Troubleshooting, What is bluetooth wireless technology, Specifications – Sony SRS-BTD70 User Manual
Page 2: Pairing is not possible
Troubleshooting
No sound / Sound from only one speaker /
Low sound level
Check that both this system and
the connected device are turned
on.
If you are connecting a personal
computer to the system, make
sure the audio output setting of
the computer is set for a Bluetooth
device.
Turn up the volume of the system
and the connected device.
Pair this system and the Bluetooth
device again.
Check that the connected device
is being played back.
If the connected device is monaural,
sound will only be output from the
left speaker.
Check that both plugs of the
connecting cord (supplied) are
firmly inserted into the system
and the connected device.
Distorted sound /
Humming or noise in the system output
Turn down the volume of the
connected device.
Keep the system away from a TV.
If the connected device has an
equalizer function, set it to off.
If the POWER indicator (green) is
flashing, replace all the batteries
with new ones.
Keep the system away from a
microwave oven, wireless LAN,
etc.
If you connect a device with a built-
in radio or tuner to this system,
broadcasts may not be received, or
sensitivity may be reduced. Locate
the system farther away from the
device and check that you can listen
to the broadcasts satisfactorily.
Bring this system and the
Bluetooth device closer together.
Remove any obstacle between
this system and the Bluetooth
device.
Pairing is not possible
Bring this system and the
Bluetooth device to within 1 m
(3 ft) of each other.
Make sure pairing mode of the
system is activated.
What is Bluetooth wireless
technology?
Bluetooth wireless technology is a short-range wireless
technology that enables wireless data communication between
digital devices, such as a computer and digital camera. Bluetooth
wireless technology operates within a range of about 10 m
(about 30 ft).
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 3.0
Compatible Bluetooth Profiles:
A2DP (Advanced Audio Distribution Profile): Transmitting or
receiving audio content of high-quality.
AVRCP (Audio Video Remote Control Profile): Controlling the
sound volume.
Maximum communication range
Use Bluetooth devices within 10 m (about 30 ft) (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 (about 30 ft) away from the
wireless LAN device.
If the system is used within 10 m (about 30 ft) 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.
where inflammable gas is present, in a hospital, train,
airplane, or a gas station
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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Specifications
Speaker section
Speaker system
Satellite speaker: 28 mm (1
1
/
8
in.)
Subwoofer: 40 mm (1
5
/
8
in.)
Enclosure type
Satellite speaker: closed type
Subwoofer: ASW (Acoustic Super Woofer)
type
Amplifier section
Reference output power
Satellite speaker: 1.3 W + 1.3 W (10 % T.H.D.,
1 kHz, 8 Ω)
Subwoofer: 2.4 W (10 % T.H.D., 100 Hz, 3 Ω)
Input
Stereo mini jack × 1
Bluetooth
Communication System
Bluetooth Specification version 3.0
Output
Bluetooth Specification Power Class 2
Maximum communication range
Line of sight approx. 10 m (about 30 ft)*
1
Frequency band 2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Modulation method
FHSS
Compatible Bluetooth Profiles*
2
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
VOLUME UP/DOWN
Supported Codec*
3
SBC*
4
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency
44.1 kHz)
*
1
The actual range will vary depending on factors such as
obstacles between devices, magnetic fields around a
microwave oven, static electricity, reception sensitivity, aerial’s
performance, operating system, software application, etc.
*
2
Bluetooth standard profiles indicate the purpose of Bluetooth
communication between devices.
*
3
Codec: Audio signal compression and conversion format
*
4
Subband Codec
General
Power
DC 5.2 V (when using the supplied AC
adaptor connected to AC 100 V - 240 V power
supply)
Three LR6 (size AA) batteries
Rated power consumption
1.8 W (when using the supplied AC adaptor)
Approx. 0.2 W (in standby mode when using
the supplied AC adaptor)
Battery life (when using the Bluetooth connection)
Sony alkaline battery LR6 (size AA):
approx. 13 hours*
5
Sony nickel metal hydride rechargeable
battery NHAAB2K (size AA):
approx. 15 hours*
5
Dimensions
Approximately 206 mm × 63 mm × 77 mm
(8
1
/
8
in. × 1
1
/
2
in. × 3
1
/
8
in.) (w/h/d)
Mass
Approximately 620 g (1 lb. 6 oz.) including
batteries
Supplied accessories
AC adaptor (AC-E5212) (1)
Connecting cord (1)
Carrying pouch (1)
Operating Instructions (this document) (1)
*
5
Time may vary, depending on the temperature or conditions
of use.
Design and specifications are subject to change without notice.