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3-222-709-14(1)
Wireless Stereo
Headphone System
Operating Instructions
MDR-RF875RK
© 2000 Sony Corporation
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WARNING Welcome! To prevent fire or shock hazard, do not Thank you for purchasing the Sony expose the unit to rain or moisture. MDR-RF875RK Wireless Stereo Headphone System. Before operating the unit, please read To prevent fire or shock hazard, do not this manual thoroughly and retain it for future place objects filled with liquids, such as reference. vases, on the apparatus. Some features are: • Wireless system that allows you to listen to a To avoid electrical shock, do not open the program
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Notes on receiving Table of contents performance Getting started The system for this equipment utilizes very high Unpacking ...................................................... 4 frequency signals in the 800 MHz band so the Setting up the transmitter ............................ 4 receiving performance may deteriorate due to the Charging the headphone battery ................ 6 surroundings. The following examples illustrate conditions that may reduce the possible receiving range or cause int
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N Getting started Setting up the transmitter Unpacking 1 Connect the transmitter to audio/video Check that you have the following items: equipment. Select one of the hookups • The headphones below depending on the jack type: A To connect to a headphone jack Transmitter to AUDIO IN A jacks • The transmitter DC IN 9V BA R L OFF ON 123 NOISE FILTER AUDIO IN CHANNEL Right channel Left channel (red) (white) • AC power adaptor Connecting cord (supplied) • Unimatch plug adaptor (stereo mini jack y ste
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B To connect to LINE OUT or REC OUT C To connect to a headphone jack of a TV jacks or VCR. Set the NOISE FILTER switch to ON if noise is heard. Transmitter Transmitter to AUDIO IN B jack to AUDIO IN A jacks DC IN 9V BA R L OFF ON 123 NOISE FILTER AUDIO IN CHANNEL DC IN 9V BA R L OFF ON 123 NOISE FILTER CHANNEL AUDIO IN Right channel Left channel (red) (white) Connecting cord (supplied) Connecting cord (supplied) Left channel Right channel to stereo mini jack (white) (red) to LINE OUT or REC OUT
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Continued Charging the 2 Connect the transmitter to an AC outlet using the supplied AC power adaptor. headphone battery Notes Using the headphones for the first time • Use only the supplied AC power adaptor. Do not use When you use the headphones for the first time, any other AC power adaptor. charge the battery in the following manner. 1 Connect the transmitter to a power source. Polarity of the plug Transmitter • When you connect the transmitter directly to a to an AC outlet monaural earphone
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To recharge the headphone battery after N Operating the system use Since the charger shuts itself off in response to its internal timer after 24 hours, there is no need to Listening to a program worry about overcharing. Charging and using hours 1 First turn on the audio/video equipment and start playing. Approx. charging Approx. using time* hours 2 Remove the headphones from the 1 60 minutes transmitter. 24** 25 hours The transmitter’s power indicator will light in red. * at 1 kHz, 1 mW + 1 mW o
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Continued Sending RF signals from the Transmitter The transmitter starts sending the RF signals automatically, when it detects audio signals from 4 When you put on the headphones the the equipment connected. headphone power turns on If it does not detect an audio signal for more than automatically. approximately four minutes, the transmitter will stop sending RF signals, and the power indicator turns off. When the transmitter receives an audio signal again, it starts sending the RF signals, and
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The effective areas of Replacing the ear pads the transmitter When the ear pads become dirty or damaged, you can get replacements from your Sony dealer. The optimum distance is up to approximately Replace them as illustrated below. 100 m without the system picking up some interference. However, the distance may vary 1 Remove the old ear pad by pulling it according to the surroundings and environment. out of the groove on the housing. If the system picks up noise, reduce the distance between the
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N Additional information Troubleshooting Precautions Problem Solution • When the transmitter is not to be used for a No sound/ Check the connection of the audio/ long period of time, disconnect the AC power Muffled video equipment or the AC power adaptor from the AC outlet holding the plug. sound adaptor. Do not pull on the cord. Check that the audio/video • Do not leave the wireless stereo headphone equipment is turned on. system in a location subject to direct sunlight, Turn up the volume on t
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Problem Solution Distortion If the transmitter is Specifications connected to a headphone jack, turn down the volume of the connected General audio/video equipment. Carrier frequency Change the radio frequency with the 863.5 – 864.5 MHz CHANNEL selector on the transmitter. Channel Ch1, Ch2, Ch3 The headphones’ POWER indicator Modulation FM stereo light is weak or turned off. Frequency response • Charge the built-in rechargeable 18 – 22,000 Hz battery or if the POWER indicator is still off after
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Français Par la présente, Sony Corp. déclare que cet appareil est conforme aux exigences essentielles et aux autres dispositions pertinentes Svenska de la directive 1999/5/CE. Härmed intygar Sony Corp. att detta högtalarsystem står i Pour de plus amples informations, veuillez vous reporter à l’URL suivante : http://www.compliance.sony.de/ överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Ce produit est conçu pour être utilisé da
