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8

4

When you put on the headphones the
headphone power turns on
automatically.

5

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.

Try the above steps 3 and 5 until the
receiving performance becomes better.

Sending RF signals from the Transmitter

The transmitter starts sending the RF signals
automatically, when it detects audio signals from
the equipment connected.
If it does not detect an audio signal for more than
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 the
power indicator will light in red again.
If the audio signal is very weak, the transmitter
does not send RF signals. If the transmitter is
connected to a headphone jack, make sure the
volume of the equipment connected is set to 5 – 6
or higher.
You may not hear the beginning of the sound
from the headphones until the transmitter starts
sending the RF signals after detecting an audio
signal.

Auto power on/off function

When you remove the headphones from your
head, the power turns off automatically.  Do not
allow the self adjusting band to be pulled up,
otherwise the headphones will be switched on.

The power turns on.

Note

If a hissing noise is heard move closer to the transmitter.

TUNING
button

VOL control

Continued

Summary of Contents for MDR-RF875RK

Page 1: ...Operating Instructions Wireless Stereo Headphone System 3 222 709 14 1 2000 Sony Corporation MDR RF875RK ...

Page 2: ... CEK version United Kingdom CED version Germany Sweden Denmark Finland Norway Belgium Switzerland Austria Netherlands France To check for version please refer to the barcode label located on the top of the box Welcome Thank you for purchasing the Sony MDR RF875RK Wireless Stereo Headphone System Before operating the unit please read this manual thoroughly and retain it for future reference Some fe...

Page 3: ...l appliances capable of generating electromagnetic noise Transmitter is placed on a metal instrument Area facing a roadway Noise or interfering signals exist in the surroundings due to radio transceivers in trucks etc Noise or interfering signals exist in the surroundings owing to wireless communication systems installed along roadways Table of contents Getting started Unpacking 4 Setting up the t...

Page 4: ...g cord phono plugs y stereo mini plug 1 m 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 headphone jack Transmitter Left channel white Right channel red Unimatch plug adaptor supplied CD Walkman MD Walkman WALKMAN VCR etc to headphones jack stereo mini jack Connecting cord supplied to AUDIO ...

Page 5: ...n or near a TV it may pick up noise In such case place the transmitter away from the TV DC IN 9V OFF ON FILTER NOISE 1 2 3 CHANNEL R B A L AUDIO IN B To connect to LINE OUT or REC OUT jacks Transmitter to AUDIO IN B jack Connecting cord supplied Right channel red Left channel white to LINE OUT or REC OUT jacks Stereo system VCR etc DC IN 9V OFF ON FILTER NOISE 1 2 3 CHANNEL R B A L AUDIO IN TV etc...

Page 6: ... green indicator goes out 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 Polarity of the plug When you connect the transmitter directly to a monaural 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...

Page 7: ...dio frequency with the CHANNEL selector switch 1 2 3 CHANNEL To recharge the headphone battery after use Since the charger shuts itself off in response to its internal timer after 24 hours there is no need to worry about overcharing Charging and using hours at 1 kHz 1 mW 1 mW output The hours required to fully charge empty batteries Approx charging hours 1 24 Approx using time 60 minutes 25 hours ...

Page 8: ...the power indicator turns off When the transmitter receives an audio signal again it starts sending the RF signals and the power indicator will light in red again If the audio signal is very weak the transmitter does not send RF signals If the transmitter is connected to a headphone jack make sure the volume of the equipment connected is set to 5 6 or higher You may not hear the beginning of the s...

Page 9: ...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 noise reduce the distance between the transmitter unit and the headphones or select the other channel Notes When you use the headphones inside the effective areas of the transmitter the transmitter can be placed in any direction from...

Page 10: ...teries from the headphones before you dispose of the headphones First remove the left headphone s ear pad You will see four screws Remove the four screws and open the housing Problem No sound Muffled sound Solution 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 ...

Page 11: ...headphones POWER indicator light is weak or turned off Charge the built in rechargeable battery or if the POWER indicator is still off after charging the built in rechargeable battery take the headphones to a Sony dealer for replacement of the rechargeable battery If you connect the transmitter to LINE OUT or REC OUT jack of an audio reproducer make sure that the NOISE FILTER switch is set to OFF ...

Page 12: ... pays suivants Versions CEK Royaume Uni Version CED Allemagne Suède Danemark Finlande Norvège Belgique Suisse Autriche Pays Bas France Pour connaître la version que vous utilisez veuillez vous reportez au code barre situé sur la partie supérieure de la boîte Deutsch Hiermit erklärt die Sony Corporation dass sich dieses Gerät in Übereinstimmung mit den grundlegenden Anforderungen und den anderen re...

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