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Wireless Speaker System
Reference Guide
©2012 Sony Corporation
Printed in China
SRS-BTV25
If the TV picture or monitor display is
magnetically distorted
Although this system is magnetically shielded, there
may be cases that the picture on some TV sets/personal
English
computer sets may become magnetically distorted. In
such a case, turn off the power of the TV set/personal
computer set once, and after 15 to 30 minutes turn it on
again.
For the personal computer set, take the appropriate
Before operating the system, please read this guide thoroughly
measures such as data storage before turning it off.
and retain it for future reference.
When there seems to be no improvement, locate the
WARNING
system further away from the TV set/personal computer
set.
Furthermore, be sure not to place objects in which
To reduce the risk of fire or electric shock, do not expose
magnets are attached or used near the TV set/personal
this apparatus to rain or moisture.
computer set, such as audio racks, TV stands, toys etc.
These may cause magnetic distortion to the picture due
To reduce the risk of electrical shock, do not open the
to their interaction with the system.
cabinet. Refer servicing to qualified personnel only.
Others
Do not install the appliance in a confined space, such as a
If you have any questions or problems concerning this
bookcase or built-in cabinet.
unit that are not covered in this manual, please consult
To reduce the risk of fire, do not cover the ventilation
your nearest Sony dealer.
opening of the apparatus with newspapers, tablecloths,
Should any problem persist, consult your nearest Sony
curtains, etc. Do not place the naked flame sources such as
dealer.
lighted candles on the apparatus.
To reduce the risk of fire or electric shock, do not expose
Troubleshooting
this apparatus to dripping or splashing, and do not place
objects filled with liquids, such as vases, on the apparatus.
Do not install the AC adaptor in a confined space, such as
If you run into any problems using this system, use the
a bookcase or built-in cabinet.
following checklist. Should any problem persist, consult
your nearest Sony dealer.
As the main plug is used to disconnect the unit from the
mains, connect the unit to an easily accessible AC outlet.
Common Problems
Should you notice an abnormality in the unit, disconnect
the main plug from AC outlet immediately.
No sound
The system is not disconnected from the mains as long as
Check that both this system and the source device are
it is connected to the AC outlet, even if the system itself
turned on.
has been turned off.
Turn up the volume of the system.
The nameplate is located on the bottom exterior of the
Turn up the volume of the source device as high as
system.
possible to the extent that sound is not distorted. For
details on volume adjustment, refer to the operating
On Copyrights and Licenses
instructions supplied with the device.
®
The Bluetooth
word mark and logos are owned by the
Make sure all the connections have been correctly made.
Bluetooth SIG, Inc. and any use of such marks by Sony
Make sure the source device is playing.
Corporation is under license.
Low sound level
Other trademarks and trade names are those of their
Turn up the volume of the source device as high as
respective owners.
possible to the extent that sound is not distorted. For
details on volume adjustment, refer to the operating
instructions supplied with the device.
Precautions
Turn up the volume of the system.
Distorted sound
Notes when using with a mobile phone
Turn down the volume of the source device to the point
You cannot use this unit to talk over the telephone, even
where the sound is no longer distorted. For details on
if the Bluetooth connection between this unit and a
volume adjustment, refer to the operating instructions
mobile phone is made.
supplied with the device.
For details on operation of your mobile phone when
If the source device has a bass boosts function, turn it
receiving a telephone call while transmitting the sound
off.
using the Bluetooth connection, refer to the operating
Turn down the volume of the system.
instructions supplied with the mobile phone.
There is hum or noise in the speaker output.
On safety
Make sure all the connections have been correctly made.
The nameplate indicating Sony trademark, model number
Make sure none of the audio devices are positioned too
and electrical rating is located on the bottom exterior of
close to the TV set.
this unit.
The brightness of the POWER indicator (green) is
Before operating the system, be sure that the operating
unstable.
voltage of the system is identical with that of your local
The brightness of the POWER indicator (green) may
power supply.
become unstable when the volume is turned up. This is
not malfunction.
Where purchased
Operating voltage
When using the Bluetooth connection
All countries/regions
100 – 240 V AC, 50/60 Hz
No sound
Use only the supplied AC adaptor.
Ensure that this system is not too far from the Bluetooth
stereo audio source device, and that this system is not
On placement
receiving interference from a wireless LAN, another 2.4
Do not set the speaker in an inclined position.
Do not leave the system in a location near heat sources,
GHz wireless device, or a microwave oven.
Check that the Bluetooth connection is made properly
or in a place subject to direct sunlight, excessive dust,
between this system and the Bluetooth stereo audio
moisture, rain or mechanical shock.
source device.
On operation
Pair this system and the Bluetooth stereo audio source
Do not insert any small objects, etc., into the jacks or
device again.
ventilation hole on the rear of the system. The system
If you are pairing this system and a personal computer,
may short out or malfunction.
make sure the audio output setting of the computer is
Do not open the cabinet. Refer servicing to qualified
set for a Bluetooth device.
personnel only.
Sound skips or the communication is interrupted.
Should any solid object or liquid fall into the system,
have the system checked by qualified personnel before
If a device that generates electromagnetic radiation,
such as a wireless LAN, other Bluetooth device(s), or a
operating it any further.
microwave oven is nearby, move away from such
Although this system is magnetically shielded, do not
sources.
leave recorded tapes, watches, personal credit cards, or
Remove any obstacle between this system and other
floppy disks with magnetic coding in front of the system
for an extended period of time.
Bluetooth device, or move away from the obstacle.
Locate this system and other Bluetooth device(s) as near
On cleaning
as possible to each other.
Do not use alcohol, benzine, or thinner to clean the
Re-position this system.
cabinet.
Re-position the other Bluetooth device.
Pairing is not possible.
Modulation method
4-298-825-91(1)
Bring this system and the Bluetooth device closer
together.
Compatible Bluetooth Profiles*
Make sure pairing mode is activated.
USB charging problem
Supported Codec*
The device cannot be charged.
Make sure the AC adaptor is connected to a wall outlet
Transmission range (A2DP)
(mains).
Refer to the operating instructions supplied with the
device for the charging procedure.
*1 The actual range will vary depending on factors such
Specifications
*2 Bluetooth standard profiles indicate the purpose of
Speaker section
*3 Codec: Audio signal compression and conversion
Speaker system
Woofer: 56 mm, magnetically shielded
*4 Subband Codec
Tweeter: 20 mm
Enclosure type
USB
Bass reflex
USB jack
Impedance
Woofer: 6 Ω
Tweeter: 6 Ω
General
Amplifier section
Power
Reference output power
Rated power consumption
13 W (10% T.H.D., 1 kHz, 6 Ω)
Input
Stereo mini jack × 1
Operating temperature
Input impedance
4.7 kΩ (at 1 kHz)
Power voltage
Bluetooth
Dimensions (w/h/d)
Communication System
Bluetooth Specification version 2.1 + EDR
Mass
(Enhanced Data Rate)
Supplied accessories
Output
Bluetooth Specification Power Class 2
Maximum communication range
Line of sight approx. 10 m*
1
Frequency band
2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Design and specifications are subject to change without
notice.
Parts and controls
Top of the system
BOOST
BLUETOOTH
button
PAIRING button
/ button
BOOST indicator
POWER indicator
Rear of the system
The VOL + button has a
tactile dot.
AUDIO IN
DC IN 13V
jack
jack
Operations
Features
This product is a wireless speaker system that uses
Bluetooth wireless technology.
Enjoy music wirelessly from Bluetooth stereo enabled
music players, mobile phones and PC's.*
Function of parts
Bluetooth Version 2.1 + EDR (Enhanced Data Rate) for
higher quality audio with less interference.
/ button
Powerful sound with 13 W amplifiers and MegaBass.
Turns the system on/off. The POWER indicator (green)
Includes one analogue input for direct connection from
lights up when the system is turned on.
a music player or other audio device.
Magnetically-shielded design for use near your TV or
VOL (volume) −/+ button
monitor.
Adjusts the volume.
USB-charge compliant devices, e.g., mobile phones,
The POWER indicator (green) flashes three times when
"WALKMAN, " etc., can be charged via the USB jack of
the volume is set to minimum or maximum.
this product.
BOOST button
Enjoying listening to sound wirelessly by
Press to obtain a heavy bass sound effect. The BOOST
Bluetooth wireless technology
indicator (amber) lights up. To disable the effect, press the
You can enjoy listening to sound wirelessly by connecting
button again (the indicator turns off).
Bluetooth supported devices (such as a mobile phone,
The default setting of the function is on. Turn it off if
digital music player, digital music player connected to a
desired.
Bluetooth transmitter, or personal computer)* to the
system. The system receives stereo audio signals from the
BLUETOOTH PAIRING button
source device.
Press to use the Bluetooth connection or pair with a
Bluetooth device.
Depending on the communication status, the
(BLUETOOTH) indicator (blue) lights up or flashes. For
details about the flashing patterns of the
(BLUETOOTH) indicator (blue), see "Indications of the
Bluetooth function" in these operating instructions.
AUDIO IN button
Press to receive audio signal from the AUDIO IN jack. The
AUDIO IN indicator (amber) lights up.
* Bluetooth devices to be connected with the system are
AUDIO IN jack
required to support A2DP (Advanced Audio
Connects to the headphone jack of a computer, portable
Distribution Profile).
audio device, etc.
DC IN 13V jack
Connects the supplied AC adaptor.
USB jack
Charges a device connected to the system by the USB
cable. This jack is used for charging the connected device
only. Audio signal, etc., cannot be sent via this jack.
Power source
FHSS
2
Note on the power management system
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.3 (Audio Video Remote Control
After playback has finished, if no operation is performed
Profile)
for 20 minutes, the system will automatically turn off.
3
Firmly connect the supplied AC adaptor to the DC IN 13V
SBC*
4
jack on the back of the system, and plug the AC power
cord (mains lead) into a wall outlet (mains).
20 Hz - 20,000 Hz (Sampling frequency 44.1
kHz)
Rear of the system
as obstacles between devices, magnetic fields around a
microwave oven, static electricity, reception sensitivity,
to wall outlet
aerial's performance, operating system, software
(mains)
application, etc.
Bluetooth communication between devices.
format
to DC IN 13V jack
Type A (for charging the battery of a connected
AC adaptor (supplied)
device) (5 V, 500 mA)
Notes on the AC adaptor and AC power cord
(mains lead)
DC 13 V
When connecting or disconnecting the AC power cord
(mains lead), turn off the system beforehand.
12 W
Otherwise, it may cause malfunction.
Use only the supplied AC adaptor. To avoid damaging
5 ºC - 35 ºC
the system, do not use any other AC adaptor.
100 V - 240 V AC
Approximately 145 mm × 145 mm × 145 mm
Approximately 500 g
Polarity of the plug
Plug the AC power cord (mains lead) into a nearby wall
AC adaptor (AC-E1320D1) (1)
outlet (mains). In the case of a problem, unplug it from
AC power cord (1)
the wall outlet (mains) immediately.
Reference Guide (this document) (1)
Do not place the AC adaptor on a bookshelf or in a
confined place, such as a cabinet.
To avoid fire or electric shock, do not use the AC
adaptor in a place near liquid or subject to moisture.
Furthermore, do not place liquid-filled vessels, such as
vases, etc., on the AC adaptor.
The supplied AC adaptor and AC power cord (mains
lead) are only for this system. Do not use them with any
other device.
In system protect mode, all indicators flash, and the
system buttons will not work. To exit this mode,
disconnect the AC power cord (mains lead) from the
AUDIO IN
wall outlet (mains), then connect again. Make sure all
button
indicators are off, and turn on the system. If the system
detects a problem (indicators flashing repeatedly, no
sound from connected device, etc.), there may be a
malfunction. In this case, immediately disconnect the
AC power cord (mains lead) and seek repair.
To turn the system on/off
Press /.
To charge the device
VOL −/+ button
Connect the AC adaptor to a wall outlet (mains), and
connect the device to the system using the USB cable
supplied with the device.
AUDIO IN indicator
Charging begins automatically, whether the system is
(BLUETOOTH) indicator
turned on or off. The charging status is displayed on the
device. For details, refer to the operating instructions
supplied with the device.
Side of the system
Side of the system
to USB jack
USB jack*
* For charging only
USB cable supplied with the device
USB rechargeable
devices such as mobile
phone, "WALKMAN, " etc.
Using the Bluetooth
Connection
By using the Bluetooth connection, you can listen to the
sound from a Bluetooth device with the system wirelessly.
Note
For details on how to operate the device to be
connected, refer to the operating instructions supplied
with the device.
On pairing
Bluetooth devices need to be "paired" with each other
beforehand.
Once Bluetooth devices are paired, there is no need for
pairing again, except in the following cases:
Pairing information is deleted after repair, etc.
The system is paired with 10 or more devices.
Bluetooth device.
The system can be paired with up to 9 Bluetooth stereo
audio source devices. If a new device is paired after 9
devices have been paired, the device whose latest
connection time is the oldest among the 9 paired
devices is replaced by the new one.
The system is initialised.
All pairing information is deleted.
Pairing with a source device
Indications of the Bluetooth
Check the following before operating the system.
function
The system is connected to a power source.
The operating instructions supplied with the device are
Status
kept at hand.
1
Press the / button to turn on the system.
The POWER indicator (green) lights up.
Pairing with a device
2
Press and hold the BLUETOOTH PAIRING
Searching for a device
button for any more than 2 seconds.
Connecting to a device
When the
(BLUETOOTH) indicator (blue) starts
flashing quickly, release the button. The system enters
Activating the Bluetooth
pairing mode.
standby function
Note
Deactivating the Bluetooth
Pairing mode is cancelled and the system is turned
off after about 5 minutes. If the pairing mode is
standby function
cancelled while performing this procedure, start
over from step 2.
Receiving audio signal from
3
the AUDIO IN jack.
Perform the pairing procedure on the
Bluetooth device to detect the system.
* Even when the Bluetooth standby function is activated,
the indicator will be off if there is no pairing
A list of detected devices appears on the display of the
information.
Bluetooth stereo audio source device.
This system is displayed as "SRS-BTV25. "
To use the Bluetooth standby
If "SRS-BTV25" is not displayed, repeat from step 2.
Tip
function
If pairing information has not been memorised, the
By using the Bluetooth standby function, you can make the
system enters pairing mode automatically when the
system turn off temporarily and wait for the Bluetooth
BLUETOOTH PAIRING button is pressed. There is
connection.
no need to hold the BLUETOOTH PAIRING
1
Hold the BLUETOOTH PAIRING button
button for any more than 2 seconds.
and press the / button for any more than 2
Notes
seconds while the system is turned on.
When pairing, be sure to place both the Bluetooth
devices within 1 m of each other.
The system turns off and the
(BLUETOOTH)
Some devices cannot display a list of detected
indicator (blue) flashes.
devices.
If you start the Bluetooth connection, the system turns
4
Select "SRS-BTV25" shown in the display of
on automatically and starts communication.
the Bluetooth device.
Tip
When waiting for the Bluetooth connection, you can
5
If Passcode* input is required on the display
reduce power consumption by using the Bluetooth
of the Bluetooth device, input "0000. "
standby function, rather than leaving the system turned
on.
* Passcode may be called "Passkey, " "PIN code, " "PIN
number, " or "Password. "
Note
6
To disable the Bluetooth standby function, perform step
Start the Bluetooth connection from the
1 again. (The
(BLUETOOTH) indicator (blue) and
Bluetooth device.
the system will turn off.)
The system memorises the device as the last connected
device. Some Bluetooth devices may connect with the
system automatically when pairing is complete.
Using by a wired connection
Tip
To pair with other Bluetooth devices, repeat steps 2
You can listen to the sound from a device connected to the
to 5 for each device.
AUDIO IN jack.
Note
Note
Passcode of the system is fixed as "0000. " The system
For details on how to operate the device to be
cannot be paired with a Bluetooth device whose
connected, refer to the operating instructions supplied
Passcode is not "0000. "
with the device.
Listening to the system
Hooking up the system
The system supports SCMS-T content protection. You can
enjoy music, etc., from a device such as a mobile phone or
portable TV that supports SCMS-T content protection.
Rear of the system
Check the following before operating the system.
The Bluetooth device's Bluetooth function is on.
Pairing of the system and the Bluetooth device is
complete.
1
Press the / button to turn on the system.
Portable audio device,
The POWER indicator (green) lights up.
computer, etc.
2
Press the BLUETOOTH PAIRING button.
Note
to AUDIO IN jack
If the
(BLUETOOTH) indicator (blue) is
activated, this step is not required.
3
Start the Bluetooth connection from the
Bluetooth device.
4
Start playback on the Bluetooth device.
RK-G136 connecting
Note
cord (optional)
If the source device has a bass boost function or
1
Connect the device to the system.
equaliser function, turn them off. If these functions
are on, sound may be distorted.
To connect to a stereo phone-type headphone
5
Adjust the volume.
jack
Use the optional connecting cord RK-G136 and plug
Set the volume of the Bluetooth device to a moderate
adaptor PC-234S, or optional connecting cords RK-G136
level, and press the VOL –/+ buttons on the system.
and RK-G138.*
Tips
* The above optional accessories may not be available in
You can adjust the volume of the system via a
some areas.
Bluetooth device supporting AVRCP (Audio/Visual
Remote Control Profile) VOLUME UP/DOWN. For
Listening to the system
details, refer to the operating instructions supplied
with the device.
1
Press the / button to turn on the system.
The volume of the system may not be controllable,
The POWER indicator (green) lights up.
depending on the device.
2
Press the AUDIO IN button.
Note
The POWER indicator (green) flashes three times
Note
when the volume is set to minimum or maximum.
If the AUDIO IN indicator (amber) is activated, this
step is not required.
Notes
3
In the following cases, you need to make the Bluetooth
Start playback on the source device.
connection again.
4
– The power of the system does not turn on.
Adjust the volume.
– The power of the Bluetooth device does not turn on,
Set the volume of the source device to a moderate
or the Bluetooth function is off.
level, and press the VOL –/+ buttons on the system.
– The Bluetooth connection is not made.
Note
When the sound of a Bluetooth device is being
The POWER indicator (green) flashes three times
reproduced using the Bluetooth connection (when both
when the volume is set to minimum or maximum.
the POWER indicator (green) and
(BLUETOOTH)
5
Press the / button to turn off the system
indicator (blue) light up), the sound from a device
connected to the AUDIO IN jack cannot be heard. Press
after use.
the AUDIO IN button to listen to the sound from a
The POWER indicator (green) turns off.
device connected to the AUDIO IN jack.
Notes
If more than one device paired with the system is being
If the speaker is connected to a device with a built-in
played back, sound will be heard from just one of those
radio or tuner, radio stations may not be received, or
devices.
sensitivity may be reduced significantly.
To finish listening
If the source device has a bass boost function or
Terminate the Bluetooth connection by any of the
equaliser function, turn them off. If these functions are
operations below.
on, sound may be distorted.
Operate the Bluetooth device to terminate the
To switch the connection to the Bluetooth connection,
connection. For details, refer to the operating
press the BLUETOOTH PAIRING button.
instructions supplied with the device.
Turn off the Bluetooth device.
Turn off the system.
Initialising the System
You can reset the system to its default and delete all
pairing information.
(BLUETOOTH)
1
Hold the BOOST button and press the
indicator (blue)
BLUETOOTH PAIRING button for any more
Flashes quickly
than 5 seconds while the system is turned on.
The POWER indicator (green) flashes for 2 seconds.
Flashes
Lights up
Flashes slowly*
What is Bluetooth wireless
technology?
Off
Bluetooth wireless technology is a short-range wireless
technology that enables wireless data communication
between digital devices, such as a computer and digital
Off
camera. Bluetooth wireless technology operates within a
range of about 10 metres.
Connecting two devices as necessary is common, but
some devices can be connected to multiple devices at the
same time.
You do not need to use a cable for connection, nor is it
necessary for the devices to face one another, such is the
case with infrared technology. For example, you can use
such a device in a bag or pocket.
Bluetooth standard is an international standard supported
by thousands of companies all over the world, and
employed by various companies worldwide.
Communication System and Compatible
Bluetooth Profiles of the system
Profile is standardisation of the function for each
Bluetooth device specification. The system supports the
following Bluetooth version and profiles:
Communication System:
Bluetooth Specification version 2.1 + EDR*
Compatible Bluetooth Profiles:
– A2DP (Advanced Audio Distribution Profile):
Transmitting or receiving audio content of high-
quality.
– AVRCP 1.3 (Audio Video Remote Control Profile):
Controlling the sound volume.
* Enhanced Data Rate
Maximum communication range
Use Bluetooth devices within 10 m (line of sight) of the
system.
Maximum communication range may shorten under the
following conditions.
– There is an obstacle such as a person, metal, or wall
between the system and Bluetooth device.
– A wireless LAN device is in use near the system.
– A microwave oven is in use near the system.
– A device that generates electromagnetic radiation is
in use near the system.
Interference from other devices
Because Bluetooth devices and wireless LAN
(IEEE802.11b/g) use the same frequency, microwave
interference may occur and resulting in communication
speed deterioration, noise, or invalid connection if the
system is used near a wireless LAN device. In such a case,
perform the following.
– Use the system at least 10 m away from the wireless
LAN device.
– If the system is used within 10 m of a wireless LAN
device, turn off the wireless LAN device.
Interference to other devices
Microwaves emitting from a Bluetooth device may affect
the operation of electronic medical devices. Turn off the
system and other Bluetooth devices in the following
locations, as it may cause an accident.
To headphone
– where inflammable gas is present, in a hospital, train,
jack (stereo mini
airplane, or a gas station
jack)
– near automatic doors or a fire alarm
Notes
To be able to use the Bluetooth function, the Bluetooth
device to be connected requires the same profile as the
system's.
Note also that even if the same profile exists, devices
may vary in function depending on their specifications.
Due to the characteristic of Bluetooth wireless
technology, the sound played on the system is slightly
delayed from the sound played on the Bluetooth device
during talking on the telephone or listening to the
music.
This system supports security capabilities that comply
with the Bluetooth standard to provide a secure
connection when the Bluetooth wireless technology is
used, but security may not be enough depending on the
setting. Be careful when communicating using Bluetooth
wireless technology.
We do not take any responsibility for the leakage of
information during Bluetooth communication.
A device featuring the Bluetooth function is required to
conform to the Bluetooth standard specified by
Bluetooth SIG, and be authenticated. Even if the
connected device conforms to the above mentioned
Bluetooth standard, some devices may not be connected
or work correctly, depending on the features or
specifications of the device.
Noise or sound skips may occur depending on the
Bluetooth device connected with the system, the
communication environment or the usage environment.
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