3-222-708-14(1) Wireless Stereo Headphone System Operating Instructions MDR-RF845RK MDR-RF815RK Sony Corporation © 2000 Printed in Korea
WARNING Welcome! To prevent fire or shock hazard, do not expose the unit to rain or moisture. Thank you for purchasing the Sony MDR-RF845RK/RF815RK Wireless Stereo Headphone System. Before operating the unit, please read this manual thoroughly and retain it for future reference.
Notes on receiving performance The system for this equipment 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 possible receiving range or cause interference with reception. • Inside a building with walls containing steel beams. • Area with many steel file cabinets, etc. • Area with many electrical appliances capable of generating electromagnetic noise.
N Getting started Unpacking Check that you have the following items: • The headphones Setting up the transmitter 1 Connect the transmitter to audio/video equipment.
B To connect to LINE OUT or REC OUT jacks Transmitter 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.
Continued 2 Connect the transmitter to an AC outlet using the supplied AC power adaptor. Notes • Use only the supplied AC power adaptor. Do not use any other AC power adaptor. Charging the headphone battery Using the headphones for the first time When you use the headphones for the first time, charge the battery in the following manner. 1 Connect the transmitter to a power source.
To recharge the headphone battery after use Since little electric current is used for charging, there is no need to worry about overcharging. Charging and using hours Approx. charging hours Approx. using time* MDRRF845RK MDRRF815RK 1 50 minutes 55 minutes 24** 20 hours N Operating the system Listening to a program 1 2 23 hours First turn on the audio/video equipment and start playing. Remove the headphones from the transmitter. The transmitter’s power indicator will light in red.
Continued 5-A Turn up the volume to a moderate level with the VOL control. Press the TUNING button briefly for automatic tuning of the headphones. If you do not receive a clear audio signal, press it again. A MDR-RF845RK TUNING button Sending RF signals from the Transmitter The transmitter starts sending the RF signals automatically, when it detects audio signals from the equipment connected.
The effective areas of the transmitter The optimum distance is up to approximately 100 m without the system picking up some interference. However, the distance may vary according to the surroundings and environment. If the system picks up some noise while using it within the above mentioned distance, reduce the distance between the transmitter unit and the headphones, or select the other channel.
N Additional information Troubleshooting Precautions • 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 wireless 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.
Problem Solution Distortion If the transmitter is connected to the headphones jack, turn down the volume of the connected audio/video equipment. Change the radio frequency with the CHANNEL selector on the transmitter. Loud background noise Specifications General Carrier frequency 863.5 – 864.5 MHz Channel Ch1, Ch2, Ch3 The headphones’ POWER indicator light is weak or turned off.
Svenska Den här utrustningen uppfyller de väsentligaste kraven enligt 1999/5/EC Radio and Telecommunications Terminal Equipment Directive. Den här produkten är avsedd att användas i följande länder. Version CEK: Storbritannien Version CED: Tyskland, Sverige, Danmark, Finland, Norge, Belgien, Schweiz, Österrike, Nederländerna, Frankrike, Portugal Produktens version framgår av streckkodsetiketten på lådans översida.
