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
1

5-030-456-11(1) Copyright 2021 Sony Corporation
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
2

Help Guide
Wireless Transmitter
WLA-NS7
Parts and controls
Related Topic
About the indicator on the transmitter
5-030-456-11(1) Copyright 2021 Sony Corporation
(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.
3

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.
1
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.
2
4

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.
3
5

Enjoying TV audio in spatial sound through Sony brand headphones
Terminating audio output in spatial sound (After use)
About the indicator on the transmitter
5-030-456-11(1) Copyright 2021 Sony Corporation
6

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.
1
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 .
2
7

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
5-030-456-11(1) Copyright 2021 Sony Corporation
8

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.
5-030-456-11(1) Copyright 2021 Sony Corporation
9

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.
1
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.
4
10