LG DS40T Wireless Soundbar Owner’s Manual

LG DS40T Wireless Soundbar

Specifications

• Model: DS40T (DS40T, SPT4-W)
• Connection: Wireless
• Connectivity: Bluetooth, HDMI, Optical

Product Usage Instructions

1. Installing the Soundbar:

Connect the soundbar to your TV using an optical cable or an HDMI cable. Place the wireless subwoofer close to the soundbar for optimal performance.

2. Connecting External Devices:

If using external devices like a set-top box or Blu-ray player, connect them to the TV via an HDMI cable.

3. Power Connection:

Connect the power to the wireless subwoofer first, then to the soundbar. Turn on the soundbar and wait for the LED on the wireless subwoofer to light up green, indicating a successful connection.

4. Connecting via Bluetooth:

To connect your smartphone to the soundbar via Bluetooth, enable Bluetooth on your smartphone and press the Bluetooth pair button on the soundbar. Follow the on-screen instructions to complete the pairing process.

5. Using the LG Soundbar App:

Download and install the LG Soundbar app on your smartphone. Youcan access additional features and settings by selecting “Help” in the settings menu within the app.

6. Manually Connecting the Wireless Subwoofer:

If the wireless subwoofer’s LED is red, it indicates a disconnection. Follow the manual pairing process by turning off the soundbar, pressing the pairing button on the subwoofer, and ensuring a green LED light indicates a successful connection.

FAQs

• Q: How do I know if the soundbar is connected to the subwoofer?
  • A: Check the LED light on the wireless subwoofer. A green light indicates a successful connection, while a red light signifies a disconnection.
• Q: Can I connect multiple devices to the soundbar simultaneously?
  • A: Yes, you can connect multiple external devices to the soundbar using HDMI or optical cables.

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OWNER’S MANUAL
Wireless Soundbar
Please read this manual carefully before operating your set and retain it for future reference.
Model DS40T (DS40T, SPT4-W)

2312_Rev01

www.lg.com Copyright © 2024 LG Electronics Inc. All Rights Reserved.

Soundbar Quick Guide
Installing and using the Product
a Connect the soundbar to your TV via an optical cable or an HDMI cable.

HDMI IN HDMI IN (ARC)

OPTICAL OUT

aa

D

1
C
2
A
3
B
E

HDMI OUT

A Soundbar B Remote Control Receiver C Status LED (ABC) D Wireless Subwoofer – Install it close to the soundbar. E External Device – (Blu-ray player, game console, etc.)

2

b If you are using an external device (ex. Set-top box, Blu-ray player, game console, etc.), connect it to the TV via an HDMI cable.
c Connect to power in the following order: wireless subwoofer [ soundbar. Then, turn on the soundbar. When the connection is automatically established with the soundbar, the LED on the wireless subwoofer will light up green. ([ See “Connecting the Product” on page 6.)
d Connecting the product to your smartphone via Bluetooth ([ See “Connecting via Bluetooth” on page 30.)
A Tap the Settings button on your smartphone and select Bluetooth. Turn on the Bluetooth function. ( Off > On)
B Press the Bluetooth pair button. After a moment, LED1 and LED2 blink white. C Find and select the product on your smartphone. The product appears as “LG DS40T(XX)”. D When the product is connected to your smartphone via Bluetooth, LED1 and LED2 light up white.
e Connecting to the LG Soundbar app ([ See “Connecting with a Smartphone via LG Soundbar app” on page 33.)
A Find and install the LG Soundbar app on Google Play or App Store from your smartphone. B You can get more information regarding its use by selecting [Help] in [Setting].
3

Manually connecting the soundbar to the wireless subwoofer ([ See “Connecting the wireless subwoofer manually” on page 8.)
If you see a red LED on the wireless subwoofer, it means that the soundbar is not connected to the subwoofer. If this is the case, connect them in the following order. A Press the Power button on the soundbar to turn it off. B Press the PAIRING button on the back of the wireless subwoofer. Check if LED blinks green.
– If you still see a red LED on the wireless subwoofer, press and hold the button on the back of the subwoofer again.
C Press the Power button on the soundbar to turn it on. D When the connection is established, you will see a green LED light on the wireless subwoofer
light up.

Installation

Connecting the Product
You can enjoy a richer sound by connecting the soundbar to the wireless subwoofer.
Connecting the wireless subwoofer automatically
After completing installation, the wireless subwoofer will automatically be connected to the soundbar. Connect the soundbar to the subwoofer in the following order. a Plug the power cable into the wireless subwoofer. b Plug the power cable connected to the wireless subwoofer into an outlet. c Connect the AC adapter cable to the DC IN (AC adapter input) terminal on the back of the product. d Plug the power cable into the AC adapter. e Plug the power cable connected to the AC adapter into an outlet. f Press the Power button on the soundbar to turn it on.
g When the connection is automatically established, you will see the LED on the wireless subwoofer light up green.
6

Checking the connection with the LED on the wireless subwoofer

You can check the connection status by looking at the LED on the wireless subwoofer.

LED Colour Blinking green Green Red Off

Status Connecting in progress Connected successfully Bad connection, or the subwoofer is in standby Power cable not connected

7

Connecting the wireless subwoofer manually
If you see a red LED on the wireless subwoofer, it means that the soundbar is not connected to the subwoofer. If this is the case, connect them in the following order. a Press the Power button on the soundbar to turn it off. b Press the PAIRING button on the back of the wireless subwoofer. Check if the LED on the subwoofer
is blinking green. If you still see a red LED on the wireless subwoofer, press and hold the button on the back of the subwoofer again.
c Press the Power button on the soundbar to turn it on. d When the connection is established, you will see the LED light on the wireless subwoofer light up
green. Note · Install the soundbar as close to the wireless subwoofer as possible. The closer the distance between the soundbar and the wireless subwoofer, the better the sound quality. · Please ensure there are no obstacles between the soundbar and the wireless subwoofer. · To prevent wireless interference, maintain a distance of at least 1 m between the soundbar or the wireless subwoofer and any peripheral devices that generate strong electromagnetic waves (ex. wireless routers, microwave ovens, etc.).
How to deactivate the wireless network connection(s).
Set up the Auto power function to off by the app and turn off the product.
8

Exploring the Product

Front
1 2 3
a Power This turns the product on/off. Function Press the button repeatedly to select the desired function or input mode. · Optical/ARC: Connects the product to a TV that supports an optical cable, ARC, or LG Sound Sync · Bluetooth – Connects the product via Bluetooth – Connects the product to a TV that supports LG Sound Sync (Wireless) · USB: Connects the product to a USB storage device Volume Adjusts the sound volume. Bluetooth pair It allows you to pair your Bluetooth device such as a smartphone to this product for three minutes. ([ See “Connecting via Bluetooth” on page 30.)
b Remote Control Receiver This receives wireless signals from the remote control.
c Status LED Options such as input mode and volume light up. ([ See “Status LED” on page 11.) · The status LED can be controlled as auto, off, and on. ([ See “Display” on page 18.)
9

Note · To reduce power consumption, the product will automatically turn off after 15 minutes of no input
signal from an external device.
10

Status LED

On (White, Orange, Purple, Green, Yellow, Red)

Off

Blink

Power on / Power off
1 2 3

LED1 blinks red.

Volume control
111 222 333
Mute
1 2 3

· Volume up: The LEDs get brighter and light up one by one. · Volume down: The LEDs get darker and turn off one by one. · The volume reaches maximum, all LEDs blink red. · The volume reaches minimum, all LEDs turns off. · If you press Up/Down button even when the level has reached the
maximum or minimum, the current function LED will blink 3 times. · The LED colour changes according to the volume level.
· 1-33: Green · 34-66: Yellow · 67-99: Red
All LEDs blink orange.

11

Function
1 2 3
1 2 3
1 2 3
1 2 3

OPTICAL/HDMI ARC LED1 lights up white.
Bluetooth ready LED1 and LED2 blink white.
Bluetooth LED1 and LED2 light up white.
USB LED1 lights up purple.

12

The other button inputs

1

LED2 blinks red once when you press the button: Sound Effects (AI

2

SOUND PRO , CINEMA , STANDARD , GAME ), Up/Down /

Left/Right, Play/Pause

3

13

Back
a DC IN Plug in the AC adapter. to the product.
b HDMITM d TV (ARC) Plug in an HDMI cable to connect the TV to the product.
c USB port Plug in a USB storage device to play music with the product.
d OPTICAL IN Plug in an optical cable to connect the TV to the product.
14

Exploring Remote Control
You can use the remote to control all functions of the product, from turning the power on/off to enabling cinematic sound.

a

i

b

c

j

d

k

e

l

f

g

h

m

Replacement of Battery

Use AAA 1.5V batteries. Replace the two batteries by inserting them into the remote control in accordance with the directions indicated. A Open the battery cover on the back of the remote control. B Insert the batteries with the + and ­ ends corresponding to the markings. C Close the battery cover. Risk of fire or explosion if the battery is replaced by an incorrect type. a Power
Turns the product on/off. b VOL (Volume)
Adjusts the sound volume. c Bluetooth pair
It allows you to pair your Bluetooth device such as a smartphone to this product for three minutes. ([ See “Connecting via Bluetooth” on page 30.)
15

d Mute This turns off the sound from the product.
e AI Sound Pro Artificial intelligence selects the optimal sound settings to suit your content.
f Up/Down/Left/Right These buttons are used to adjust the settings of the convenient functions.
Left/Right: To play the previous song, press Left button. To play the next song, press Right button. g Play/Pause To play or pause a song, press this button. · When listening to music on a USB storage device, you can select the play mode by pressing this
button for 3 seconds or longer, then press the button repeatedly to select the desired Repeat option. · REPEAT ONE: Plays the current file repeatedly · REPEAT FOLDER: Only plays the files in the folder on a loop · REPEAT ALL: Plays all files on a loop · REPEAT SHUFFLE: Plays a random file until all files are played, then ends playback · REPEAT OFF: Plays the files in order, then ends playback h Cinema Play content with 3D sound similar to a movie theater. i Function Press the button repeatedly to select the desired input mode or function. j Settings It allows you to adjust the settings of this product: AUTO POWER, NIGHT TIME, DISPLAY. Press Settings button and select the setting by using Left/Right button before you press the Up/Down button to turn on/off the setting. · AUTO POWER: When the TV or an external device is turned on or off, the product will also turn on or off automatically. It is available only when the product is connected to the TV with an optical cable. ([ See “Auto Power” on page 18.) · NIGHT TIME: This reduces the general sound volume, but raises the volume of soft and delicate sounds. This is useful when enjoying music or a movie late at night. ([ See “Night Time” on page 18.) · DISPLAY: The status LED can be controlled as auto, off, and on. ([ See “Display” on page 18.)
16

k Sound Tuning This adjusts the sound level of the connected speaker. Press the Sound Tuning button and then Left/Right button to select the desired speaker before you press the Up/Down button to increase/decrease the sound volume. Adjustable speakers and adjustment ranges are as follows: · Subwoofer: -15 ~ 6 · Treble: -6 ~ 6 · Mid: -6 ~ 6 · Bass: -6 ~ 6 · Adjusting subwoofer level is applied only when the subwoofer is connected.
l Standard You can enjoy optimised sound.
m Game Optimised sound for game.
17

Various settings for convenience

Convenient functions

Auto Power

This function automatically turns the product on or off when the TV or external device is turned on or off.
When the connected device is turned on, the product turns on automatically and selects a function according to the input signal.

Night Time

This reduces the general sound volume, but raises the volume of soft and delicate sounds. This is useful when enjoying music or a movie late at night.

Display

The status LED can be controlled as auto, off, and on.

Option Auto Off On

LED Status Dimmed after 20 seconds of button input. Turned off after 20 seconds of button input. Always on

18

How to change the settings
a Press Settings button. The product enters the setting mode and LED2 blinks white. 1 2 3
b While the LED2 is blinking, press Left/Right button to choose the setting you want. 1 2 3
c While the LED2 is blinking, press Up/Down button. If the setting is on or auto, LED1 blinks white. If the setting is off, LED3 blinks white. 1 2 3 (On/Auto) 1 2 3 (Off)
19

Sound tuning
You can adjust the sound level of each speaker and sound tone. a Press Sound Tuning button. The product enters the setting mode and displays the current level of
the product. b Press Left/Right button to choose the speaker you want to adjust. c Press Up/Down button to adjust the sound level.
Subwoofer (-15 ~ 6) -15 -10 -5

1111111111 2222222222 3333333333  
Treble, Mid, Bass (-6 ~ 6) -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6  
1111111111111 2222222222222 3333333333333  
Note · If you press Up/Down button even when the level has reached the maximum
or minimum, the current  
function LED will blink 3 times.  
20

Voice feedback function  
When you select a function or sound, the current status of the product is
guided by voice. (English voice only) You can turn this function on and off
with app only.  
Note · Voice feedback and Soundbar volume level work together up to 13.
However, the voice feedback volume  
level doesn’t increase above 13. · During voice feedback, all sounds except
for voice feedback becomes low temporarily. · Regardless of setting this
function, you can hear voice feedback for the settings, sound tuning, and  
information.  
21

#### Connecting

Connecting to the TV

Connecting with an Optical Cable  
Transmit your TV’s audio to the product by connecting it to the TV with an
optical cable. You can add a variety of 3D effects to the original audio to
fill the room with a deep, rich sound.  
Watching TV after connecting with an optical cable  
a If the digital cable terminal has a cover, first remove the covers from both
ends.  
b Using an optical cable, connect the OPTICAL IN terminal on the back of the
product to the Optical Digital Output (OPTICAL OUT) terminal on the TV as
shown in the picture.  
22

c Press the Function button repeatedly until LED1 lights up white. 1 2 3  
d Press the Settings button on the TV remote control to enter the [Speaker]
menu and set the output speaker to [Optical] or [External Speaker]. Settings
and menu items may vary depending on the TV manufacturer.  
Note · If the optical input signal and the ARC signal attempt to connect at
the same time, the ARC signal will  
take priority.  
When you use an LG TV  
You can adjust the volume with the LG TV remote control if the TV is connected
to the product with an optical cable. You can only do so on a TV that supports
the LG TV Sound Sync function. Check your TV’s user manual to see if your TV
is supported.  
Functions controllable with an LG TV remote control  
Volume, mute on/off Note  
· When using the product with an LG TV remote control, the volume and mute
status set on the TV will automatically be applied to the product.  
· You can still use the product’s remote control even after connecting it to
an LG TV. · To use LG Sound Sync, you may have to change the sound setting of
your TV. It may vary depending on  
the TV.  
23

Connecting via Bluetooth  
You can adjust the volume with the LG TV remote control if the TV is connected
to the product with LG Sound Sync (Wireless). Check out the TV user manual to
see if your TV is supported.

Watching TV after connecting it wirelessly  
a Press the Bluetooth pair button. After a moment, LED1 and LED2 blink white.
b Press the Settings button on the TV remote control, enter to the [Speaker]
menu, and connect the  
product to the TV. c When the product is connected to the TV via Bluetooth,
LED1 and LED2 light up white.

1

1

2

2

3

3

Note  
· When reconnecting after the first connection with LG Sound Sync, immediately
lights up as a white LED.  
· When using the product with an LG TV remote control, the volume and mute
status set on the TV will automatically be applied to the product.  
· You can still use the product’s remote control even after connecting it to
an LG TV.  
· If you turn off the power of the product with the Power button, the LG Sound
Sync (Wireless) will be disconnected.  
· Depending on the TV, the product may be connected to the LG TV even if it is
connected with the Bluetooth function.

24

Connecting with an HDMI Cable  
You can transmit TV audio to the product by connecting the TV to the product
with an HDMI cable. Add a variety of 3D effects to the original audio to fill
the room with a deep, rich sound.  
Watching TV after connecting with an HDMI cable  
a Using the HDMI cable, connect the HDMITM d TV (ARC) terminal on the back of
the product to the HDMI IN (ARC) terminal on the TV as shown in the picture.  
b Press the Function button repeatedly until LED1 lights up white. 1 2 3  
c Press the Settings button on the TV remote control to enter the [Speaker]
menu and set the output speaker to [HDMI ARC]. Settings and menu items may
vary depending on the TV manufacturer.  
Note · Make sure that your TV supports the ARC function before you press the
Setting button on the TV  
remote control and turn on ARC. For more information on how to set the
function, refer to the TV user manual as it may differ depending on the TV. ·
Use a certified cable with the HDMI logo.  
25

SIMPLINK  
· SIMPLINK refers to the HDMI-CEC function that allows you to use a single TV
remote control to easily operate an audio device or player connected to an LG
TV via HDMI. – Functions controllable with a SIMPLINK-compatible LG TV remote
control: Power on/off, volume control, mute on/off, etc.  
· For more information on how to set up SIMPLINK, consult your LG TV’s user
manual.  
Note · The SIMPLINK function may not work properly depending on the status of
the product or other  
connected devices. – HDMI-CEC features by TV manufacturer: LG SIMPLINK, Sony
BRAVIA Sync/Link, Philips EasyLink,  
Samsung Anynet+, etc.  
26

Connecting to an External Device  
Connecting with an HDMI Cable  
Connect the TV and external device (game console, DVD player, etc.) with an
HDMI cable and enjoy a deep and rich sound.  
Connecting an external device via HDMI  
a Connect an external device such as a Set-top box, DVD or Blu-ray player.
Following the picture below, connect the HDMI OUT terminal of the device to
the HDMI IN terminal on the TV.  
b Using the HDMI cable, connect the HDMITM d TV (ARC) terminal on the back of
the product to the HDMI IN (ARC) terminal on the TV.  
27

c Press the Function button repeatedly until LED1 lights up white. 1 2 3  
d When the external device is properly connected to the product, you can
listen to the sound of the device.  
Note · Please check the audio output settings in the Settings menu of your
external device (ex. Blu-ray player  
or TV). The audio output should be set to [No encoding], [Bitstream], [Auto],
or [Pass through]. For more information on how to set the output, please refer
to your external device’s user manual. · Use a certified cable with the HDMI
logo.  
28

Connecting with an Optical Cable  
Connect the TV and external device (game console, DVD player, etc.) with an
optical cable and enjoy a deep and rich sound.  
Connecting an external device via optical cable  
a Use the optical cable to connect the OPTICAL IN terminal on the back of the
product to the OPTICAL OUT terminal of your external device (ex. TV, Blu-ray
player) as shown in the picture.  
b Press the Function button repeatedly until LED1 lights up white. 1 2 3  
29

Using the Product as an Audio System

Connecting via Bluetooth  
You can play music files stored on a Bluetooth device, or run music apps to
enjoy the music with this product.

Please check the following first.  
· Bluetooth devices to be connected to the product should meet the following
specifications.  
– Bluetooth 5.3 technology  
– Codec: SBC, AAC · Steps to connect the device to the product may vary
depending on the Bluetooth device type  
and model. For more information on how to connect the device, please refer to
your external device’s user manual.

Select the [Bluetooth] from your smartphone’s Settings menu. Settings menu
items may vary depending on your smartphone manufacturer and model. a Turn on
the product. b Press the Bluetooth pair button. After a moment, LED1 and LED2
blink white.

1

1

2

2

3

3

c Tap the Settings ( / ) button on your smartphone and select Bluetooth.

(Android Phone) 30

(iPhone)  
d Turn on the Bluetooth function. ( Off > On) e You will see a list of
connectable devices on your smartphone. Find and tap “LG DS40T(XX)”.  
AVAILABLE DEVICES LG DS40T(XX) Bluetooth devices  
AVAILABLE DEVICES Bluetooth devices  
LG DS40T(XX)

f When the product is connected to the smartphone via Bluetooth, LED1 and LED2
light up white. g If you cannot find the product “LG DS40T(XX)”, tap the
Refresh button at the top right of the  
screen on the Android smartphone or turn the Bluetooth off and turn it on
again on iPhone.  
Bluetooth On  
LG Smart Phone AVAILABLE DEVICES  
Speaker Bluetooth devices Bluetooth devices  
(Android Phone)

#### Settings

Bluetooth

Bluetooth Now discoverable as “iPhone” MY DEVICES LG Speaeker1 LG Speaeker2 LG
Speaeker3 LG Speaeker4

Not Connected Not Connected Not Connected Not Connected

(iPhone)

31

h Run a Music app and listen to music on the smartphone.  
Note · The closer the Bluetooth device is to the product, the better your
connection. · If you pressed the Bluetooth pair button of the product and
selected the “Bluetooth” option, but  
could not connect to the Bluetooth device, LED1 and LED2 blink white for 3
minutes. Check the status of the Bluetooth device. · When using Bluetooth, you
should adjust the volume level to an appropriate level. · XX is the last 2
digits of the MAC address of the product. For example, if the MAC address is
9C:02:98:4A:F7:08, it will be displayed as “LG DS40T(08)”.  
32

Connecting with a Smartphone via LG Soundbar app  
Please use the LG Soundbar app to run various functions of the product
conveniently.  
Please check the following first.  
· The LG Soundbar app is available in the versions listed below. – AndroidTM
OS: Version 6.0 or higher – iOS OS: Version 12 or higher – Minimum supported
versions for each OS may change later.  
Installing the app  
Install the LG Soundbar app on your smartphone. To install the LG Soundbar
app, you can scan the QR code with a QR code scan app or download on Google
Play or the App Store.  
Downloading with a QR code  
a Scan the QR code below with a QR code scan app. b You will be directed to a
page where you can download the LG Soundbar app. Tap the app to install  
it.  
(Android Phone OS)  
(iPhone OS)  
33

Downloading from the Google Play or App Store  
Go to the Google play or the App Store on your smartphone and search for the
LG Soundbar app to install it.  
(Android Phone)  
(iPhone) Note · Settings menu items may vary depending on the smartphone
manufacturer and OS. · Google, Android and Google Play are trademarks of
Google LLC.  
34

Connecting to a USB Storage Device  
Enjoy high-quality sound by connecting a USB storage device containing music
files to the product.  
Connecting the product to a USB storage device  
a Plug the USB storage device into the USB port on the back of the product. ·
The product cannot play any devices connected via a USB storage device hub or
a USB storage device cable. · The product cannot be connected to any USB
storage device, USB type MP3 player, or card reader that requires a separate
device drive to be installed.  
b Press the Function button repeatedly until LED1 lights up purple. 1 2 3  
35

c Press the Play/Pause button on the remote control to enjoy the music. 1 2 3  
(Pause) 1 2 3  
(Play)  
36

Note  
· It is recommended that you purchase a separate USB gender changer to make it
easier to plug in and out USB storage devices.  
· Purchase a USB gender changer with a USB 2.0 extension cable. · USB devices
with a large storage volume may take several minutes to browse through files.
· LG Electronics is not responsible for any data loss. Please always back up
the data on your USB storage  
device to minimise damage caused by data loss.  
· Only FAT16/FAT32/NTFS formats are supported. exFAT format is not supported.
· Use the USB port of this product only for playing a media file. You cannot
charge external devices with  
the USB port.

USB storage devices supported  
· MP3 player · Flash MP3 player · USB flash device · USB 2.0 This product may
not recognise some USB storage devices.

Playable file specifications

File extension MP3 WMA OGG

Sampling frequency / Bitrate 32 kHz – 48 kHz / 8 kbps – 320 kbps 32 kHz – 48
kHz / 5 kbps – 330 kbps 32 kHz – 48 kHz / 30 kbps – 500 kbps

File extension FLAC (16 bit/24 bit) WAV (16 bit/24 bit)

Sampling frequency 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192
kHz 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

· Number of playable files: Up to 2,000 · Maximum number of directories: Up to
200 · This product cannot play files protected by DRM (Digital Rights
Management). · This product cannot play video files from a USB storage device.

37

#### Safety Precautions

Safety and Regulatory  
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK).
NO USERSERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.  
This lightning flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of uninsulated dangerous voltage
within the product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.  
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the product.  
WARNING: · TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD, DO NOT EXPOSE THIS
PRODUCT TO RAIN OR  
MOISTURE. · Do not install this equipment in a confined space such as a book
case or similar unit. CAUTION: · Do not use high voltage products around this
product. (ex. Electrical swatter) This product may  
malfunction due to electrical shock. · No naked flame sources, such as lighted
candles, should be placed on the apparatus. · Do not block any ventilation
openings. Install in accordance with the manufacturer’s instructions. Slots  
and openings in the cabinet are provided for ventilation and to ensure
reliable operation of the product and to protect it from over heating. The
openings should never be blocked by placing the product on a bed, sofa, rug or
other similar surface. This product shall not be placed in a built-in
installation such as a bookcase or rack unless proper ventilation is provided
or the manufacturer’s instruction has been adhered to. · The apparatus should
not be exposed to water (dripping or splashing) and no objects filled with
liquids, such as vases, should be placed on the apparatus. · For safety
marking information including product identification and supply ratings,
please refer to the main label on the bottom or the other surface of the
product. · Be careful to make sure children do not put their hands or any
objects into the *speaker duct. – * speaker duct: A hole for plentiful bass
sound on speaker cabinet. (enclosure)  
38

CAUTION concerning the Power Cord The Power Plug is the disconnecting device.
In case of an emergency, the Power Plug must remain readily accessible. Check
the specification page of this owner’s manual to be certain of the current
requirements. Do not overload wall outlets. Overloaded wall outlets, loose or
damaged wall outlets, extension cords, frayed power cords, or damaged or
cracked wire insulation are dangerous. Any of these conditions could result in
electric shock or fire. Periodically examine the cord of your device, and if
its appearance indicates damage or deterioration, unplug it, discontinue use
of the device, and have the cord replaced with an exact replacement part by an
authorised service centre. Protect the power cord from physical or mechanical
abuse, such as being twisted, kinked, pinched, closed in a door, or walked
upon. Pay particular attention to plugs, wall outlets, and the point where the
cord exits the device. For models using an adapter Only use the AC adapter
supplied with this device. Do not use a power supply from another device or
another manufacturer. Using any other power cable or power supply may cause
damage to the device and void your warranty.  
39

For models using a battery This device is equipped with a portable battery or
accumulator. CAUTION: Risk of fire or explosion if the battery is replaced by
an incorrect type. For models using a built-in battery Do not store or
transport at pressures lower than 11.6 kPa and at above 15,000 m altitude. ·
replacement of a battery with an incorrect type that can defeat a safeguard
(for example, in the case of  
some lithium battery types); · disposal of a battery into fire or a hot oven,
or mechanically crushing or cutting of a battery, that can  
result in an explosion; · leaving a battery in an extremely high temperature
surrounding environment that can result in an  
explosion or the leakage of flammable liquid or gas; and · a battery subjected
to extremely low air pressure that may result in an explosion or the leakage
of  
flammable liquid or gas. Symbols  
: Alternating current (AC). 0 : Direct current (DC).  
: This is a class II equipment. 1 : Standby power state. ! : The power is
turned on.  
: Danger voltage.  
40

Prevention of product misuse  
To prevent misuse of the product, please be sure to check the contents below.  
Precautions for installing the product  
· Do not install the product in an unstable or vibrating place, such as on a
shaking shelf or inclined surface. Install the product on a firm and level
surface. – Otherwise, the product may fall or tip over and cause injury. – If
you install the product on an unstable surface, the product may not work
properly.  
· If you install the product on a piece of furniture or shelf, make sure that
the bottom front of the product does not protrude. Always use a piece of
furniture or shelf that fits the product size. – Otherwise, the product may
lose its balance and fall, causing injury or product damage.  
· Install the product in a safe place. Otherwise, a child may bump into an
edge of the product and get injured.  
· Install the product in a place free from electromagnetic interference for
proper operation. · If you install the product in a place that does not meet
the general use conditions, an unexpected  
quality problem may arise. So, make sure that you contact the service centre
first before installing the product in such a place. · Do not keep the product
in a place where the temperature is too high (above 40 °C) or too low (below 5
°C) or a place with too much humidity. · Avoid places exposed to direct
sunlight or heat, e.g., near a heater. Do not use or keep flammable sprays or
substances near the product. – Otherwise, there is a risk of explosion or
fire. · Do not install the product in a place with too much moisture, dust or
soot. – Otherwise, it may cause a fire or electric shock. · Do not install the
product in a narrow space, such as inside a bookshelf, that does not ventilate
well. Do not cover the product with a table cover or curtain. – Otherwise, it
may increase the product temperature, causing a breakdown or fire. · Connect
the power plug of the product to a power outlet that is easily accessible. –
When a fire or other problem occurs in the product, you must be able to remove
the power plug  
quickly. · Do not connect multiple products to one power outlet at the same
time.  
– Otherwise, it may cause overheating, resulting in a fire.  
41

Precautions for using the product  
· Do not lift or move the product while it is operating. – Otherwise, it may
cause a breakdown.  
· When moving the product, pull out the power cord and all cables connected to
the product. – Otherwise, it may cause a fire or electric shock.  
· Stop using the product immediately if you notice smoke or a strange odor. In
this case, turn off the power immediately, disconnect the power plug, and
contact the service centre. – Using the product in this state may result in a
fire or electric shock.  
· Do not insert metal objects such as coins and hairpins or flammable objects
such as paper and matchsticks into the product. Make sure that you tell any
children not to do so. – Otherwise, it may cause a breakdown.  
· If a foreign substance is inserted into the product, disconnect the power
plug and contact the service centre.  
· Do not put a heavy object on top of the product. – Otherwise, it may tip
over or fall, causing injury.  
· Make sure that a child does not hang on the product or get on it. –
Otherwise, the product may tip over or fall, causing injury. Make sure that
you tell any children not to do so.  
· Remove the power plug during thunderstorms. – Otherwise, it may cause a
fire.  
· Do not place vessels with liquid, such as a vase, pot, cosmetics, or
medicine, on top of the product. – Otherwise, it may result in a fire,
electric shock, or injury due to its fall, etc.  
· Make sure that you connect the power plug firmly. Do not use voltage other
than the rated voltage indicated on the product. – An insecure connection may
result in a fire.  
· Do not insert a conductor, such as chopsticks, into the groove on the other
side of the product while the power plug is connected to an outlet. Do not
touch the power plug immediately after unplugging it from the outlet. –
Otherwise, it may cause electric shock.  
· Hold the power plug with dry hands. – Otherwise, it may cause electric
shock.  
· Do not move or push the product while holding a product cable such as a
power cord. – The cable may get damaged and cause a breakdown or result in a
fire or electric shock.  
· When removing a cable plugged into the product, make sure that you hold the
connector at the end of the cable. Do not hold the cable line. – Otherwise, it
may result in an injury or the product may fall and cause a breakdown.  
· Do not keep the product in a place exposed to heat, e.g., near a heater. –
Otherwise, it may cause a fire or malfunction.  
· Do not disassemble, repair, or modify the product. – Otherwise, it may cause
a breakdown, resulting in a fire, electric shock, or injury.  
· Keep plastic wraps out of reach of toddlers. – Otherwise, toddlers may choke
on the plastic wraps.  
· Do not drop an object on the product or make an impact on it. Keep the
product away from places with severe vibrations or magnets.  
42

· Do not damage, modify, bend, twist, or heat a power cord. – Otherwise, it
can damage the power cord, resulting in a fire or electric shock.  
· When you are not using the product for a prolonged period, such as when you
are away from home, unplug the power cord from the power outlet. – If dust
accumulates, it can cause heat, resulting in electric shock or fire due to a
short circuit.  
· Do not dispose of waste batteries together with regular waste. Dispose of
them separately. – Otherwise, there is a risk of explosion or fire.  
· Do not use high voltage products around this product. (ex. Electrical
swatter) – This product may malfunction due to electrical shock.  
· Do not touch the power plug immediately after unplugging it from the outlet.
– Otherwise, it may cause electric shock.  
· Connect the power plug to a grounded outlet or extension cord. (This does
not apply to products without a ground.) – Otherwise, it may cause a breakdown
or electric shock due to a short circuit.  
· In the case of a product with a vent, keeping the product turned on for a
prolonged period can result in the vent getting hot. Do not touch the vent
when it is hot. The heat is not a fault of the product and does not cause any
malfunction. So, you may use the product without worry.  
· Do not damage the power cable, AC adapter, or power plug. Do not place a
heavy object on top of the power cable or AC adapter. – Otherwise, it may
cause a fire or electric shock.  
· If dust, dirt, etc. is found on the power plug pins, an AC adapter, or a
power outlet, wipe it completely. – Otherwise, it may cause a fire.  
· In the case of a product with a power cord or AC adapter, use only genuine
power cords and AC adapters provided by LG Electronics. – Otherwise, it may
cause a fire or electric shock.  
· If you are using headphones or earphones, do not turn on the volume too
loudly or use them for a prolonged period. [This only applies to models that
support headphones or earphones] – Otherwise, it may negatively affect your
hearing ability.  
· The software of this product can be updated with the LG Soundbar app. Do not
turn off the power of the product while updating the software. Once the update
is complete, the product power turns off automatically. – If you turn off the
power of the product while the software is being updated, it may cause a
product malfunction.  
43

The following only applies to models with a remote control · Do not let
children use the remote control. Keep the remote control out of reach of
toddlers. · Do not let children put the remote control in their mouth. Make
sure that children don’t swallow the  
remote control cover or a battery. If a child swallowed one, consult a
physician immediately. · Beware that children may step on the remote control
cover and get injured. · Remove obstacles between the product and the remote
control for the smooth operation of the remote  
control. The following only applies to models that use optical discs · Do not
insert your hand into a disc drive or pull it out forcefully. · Make sure that
children do not insert their hands into the disc drive. The following only
applies to models that able to watch video · Refrain from watching a 3D video
if you didn’t have enough sleep or after drinking alcohol.  
– Some 3D videos may surprise or excite people. · If any of the following
symptoms occur while watching a video, stop watching it immediately and take a  
rest. – If any of the symptoms continue, consult a physician. Vertigo, burning
sensation of eyes or face,  
unconscious motion, spasm, clouded consciousness, confusion, disorientation,
nausea. · You may suffer a symptom such as a seizure when you watch a certain
image in a video or game or a  
video with a certain pattern or flashing lights. If you or any of your
relatives have a history of epilepsy or seizures, consult a physician before
watching. · When you watch a 3D video, remove objects that are fragile or can
cause injury from your surroundings. – If you mistake a 3D video as real or
move your body with surprise, you or your nearby relatives may  
get injured or objects near you may get damaged.  
Precautions for cleaning the product  
· Do not spray water directly onto the product when cleaning it. – Otherwise,
it may cause a fire or electric shock.  
· When cleaning the product, make sure that you pull out the power cord first
and wipe the surface of the product lightly with a dry cloth. Do not use
chemicals or detergents when cleaning the product. They may deteriorate the
product surface or peel off the paint from the product (benzene, alcohol,
etc.).  
44

Before Reporting Product Malfunction

#### Troubleshooting

If you experience the following issues while using the product, please perform
several checks, as they may not be malfunctions.

General Errors

Issue The product does not work properly The power does not turn on There is
no sound  
The subwoofer does not produce sound  
The remote control does not work properly The Auto Power function does not
work

Solution  
· Unplug the power cables and any external devices such as your TV, subwoofer,
or amplifier from the product, then plug them in again.

· Is the power cord plugged into the outlet properly? – Connect the power plug
to the outlet correctly.

· Is the volume set to minimum?

– Press the Volume

button on the remote control to turn up the volume.

– If you are using an external device such as a set-top box, portable device,
or Bluetooth device, adjust the volume of the external device.

· Is the mute function activated?

– If all LEDs blink orange, the mute function is on. Press the Mute button to
unmute.

· Is the correct product function selected according to the external device
connected?

– Press the Function button to check if you selected the correct function.

· Is the product properly connected to the wireless subwoofer?  
– If the LED on the wireless subwoofer is blinking green or lit in red, it
means it is not connected. If the connection is established, a green light
will appear. Reconnect the product to the wireless subwoofer. ([ See
“Connecting the Product” on page 6.)

· When using the remote control, point it at the front of the product. · Use
the remote control within a 7-m radius of the product. · Replace the batteries
with new ones as needed.

· Check connection to external devices (ex. set-top box, portable device,
Bluetooth device).

45

LG Sound Sync does not work  
The product volume is low  
The product fails to recognise a USB storage device A Bluetooth device cannot
be paired

· Check whether your TV supports LG Sound Sync. · Check if the TV is properly
connected to the product via an optical cable.  
– Press the Settings button on the TV remote control to check if the function
is turned on in [LG Sound Sync].  
· Check the following and change the settings accordingly. – Run the LG
Soundbar app, tap the Settings button on the first screen, and change the
[DRC] function to [Off] on the [Sound Settings] menu.  
– When the product is connected to a TV, press the Settings button on the TV
remote control, select the [Speaker] menu, and change the [Digital Sound
Output] setting from [PCM] to [AUTO] or [BITSTREAM].  
– If the product is connected to a playback device such as a DVD player or
Blu-ray disc player, go to the connected device’s Settings menu. Change the
[Digital Sound Output] setting from [PCM] to [PRIMARY PASS-THROUGH] or
[BITSTREAM]. Set the [DRC] of the connected device to [OFF].  
– If the product’s Night Time mode is on, turn it off by pressing the Settings
button and Left/Right and then Up/Down.  
· The product may not support the file format of the USB storage device.
Format the USB storage device and reconnect it. When formatting, refer to the
USB storage device formats supported by the product and select an appropriate
file format. ([ See “Connecting to a USB Storage Device” on page 35.)  
· Press the Settings button on the Bluetooth device and check whether the
Bluetooth function is enabled. If Bluetooth is enabled, turn it off and on,
then try again.  
· Remove any obstacles between the product and the Bluetooth device. ·
Bluetooth pairing (connection) may not work properly depending on the  
Bluetooth device type or the surrounding environment.

46

Problems in Wireless Connection

Issue  
There is radio interference  
The Bluetooth connection is causing a malfunction or making noise

Solution  
· Install the product and the wireless subwoofer as close to each other as
possible.  
· Do not install the product on metal furniture. · Wireless communication may
not work properly in weak signal areas.  
· Do you hear noise or experience malfunctions when using Bluetooth? – Do not
let any part of your body contact the transceiver of the Bluetooth device or
the product. – Do not install the Bluetooth device on a wall or in a secluded
spot. – Remove any obstacles between the product and the Bluetooth device. –
Install the Bluetooth device near the product.  
· When the Bluetooth device is too far from the product, Bluetooth may be
disconnected or malfunctions may occur. – Install the Bluetooth device 1 m
away from devices that use the same frequency as the product, such as wireless
routers, medical equipment, and microwave ovens.

47

Appendix

#### Specifications

General Power Consumption  
AC adapter  
Dimensions (W x H x D) Operation Temperature Range Operation Humidity Range
Bus Power Supply (USB) Available Digital Input Audio Sampling Frequency
Available Digital Input Audio format

Refer to the main label.  
Networked standby: 2.0 W · Model : A702-230131W-M21 · Manufacturer : Dongguan
Aohai Technology Co.,Ltd. · Input : 100 – 240 V ~ 50 / 60 Hz · Output : 23.0 V
0 1.31 A Approx. 720.0 mm x 63.0 mm x 87.0 mm (including the base)  
5 °C – 40 °C  
5 % – 80 % RH  
5 V 0 500 mA  
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz  
Dolby Digital, DTS Digital Surround, PCM

Input/Output OPTICAL IN HDMITM d TV (ARC)

3.0 V (p-p), (optical audio connection terminal) × 1 19-pin (Type A, HDMITM
connection terminal) × 1

Amplifier (RMS output) Total Front Subwoofer

300 W RMS 50 W RMS × 2 (Impedance: 4 , THD 10 %) 200 W RMS (Impedance: 3 , THD
10 %)

48

Wireless Subwoofer Power Requirement Power Consumption Type Impedance Rated
power Max. Power  
Dimensions (W x H x D)

Refer to the main label on the Wireless Subwoofer. Refer to the main label on
the Wireless Subwoofer. 1-way 1 speaker 3 200 W RMS 400 W RMS Approx. 171.0 mm
× 320.0 mm × 252.0 mm (including the base)

· Design and specifications are subject to change without notice.

49

Registered Trademarks and Licenses  
All trademarks and trade names are the property of their respective owners.  
Dolby, Dolby Audio and the double-D symbol are registered trademarks of Dolby
Laboratories Licensing Corporation. Manufactured under license from Dolby
Laboratories. Confidential unpublished works. Copyright © 2012­2021 Dolby
Laboratories. All rights reserved.  
The Bluetooth® word mark and logos are registered trademarks owned by the
Bluetooth SIG, Inc. and any use of such marks by LG Electronics is under
license. Other trademarks and trade names are those of their respective
owners.  
The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI Trade Dress
and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing
Administrator, Inc.  
“Made for iPhone,” and “Made for iPod” mean that an electronic accessory has
been designed to connect specifically to iPhone, or iPod, respectively, and
has been certified by the developer to meet Apple performance standards. Apple
is not responsible for the operation of this device or its compliance with
safety and regulatory standards. Please note that the use of this accessory
with iPhone or iPod may affect wireless performance.  
50

For DTS patents, see http://patents.dts.com. Manufactured under license from
DTS, Inc. or DTS Licensing Limited. DTS,Digital Surround, and the DTS logo are
registered trademarks or trademarks of DTS, Inc. in the United States and
othercountries. © 2021 DTS, Inc. ALL RIGHTS RESERVED.  
Open Source Software Notice Information  
To obtain the source code that is contained in this product, under GPL, LGPL,
MPL, and other open source licenses that have the obligation to disclose
source code, and to access all referred license terms, copyright notices and
other relevant documents, please visit https://opensource.lge.com. LG
Electronics will also provide open source code to you on CD-ROM for a charge
covering the cost of performing such distribution (such as the cost of media,
shipping, and handling) upon email request to opensource@lge.com. This offer
is valid to anyone in receipt of this information for a period of three years
after our last shipment of this product.  
51

Handling the Product  
When shipping the Product  
Please save the original shipping carton and packing materials. If you need to
ship the product, for maximum protection, re-pack the product as it was
originally packed at the factory.  
Keeping the exterior surfaces clean  
· Do not use volatile liquids such as insecticide spray near the product. ·
Wiping with strong pressure may damage the surface. · Do not leave rubber or
plastic products in contact with the product for a long period of time.  
Cleaning the product  
To clean the product, use a soft, dry cloth. If the surfaces are extremely
dirty, use a soft cloth lightly moistened with a mild detergent solution. Do
not use strong solvents such as alcohol, benzine, or thinner, as these might
damage the surface of the product.  
52





#### References

  * [ Patents - DTS](http://patents.dts.com "Patents - DTS")
  * [ LG Open Source](https://opensource.lge.com "LG Open Source")

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