off and

the sound become distorted or has a lot of noise.

Notes

• During recharging, the transmitter is turned off.

• When the life of the rechargeable batteries are shortened

by half even after a proper recharging, replace them

with new NC-AA-HJ batteries.

( Operating the system

Listening to a program

1 First turn on the audio/video

equipment, then the transmitter.

2 Select the radio frequency with the

CHANNEL selector switch.

3 Put on the headphones and the power

turns on automatically.

4 Turn up the volume to a moderate level

with the VOL control, then tune the

headphones to the transmitte frequency

with the TUNING control until you can

hear the audio signal loud and clear.

1

2

Try the above steps 2 and 4 until the

receiving performance becomes better.

Sending RF signals from the Transmitter

The transmitter starts sending the RF signals

automatically, when the transmitter power is

turned on, and audio signals from the connected

equipment is detected.

If it does not detect an audio signal for more than

approximately five minutes, the transmitter will

stop sending RF signals.

But the Power indicator remains lighting. When

the transmitter receives an audio signal again, it

starts sending the RF signals.

If the audio signal is very weak, the transmitter

does not send RF signals automatically. In this

case, make sure the volume of the equipment

connected is set to 5 – 6.

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.

Note

If the transmitter is connected to the headphones jack of

the source equipment, set the volume of that equipment as

high as possible without distorting the audio signal.

Auto power on/off function

When you remove the headphones, the power

turns off automatically. Do not allow the self

adjusting band to be pulled up, otherwise the

headphones will be switched on.

The power turns on. The power turns off.

Mute function

If a hissing noise is heard when the headphones

are used outside of the effective range (see the next

section), the mute function will be activated and

the sound will not be heard from the headphones.

To restore the sound, move near toward the

transmitter.

After listening to a program

Take the headphones off and rest them away on

the holder of the transmitter as shown below.

Note

Do not hang the headphones by the self adjusting band,

otherwise, the self adjusting band will be pulled up and

the headphones will be switched on.

The effective areas of

the transmitter

The optimum distance is up to approximately 150

feet (46 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.

Replacing the ear pads

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.

( Additional information

Precautions

• When the headphones are not to be used for a

long period of time, remove the batteries to

avoid damage caused by battery leakage and

subsequent corrosion.

• 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.

Also remove the batteries to avoid damage

caused by battery leakage and subsequent

corrosion.

• 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.

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

• When you connect the connecting cord directly to an

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.

• Do not place the transmitter near a fluorescent lamp, etc.

when using the system.

* WALKMAN is a registered trademark of Sony

Corporation.

Charging the

headphones’ batteries

Using the headphones for the first time

The headphones are powered by either supplied

rechargeable batteries or commercially available

size AA (R6) batteries.

When you use the headphones with the supplied

rechargeable batteries NC-AA-HJ for the first time,

charge the batteries in the following manner.

NC-AA-HJ is applicable only for Sony cordless/

wireless headphone systems. Never use for any

other purpose.

1 Press the OPEN button to open the

battery compartment lid of the

transmitter.

2 Insert two NC-AA-HJ batteries supplied

by matching the ] and } on the

batteries to the ] and } in the battery

compartment.

3 Close the battery compartment.

4 Connect the transmitter to a power

source.

5 Press the OFF/CHG•POWER ON

switch so that the OFF/CHG indicator

lights up green.

Charging starts.

Notes

• Charge only the supplied rechargeable batteries

NC-AA-HJ.

• You cannot recharge other size AA (R6) rechargeable

batteries (NC-AA etc.) with this unit.

• Be sure to charge both the rechargeable batteries at a

time. The charger cannot charge the batteries one by

one.

• Use only the supplied AC power adaptor. Do not use

any other AC power adaptor.

Polarity of the plug

If the indicator is not lit

Check that the supplied rechargeable batteries are

correctly inserted in the battery compartment of

the transmitter.

Setting up the

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

b To connect to LINE OUT or REC OUT

jacks

c To connect to TV, etc.

If noise occurs when the transmitter is

connected to the headphone jack of your

TV or VCR, set the NOISE FILTER switch

to ON.

Notes

• If you connect the transmitter to LINE OUT or REC

OUT jack, do not set the NOISE FILTER switch to

ON. Otherwise, the volume will be limited.

• The NOISE FILTER switch effects the sound only in

cases such as connection diagram c. In diagrams

a and 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.

Notes on receiving

performance

The system for this equipment utilizes very high

frequency signals in the 900 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 roadways.

• Noise or interfering signals exist in the

surroundings due to radio transceivers in trucks,

etc.

• Noise or interfering signals exist in the

surroundings due to wireless communication

systems installed along roadways.

( Getting started

Unpacking

Check that you have the following items:

• The transmitter

• Ni-Cd rechargeable batteries NC-AA-HJ

• AC power adaptor

• The headphones

• Unimatch plug adaptor (stereo mini jack n

stereo phone plug)

• Connecting cord (phono plugs ˜ stereo mini

plug), 1 m

English

Note

This device complies with RSS-210 of Industry

Canada. Operation is subject to the following two

conditions: (1) this device may not cause

interference, and (2) this device must accept any

interference, including interference that may cause

undesired operation of the device.

For the customers in the Canada

RECYCLING NICKEL-CADMIUM BATTERIES

Nickel-Cadmium batteries

are recyclable. You can help

preserve our environment by

returning your unwanted

batteries to your nearest

point for collection, recycling

or proper disposal.

Note: In some areas the disposal of nickel-

cadmium batteries in household or

business trash may be prohibited.

RBRC (Rechargeable Battery Recycling

Corporation) advises you about spent battery

collection by the following phone number.

Call toll free number: 1-800-822-8837 (United

States and Canada only)

Caution: Do not handle damaged or leaking

nickel-cadmium batteries.

Transmitter

Left channel

(white)

Right channel

(red)

Unimatch plug

adaptor

(supplied)

Discman, MD,

WALKMAN*, VCR,

etc.

to headphones

jack (stereo

mini jack)

Connecting cord

(supplied)

to AUDIO IN

A jacks

to headphones

jack (stereo

phone jack)

TV, etc.

to stereo mini jack

Transmitter

to AUDIO IN

A jack

Left channel

(white)

Right channel

(red)

Connecting cord

(supplied)

Transmitter

to AUDIO IN

B jack

Connecting cord

(supplied)

Right channel

(red)

Left channel

(white)

to LINE OUT or REC

OUT jacks

Stereo system, VCR, etc.

Transmitter

to an AC outlet

To DC IN

9 V jack

AC power adaptor (supplied)

Approx. charging

hours

1

24**

Approx. using time*

50 minutes

20 hours

Self adjusting band

Holder

No sound/Muffled sound

/ Turn on the transmitter first, then put on the

headphones.

/ 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.

/ Select the radio frequency with the CHANNEL

selector, then tune in the frequency of the

transmitter 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 rechargeable batteries or if the

POWER indicator is still off after charging the

batteries, replace them with new

NC-AA-HJ batteries.

•If you are using the conventional dry batteries,

replace it with new ones.

/ 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.

Distortion

/ If the transmitter is connected to the headphones

jack, turn down the volume of the connected

audio/video equipment.

/ Select the radio frequency with the CHANNEL

selector.

/ The headphones’ POWER indicator light is weak

or turned off.

•Charge the rechargeable batteries or if the

POWER indicator is still off after charging the

batteries, replace them with new

NC-AA-HJ batteries.

•If you are using the conventional dry batteries,

replace it with new ones.

/ 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.

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.

/ Select the radio frequency with the CHANNEL

selector, then tune in the frequency of the

transmitter with the TUNING control.

/ The headphones’ POWER indicator light is weak

or turned off.

•Charge the rechargeable batteries or if the

POWER indicator is still off after charging the

batteries, replace them with new

NC-AA-HJ batteries.

•If you are using the conventional dry batteries,

replace it with new ones.

/ 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.

The batteries cannot be charged.

/ The dry batteries are installed.

•Install the supplied rechargeable batteries.

/ The rechargeable batteries other than NC-AA-HJ

are installed.

•Install NC-AA-HJ rechargeable batteries.

Incapable of the tuning

/ Turn up the volume moderately, then tune in the

frequency.

Specifications

General

Carrier frequency

913.0 – 915.0 MHz

Channel Ch1, Ch2, Ch3

Modulation FM stereo

Frequency response

18 – 22,000 Hz

Transmitter

RF power Less than 94 dBµV/m at 3 m

Power source DC 9 V: supplied AC power adaptor

Audio input phono jacks/stereo mini jack

Dimensions Approx. 120 mm dia × 290 mm

(4

3

/

4

× 11

1

/

2

in.) (w/h)

Mass Approx. 155 g (5.5 oz.)

Headphones

Power source DC 3 V: 2 × R6 (size AA) battery or

2 × supplied

NC-AA-HJ Ni-Cd

rechargeable battery

Mass Approx. 265 g (9.4 oz.) incl.

Ni-cd batteries

Supplied Ni-Cd rechargeable batteries

Model name NC-AA-HJ

Voltage 1.2 V

Capacity 600 mAh

Optional accessories

Ni-Cd rechargeable battery

NC-AA-HJ

Plug adaptor PC-236HG (stereo mini jack ˜

monaural mini plug)

Design and specifications are subject to change without

notice.

Troubleshooting

Battery

Sony alkaline battery SG (LR6)

Sony battery SR (R6P)

Approx. hours*

60

30

Welcome!

Thank you for purchasing the Sony

MDR-RF950RK 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

within 150 feet (46 m) from the transmitter.

• High fidelity sound reproduction

• Compact transmitter which operates on AC

power using the supplied AC power adaptor

and which also functions as battery charger.

• Comfortable Supra-aural headphones with self

adjusting head band

• Automatic ON/OFF function on headphones to

preserve battery power

• Mute function to avoid noise when no audio

signal is available.

• Either supplied rechargeable batteries or

commercially available size AA (R6) dry

batteries are used for the power source of the

headphones.

3-864-034-22(1)

TUNING

Control

VOL

Control

Beoordeling

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