Sony MDR-IF420RK, MDR-IF520RK User Manual

Sony Corporation Printed in Korea

3-858-448-15(1)

Cordless Stereo Headphone System

Operating Instructions page 2 Mode d’emploi page 16 Bedienungsanleitung seite 30 Manual de instrucciones página 44

MDR-IF420RK MDR-IF520RK

WARNING

Welcome!

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.

WARNING

You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment.

Owner’s Record

The model number is located at the bottom of the transmitter and the right inner side of the headband. The serial number is located at the bottom of the transmitter and in the battery compartment of the headphones. Record these numbers in the spaces provided below. Refer to them whenever you call upon your Sony dealer regarding this product.

Model No. Transmitter Headphones Serial No. Transmitter Headphones

Thank you for purchasing the Sony MDR-IF420RK/MDR-IF520RK Cordless Stereo Headphone System. Before operating the unit, please read this manual thoroughly and retain it for future reference. Some features are:

• Cordless system that allows you to listen to a program free from the restriction of a cord.

• The infrared rays from the transmitter cover a broad horizontal listening area with a maximum distance of 10 m.

• Self-adjusting headband for fitting your head perfectly.

• The power of the headphones turns on and off automatically every time you put the headphones on and off (Auto power on/off function).

• Surround effect that enables you to enjoy the sound which simulates the sound field such as concert hall or theater. (MDR-IF-520RK only)

• The VOL control adjusts the volume level of both channels. Furthermore, you can adjust the balance between the left and right channels with the BALANCE control. (MDR-IF520RK only)

• The power source of the headphones can be selected from either a supplied rechargeable battery or a commercially available R6 (size AA) dry battery.

About the infrared

Table of contents rays communication

The illustration below shows the approximate area covered by the infrared rays emitted from the transmitter.

Transmitter Approx. 4 m

/2 in.)

(157

Approx. 4 m

/2 in.)

(157

Notes

•This system utilizes infrared rays for

communication so noise (hissing) can be heard from the headphones as you move farther away from the transmitter. The sound will also be cutoff and noise will be heard if the infrared rays are blocked. These are characteristics of infrared ray communication and do not indicate malfunction.

•The infrared rays will not penetrate walls or

opaque glass, therefore, be sure to stay within sight of the transmitter.

•When you use the headphones inside the area

illustrated in the diagram, the transmitter can be placed in the front, behind or by the side of the listener.

•The sound you hear varies according to your

position and the transmitter position. Try finding a position which yields the best sound.

•Do not cover the infrared sensors with your

hands or hair.

Infrared ray

Approx. 10 m (32.8 ft.)

Getting started

Unpacking .......................................... 4

Charging the

headphones’ battery ...................... 4

Setting up the transmitter ................ 6

Operating the system

Listening to a program ...................... 8

Replacing the ear pads .................... 12

Additional information

Precautions ........................................12

Troubleshooting ............................... 13

Specifications ....................................15

( Getting started

Unpacking

Check that you have the following items:

• The transmitter

• AC power adaptor

• Connecting cord (phono plugs ˜

stereo mini plug)

• Unimatch plug adaptor (stereo mini

jack n stereo phone plug)

Charging the

headphones’

battery

Using the headphones for the first

time

The headphones are powered by either

a supplied rechargeable battery

NC-AA (HJ) or a commercially

available R6 (size AA) battery.

When you use the headphones with the

supplied rechargeable battery

NC-AA (HJ) for the first time, charge

the battery in the following manner.

NC-AA (HJ) is applicable only for Sony

cordless/wireless headphone systems.

Never use for any other purpose.

1 Open the battery compartment lid

on the left inner side of the hanger.

• The headphones

• Ni-Cd rechargeable battery

NC-AA (HJ)

2 Install the supplied rechargeable

battery with its + and – matched to those of the battery compartment. Do not use a rechargeable battery other than the supplied one.

3 Close the battery compartment lid.

4 Connect the supplied AC power

adaptor to the transmitter.

Transmitter

AC power adaptor (supplied)

to DC IN 9V jack

to an AC outlet

5 Rest the headphones on the

transmitter so that the contact pins fit into the contact holes on the headphones. The charging indicator lights.

To recharge the headphones’

battery after use

To charge the battery, follow steps 4

and 5.

Since little electric current is used for

charging, there is no need to worry

about overcharging.

Charging and using hours

Approx.

charging

hours

24**

* at 1 kHz, 1 mW+1 mW output

** the hours required to fully charge an empty

battery

Using the headphones with a

commercially available R6 (size AA)

dry battery

Approx. using hours*

MDR-IF420RK MDR-IF520RK 1 1 hour. 15 min. 24 30

Install the battery in the manner as

described in steps 1 through 3 of

“Charging the headphones’ battery.”

When a R6 (size AA) dry battery is

installed, the battery charge function is

not activated.

Notes

•Use only the supplied rechargeable battery NC-

AA (HJ).

•You cannot recharge other R6 (size AA)

rechargeable battery (NC-AA etc.) with this unit.

When the indicator is not lit

Check the connection to make sure that the contact pins are properly fitted into the contact holes on the headphones, or if the headphones are rested on the transmitter correctly.

Battery life*

Battery

Sony alkaline

battery LR 6 (SG)

Sony battery R6P

(SR)

* at 1 kHz, 1 mW+1 mW output

Approx. hours

MDR-IF420RK MDR-IF520RK 70 80

35 40

Check the remaining power of the headphones’ battery

Pull up the suspender, 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

automatically.

•When the life of the rechargeable battery is

shortened by half even after a proper recharging, take the headphone set to a Sony dealer and have the old rechargeable battery replaced by a new one.

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

Set the INPUT SOURCE selector to PHONES.

LINE

Transmitter

LINE

PHONES

Connecting cord (supplied)

PHONES

to AUDIO IN A jacks

Left channel (white)

Right channel (red)

Unimatch plug adaptor (supplied)

to headphones jack (stereo phone jack)

Discman, MD, WALKMAN*, TV, VCR, etc.

to headphones jack (stereo mini jack)

b To connect to LINE OUT or REC

OUT jacks Set the INPUT SOURCE selector to

LINE.

Transmitter

LINE

PHONES

LINE

PHONES

to AUDIO IN B jack

2 If your AC power adaptor is

equipped with a voltage selector, before connecting the AC power adaptor to an AC outlet, set it to the operating voltage in your area with a screw driver.

AC power adaptor (supplied)

Connecting cord (supplied)

Left channel (white)

to LINE OUT or REC OUT jacks

Stereo system, TV, VCR, etc.

Transmitter

LINE

PHONES

LINE

PHONES

to AUDIO IN A jack

Left channel (white)

Right channel (red)

Connecting cord (supplied)

to LINE OUT or REC OUT jacks

Right channel (red)

3 Connect the transmitter to a power

source.

Notes

•Do not connect to the AUDIO IN A jack and B jacks at the same time. If you do so, the audio signals may be mixed.

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

Polarity of the plug

•If the plug of the AC power adaptor does not fit in the AC outlet, use the supplied AC plug adaptor.

•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.

* WALKMAN is a registered trademark of Sony

Corporation.

Discman, MD

( Operating the system

Listening to a program

Adjust the balance between the left and right channels. (MDR-IF520RK only)

POWER

1 Turn on the audio/video

equipment connected to the transmitter.

When the audio signal is input, the transmitter turns on automatically and the infrared emitters glow. 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 gets distorted.

2 Put on the headphones and the

power turns on automatically. The power indicator glows red when the power turns on.

3 Adjust the volume.

High

Low

POWER

BALANCEVOL

Right channel’s volume is higher

Left channel’s volume is higher

Auto power on/off function

When you remove the headphones, the power turns off automatically. Do not allow the suspender to be pulled up, otherwise the headphones will be switched on.

Mute function

If a hissing noise is heard when the infrared rays are obstructed, or the headphones are used outside of the effective range (see page 3), the mute function will be activated and the sound will not be heard from the headphones. To restore the sound, move nearer toward the transmitter or remove the obstruction.

BALANCEVOL

When no audio signal is received for more than approximately five minutes

The transmitter will be turned off automatically.

After listening to a program

Take the headphones off and rest them away onto the transmitter. The transmitter power will automatically be turned off. If the supplied rechargeable battery is used for the headphones, the charging indicator on the transmitter lights up. The rechargeable headphone battery is continuously charged when the headphones are placed on the transmitter.

Since little electric current is used for charging, there is no need to worry about overcharging.

As MDR-IF420RK/MDR-IF520RK Cordless Stereo Headphone System is not affected by the memory effect of the Ni-Cd battery, it is advisable that the headphones are rested on the transmitter whenever not in use so that the headphones’ battery is always charged.

Enjoying the TV or VCR with the simulated surround effect (MDR-IF520RK only)

When using an audio equipment with a stereo speakers

With this headphone system, you can enjoy surround sound by listening to the sound from the speakers of a connected stereo TV or audio equipment and to the rear sound from the headphones created by the built-in surround circuit. To listen to the sound with this effect, set up the equipment as follows.

1 Connect the transmitter to audio/

video epuipment. Select one of the hookups below.

Set the INPUT SOURCE selector to LINE.

When a R6 (size AA) dry battery is used for the headphones, the battery charge function is not activated.

Note

The infrared emitters light up when the transmitter is turned on. The brightness of the emitters may not be uniform, however, this is not a malfunction.

1 Connecting to a stereo TV with an

audio output jack

Transmitter

LINE

PHONES

LINE

PHONES

to AUDIO IN B jack

Connecting cord (supplied)

When all the audio output jacks of the epuipment that you are connecting to are used, set up as follows.

Transmitter

LINE

PHONES

LINE

PHONES

to AUDIO IN A jack

Left channel (white)

Right channel (red)

Left channel (white)

Right channel (red)

to LINE OUT jacks

Stereo TV

2 Connecting to a stereo video

epuipment or laser disc player, etc.

Transmitter

LINE

PHONES

Left channel (white)

LINE

PHONES

to AUDIO IN B jack

Right channel (red)

Connecting cord (supplied)

to LINE OUT or REC OUT jacks

Left channel (white)

Stereo video Laser disc player, etc.

Left channel (white)

Right channel (red)

to an audio input jack

Stereo TV

to LINE OUT or REC OUT jacks

Stereo video, Laser disc player, etc.

3 Connecting to an audio equipment

Transmitter

LINE

PHONES

LINE

PHONES

to AUDIO IN B jack

3 Press the SURROUND button to

activate the surround effect and then play the connected equipment.

To cancel the surround effect, press that button again.

Connecting cord (supplied)

Left channel (white)

Stereo audio system

Note

Do not connect to the headphones jack of a TV or an audio equipment. If you do so, front speaker sound will be lost, and the surround effect can not be obtained.

Right

channel

(red)

to LINE OUT or REC OUT jacks

2 Open the housing cap as described

below. In doing so, you can listen to the sound from the speakers on TV or audio system as well as from the headphones in order to obtain the full surround effect.

SURROUND

ON/OFF

Notes

The surround effect does not work in the following cases:

—The source sound is monaural. —The source sound is bilingual.

•When you use the surround effect, do not connect the transmitter to the surround terminals of the audio/video equipment. If you do so, the surround effect may not be obtained or sound may not be output.

( Additional information

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

housing and insert the edge of the pad onto the groove as illustrated.

Precautions

• The CE mark on the unit is valid only

for products marketed in the European Union.

• 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 cordless stereo

headphones 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.

Make sure that the entire edge of the ear pad is securely inserted into the groove.

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.

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.

The mute function is activated.

• Check if there is any object between the transmitter and the headphones.

• Use the headphones near the transmitter.

• Change the position and angle of the transmitter.

The headphones’ power indicator light is weak or turned off.

• Charge the rechargeable battery because the headphones’ battery is weak, or if the power indicator is still off after charging the battery, take the headphones to a Sony dealer for a replacement of the rechargeable battery.

• If you are using the conventional dry battery, replace it with a new one.

Check if the INPUT SOURCE selector is set to the right position.

Problem

No sound/ Muffled sound

Distortion

Solution

Check the position of the BALANCE control (MDR-IF 520RK only).

Check the position of the SURROUND button (MDRIF520RK only).

If the transmitter is connected to the headphones jack, turn down the volume of the connected audio/ video equipment.

The headphones’ power indicator light is weak or turned off.

• If you are using the conventional dry battery, replace it with a new one.

Check if the INPUT SOURCE selector is set to the right position.

Problem

Loud background noise

Solution

Move closer to the transmitter. As you move away from the transmitter, more noise is likely to be heard. This is inherent to infrared ray communication and does not mean that there is a problem with the unit itself.

Check that there is no object between the transmitter and the headphones.

Check that the infrared sensors are not covered with your hands or hair.

Change the position or angle of the transmitter.

• The headphones are used by a window where the sunlight is too strong. n Draw the curtains/

blind to shut out the direct sunlight, or use the headphones away from the sunlight.

If the transmitter is connected to the headphones jack, turn up the volume of the connected audio/video equipment.

The headphones’ power indicator light is weak or turned off.

• If you are using the conventional dry battery, replace it with a new one.

Problem

Loud background noise

Surround effect (MDRIF520RK) cannot be obtained.

The battery cannot be charged.

Solution

Noise is heard from the connected audio equipment.

• Check if the INPUT SOURCE selector is set to the right position.

• Disconnect the connecting cord with the power of the transmitter on and check if the noise is heard from the headphones. If the noise disappears, the connected equipment is the cause to make that noise.

• When using more than two transmitters, turn off the power of the second transmitter or move it so that the area covered by the infrared rays does not overlap each other.

Press the SURROUND button.

Check that the input signal is stereo.

Check that the unit is connected to audio/video equipment properly.

Open the housing cap. Check if the charging

indicator lights on. If not, put the headphones on the transmitter correctly so that the charging indicator lights on.

The dry battery is installed.

• Install the supplied rechargeable battery.

The rechargeable battery that is not supplied is installed.

• Install the supplied rechargeable battery.

Specifications

General

Modulation system

Frequency modulation

Carrier frequency

Right 2.8 MHz Left 2.3 MHz

Frequency response

12 – 24,000 Hz (MDR-IF420RK) 10 – 24,000 Hz (MDR-IF520RK)

Transmitter

Power source DC IN 9V jack accepts power

Where purchased

U.S.A./Canada U.K. European countries Japan (exept for Japanese

domestic model) Other countries

supplied from the AC power adaptor for use on the following voltages:

Operating voltage

120 V AC, 60 Hz 240 V AC, 50 Hz 220 – 230V AC, 50 Hz 110 V/120 V/220 V/

240 V AC, 50/60 Hz 220 – 230 V AC, 50/60

Hz or 120 V AC, 60 Hz

Supplied Ni-Cd rechargeable battery

Model name NC-AA (HJ) Type Ni-Cd Voltage 1.2 V Capacity 600 mAh

Optional accessories

Sony alkaline battery LR6 (SG) Sony battery R6P (SR) Plug adaptor PC-236HG (stereo mini jack ˜ monaural mini plug) Connecting cords RK-C510HG/RK-C515HG/RK-C520HG (phono plug x 2 ˜ phono plug x 2) RK-G136HG (stereo mini plug ˜ stereo mini plug) RK-G129HG (stereo mini plug ˜ phono plug x 2)

Design and specifications are subject to change without notice.

Audio input Phono jacks/stereo mini jack Dimensions Approx. 121 x 260 x 135 mm

(4 7/8 x 10 1/4 x 5 3/8 in) (w/h/d)

Mass Approx. 190 g (6.7 oz)

Headphones

Power source Supplied Ni-Cd rechargeable

battery R6 (size AA) battery

Mass Approx. 320 g (11.3 oz)

(MDR-IF420RK) Approx. 390 g (13.8 oz) (MDR-IF520RK) including the supplied Ni-Cd battery

AVERTISSEMENT

Bienvenue!

Afin d’éviter tout risque d’incendie ou d’électrocution, ne pas exposer cet appareil à la pluie ou à l’humidité.

Afin d’écarter tout risque d’électrocution, garder le coffret fermé. Ne confier l’entretien de l’appareil qu’à un personnel qualifié.

Nous vous félicitons pour l’achat de ce système de casque stéréo infrarouge Sony MDR-IF420RK/MDR-IF520RK. Avant la mise en service de cet appareil, prière de lire attentivement ce mode d’emploi et de le conserver pour toute référence ultérieure. Cet appareil offre, entre autres, les fonctions suivantes:

• Système de casque infrarouge vous permettant d’écouter un programme sans être gêné par un cordon.

• A une distance de 10 mètres (maximum), les rayons infrarouges émis par le transmetteur offrent une large portée horizontale.

• Serre-tête auto-réglable s’adaptant parfaitement à la forme de la tête.

• Mise sous et hors tension automatique du casque quand vous mettez et enlevez le casque (fonction de mise sous tension et hors tension automatique).

• Effet surround simulant l’acoustique d’une salle de concert ou de cinéma (MDR-IF520RK seulement).

• Réglage du niveau sonore des deux canaux. Vous pouvez en outre ajuster la balance des canaux gauche et droit avec la commande BALANCE (MDRIF520RK seulement).

• Deux sources d’alimentation du casque au choix: pile rechargeable fournie ou pile sèche R6 (format AA) en vente dans le commerce.

A propos de la

Table des matières communication par rayons infrarouges

L’illustration ci-dessous indique la portée approximative des rayons infrarouges émis par le transmetteur.

Transmetteur Env. 4 m

(157

/2 po.)

Env. 4 m

/2 po.)

(157

Remarques

•Ce système utilisant la communication par

rayons infrarouges, le sifflement augmente à mesure que vous vous éloignez du transmetteur, même si vous vous trouvez dans la zone indiquée sur l’illustration. S’il y a un objet entre le récepteur et le transmetteur, le son risque d’être interrompu. Ces phénomènes sont inhérents à la communication par rayons infrarouges et ne signifient pas que le système fonctionne mal.

•Comme les rayons infrarouges ne traversent ni

les murs ni le verre opaque, le récepteur infrarouge doit être placé “en vue” du transmetteur.

•Quand vous utilisez le casque dans la zone

indiquée sur l’illustration, vous pouvez placer le transmetteur devant ou derrière vous, ou à votre droite ou gauche.

•Le son du casque peut varier en fonction de la

position et de l’environnement. Nous vous conseillons d’utiliser le système à l’endroit oú vous obtenez le meilleur son.

•Ne pas couvrir les capteurs infrarouges avec les

mains ou les cheveux.

Rayons infrarouges

Env. 10 m (32.8 pi.)

Préparatifs

Déballage .......................................... 18

Recharge de la pile du casque ........ 18

Raccordement du transmetteur..... 20

Utilisation du système

Ecoute d’un programme .................22

Remplacement des oreillettes ......... 26

Informations complémentaires

Précautions ........................................26

Guide de dépannage........................ 27

Spécifications ....................................29

+ 42 hidden pages