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Tips for charging

Charge supplied battery first

The supplied rechargeable nickel-metal hydride battery is 
not charged from the first time you use it. Be sure to 
charge them before use.

About auto charge function

Placing the headphones on the transmitter automatically 
turns them off, then charging starts. This eliminates the 
need for turning on/off every time you wear and take off 
the headphones.

If CHARGE/RED indicator does not 

light up red

 

– Check if the right and left headphones are rested on the 

transmitter correctly. Take off the headphones and place 
them on the transmitter again so that the headphones’ 
contact points meet the transmitter’s contact pins.

 

– Charging may not be completed if the transmitter’s 

contact pin and headphones’ contact point are dusty. 
Wipe them with a cotton bud, etc.

Charging and usage time

Approx. charging time

Maximum usage time

1)

7 hours

2)

20 hours

3)

1)  at 1 kHz, 0.1 mW + 0.1 mW output
2)  hours required to fully charge an empty battery
3)  Time may vary, depending on the temperature or 

conditions of use.

To recharge supplied battery after 

use

Place the headphones on the transmitter after use. The 
CHARGE/RED indicator lights up red, then charging starts.
When charging is complete, there is no need to remove 
the headphones from the transmitter.

Remaining battery

To check the remaining battery charge of the headphones, 
turn on the POWER switch and check the POWER indicator. 
The battery is still serviceable when the indicator lights up 
green.
Charge the headphones if the POWER indicator turns off, 
dims, flashes, or the sound becomes distorted or noisy.

Notes

 

– Insert the AC adaptor plug firmly.

 

– Be sure to use the supplied AC adaptor. Using AC 

adaptors with different plug polarity or other 
characteristics can cause product failure.

Unified 

polarity plug

 

– The battery capacity may decrease if the headphones 

are turned on and placed on the transmitter with the AC 
adaptor disconnected.

 

– The transmitter automatically turns off while charging 

the headphones.

 

– This system is designed to charge only the supplied 

rechargeable battery BP-HP800-11 for safety. Note that 
other types of rechargeable battery cannot be charged 
with this system.

 

– If dry batteries are installed, they cannot be charged.

 

– Do not attempt to use the supplied rechargeable battery 

BP-HP800-11 for other components. It is for use with this 
system only.

 

– Charge in an environmental temperature of between 

5 °C and 35 °C.

 

– When the battery life reduces to half, this may be the 

end of battery lifetime. The supplied rechargeable 
battery BP-HP800-11 is not commercially available. You 
can order the battery from the store where you 
purchased this system, or at your nearest Sony dealer.

 

– Do not touch the contact pins of the transmitter. If the 

contact pins become dirty, charging may not be 
possible.

 

– Charging may not be completed if the transmitter’s 

contact pins and headphones’ contact points are dusty. 
Wipe them with a cotton bud, etc.

Using the headphones 

with separately-sold dry 

batteries

Commercially available (LR03 (size AAA)) dry batteries can 
also be used to power the headphones. Install two 
batteries in the same manner as described in step 1 of 
“How to use.”
If you attempt to charge the headphones with dry 
batteries installed, the CHARGE/RED indicator lights up 
red for 15 seconds, then turns off. The battery charge 
function is not activated.

Battery life

Battery

Approx. usage time

1)

Sony alkaline battery LR03 
(size AAA)

24 hours

2)

1)  at 1 kHz, 0.1 mW + 0.1 mW output
2)  Time may vary, depending on the temperature or 

conditions of use.

Note

Do not carry a dry battery together with coins or other 
metallic objects. It can generate heat if the positive and 
negative terminals of the battery are accidentally come 
into contact with metallic objects.

Tips for connection

 

– When you connect the stereo mini cable (stereo mini 

jack) directly to an earphone jack (monaural mini jack), 
the audio signal may not be output through the right 
channel.

Tips for volume setting

 

– If you connect the transmitter to the headphone jack of 

the A/V component, set the volume of the A/V 
component as high as possible but not so high that the 
audio signal becomes distorted.

 

– When watching videos, be careful not to raise the 

volume too high in quiet scenes. You may hurt your ears 
when a loud scene is played.

Tips for sound effect

Slide the switch to select the desired sound effect, OFF or 
VOICE.

Position of 
switch

Sound effect and suitable sound 
source

OFF

Normal playback of the 
headphones.

VOICE

Produces a clearer announcer’s 
voice.

Notes

 

– The volume of the headphones may vary, depending on 

the input signal and the setting of the EFFECT switch.

 

– The sound effect may not be obtained depending on 

the input sound sources.

Tips for better reception

Receiving performance

This system utilizes very high frequency signals in the 900 
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 many steel file cabinets, etc.

 

– An area with many electrical appliances capable of 

generating electromagnetic fields

 

– The transmitter is placed on a metal instrument.

 

– An 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.

Effective area of the transmitter

The optimum distance is up to approximately 45 m (150 ft) 
without the system picking up some interference. 
However, the distance may vary depending on the 
surroundings and environment.

 

– If the system picks up some noise within the above 

mentioned distance, reduce the distance between the 
transmitter and the headphones, or select another 
channel.

 

– When you use the headphones inside the effective area 

of the transmitter, the transmitter can be placed in any 
direction from the listener.

 

– Even within the signal reception area, there are some 

spots (dead spots) where the RF signal cannot be 
received. This characteristic is inherent to RF signals, and 
does not indicate malfunction. By slightly moving the 
transmitter, location of the dead spot can be changed.

Replacing the earpads

The earpads are replaceable. If the earpads become dirty 
or worn out, replace them as illustrated below. The 
earpads are not commercially available. You can order 
replacements from the store where you purchased this 
system, or at your nearest Sony dealer.

Remove the old earpad by pulling it out of the groove 
on the housing.

Fit the new earpad in the groove of the housing.
Make sure the earpad is set to the vertical position.

Precautions

 

– When this system is not to be used for a long period of 

time, disconnect the AC adaptor from the AC outlet 
holding the plug, and remove the battery from the 
headphones to avoid damage caused by battery 
leakage and subsequent corrosion.

 

– Do not leave this system in a location subject to direct 

sunlight, heat or moisture.

 

– You may hear some noise when you disconnect the AC 

adaptor from the transmitter before taking off the 
headphones.

 

– Avoid exposure to temperature extremes, direct sunlight, 

moisture, sand, dust or mechanical shock.

 

– Please note that water does not splash, this product is 

not waterproof specification.

Notes on headphones

To reduce the risk of hearing damage

Avoid using headphones at high volume. Hearing experts 
advise against continuous, loud and extended play. If you 
experience a ringing in your ears, lower the volume or 
discontinue use.

Caring for others

Keep the volume at a moderate level. This will allow you 
to hear outside sounds and to be considerate to the 
people around you.

Note on static electricity

Static electricity accumulated in the body may cause mild 
tingling in your ears. To minimise the effect, wear clothes 
made from natural materials.

If you have any questions or problems concerning the 
system that are not covered in this manual, please consult 
your nearest Sony dealer.

Be sure to bring the headphones and the transmitter to 
the Sony dealer when requiring repair work.

Troubleshooting

If you run into any problems using this system, use the 
following checklist. Should any problem persist, consult 
your nearest Sony dealer.

No sound/Low sound

 

– Check the connection of the A/V component or the AC 

adaptor.

 

– Check that the A/V component is turned on.

 

– If you connect the transmitter to an A/V component 

using the headphone jack, raise the volume level on the 
connected A/V component within the range where the 
sound is not distorted.

 

– Change the radio frequency with the CHANNEL selector 

on the transmitter, then change the radio frequency to 
that of the transmitter with the AUTO TUNING button on 
the headphones.

 

– Use the headphones near the transmitter, or change the 

position of the transmitter.

If you cannot receive a clear audio signal

First change the radio frequency with the CHANNEL selector switch on the 
transmitter, then briefly press the AUTO TUNING button on the headphones.

Noise Reduction process

The transmitter compresses the audio signal and converts it to RF signal. The 
headphones convert the received RF signal to an audio signal and decompresses it. This 
process reduces noise picked up during transmission.

input signal

output signal

decompression

compression

d

ynamic rang

e

Transmitter unit

Headphones unit

RF transmission

noise level (low)

1

5

2

3 4

 

The transmitter compresses the audio signals dynamic range, then converts it to RF 
signal.

 

Noise may occur due to long distance transmission, etc.

 

The headphones convert the RF signal to an audio signal.

 

Noise may occur during conversion.

 

Decompression of the audio signals dynamic range reduces the noise level and 
improves the S/N (signal-to-noise) ratio.

 

– Charge the supplied rechargeable battery, or replace dry 

batteries with new ones. If the POWER indicator is still 
off after charging, take the headphones to a Sony dealer.

 

– Raise the headphone volume.

The sound cuts off

 

– The transmitter turns off if no signal  or low signal is 

input for 4 minutes. If you connect the transmitter to an 
A/V component using the headphone jack, raise the 
volume level on the connected A/V component within 
the range where the sound is not distorted.

Distorted or intermittent sound  

(sometimes with noise)

 

– Use the headphones near the transmitter, or change the 

position of the transmitter.

 

– Do not place the transmitter on a metallic table.

 

– If you connect the transmitter to an A/V component 

using the headphone jack, lower the volume level on the 
connected A/V component within the range where the 
sound is not distorted.

 

– Change the radio frequency with the CHANNEL selector 

on the transmitter, then change the radio frequency to 
that of the transmitter with the AUTO TUNING button on 
the headphones.

 

– Charge the supplied rechargeable battery, or replace dry 

batteries with new ones. If the POWER indicator is still 
off after charging, take the headphones to a Sony dealer.

Loud background noise

 

– If you connect the transmitter to an A/V component 

using the headphone jack, raise the volume level on the 
connected A/V component within the range where the 
sound is not distorted.

 

– Charge the supplied rechargeable battery, or replace dry 

batteries with new ones. If the POWER indicator is still 
off after charging, take the headphones to a Sony dealer.

 

– Do not place the transmitter on a metallic table.

 

– Use the headphones near the transmitter.

The POWER/GREEN indicator flashes 

green

 

– No signal or low signal is input. Start playback of the A/V 

component, or raise the volume of the connected A/V 
component within the range where the sound is not 
distorted, otherwise the transmitter will turn off. If no 
signal or low signal is input for about 4 minutes, the 
transmitter turns off automatically.

Battery cannot be charged/ 

CHARGE/RED indicator flashes red, 

or does not light up red

 

– Check that the right/left of the headphones and 

transmitter correspond, and put the headphones on the 
transmitter correctly.

 

– Install the supplied rechargeable nickel-metal hydride 

battery. Dry batteries and rechargeable batteries other 
than the supplied cannot be charged.

 

– If the CHARGE/RED indicator does not light up red even 

though you put the headphones on the transmitter and 
wait for a while, it may be the end of battery lifetime. 
You can order the supplied rechargeable battery 
BP-HP800-11 from the store where you purchased this 
system, or at your nearest Sony dealer.

 

– Charging may not be completed if the transmitter’s 

contact pin and headphones’ contact point are dusty. 
Wipe them with a cotton bud, etc.

Short usage time (the supplied 

rechargeable battery)

 

– Clean the + and - terminal of the supplied rechargeable 

battery and the charging terminal of transmitter/
headphone with a dry cloth.

 

– Recharge the supplied rechargeable battery after the 

fully discharged.

Specifications

RF stereo transmitter (TMR-RF995R)

Modulation 

FM stereo

Carrier frequency 915.5 MHz, 916.0 MHz, 916.5 MHz
Channel 

Ch1, Ch2, Ch3

Transmission distance
 

Approx. 45 m of longest

Audio inputs 

Stereo mini jack

Power requirements 

DC 12 V (from the supplied AC adaptor)

Dimensions 

Approx. 130 mm × 273 mm × 160 mm  
(w/h/d)

Mass 

Approx. 265 g

Rated power consumption
 

2.0 W

Operating temperature
 

5°C to 35°C

Wireless stereo headphones (MDR-
RF995R)

Frequency response
 

10 Hz – 22,000 Hz

Power source 

Supplied rechargeable nickel-metal 
hydride battery BP-HP800-11, or 
commercially available (LR03 (size AAA)) 
dry batteries

Mass 

Approx. 275 g

Operating temperature
 

5°C to 35°C

Included items

RF stereo transmitter TMR-RF995R
Wireless stereo headphones MDR-RF995R
AC adaptor (12 V) (1)
Stereo mini cable (stereo mini plug), 1.5 m (1)
Rechargeable nickel-metal hydride battery BP-HP800-11 
(1)
Card warranty (1)
Operating Instructions (this manual) (1)
Design and specifications are subject to change without 
notice.

Содержание MDR-RF995RK

Страница 1: ...Wireless Stereo Headphone System 2018 Sony Corporation Printed in Vietnam 4 734 847 11 1 MDR RF995RK Operating Instructions ...

Страница 2: ... you to listen to a program free the restriction of a cable Up to 45 meters reception range High fidelity sound reproduction New mode VOICE for clear hearing of personal voice range Noise reduction system to reproduce a clear sound with minimum transmission noise Comfortable fit Smooth and Comfortable Earpads Long playback time maximum 20 hours Easy recharging function with secure charging mechani...

Страница 3: ...itter restarts after receiving an audio signal again The transmitter may also turn off if low signal is input for about 4 minutes In this case raise the volume of the connected A V component within the range where the sound is not distorted then lower the volume of the headphones If signal noise is output from the connected A component the transmitter may not turn off even when no audio signal is ...

Страница 4: ... generate h negative terminals of the battery into contact with metallic objects Tips for conne When you connect the stereo m jack directly to an earphone jac the audio signal may not be out channel If you cannot receive a clear audio signal First change the radio frequency with the CHANNEL selector switch on the transmitter then briefly press the AUTO TUNING button on the headphones Noise Reducti...

Страница 5: ...distorted or noisy Notes Insert the AC adaptor plug firmly Be sure to use the supplied AC adaptor Using AC adaptors with different plug polarity or other characteristics can cause product failure Unified polarity plug The battery capacity may decrease if the headphones are turned on and placed on the transmitter with the AC adaptor disconnected The transmitter automatically turns off while chargin...

Страница 6: ...ng on the input signal and the setting of the EFFECT switch The sound effect may not be obtained depending on the input sound sources Tips for better reception Receiving performance This system utilizes very high frequency signals in the 900 MHz band so the receiving performance may deteriorate due to the surroundings The following examples illustrate conditions that may reduce the reception range...

Страница 7: ...oof specification Notes on headphones To reduce the risk of hearing damage Avoid using headphones at high volume Hearing experts advise against continuous loud and extended play If you experience a ringing in your ears lower the volume or discontinue use Caring for others Keep the volume at a moderate level This will allow you to hear outside sounds and to be considerate to the people around you N...

Страница 8: ... signal or low signal is input for about 4 minutes the transmitter turns off automatically Battery cannot be charged CHARGE RED indicator flashes red or does not light up red Check that the right left of the headphones and transmitter correspond and put the headphones on the transmitter correctly Install the supplied rechargeable nickel metal hydride battery Dry batteries and rechargeable batterie...

Страница 9: ...s or batteries several times to obtain maximum performance Dispose of properly 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 a bookcase or built in cabinet The AC Adaptor is not disconnected from the mains as long as it is connected to the AC outlet even if the unit itself has been turned off A...

Страница 10: ...ce to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving ante...

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