Sony WLA-NS7 Reference guide

Help Guide
Wireless Transmitter
WLA-NS7
The following explains how to use this transmitter. Select a topic from the navigation pane.
Design and specifications are subject to change without notice.
Getting started
Parts and controls
Making connections
Connecting the transmitter and a TV
Connecting the transmitter with BLUETOOTH® headphones
Terminating the BLUETOOTH connection (After use)
Listening to TV audio
Enjoying TV audio in spatial sound through Sony brand headphones
Terminating audio output in spatial sound (After use)
Listening to TV audio through headphones
Information
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About the indicator on the transmitter
Notes on use
Precautions
About the BLUETOOTH wireless technology
Disclaimer regarding services offered by third parties
Trademarks
Troubleshooting
What can I do to solve a problem?
Sound
No sound/Sound from only one speaker component/Low sound level/Distorted sound/Humming or noise in the speaker output
BLUETOOTH connection
Unable to pair the transmitter with a BLUETOOTH device
Reset
Initializing the transmitter
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Help Guide
Wireless Transmitter
WLA-NS7
Parts and controls
Related Topic
About the indicator on the transmitter
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(BLUETOOTH) button1.
Indicator (lights in orange or blue)
The power or communication state of the transmitter is indicated by the orange or blue indicator.
2.
DIGITAL IN (optical digital audio input) port3.
DC IN port (USB Type-C®)
4.
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Help Guide
Wireless Transmitter
WLA-NS7
Connecting the transmitter and a TV
Make preparations for wireless transmission of TV audio from the transmitter to your BLUETOOTH headphones.
Connect the DIGITAL IN (optical digital audio input) port on the transmitter and the optical digital audio
output port on a TV with the supplied optical digital cable.
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Connect the DC IN port on the transmitter and the USB port on the TV with the supplied USB Type-C®
cable.
While the transmitter is powered and receiving no audio signals, the indicator on the transmitter keeps flashing in
orange.
When you pair the transmitter with a BLUETOOTH device for the first time after purchase or after you initialize the
transmitter (and all the pairing information is deleted from the transmitter), powering the transmitter automatically
puts it into pairing mode and the indicator on the transmitter starts double-flashing in blue.
Hint
If your TV is not equipped with a USB power output port, connect the transmitter to an AC outlet with a commercially
available USB AC adaptor.
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When using a BRAVIA XR™ TV:
By using a BRAVIA XR TV in combination with Sony brand headphones, you can enjoy TV audio in spatial sound. Follow
the on-screen instructions on the TV to make settings for the 3D surround functions.
For the compatible TV models and Sony brand headphones, access the following URL.
https://www.sony.net/tr_comp_tvhp
Hint
As long as the 3D surround functions remain active on the BRAVIA XR TV, you can enjoy TV audio in spatial sound just by
connecting the transmitter with Sony brand headphones from the next time on.
When using a non-BRAVIA XR TV:
Specify PCM as the digital audio output method on the TV.
When any digital audio output method other than PCM is specified on the TV, the BLUETOOTH headphones may fail to
output TV audio successfully.
Hint
Upon completion of setting the digital audio output method, the indicator on the transmitter turns from orange to blue.
Note
On non-BRAVIA XR TVs, spatial sound is not available.
While TV audio is playing in spatial sound, no audio comes out from the TV. The volume control feature of the TV remote control
is disabled as well.
Control over the volume of the headphones connected with the transmitter via a BLUETOOTH connection is not available on the
TV.
Watching a video on a non-BRAVIA XR TV while listening to its audio via the headphones connected with the transmitter may
cause unsynchronized video and audio.
Related Topic
Connecting the transmitter with BLUETOOTH® headphones
Listening to TV audio through headphones
Turn on the TV and make settings on it.
For details, refer to the operating instructions supplied with your TV.
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Enjoying TV audio in spatial sound through Sony brand headphones
Terminating audio output in spatial sound (After use)
About the indicator on the transmitter
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Help Guide
Wireless Transmitter
WLA-NS7
Connecting the transmitter with BLUETOOTH® headphones
The process to register the information of a target device required for BLUETOOTH connection is called pairing.
To use a device in combination with the transmitter via a BLUETOOTH connection, it is necessary to pair the transmitter
with devices on an individual basis.
Before proceeding, make sure of the following:
Bring BLUETOOTH headphones within a distance of 1 m (3.2 ft) from the transmitter.
Connect the transmitter to a TV or an AC outlet with the supplied USB Type-C® cable.
To avoid any sudden loud sound output from the headphones, turn down the volume of the headphones.
Bring the operating instructions supplied with the headphones at hand for reference.
Note
Control over the headphones' volume is not available on any TV. Keep this in mind when using headphones without the volume
control feature.
Hint
The above instructions are provided as an example. For details, refer to the operating instructions supplied with your
headphones.
Press and hold the (BLUETOOTH) button on the transmitter for about 5 seconds.
The indicator on the transmitter starts double flashing in blue to indicate that the transmitter is in pairing mode.
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Put your headphones into pairing mode to establish a BLUETOOTH connection with the transmitter.
When a BLUETOOTH connection is established, the indicator on the transmitter stops flashing and stays lit in blue.
If a BLUETOOTH connection is not established, repeat the procedure all over again from step .
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Note
The transmitter comes out of pairing mode in about 5 minutes and the indicator on the transmitter stops flashing and stays lit in
blue. However, when the transmitter has no pairing information, for example when you use the BLUETOOTH function of the
transmitter for the first time after purchase, the transmitter remains in pairing mode.
If the transmitter comes out of pairing mode before you complete the procedure, repeat the procedure all over again from step
.
Once the transmitter is paired with the BLUETOOTH headphones, there is no need to pair them again, except in the following
cases:
Pairing information is deleted in the course of repair work, etc.
The pairing information of the transmitter is deleted from the paired BLUETOOTH device.
The transmitter is initialized.
All the pairing information is deleted. Once the transmitter is initialized, it may fail to establish a BLUETOOTH connection with
the headphones.
Related Topic
Connecting the transmitter and a TV
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Help Guide
Wireless Transmitter
WLA-NS7
Terminating the BLUETOOTH connection (After use)
When you are finished with using the BLUETOOTH device, perform any of the following operations to terminate the
BLUETOOTH connection.
Turn off the BLUETOOTH function on the BLUETOOTH device.
For details, refer to the operating instructions supplied with the device.
Turn off the BLUETOOTH device.
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Help Guide
Wireless Transmitter
WLA-NS7
Enjoying TV audio in spatial sound through Sony brand headphones
By using a BRAVIA XR™ TV in combination with Sony brand headphones, you can enjoy TV audio in spatial sound as
well as Dolby Atmos contents.
For the compatible TV models and Sony brand headphones, access the following URL.
https://www.sony.net/tr_comp_tvhp
Hint
Control over the volume of the headphones connected with the transmitter via a BLUETOOTH connection is not available on the
TV.
As long as the 3D surround functions remain active on the BRAVIA XR TV, you can enjoy TV audio in spatial sound just by
connecting the transmitter with the headphones from the next time on.
Note
Connect the transmitter and a TV, and then make settings for the 3D surround functions on the TV.
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Establish a BLUETOOTH connection between the transmitter and the headphones.
When a BLUETOOTH connection is established, audio output is switched from the TV to the headphones.
2
Wear the headphones.
3
Adjust the volume on the headphones.
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While TV audio is playing in spatial sound, no audio comes out from the TV. The volume control feature of the TV remote control
is disabled as well.
While the headphones are connected with the transmitter, operations with the headphones, such as pausing the current playback
content or skipping to the next playback content, are not available.
Related Topic
Connecting the transmitter and a TV
Terminating audio output in spatial sound (After use)
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Help Guide
Wireless Transmitter
WLA-NS7
Terminating audio output in spatial sound (After use)
While TV audio is playing in spatial sound, no audio comes out from the TV.
To terminate audio output in spatial sound, perform any of the following operations to deactivate the 3D surround
functions.
Turn off the headphones.
Deactivate the 3D surround functions on the TV.
For details, refer to the operating instructions supplied with the TV.
Hint
When audio output in spatial sound is terminated, you hear audio coming out from the TV.
As long as the 3D surround functions remain active on the BRAVIA XR™ TV, you can enjoy TV audio in spatial sound just by
connecting the transmitter with Sony brand headphones from the next time on.
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Help Guide
Wireless Transmitter
WLA-NS7
Listening to TV audio through headphones
You can listen to TV audio through your BLUETOOTH headphones connected with the transmitter via a BLUETOOTH
connection.
Note
While the headphones are connected with the transmitter, operations with the headphones, such as pausing the current playback
content or skipping to the next playback content, are not available.
Control over the headphones' volume is not available on the TV. Keep this in mind when using headphones without the volume
control feature.
Connect the transmitter and a TV, and then specify PCM as the digital audio output method on the TV.
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Establish a BLUETOOTH connection between your BLUETOOTH headphones and the transmitter.
When a BLUETOOTH connection is established, you hear TV audio coming out both from the TV and the
headphones.
If no audio comes out, press the (BLUETOOTH) button on the transmitter briefly once.
Hint
If no audio comes out when you press the (BLUETOOTH) button, the transmitter may be connected with another
BLUETOOTH device. In such a case, terminate the BLUETOOTH connection with the connected device, and then pair the
transmitter with the headphones all over again.
2
Listen to TV audio.
Wear the headphones and adjust the volume on the headphones.
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Watching a video on a non-BRAVIA XR™ TV while listening to its audio via headphones may cause unsynchronized video and
audio.
Related Topic
Connecting the transmitter and a TV
Connecting the transmitter with BLUETOOTH® headphones
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Help Guide
Wireless Transmitter
WLA-NS7
About the indicator on the transmitter
The indicator provides the following information concerning the transmitter.
: Lit in blue / : Lit in orange / -: Unlit
The transmitter is being powered
The transmitter is receiving no audio signals:
- - - - (Keeps flashing in orange.)
PCM is not specified as the digital audio output method:
- - - - (Keeps double flashing in orange.)
The transmitter is receiving audio signals:
(Stays lit in blue.)
Information about the BLUETOOTH function
The transmitter is in pairing mode:
- - - - (Keeps double flashing in blue.)
A connection attempt is in process:
- - - - - - - - (Keeps flashing in blue at intervals of about 1 second for 30 seconds.)
A connection is established:
(Keeps flashing quickly in blue for about 5 seconds.)
A connection attempt is on hold/in process:
(Stays lit in blue.)
Other information
Initialization is complete:
(Flashes 4 times in blue.)
For details, see Initializing the transmitter.
Related Topic
Parts and controls
Initializing the transmitter
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Help Guide
Wireless Transmitter
WLA-NS7
Precautions
On safety
Refer to the Operating Instructions supplied with the transmitter.
Important information such as the model name is located on the bottom of the transmitter.
Do not keep listening at a loud volume for an extended period of time. Hours of listening at an ear-splitting volume
level may damage your hearing. To protect your hearing, keep the volume at an appropriate level.
Keep the volume low at first. Sudden loud sound may damage your hearing. It is advised that you gradually turn up
the volume.
Do not use the headphones while walking, driving or cycling. Doing so may cause traffic accidents.
Do not use at a dangerous place unless the surrounding sound can be heard.
On placement
Do not splash water onto this product and the supplied accessories. Those are not waterproof.
To eliminate the risk of malfunctions, avoid the following locations when placing or leaving this transmitter.
A place subject to high temperatures, such as under direct sunlight or lighting equipment, near a heat source, or
in a sauna
A place subject to excessive dust
A place subject to strong vibration
Place this transmitter on a flat, level surface. When placed on a sloped surface, the transmitter may fall over or fall off
the surface due to its own vibration, resulting in injuries, malfunctions, or performance degradation.
Depending on the conditions where this transmitter is placed, it may fall off the surface. Do not leave any valuables
near the transmitter.
How to care for the transmitter
When the transmitter is soiled on the surface, wipe off the soil with a dry, soft cloth or a well-wrung cloth dipped in tap
or lukewarm water.
If the surface of the transmitter gets dirty, do not use detergent, thinner, benzine, alcohol, etc. to clean the transmitter.
Others
Do not use or leave the transmitter in an extremely cold or hot environment (temperature outside the range of 5 °C -
35 °C (41 °F - 95 °F)). If the transmitter is used or left in outside the above range, the transmitter may automatically
stop to protect internal circuitry.
If you have any questions or problems concerning the transmitter that are not covered in this Help Guide, consult
your nearest Sony dealer.
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Help Guide
Wireless Transmitter
WLA-NS7
About the BLUETOOTH wireless technology
The BLUETOOTH wireless technology operates within a range of about 30 m (about 98 ft).
Supported version and profiles of the BLUETOOTH standard
A profile is a set of functions standardized for every characteristic of BLUETOOTH devices. The transmitter supports the
following version and profiles of the BLUETOOTH standard.
Supported BLUETOOTH version: BLUETOOTH standard, version 5.0
Supported BLUETOOTH profile:
A2DP (Advanced Audio Distribution Profile): Enables transmission and reception of high-quality music contents.
Maximum communication range
Use the BLUETOOTH wireless technology between the transmitter and a device that are located within about 30 m
(about 98 ft) from each other.
Maximum communication range may shorten under the following conditions.
There is an obstacle such as a person, metal, or wall between the transmitter and BLUETOOTH device.
A wireless LAN device is in use near the transmitter.
A microwave oven is in use near the transmitter.
A device that generates electromagnetic radiation is in use near the transmitter.
Interference from other devices
Because BLUETOOTH devices and wireless LAN (IEEE802.11b/g) use the same frequency (2.4 GHz), microwave
interference may occur and result in communication speed deterioration, noise, or invalid connection if the transmitter is
used near a wireless LAN device.
Interference to other devices
Microwaves emitted from a BLUETOOTH device may affect the operation of electronic medical devices. Turn off the
transmitter 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
Note
To be able to use the BLUETOOTH function, the BLUETOOTH device to be connected requires the same profile as the
transmitter's. Note also that even if the same profile exists, devices may vary in function depending on their specifications.
Due to the characteristics of BLUETOOTH wireless technology, there is a slight delay in playback on the BLUETOOTH device
receiving audio or music in comparison to the one sending it.
The transmitter 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.
BLUETOOTH devices to connect with the transmitter must comply with the BLUETOOTH standards prescribed by Bluetooth SIG,
Inc., and must be certified as compliant. While they comply with the BLUETOOTH standards, however, there may be cases that
connection attempts fail; or operations on the device, contents displayed on the device, or behaviors of the device vary
depending on the characteristics or specifications of the BLUETOOTH device.
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Noise or sound interruption may occur depending on the BLUETOOTH device connected with the transmitter, the communication
environment or the usage environment.
Establishing a BLUETOOTH connection between the transmitter and a device with a built-in radio or tuner may cause noise in
audio from the device. The transmitter should not be used with such a device via BLUETOOTH connection.
Keep the transmitter away from a device, such as a radio or a tuner. Use of the transmitter in the vicinity of such a device may
cause noise in audio from the device.
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Help Guide
Wireless Transmitter
WLA-NS7
Disclaimer regarding services offered by third parties
Services offered by third parties may be changed, suspended, or terminated without prior notice. Sony does not bear any
responsibility in these sorts of situations.
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