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3-254-600-12(1)
Wireless Stereo
Headphone System
Operating Instructions
MDR-RF820RK
MDR-RF850RK
© 2003 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-RF820RK/RF850RK Wireless Stereo Headphone System. Before operating the unit, To prevent fire or shock hazard, do not please read this manual thoroughly and retain it place objects filled with liquids, such as for future 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
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Notes on receiving Table of contents performance Getting started This system utilizes very high frequency signals Unpacking ...................................................... 4 in the 800 MHz band so the receiving Charging the supplied rechargeable performance may deteriorate due to the batteries .................................................... 4 surroundings. The following examples illustrate Setting up the transmitter ............................ 7 conditions that may reduce the recep
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N Getting started Charging the supplied rechargeable batteries Unpacking The supplied rechargeable nickel-metal hydride Check that you have the following items: batteries are not charged from the first time you use them. Be sure to charge them before use. • The headphones (1) To charge the headphones, place them on the transmitter. 1 Press the button of the left housing to open the battery compartment lid. • The transmitter (1) The battery compartment lid comes off. Button • AC power adaptor (1)
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3 Close the battery compartment lid. Right housing Left housing When the indicator does not light in green 4 Connect the supplied AC power Check if the right and left headphones are rested on the transmitter correctly. The indicator will adaptor to the transmitter. not light up if the headphones’ contact point does Transmitter not meet the transmitter’s contact pin. Remove the headphones and replace them on the to an AC outlet transmitter again so that the indicator lights in green. To recharge
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Charging and usage hours Notes on Batteries 1 • Do not charge a dry battery. Approx. Approx. usage time* • Do not carry a dry battery together with coins changing hours MDR-RF820RK MDR-RF850RK or other metallic objects. It can generate heat if the positive and negative terminals of the 3 3 1 hour 80 minutes* 75 minutes* battery accidentally come into contact with 2 3 3 16 hours* 18 hours* 15 hours* metallic objects. • If you are not going to use the unit for a long 1 * at 1kHz, 1mW+1mW output ti
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B To connect to LINE OUT or REC OUT jacks Setting up the Transmitter transmitter 1 Connect the transmitter to audio/ video equipment. 1 CHANNEL 2 3 Select one of the hookups below ON NOISE FILTER OFF depending on the jack type: INPUT A A To connect to a headphones jack to INPUT A L jack Transmitter INPUT B R 1 CHANNEL 2 3 DC IN 9V ! ON NOISE FILTER Connecting cord OFF (supplied) INPUT A Left channel (white) L to INPUT B INPUT jacks B Right channel R (red) Left channel Right channel DC IN 9V (whi
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C To connect to TV, etc. 2 Connect the supplied AC power If noise occurs when the transmitter is adaptor to the transmitter. connected to your TV or VCR, set the NOISE FILTER switch to ON. to an AC Transmitter to INPUT B Transmitter outlet jacks 1 CHANNEL 2 3 ON NOISE FILTER OFF AC power INPUT A adaptor (supplied) Left channel L (white) INPUT B Right channel R (red) DC IN 9V ! to DC IN 9 V jack Notes • Use only the supplied AC power adaptor. Do not use Connecting cord any other AC power adaptor
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N Operating the system 3 Select the radio frequency with the CHANNEL selector switch. Listening to a program 1 CHANNEL 2 Before listening 3 To prevent your ears from being damaged, first lower the volume. 1 Turn on the audio/video equipment 4 Put on the headphones. connected to the transmitter. The power indicator on the upper part If the transmitter is connected to the of the right housing glows red. Be sure headphone jack, set the volume control to put the right housing (R) on your of the audi
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Sending RF signals from the transmitter The transmitter starts sending RF signals 5 Turn up the volume to a moderate automatically when it detects an audio signal level with the VOL control. from the equipment connected. If it does not detect an audio signal for more than A MDR-RF850RK about four minutes, the transmitter will stop Press the TUNE button briefly for sending RF signals, and the power indicator will automatic tuning of the headphones. turn off. When the transmitter receives an audi
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The effective areas of Replacing the ear pads the transmitter The ear pads are replaceable. If the ear pads become dirty or worn out, replace them as The optimum distance is up to approximately illustrated below. 100 m without the system picking up some The ear pad is not commercially available. You interference. However, the distance may vary can order replacements from the store where you according to the surroundings and environment. purchased this system, or at your nearest Sony If the syste
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N Additional information Troubleshooting Precautions Problem Solution • If the transmitter is not to be used for a long No sound/ Check the connection of the audio/ period of time, disconnect the AC power Muffled video equipment or the AC power adaptor from the AC outlet by holding the sound adaptor. plug. 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
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Problem Solution Distortion If the transmitter is connected to the Specifications headphone jack, volume of the connected audio/video equipment. General Change the radio frequency with the Carrier frequency CHANNEL selector on the 863.5 – 864.5 MHz transmitter. Channel Ch1, Ch2, Ch3 The headphones’ POWER indicator light is weak or turned off. Modulation FM stereo • Charge the supplied rechargeable Frequency response batteries or if the POWER indicator MDR-RF820R : 20 – 20,000 Hz is still off aft
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Deutsch Hiermit erklärt die Sony Corporation, dass sich dieses Gerät in Übereinstimmung mit den grundlegenden Anforderungen und den Svenska anderen relevanten Vorschriften der Richtlinie 1999/5/EG befindet. Erläuterungen dazu finden Sie unter folgendem URL: Härmed intygar Sony Corp. att detta högtalarsystem står i http://www.compliance.sony.de/ överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Dieses Gerät kann in folgenden Länd
