MDRIF230RK - Earphones SONY - Free user manual and instructions

USER MANUAL MDRIF230RK SONY

3-862-873-52(1) © 1998 by Sony Corporation MDR-IF230RK Cordless Stereo Headphone System Operating Instructions page 2 Mode d’emploi page 14 Manual de instrucciones página 262 WARNING 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 on the top of the transmitter and on the headphones housing. The serial number is located at the bottom of the transmitter and the inner side of the headband. Record these numbers in the spaces provided below. Refer to them whenever you call upon your Sony dealer regarding this product. Model No. MDR-IF230RK Transmitter TMR-IF230R Headphones MDR-IF230 Serial No. Transmitter Headphones For the customers in the USA and Canada NICKEL-CADMIUM BATTERY.

BATTERY MUST BE RECYCLED OR

• DISPOSED OF PROPERLY. Nickel-Cadmium batteries are recyclable. You can help preserve our environment by returning your unwanted batteries to your nearest Sony Service Center or Factory Service Center for collection, recycling or proper disposal. Note: In some areas the disposal of nickel- cadmium batteries in household or business trash may be prohibited. For the Sony Service Center nearest you call 1-800-222-SONY (United States only) For the Factory Service Center nearest you call 416-499-SONY (Canada only) Caution: Do not handle damaged or leaking nickel-cadmium batteries. RECYCLING NICKEL-CADMIUM BATTERIES3 Table of contents Getting started Unpacking p. 4
• Setting up the transmitter p. 4
• Charging the rechargeable battery p. 6
• Setting up the headphones p. 7
• Operating the system Listening to a program p. 8
• About the infrared rays communication 9 Replacing the ear pads p. 9
• Additional information Precautions p. 10
• Troubleshooting p. 11
• Specifications Welcome! Thank you for purchasing the Sony MDR- IF230RK Cordless Stereo Headphone System. Before operating the unit, please read this manual thoroughly and retain it for future reference. Some features are: p. 12

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

• Broad horizontal listening area that gives you superb sound virtually anywhere in the room.

• 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).

• The VOL control adjusts the volume level of both channels.

• The power source of the headphones can be selected from either a supplied rechargeable battery or a commercially available R6 (size AA) dry battery.4 ( Getting started Unpacking Check that you have the following items:

• Ni-Cd Rechargeable battery NC-AA (HJ)

• Headphones TMR-IF230R MDR-IF230 Setting up the transmitter 1 Connect the transmitter to audio/video equipment. a When connecting to your audio/video system's LINE OUT or REC OUT jacks, connect the cord to the transmitter's LINE IN jack only. Note If your audio/video equipment has a stereo minijack(LINE OUT), connect the stereo minijack(LINE OUT) to LINE IN of the transmitter byusing optional connecting cord RK-G136HG.Connecting the LINE OUT jack of your audio/video equipment to PHONES IN of thetransmitter will cause low or muffled sound. Toconnect to PHONES IN of the transmitter withthe supplied cord, use a headphones jack on theaudio/video equipment. Stereo system, TV, VCR, etc. Transmitter to LINE IN jack Connecting cord (supplied) Left channel (white) Right channel (red) to LINE OUT or REC OUT jacks

PHONES IN5 b When connecting to your Discman's headphones jack, connect the cord to the transmitter's PHONES IN jack only. 2 Connect the transmitter to a power source. Notes

• Do not connect to the PHONES IN jacks and LINE IN jack 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.

• 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. Polarity of the plug Discman, WALKMAN*, TV, VCR, etc. Transmitter to PHONES IN jacks Right channel (red) Left channel (white) to a headphones jack (stereo mini jack) to a headphones jack (stereo phone jack) Connecting cord (supplied) Unimatch plug adaptor (not supplied)

PHONES IN AC power adaptor (supplied) Transmitter to an AC outlet to DC IN 9 V jack

PHONES IN6 Charging the rechargeable battery The headphones are powered by a rechargeable battery NC-AA (HJ) (supplied) or a dry cell battery (not supplied). Charge the rechargeable battery before use. NC-AA (HJ) is applicable only for Sony cordless/wireless headphone systems. Never use for any other purpose. 1 Check that the transmitter power is off.

OFF/CHGPOWER 2 Open the battery charger lid on the transmitter. 3 Insert the supplied rechargeable battery NC-AA (HJ), making sure to match battery polarity with the ] and } marks on the charger case. The CHARGE indicator then lights up and charging starts. 4 Close the battery charger lid on the transmitter. Charging time and battery life About 24 hours is required to fully charge the rechargeable battery. Once fully charged, the battery provides about 30 hours of operation. One hour charging of the rechargeable battery enables about 1 hours and 30 minutes of operation. Notes

• This system is designed to charge only the supplied rechargeable battery for safety. This system cannot charge other batteries even if they have the same shape.

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

• As this system is not affected by the memory effect of the Ni-Cd battery, recharging the supplied battery before it is completely discharged is not a problem.

• When the transmitter power is turned on, the battery charger does not operate. When to recharge the battery Recharge the supplied battery when the POWER indicator on headphones dims, and hissing or noise occurs. If the POWER indicator dims even after full charging, the battery is completely dead. To purchase a new rechargeable battery, consult your nearest Sony dealer.7 Setting up the headphones 1 Open the battery compartment lid on top of the left housing. 2 Insert the supplied rechargeable battery NC-AA (HJ) by matching the ] on the battery to the ] terminal on the lid. Make sure that the battery is charged. 3 Close the battery compartment lid. Removing the battery Open the battery compartment lid, while keeping the housing level and remove the battery from the battery compartment as illustrated below. Using a dry cell battery Insert the dry cell battery into the headphone battery compartment in the same way as when inserting the rechargeable battery. Battery life When to replace the battery Replace the battery with a new one when the POWER indicator on the headphones dims, and a hissing noise increases. Housing (left) Battery Battery compartment lid Battery Sony alkaline batteryLR6/AM3 (N)Sony batteryR6P/SUM-3 (NS) Approx. hours

( Operating the system Listening to a program 1 Turn on the audio/video equipment connected to the transmitter. 2 Turn on the transmitter. The infrared emitters light up. POWER OFF/CHG 3 Put on the headphones and the power turns on automatically. The power indicator glows red when the power turns on. 4 Adjust the volume. Auto power on/off function When you remove the headphones, the power turns off automatically. Do not pull up the self adjusting band when not using the headphones, 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 “About the infrared rays communication”), 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. After listening to a program Take the headphones off before turning off the transmitter. Otherwise you may hear some noise when the infrared rays are suddenly cut off. 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.9 About the infrared rays communication The illustration below shows the approximate area covered by the infrared rays emitted from the transmitter. Notes•If you use the headphones at too great adistance from the transmitter, you may hear ahissing noise and if there is an object betweenthe receiver and the transmitter, the sound maybe interrupted. These phenomena are inherentto infrared ray communication and do notmean that there is a problem with the unititself.•The infrared rays will not penetrate walls oropaque glass, therefore, be sure to stay withinsight of the transmitter.•When you use the headphones inside the areaillustrated in the diagram, the transmitter canbe placed in the front, behind or by the side ofthe listener.•The sound you hear varies according to yourposition and the transmitter position. Tryfinding a position which yields the best sound. Replacing the Ear Pads When the ear pads become dirty or damaged, consult your nearest Sony dealer and replace them as illustrated below. Remove the old ear pad by pulling it out. 45° 45° Transmitter Approx. 3 m (118

/8 in.) Approx. 3 m (118

/8 in.) Infrared ray Approx. 7 m (23 ft.) Place the new ear pad around the driver unit as illustrated.10 ( Additional information Precautions

• Before operating the system, check that the operating voltage of your system is identical with the voltage of your local power supply.

• The CE mark on the unit is valid only for products marketed in the European Union.

• When the headphones is not to be used for a long period of time, remove the battery 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.

• Do not leave the cordless 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.11 Troubleshooting No sound/Muffled sound / Turn on the transmitter and the headphones 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. (Around level 5 or 6 on the volume control should be appropriate.) / 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. / When the LINE OUT jack of your audio/ video equipment is connected to PHONES IN jack of the transmitter, the sound will be low. Connect the LINE OUT jack to the LINE IN jack as described in “Setting up the transmitter”. Distortion / If the transmitter is connected to the headphones jack, turn down the volume of the connected audio/ video equipment. (Around level 5 or 6 on the volume control should be appropriate.) / 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. / When the headphone’s jack output is connected to the LINE IN jack of the transmitter, increasing the volume of the connected audio/video equipment may cause distortion. Connect the headphones jack output instead to PHONES IN jack as described in “Setting up the transmitter”. Loud background noise / 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 form the sunlight. / If the transmitter is connected to the headphones jack, turn up the volume of the connected audio/video equipment. (Around level 5 or 6 on the volume control should be appropriate.) / 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.12 Specifications General Modulation system Frequency modulation Carrier frequency Right 2.8 MHz Left 2.3 MHz Frequency response 18 – 22,000 Hz Transmitter TMR-IF230R Power source DC IN 9 V jack accepts power supplied from the AC power adaptor for use on the following voltages: Audio input Phono jacks/stereo mini jack Dimensions Approx. 152 × 40 × 72 mm (6 × 1