MDRDS4000 - Earphones SONY - Free user manual and instructions

Product Type	Wireless Digital Surround Headphone System
Brand	Sony
Model	MDR-DS4000
Dimensions (processor)	Approx. 160 × 160 × 200 mm (w × d × h)
Weight (headphone)	Approx. 300 g (including batteries)
Power supply	9 V DC power adapter supplied; Ni-MH rechargeable batteries BP-HP550 (supplied) or AAA alkaline batteries (optional)
Battery life (rechargeable batteries)	Approx. 7 hours after 16 hours of charging
Battery life (alkaline batteries)	Approx. 13 hours (Sony LR03/AM-4 batteries)
Transmission range	Approx. 7 meters forward (45° area)
Frequency response (processor)	12 – 24,000 Hz
Frequency response (headphone)	10 – 22,000 Hz
Supported audio formats	Dolby Digital, Dolby Pro Logic II, DTS, MPEG-2 AAC
Virtual modes	CINEMA, MUSIC, OFF
Compression function	Yes (dynamic range compression)
Inputs	1 optical digital input (rectangular), 1 analog input (L/R jacks)
Output	1 optical digital output (rectangular)
Automatic power on	Yes (by lifting the headband)
Automatic charging	Yes (by placing the headset on the processor)
Care and cleaning	Soft cloth slightly dampened with a mild detergent solution; do not use solvents
Safety	Do not expose to moisture; do not open; avoid shocks; refer repairs to qualified personnel
Available spare parts	Replacement earpads, BP-HP550 rechargeable batteries, additional headset MDR-IF4000

Frequently Asked Questions - MDRDS4000 SONY

How to charge the headphone batteries?

Place the headset on the processor aligning the contacts. The CHG indicator lights red. Full charging takes about 16 hours and stops automatically. Use only the supplied Ni-MH rechargeable batteries BP-HP550.

What is the battery life of the headset?

With the supplied rechargeable batteries, battery life is about 7 hours after a full charge. With AAA alkaline batteries (sold separately), it can reach up to 13 hours (depending on brand and usage conditions).

Can I use ordinary alkaline batteries?

Yes, you can use AA size alkaline batteries (LR03). Insert them into the compartment observing polarity. Note that the charging function is not active with alkaline batteries.

How to connect the processor to a TV?

You can use an optical digital connection (supplied cable) on the DIGITAL IN jack, or an analog connection via the LINE IN jacks with an audio cable (sold separately). Then select the source with the INPUT SELECT switch.

Why is there no sound in the headset?

Several possible causes: the headset is not properly worn (the headband must be lifted to turn it on), the volume is too low, the input selector is incorrectly positioned, an obstacle blocks the infrared, or the batteries are low. Also check that the source device is turned on and playing.

How to get surround sound?

Use the EFFECT switch on the processor. Set it to CINEMA for movies or MUSIC for music. Make sure the audio source is multi-channel (Dolby Digital, DTS, etc.). The DECODE MODE indicator shows the detected format.

The sound is cut off or intermittent, what to do?

This may be due to an obstacle between the headset and the processor, too great a distance, interfering infrared light (sun, plasma screen) or weak batteries. Move closer to the processor, remove obstacles, and recharge or replace the batteries.

Can I use multiple headsets with one processor?

Yes, you can use multiple additional MDR-IF4000 headsets (sold separately) simultaneously. The number of headsets is unlimited within the infrared transmission area. Charge them on the same processor.

How to replace the earpads?

Gently pull the old earpad to remove it. Place the new earpad around the earphone housing, pushing it until it fits securely. Replacement earpads are available from your Sony dealer.

What to do if the CHG indicator does not light during charging?

Make sure the headset is correctly positioned on the processor: the headset contacts must touch the processor pins. If necessary, remove and replace the headset. Check that you are using the supplied rechargeable batteries (BP-HP550) and not alkaline batteries.

USER MANUAL MDRDS4000 SONY

Digital Surround Headphone System

Operating Instructions ____ GB

Mode d'emploi FR

To prevent fire or shock hazard, 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.

Do not install the appliance in a confined space, such as a bookcase or built-in cabinet.

For the customers in the USA

Owner's Record

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

Model No. MDR-DS4000

Processor DP-IF4000

Headphones MDR-IF4000

Serial No.

Processor ____

Headphones ____

NOTICE FOR THE CUSTOMERS IN THE U.S.A.

NOTE

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

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

RECYCLING NICKEL METAL HYDRIDE BATTERIES

Nickel Metal Hydride batteries are recyclable. You can help preserve our environment by returning your used rechargeable batteries to the collection and recycling location nearest you.

RECYCLE RBRC Mi-MH 1.800.822.8837

For more information regarding recycling of rechargeable batteries, call toll free 1-800-822-8837, or visit http://www.rbrc.org/

Caution: Do not handle damaged or leaking Nickel Metal Hydride batteries.

Simple line drawing of a trash bin with two crossed lines indicating no waste or restriction (no text or symbols)

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 city office, your household waste disposal service or the shop where you purchased the product.

Table Of Contents

Main Features 4

Checking the Components and Accessories .... 5

Location and Function of Parts ... 6

Front Panel of the Processor ...... 6

Rear Panel of the Processor ...... 7

Headphone Part Descriptions ..... 8

Charging the Supplied Rechargeable Nickel-metal Hydride batteries 9

Inserting the supplied rechargeable nickel-metal hydride batteries ..... 9

Charging.... 10

Checking the remaining battery power 12

Using the headphones with alkaline batteries (sold separately) ..... 12

Connecting the Headphone System 13

Connecting the processor to digital components .... 13

Connecting the processor to analogue components.... 14

Listening to the Sound of a Connected Component ...... 16

Enjoying with Additional Headphones 21

Replacing the Ear Pads ...... 22

Troubleshooting...... 23

Precautions.... 26

Specifications 27

Main Features

The MDR-DS4000 is a digital surround headphone system using digital infrared transmission. You can enjoy multi-channel surround sound with headphones by simply connecting the digital surround processor to a DVD player or a Digital TV, a Digital Broadcasting Satellite Receiver, etc., with the supplied optical digital connecting cable.

• Cordless headphones using a digital infrared transmission system which reproduce uncompressed transmission sound, resistant to external noise and interference.
• Compatibility of MDR-DS4000 with a wide variety of audio formats. Compatible with Dolby Digital*, Dolby Pro Logic II*, DTS*, and MPEG-2 AAC* formats. (Proprietary algorithm allows full reproduction of "Dolby Digital Surround EX" software.)
• Stunning 5.1ch surround sound capability based on newly developed XD technology.
• Battery is automatically charged by placing the headphones on the processor.
• Built-in audio compression function for easy listening even in the bursting and whispering sound by compressing the dynamic range.
• Built-in digital through terminal. Signal to the DIGITAL IN terminal is parallel routed through, for convenient integration into your existing system with no need to reconfigure your hookup.
• Self-adjusting mechanism headband eliminating the need for adjustment.
• Auto Power On/Off function automatically turns on the headphones when you put them on, and turns them off when they are removed.
• Uses either rechargeable nickel-metal hydride batteries (supplied) or commercially available (size AAA) alkaline batteries.
  * The digital surround processor for this system incorporates the Dolby Digital decoder, the Dolby Pro Logic II decoder, the DTS decoder and the MPEG-2 AAC decoder.

Manufactured under licence from Dolby Laboratories and Digital Theater Systems, Inc.

"Dolby," "Pro Logic," the "AAC" logo and the double-D symbol are trademarks of Dolby Laboratories.

“DTS” and “DTS VIRTUAL” are trademarks of Digital Theater Systems, Inc.

AAC patent marking

Pat. 5,848,391; 5,291,557; 5,451,954; 5 400 433; 5,222,189; 5,357,594; 5 752 225; 5,394,473;

5,583,962; 5,274,740; 5,633,981; 5 297 236; 4,914,701; 5,235,671; 07/640,550; 5,579,430;

08/678,666; 98/03037; 97/02875; 97/02874; 98/03036; 5,227,788; 5,285,498; 5,481,614;

5,592,584; 5,781,888; 08/039,478; 08/211,547; 5,703,999; 08/557,046; 08/894,844

The validity of the CE marking is restricted to only those countries where it is legally enforced, mainly in the countries EEA (European Economic Area).

Checking the Components and Accessories

Before setting up the system, check that all of the components are included.

Line drawing of a computer tower with ventilation slots and a curved handle (no text or symbols)

AC power adaptor (1)

Cordless stereo headphones MDR-IF4000 (1)Processor DP-IF40

Line drawing of a pair of headphones (no text or symbols)

Rechargeable nickel-metal hydride batteries BP-HP550 (2)

Line drawing of a rectangular electronic device connected to a cable with a terminal connector (no text or symbols)

Optical digital connecting cable (rectangular type rectangular type) (1)

Two identical mechanical components with circular end caps and plus signs, no text or symbols present

Line drawing of a coiled cable with two connectors and a terminal connector (no text or symbols)

Front Panel of the Processor

1 COMPRESSION OFF ON 2 EFFECT MUSIC OFF CINEMA 3 INPUT SELECT ANALOG DIGITAL 4 5 6

1 COMPRESSION switch

(see page 18 for details).

2 EFFECT switch

(see page 17 for details).

Slide to select the sound field (OFF/CINEMA/MUSIC).

3 INPUT SELECT switch

Slide to select the input source (DIGITAL/ANALOG).

4 CHG indicator

Lights red while charging.

5 Infrared emitter

Set the emitter in a position so that there is a straight, unobstructed path to the sensor.

6 DECODE MODE indicator

(see page 18 for details).

Rear Panel of the Processor

0dB ATT 8dB LINE IN R IN DIGITAL OUT DC IN 9V 1 2 3 4 5

1 ATT (attenuator) switch

Set this switch to "0dB" if the volume is too low at analogue input. Normally, this switch should be set to "-8dB."

2 LINE IN jacks

(see page 14 for details)

Connect the audio output jacks on audio or video component (sold separately), such as a video cassette player or TV, to these jacks.

3 DIGITAL IN jack

(see page 13 for details)

Connect a DVD player, Digital

Broadcasting Satellite Receiver, or other digital component (sold separately) to this jack.

4 DIGITAL OUT jack

(see page 13 for details)

Connected components' digital signal integrity retained when installed.

5 DC IN 9V jack

Connect the supplied AC power adaptor to this jack. (Be sure to use the supplied AC power adaptor. Using products with different plug polarity or other characteristics can cause a malfunction.)

Headphone Part Descriptions

5 4 3 2 1 6 7 4 8

1 Ear pad (left)
2 Battery case button
3 Battery case

Press the button of the left housing to open the battery compartment lid.

This battery case is for the rechargeable nickel-metal hydride batteries (supplied) or commercially available (size AAA) alkaline batteries only.

4 Infrared sensor

There are infrared sensors in two locations on both sides.

5 Self-adjusting band

The headphones automatically turn on when you put them on.

6 VOL (Volume) control
Use to adjust the volume.
7 Ear pad (right)
8 POWER indicator

By pulling up the self-adjusting band, the indicator lights red when battery power is sufficient.

Charging the Supplied Rechargeable Nickel-metal Hydride batteries

The supplied rechargeable nickel-metal hydride batteries are not charged from the first time you use them. Be sure to charge them before use.

To charge the headphones, place them on the processor.

Inserting the supplied rechargeable nickel-metal hydride batteries

1 Press the button of the left housing to open the battery compartment lid. The battery compartment lid comes off.

Button

2 Insert the supplied rechargeable nickel-metal hydride batteries into the battery compartment matching the ⊕ terminal on the batteries to the ⊕ marks in the compartment.

Do not attempt to charge any other kind of battery with this unit.

Technical line drawing of a mechanical assembly with no visible text or symbols

3 Close the battery compartment lid.

Diagram of a mechanical component with a curved arrow indicating rotation or force (no text or symbols)

Charging

1 If your AC power adaptor is equipped with a voltage selector, first be sure that it is set to the correct voltage for your area before connecting it to an AC outlet.

240V VOLTAGE SELECT

2 If your AC power adaptor is equipped with an on/off switch, set it to ON. The power is supplied to the processor.

On/off switch

3 Connect the supplied AC power adaptor to the processor.

Processor To an AC outlet AC power adaptor (supplied) To DC IN 9V jack

Notes

- Be sure to use the supplied AC power adaptor. Using AC adaptors with different plug polarity or other characteristics can cause product failure.

Unified polarity plug

- Be sure to always use the supplied AC power adaptor. Even AC power adaptors having the same voltage and plug polarity can damage this product due to the current capacity or other factors.

4 Rest the headphones on the processor so that the headphones' contact point meets the processor's contact pin while making sure that the CHG indicator lights up.

It takes approx. 16 hours to fully charge the battery (the CHG indicator goes off

when charging is complete). When placing the headphones on the processor, be sure to hold them with both hands so that the right and left housings are horizontal. Place the headphones vertically on the processor then tilt them back until a click is heard.

Contact point Contact pin Right housing Left housing

If the CHG indicator is not lit

Check if the right and left headphones are rested on the processor correctly. The indicator will not light up if the headphones' contact point does not meet the processor's contact pin. In this case, remove the headphones and place them on the processor again so that the indicator lights up.

To recharge the headphone battery after use

Place the headphones on the processor after use. The CHG indicator lights up, and the DECODE MODE indicator goes off, and then charging starts.

Since the built-in timer recognizes when charging is complete (approx. 16 hours), there is no need to remove the headphones from the processor after charging has completed.

Notes

• The processor automatically turns off while charging the batteries.
• This system is designed to charge only the supplied rechargeable batteries, type BP-HP550 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 rechargeable batteries for other components. They are for use with this system only.
• Charge in an environmental temperature of between 0^ and 40^ (between 32^ and 104^ ).
• Do not touch the contact pins of the processor. If a contact pin becomes dirty, charge may not be possible.

Charging and usage hours

Approx. charging hours Approx. usage time*		1
16 hours*2	7 hours*3

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

*2 hours required to fully charge empty batteries

*3 Time stated above may vary, depending on the temperature or conditions of use.

Checking the remaining battery power

Pull up the self-adjusting band and check the POWER indicator located on the right housing. The batteries are still serviceable when the indicator lights red.

Charge the rechargeable batteries or install new alkaline batteries if the POWER indicator light dims, flashes, or the sound becomes distorted or intermittent.

Line drawing of a pair of headphones with an upward arrow indicating motion (no text or symbols)

POWER indicator

Note

The rechargeable nickel-metal hydride batteries should be replaced with new ones when they last only half the expected time, after a full charge has been performed. The rechargeable batteries, type BP-HP550, are not commercially available. You can order the batteries from the store where you purchased this system, or at your nearest Sony dealer.

Using the headphones with alkaline batteries (sold separately)

Commercially available (size AAA) alkaline batteries can also be used to power the headphones. Install the batteries in the same manner as described in “Inserting the supplied rechargeable nickel-metal hydride batteries” (page 9).

When dry batteries are installed, the battery charge function is not activated.

Battery life

Battery Approx. hours*	1
Sony alkaline battery 13 hours*	2
LR03/AM-4(N)

^*1 at 1 kHz, 1 mW + 1 mW output
*2Time 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 battery together with coins or metallic objects. Heat can be generated by the battery if its positive and negative terminals are accidentally shorted.
• When you are not going to use the unit for a long time, remove the batteries to avoid damage from battery leakage or corrosion.

See “Checking the remaining battery power” for details about checking the remaining battery power.

Connecting the Headphone System

Connecting the processor to digital components

Use the supplied optical digital connecting cable to connect the optical digital output jack*1 on a DVD player, Digital Broadcasting Satellite Receiver or other digital component*2 to the DIGITAL IN jack (black) of the processor.

The connected AV components may require to be set up for optical digital output. Read their operating instructions.

When connecting the processor to an AV amplifier, etc., connect the DIGITAL OUT jack (Red) and external optical digital input jack using the optical digital connecting cable (sold separately).

graph TD
    A["Processor"] --> B["To DIGITAL IN jack (Black)"]
    A --> C["To DIGITAL OUT jack (Red)"]
    B --> D["Optical digital connecting cable (supplied)"]
    C --> E["Optical digital connecting cable (sold separately)"]
    D --> F["To optical digital output jack"]
    E --> G["To optical digital input jack"]
    F --> H["DVD player, Digital Broadcasting Satellite Receiver or other digital component having an optical digital output jack"]
    G --> I["Equipment with optical digital input terminal such as an AV amplifier"]

Notes

• The optical digital connecting cable is an extremely high-precision device and is sensitive to jolts and external pressure. Therefore, be careful when inserting and removing the cable plug.
• The digital input for the processor does not support sampling frequencies of 96 kHz. Set the digital output setting for the DVD player to 48 kHz when using this system. Noise may be heard when a 96 kHz digital signal is input.

*1 If the connected equipment supports PCM output only, all surround sound effects will be processed by DOLBY PRO LOGIC II.
*2 Connection to the optical digital output jack on your personal computer is not guaranteed to work with this system.

DTS

• A DTS-compatible DVD player is required for playback of DVDs recorded in DTS audio. (For more details, see the instruction manual of your DVD player.)
• When playing CDs recorded in DTS format, noise may occur when fast forwarding or rewinding. This is not a malfunction.
• If the DTS digital output is set to "OFF" on the DVD player, no sound may be heard even if the DTS output is selected in the DVD menu.
• No sound may be heard when a DVD player and this unit is analogue-connected. In this case, use a digital connection.

(Continued)

Connecting cables (sold separately)

Use the Optical digital connecting cable POC-20AP (mini-plug rectangular plug) when connecting the optical digital output mini-jack on portable DVD players, portable CD players, or other digital components to the DIGITAL IN jack.

Optical digital selector (sold separately)

Use of the optical digital selector SB-RX100P (4-line input, 3-line output) is recommended when connecting more than one digital component.

Notes on optical digital connecting cable

• Do not drop objects on the optical digital connecting cable or expose the cable to shock.
• Grasp the plug to connect or disconnect the cable.
• Be sure that the ends of the optical digital connecting cable are kept clean. Dust at the ends of the cable can degrade performance.
• When storing the system, attach the cap to the end of the plug and be careful not to fold or bend the optical digital connecting cable with a bend radius less than 25 mm (1 inch).

The bend radius of the optical digital connecting cable should be no less than 25 mm (1 inch).

25 mm (1 inch)

Connecting the processor to analogue components

Use an audio cord (sold separately) to connect to the audio output jacks on a VCR, TV, or other component to the LINE IN (L/R) jacks on the processor.

Processor To LINE IN jacks Audio left (L, white) Audio right (R, red) Audio cord (sold separately) To audio output jacks Audio left (white) Audio right (red) VCR, TV, or other component

Connecting cables (sold separately)

Use the connecting cable RK-G129 (stereo mini-plug pin plug · 2) when connecting a stereo mini-jack (line out jack or headphones jack) to the LINE IN jacks.

Pure diagram of a T-junction connector with two ports, no text or symbols present

In this case, set the volume on the player at a medium level. Noise can occur if the volume on the player is set too low.

See "Specifications: Recommended accessories" (page 27) for details about other connecting cables (sold separately).

Setting the input level

If the volume is low using the analogue input, set the ATT (attenuator) switch to "0dB."

0dB -8dB ATT

Setting Connected components

0dB TV, portable components, and other components with a low output level

-8dB Other components (initial settings)

Notes

• Be sure to lower the volume before setting the ATT switch.
• If audio input to the LINE IN jacks is distorted (sometimes, noise can be heard at the same time), set the ATT switch to “-8dB.”

Listening to the Sound of a Connected Component

Before starting operation, be sure to read "Connecting the Headphone System" (pages 13 to 15) and make the proper connections.

1 Turn on the component connected to the processor.

DVD player, Digital Broadcasting Satellite Receiver or other audio or video component POWER

2 Remove the headphones from the processor.

The processor turns on automatically and, after about 3 seconds, the infrared emitters grow. Then the DECODE MODE indicator lights up, depending on the audio signal input from the connected audio or video component and the setting of the EFFECT switch.

3 Put on the headphones.

The POWER indicator lights red, and the headphones automatically turn on. Be sure to match the right and left side of the headphones with your ears and wear the headphones at the correct angle so that the Auto Power On/Off function works correctly.

POWER indicator

4 Slide the INPUT SELECT switch to select the component you want to listen to.

INPUT SELECT ANALOG DIGITAL

Position of switch Selected sound source

DIGITAL Sound of the component connected to DIGITAL IN jack.

ANALOG Sound of the component connected to LINE IN jacks.

Note

To listen to dual audio (MAIN/SUB) sound sources, connect to the LINE IN jacks, and then select the sound source you want to listen to on the player, TV, or other component.

5 Start playback of the component selected in step 4.

6 Slide a next switch to select the desired sound field.

EFFECT switch

EFFECT MUSIC OFF CINEMA

Position of switch Sound field and suitable sound source

OFF Normal playback of the headphones.

CINEMA Produces the kind of surround sound that is found in a typical movie theatre. Suitable for movie sound sources.

MUSIC Produces the kind of sound field that would be found in a listening room with good acoustics. Suitable for music sources.

Note

The volume of the headphones may vary, depending on the input signal and the setting of the EFFECT switch.

(Continued)

COMPRESSION Switch

COMPRESSION OFF ON

Position of switch Playback Effect

OFF When the EFFECT switch is selected, the sound mode changes to the selected effect.

ON This function maintains overall level of program material: explosive sounds are attenuated while lower level sounds (dialogue, etc.) are enhanced.

Illustration of the compression process

graph LR
    A["explosion"] --> B["input signal"]
    B --> C["compression"]
    C --> D["output signal"]
    D --> E["explosion"]
    E --> F["dialogue"]
    E --> G["standard"]
    F --> H["whisper, background noise"]
    G --> I["whisper, background noise"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333

DECODE MODE indicator

The processor automatically identifies the format of the input audio signal and the corresponding indicator lights up. Switch the audio between Dolby Digital, DTS, MPEG-2 AAC, etc., on the connected equipment (DVD player, etc.).

• DOLBY DIGITAL: Input signal recorded in the DOLBY DIGITAL format.
- DOLBY PRO LOGIC II: Analogue input signal, digital input PCM signal, or Dolby Digital 2-channel signal processed by DOLBY PRO LOGIC II.
(If the sound field is set to "OFF," it is not processed by DOLBY PRO LOGIC II.)
• DTS: Input signal recorded in the DTS format.
- MPEG-2 AAC: Input signal recorded in the MPEG-2 AAC format.

Note

If the equipment connected to the DIGITAL IN jack is not playing back (fast forwarding, rewinding, etc.), the DECODE MODE indicator may not light up correctly.

7 Adjust the volume.

Raise the volume Lower the volume

Notes

• When watching films, be careful not to raise the volume too high in quiet scenes. You may hurt your ears when a loud scene is played.
• You may hear some noise when you disconnect the AC power adaptor from the processor before removing the headphones.
• If the infrared sensors are covered by your hands when adjusting the volume, the Muting function will be activated and volume cannot be adjusted. To adjust the volume, move nearer toward the processor or orient the infrared sensors on the left housing towards the processor.

The headphones automatically turn off when they are removed — Auto Power On/Off function

Do not pull up the self-adjusting band when not in use, as this will consume the battery power.

Self-adjusting band

Transition time between modes

When sliding switches on the processor to change to new modes, the transition time between modes may vary. This is due to differences in system control between modes.

If no sound is heard from the headphones

The sound output from the headphones is cut off if the Muting function is automatically activated when the headphones are outside the infrared transmission area, or when the infrared signals are interrupted. The Muting function is automatically cancelled when you get closer to the processor or there is no longer anything obstructing the path of the infrared signals.

(Continued)

Infrared transmission area

The approximate infrared transmission area from the processor is shown in the illustration below.

Infrared signal Approx. 3 m (10 ft) 45° Approx. 7 m (23 ft) 45° Digital surround processor Approx. 3 m (10 ft)

Notes

• Because this system uses infrared signals, sound may be interrupted if these signals are obstructed. This is due to the infrared signal characteristics, and is not a malfunction.
• Do not cover the infrared sensors with your hands or hair.
• When you use the headphones inside the area in the illustration above, the processor can be placed in front, behind or by the side of you.
• Any noise you hear through the headphones may vary depending on the processor position and room conditions. It is recommended that you place the processor in a location that produces the clearest sound.
• Do not use this system in areas exposed to direct sunlight or strong light. The sound may be interrupted.
• Plasma displays may interfere with normal operation of this system.
• Mixed signals may result if the processor is used with other processors or transmitters.

If an audio signal is not input for 10 minutes

Infrared signal emission from the processor automatically stops when an audio signal is not input for 10 minutes. The infrared signals are automatically emitted when an audio signal is input again. The emission of the infrared signals may stop when an extremely low sound is emitted for about 10 minutes during analogue input. If this happens, raise the volume of the connected audio or video component and lower the volume of the headphones. If signal noise is output from a component connected to the LINE IN jacks, infrared signal emission may not stop.

Notes

• The brightness of the infrared emitter on the digital surround processor may vary. However, this does not affect the transmission area.
• The headphones should be used within the infrared transmission area (see "Infrared transmission area").
• The surround sound effect may not be obtained from sound sources that do not incorporate video, such as music CDs.
• This system simulates the average HRTF* common to most people. However, the effect can differ from person to person since the HRTF can vary between individuals.

Enjoying with Additional Headphones

In this system, by using additional MDR-IF4000 cordless infrared headphones (sold separately), more than one person can enjoy the surround sound experience wirelessly at the same time.

Charge additional headphones with the processor of this system.

* There is no limit to the number of headphones that can be used within the infrared transmission area.

MDR-IF4000 (sold separately)

Line drawing of a computer monitor with a base and ventilation slots (no text or symbols)

Three identical line drawings of a pair of headphones (no text or symbols)

Notes

• The processor turns off automatically while charging. Remove these headphones from the processor when using other headphones.
• Because this unit employs a digital infrared transmission system, cordless infrared analogue headphones (MDR-IF3000, etc.) cannot be used.
• This unit is not compatible with the MDR-DS8000 since the infrared transmission method is different. The MDR-IF8000 cannot be used.

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.

1 Remove the old ear pad by pulling it off.

Illustration of hands performing a mechanical shift or rolling operation on a circular component (no text or symbols present)

2 Place the new ear pad around the housing.

Illustration of two hands holding a rounded object, possibly a medical or anatomical device (no text or symbols visible)

Troubleshooting

If you run into any problems using this headphone system, use the following checklist. Should any problem persist, consult your nearest Sony dealer.

Symptom Cause and remedy

No sound	→Check the connection between the processor and the AV component.
	→Check that the signal is not being input to the digital out jack by mistake when digital input is selected.
	→Check that the connected AV component's optical digital output is set to "ON" when selecting digital input.
	→Turn on the AV component connected to the processor, and start the playback.
	→Check that the INPUT SELECT switch on the processor is set to the component you want to listen to.
	→If you connect the processor to an AV component using the headphone jacks, raise the volume level on the connected AV component.
	→Make sure you are wearing the headphones correctly.
	→Raise the headphone volume.
	→The Muting function is activated.
	· Check if there is any obstruction between the processor and the headphones.· Use the headphones near the processor.· Change the position or angle of the processor.· If a plasma display is placed nearby, place the system farther away from it.
	→The headphones' POWER indicator light dims, flashes, goes off, or the sound becomes distorted or intermittent.· Charge the rechargeable batteries if they are weak, or replace alkaline batteries with new ones. If the POWER indicator is still off after charging the batteries, take the headphones to a Sony dealer.
	→You are trying to play a DTS audio track on a DVD player that does not support DTS.· Either use a DVD player that supports DTS, or select a Dolby Digital or PCM audio track.
	→You are playing back a DVD disc recorded in DTS when DTS digital output setting for the DVD player (including game machines) is "OFF."· See the instruction manual of your DVD player, and change the DTS digital output setting to "ON."
	→You are playing back a DVD disc recorded in DTS when the DVD player (including game machines) and the processor are analogue-connected.· Use the digital connection. (Analogue sound may not be output from the DVD player.)
	→When you have another processor or transmitter, check if more than one processor or transmitter is being used at the same time.· Turn off other processor or transmitter or move to a place outside the range of other processor or transmitter.

(Continued)

Symptom Cause and remedy

Distorted or intermittent sound (sometimes with noise)	→The headphones' POWER indicator light dims, flashes, goes off, or the sound becomes distorted or intermittent.·Charge the rechargeable batteries if they are weak, or replace alkaline batteries with new ones. If the POWER indicator is still off after charging the batteries, take the headphones to a Sony dealer.→Check if there is any obstruction between the processor and the headphones.→Check that the infrared sensors are not covered with your hands or hair.→If you use the headphones by a window where the sunlight is too strong, draw the curtains/blinds to shut out the direct sunlight, or use the headphones away from the sunlight.→Change the position or angle of the processor.→When analogue input is selected, change the ATT switch on the processor to "-8dB."→If you connect the processor to an AV component using the headphone jacks, lower the volume level on the connected AV component.→When using DTS audio sources, set the EFFECT switch on the processor to "CINEMA" or "MUSIC" mode (page 17, 18).
Low sound	→When analogue input is selected, change the ATT switch on the processor to "0dB."→If you connect the processor to an AV component using the headphone jacks, raise the volume level on the connected AV component.→Raise the headphone volume.
Loud background noise	→If you connect the processor to an AV component using the headphone jacks, raise the volume level on the connected AV component.→The headphones' POWER indicator light dims, flashes, goes off, or the sound becomes distorted or intermittent.·Charge the rechargeable batteries if they are weak, or replace alkaline batteries with new ones. If the POWER indicator is still off after charging the batteries, take the headphones to a Sony dealer.→If a plasma display is placed nearby, place the system farther away from it.
The sound cuts off	→The processor stops sending signals, if 10 minutes passes and no signal has been input.·Set the ATT switch on the processor to "0dB."·If you connect the processor to an AV component using the headphone jacks, raise the volume level on the connected AV component.
The surround sound effect is not obtained	→Set the EFFECT switch on the processor to "CINEMA" or "MUSIC" mode (page 17,18).→The audio being played is not a multichannel signal.·The surround effect does not work for monaural sound sources.
The DOLBY DIGITAL indicator does not turn on	→The digital audio output setting for the DVD player (including game machines) may be set to "PCM."·See the instruction manual of your DVD player, and change the setting (such as "Dolby Digital/PCM" or "Dolby Digital") for usage with components having built-in Dolby Digital decoders.→Playback signals are not recorded in Dolby Digital format.→The audio for the chapter being played is not a Dolby Digital signal.

Symptom Cause and remedy

The DOLBY PRO LOGIC II indicator does not turn on	→The EFFECT switch on the processor is set to “OFF.”→Analogue input signal, digital input PCM signal, Dolby Digital 2-channel signal or MPEG-2 AAC 2-channel signal is not input.
The DOLBY PRO LOGIC II indicator turn on	→The EFFECT switch on the processor is set to “CINEMA” or “MUSIC” mode.→Analogue input signal, digital input PCM signal, Dolby Digital 2-channel signal or MPEG-2 AAC 2-channel signal is input.
The DTS indicator does not turn on	→The DTS digital output setting on the DVD player (including game machines) is set to “OFF.”• See the instruction manual of your DVD player, and change the DTS digital output setting to “ON.”→Playback signals are not recorded in DTS format.→The audio for the chapter being played is not a DTS signal.→The DVD player does not support DTS format.• Use a DVD player that supports DTS.
MPEG-2 AAC indicator does not light up.	→Playback signals are not recorded in MPEG-2 AAC format.
The batteries cannot be charged	→Check if the CHG indicator turns on. If not, put the headphones on the processor correctly so that the CHG indicator turns on.→Dry batteries are installed.• Insert the supplied rechargeable nickel-metal hydride batteries.→Rechargeable batteries other than the supplied are installed.• Insert the supplied rechargeable nickel-metal hydride batteries.
The CHG indicator does not turn off.	→The CHG indicator remains lit during charging (approx. 16 hours) by the built-in timer after the headphone is placed on the processor.
Infrared signal emission does not stop (when the INPUT SELECT switch on the processor is set to “ANALOG”)	→Signal noise is output from the connected analogue component.• Unplug the connected analogue component, or set the INPUT SELECT switch on the processor to "DIGITAL," and make sure playback of the component connected to the DIGITAL IN jack is stopped.
No signal from optical digital output	→No power supplied to the processor.• Connect the processor to a power source.→No playback sound from the connected external digital unit at the optical input jack.• Check the external unit is playing back.
Bilingual sound cannot be selected when using digital input. (Both MAIN and SUB can be heard at the same time.)	→Connect the analogue out to the LINE IN jack, and select the sound on the connected component.

Precautions

On safety

• Do not drop, hit, or otherwise expose the processor or headphones to strong shock of any kind. This could damage the product.
• Do not disassemble or attempt to open any parts of the system.

On power sources and placement

- If you are not going to use the system for a long time, unplug the AC power adaptor from the AC outlet. When removing the plug, grip the AC power adaptor. Do not pull on the cord.

- Do not place the system in any of the following locations.

• Location exposed to direct sunlight, near a heater, or other extremely high-temperature location
• Dusty location
  – On an unsteady or inclined surface
• L ocation exposed to large amounts of vibration
  – Bathroom or other high-humidity locations

On headphones

Act considerably

When the volume is too high, the sound leaks outside the headphones. Be careful not to raise the volume so high that it bothers people around you.

There is a tendency to raise the volume when using in noisy places. However, for reasons of safety, it is advised to keep the volume at a level whereby you can still hear sounds around you.

On cleaning

Use a soft cloth slightly moistened with mild detergent solution. Do not use solvents such as thinner, benzene or alcohol as these may damage the surface.

When the product breaks

• When the product breaks, or if a foreign object gets inside the unit, immediately turn off the power and consult your nearest Sony dealer.
• When taking the system to a Sony dealer, be sure to take both the headphones and processor.

Specifications

Digital surround processor (DP-IF4000)

Decoder functions Dolby Digital

Dolby Pro Logic II

DTS

MPEG-2 AAC

Virtual surround function

OFF

CINEMA

MUSIC

Compression function OFF

ON

Secondary carrier wave frequency

3.75 MHz

Transmission distance Approx. 7 m (23 ft) to

the front

Transmission range 12 - 24,000 Hz

Distortion rate 1% or less (1 kHz)

Audio inputs Optical digital input

(rectangular-type) · 1

Analogue input (pin

jack left/right) · 1

Audio output Optical digital output

(rectangular-type) · 1

Power requirements DC 9 V (from the

supplied AC power

adaptor)

Cordless stereo headphones (MDR-IF4000)

Playback frequency range

10 - 22,000 Hz

Power requirements Rechargeable nickel-

metal hydride batteries

(supplied) or

commercially available

(size AAA) alkaline

batteries

Mass Approx. 300 g (11 oz)

(including the

supplied rechargeable

nickel-metal hydride

batteries)

Supplied accessories

AC power adaptor (9 V) (1)

Rechargeable nickel-metal hydride

batteries BP-HP550 (550 mAh min.) (2)

Optical digital connecting cable

(optical rectangular plug optical

rectangular plug, 1.5 m) (1)

Operating Instructions (this manual)

(1)

Recommended accessories

Optical digital connecting cable

POC-15AB (1.5 m) (mini-plug ↔

rectangular plug)

Design and specifications are subject to change without notice.

AVERTISSEMENT

RECYCLE RBRC NI-MH 7.800.822.8837

Symbol of a trash bin crossed out by two diagonal lines (no text or labels)

Line drawing of a computer monitor with ventilation slots and a curved base (no text or symbols)

Line drawing of a pair of headphones (no text or symbols)

Line drawing of a rectangular electronic device connected to a cable with a terminal connector (no text or symbols)

Piles rechargeables nickel-hydrure métallique de type BP-HP550 (2)

Two identical mechanical components with circular end caps and plus signs, no text or symbols present

Line drawing of a coiled cable with two connectors and a clip, no text or symbols present

Technical line drawing of a mechanical component with no visible text or symbols

Simple line drawing of a mechanical component with a curved arrow indicating rotation (no text or symbols)

Chargement

Pure diagram of a multi-pin electrical connector without any text or symbols

Line drawing of a computer monitor with a curved base and ventilation slots (no text or symbols)

Three identical line drawings of a pair of headphones (no text or symbols)

Remarques

Illustration of hands performing a mechanical shift or rolling operation on a circular component (no text or symbols present)

Illustration of two hands holding a rounded object, possibly a medical or anatomical device (no text or symbols visible)

Dépannage

Alimentation Piles rechargeables

nickel-hydrure

métallique (fournies)

rechargeables nickel-

hydrure métallique

fournies)

Accessoires fournis

Piles rechargeables nickel-hydrure

RECYCLE RBRC Ni-MH 7.800.822.8837

Simple line drawing of a trash bin with two crossed lines indicating no waste or prohibition (no text or symbols)

5,583,962; 5,274,740; 5,633,981; 5 297 236; 4,914,701; 5,235,671; 07/640,550; 5,579,430;

08/678,666; 98/03037; 97/02875; 97/02874; 98/03036; 5,227,788; 5,285,498; 5,481,614;

5,592,584; 5,781,888; 08/039,478; 08/211,547; 5,703,999; 08/557,046; 08/894,844

Line drawing of a computer tower with ventilation slots and a curved handle (no text or symbols)

Line drawing of a pair of headphones with earbuds (no text or symbols)

Line drawing of a rectangular electronic device connected to a coiled cable (no text or symbols)

Two identical mechanical components with circular end caps and plus signs, no text or symbols present

Line drawing of a coiled cable with two connectors and a terminal connector (no text or symbols)

Technical line drawing of a mechanical assembly with no visible text or symbols

Diagram of a mechanical component with a curved arrow indicating rotation (no text or symbols)

Carga

Diagram showing a device with a labeled control panel and an inset image of its internal structure.

Pure diagram of a multi-pin electrical connector without any text or symbols

Diagram of a curved mechanical component with a downward arrow indicating force or direction (no text or symbols)

Line drawing of a Procesador device with no text or symbols on the device itself

Three identical line drawings of a pair of headphones (no text or symbols)

Notas

Illustration of hands performing a mechanical shift or rolling operation on a circular component (no text or symbols present)

Illustration of two hands holding a rounded object, no text or symbols present

Line drawing of a computer monitor with ventilation slots and a curved handle (no text or symbols)

AC 전원 어댑터 (1)

Line drawing of a pair of headphones (no text or symbols)

Line drawing of a rectangular electronic device connected to a coiled cable (no text or symbols)

Two identical mechanical components with circular end caps and plus signs, no text or symbols present

Line drawing of a coiled cable with two connectors and a terminal connector (no text or symbols)

프로세서 앞면 패널

1 COMPRESSION OFF ON 2 EFFECT MUSIC OFF CINEMA 3 INPUT SELECT ANALOG DIGITAL 4 5 6

0dB ATT -8dB LINE IN R IN DIGITAL OUT DC IN 9V 1 2 3 4 5

1 ATT(감쇠기) 스위치

Technical line drawing of a mechanical assembly with no visible text or symbols

3 배터리실 뚜껑을 달습니다.

Simple line drawing of a mechanical component with a curved arrow indicating rotation (no text or symbols)

충전하기

Pure diagram of a multi-pin electrical connector without any text or symbols

Diagram of a curved mechanical component with a downward arrow indicating force or direction (no text or symbols)

자동 조절 밴드

모드 간 전환 시간

Line drawing of a portable electronic device with no visible text or symbols

Three identical line drawings of headphones arranged in a row (no text or symbols)

주의점

Illustration of hands performing a mechanical shift or rolling operation (no text or symbols present)

Illustration of two hands holding a rounded object, no text or symbols present

문제 해결