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Sony MDR-RF820RK - page 1
Operating Instructions Wi r eless Ster eo Headphone System 3-254-600- 12 (1) © 2003 Sony Corporation MDR-RF820RK MDR-RF850RK ...
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Sony MDR-RF820RK - page 2
2 W ARNING To prevent fire or shock hazard, do not expose the unit to rain or moisture. 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 ...
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Sony MDR-RF820RK - page 3
3 Notes on r eceiving performance This system utilizes very high frequency signals in the 800 MHz band so the receiving performance may deteriorate due to the surroundings. The following examples illustrate conditions that may reduce the reception range or cause interference. • Inside a building with walls containing steel beams. • An area with ...
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Sony MDR-RF820RK - page 4
4 N Getting started Unpacking Check that you have the following items: • The headphones (1) • The transmitter (1) • AC power adaptor (1) • Unimatch plug adaptor (1) (stereo mini jack y stereo phone plug) • Connecting cord (1) (phono plugs y stereo mini plug), 1 m • Rechargeable nickel-metal hydride batteries (2) Charging the supplied r ...
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Sony MDR-RF820RK - page 5
5 When the indicator does not light in green Check if the right and left headphones are rested on the transmitter correctly. The indicator will not light up if the headphones’ contact point does not meet the transmitter’s contact pin. Remove the headphones and replace them on the transmitter again so that the indicator lights in green. To recha ...
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Sony MDR-RF820RK - page 6
6 Charging and usage hours * 1 at 1kHz, 1mW+1mW output * 2 hours required to fully charge empty batteries * 3 Time stated above may vary, depending on the temperature or conditions of use. Using the headphones with dry batteries (sold separately) Commercially available (size AAA) dry batteries can also be used to power the headphones. Install the b ...
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Sony MDR-RF820RK - page 7
7 INPUT A INPUT DC IN 9V ! L R B NOISE FIL TER ON OFF CHANNEL 1 2 3 INPUT A INPUT DC IN 9V ! L R B NOISE FIL TER ON OFF CHANNEL 1 2 3 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 * WALKMAN is a registered trademark of Son ...
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Sony MDR-RF820RK - page 8
8 C To connect to TV, etc. If noise occurs when the transmitter is connected to your TV or VCR, set the NOISE FILTER switch to ON. Notes • If you connect the transmitter to LINE OUT or REC OUT jacks of an audio reproducer such as an MD player or CD player, do not set the NOISE FILTER switch to ON. Otherwise, volume will be limited. • The NOISE ...
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Sony MDR-RF820RK - page 9
9 N Operating the system Listening to a pr ogram Before listening To prevent your ears from being damaged, first lower the volume. 1 Turn on the audio/video equipment connected to the transmitter. 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 ...
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Sony MDR-RF820RK - page 10
10 5 Turn up the volume to a moderate level with the VOL control. A MDR-RF850RK Press the TUNE button briefly for automatic tuning of the headphones. If you do not receive a clear audio signal, press it again. B MDR-RF820RK Tune the headphones in to the frequency of the transmitter with the TUNE control until you can hear the audio signal loud and ...
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Sony MDR-RF820RK - page 11
11 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 out of the groove on the hou ...
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Sony MDR-RF820RK - page 12
12 N Additional information Pr ecautions • If the transmitter is not to be used for a long period of time, disconnect the AC power adaptor from the AC outlet by holding the plug. Do not pull on the cord. • Do not leave the wireless stereo headphone system in a location subject to direct sunlight, heat or moisture. Notes on headphones Preventing ...
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Sony MDR-RF820RK - page 13
13 Specifications General Carrier frequency 863.5 – 864.5 MHz Channel Ch1, Ch2, Ch3 Modulation FM stereo Frequency response MDR-RF820R : 20 – 20,000 Hz MDR-RF850R : 10 – 22,000 Hz Transmitter TMR-RF850R Power source DC 9 V: supplied AC power adaptor Audio input phono jacks/stereo mini jack Dimensions Approx. 133 × 124 × 136 mm (5 1 / 4 × 5 ...
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Sony MDR-RF820RK - page 14
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Sony MDR-RF820RK - page 15
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Sony MDR-RF820RK - page 16
Svenska Härmed intygar Sony Corp. att detta högtalarsystem står i överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Mer information finns på webbadressen: http://www.compliance.sony.de/ Den här produkten är avsedd att användas i följande länder. Version CEK: Storbrit ...
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