
Connecting Your Soundbar to the TV
•
Install the battery correctly in the battery compartment. Normally the 
battery’s positive polarity (+) will face up.
Soundbar Sockets Overview
•
Quick Start Guide
2.1 Ch Compact soundbar with 
wireless subwoofer
TH-D258B
Thank you for purchasing your new product.
We recommend that you spend some time reading this Quick Start 
Guide in order that you fully understand how to connect your 
Soundbar to your TV.
Use your Soundbar instruction manual and TV instruction manual to 
choose the best way to connect your Soundbar and TV together. 
Unpacking
•
Remove all packaging from the unit. Retain the packaging. If you 
dispose of it please do so according to any local regulations.
First-time Use of Remote Control
The unit has a pre-installed 
lithium CR2032 battery. Remove 
the protective tab to activate the 
remote control battery.
Battery Replacement for the Remote Control
1. Gently push the tab of the battery 
tray in and slide it free from the 
remote control.
2. Replace with a new CR2025 battery.
3. Slide the tray back into the remote 
control. There will be a click once it is 
back in place.
Connecting to the TV
Method 1: Optical / Coaxial Connection
Use an optical cable (not included) or coaxial cable (included) to connect the soundbar’s OPTICAL / COAXIAL socket to the OPTICAL OUT / 
COAXIAL OUT socket of the external device. The simplest option is to connect your soundbar directly to your TV. If you connect the soundbar 
to another external device (e.g. Blu-Ray player), you will hear the sound from that device through the soundbar.
After the connection is completed,
1. Press on the unit or on the remote control to switch the unit on.
2. Press SOURCE on the unit or on the remote control repeatedly to select OPTICAL or COAXIAL mode.
The unit may not be able to decode all digital audio formats from the input source. In this case, the unit will mute. This is NOT a defect. Ensure that the audio setting of 
the input source (e.g. TV, game console, DVD player, etc.) is set to PCM (Refer to the user manual of the input source device for its audio setting details) with Optical/
Coaxial input.
This section involves various methods of connecting the product to other external components. Ensure all audio connections of the unit are connected before 
connecting to the mains power socket.
AC~
AC~
Optical cable (not included)
TV
Rear View of the Soundbar
Coaxial cable (included)
Method 2: HDMI Hub Connection
Using Your Soundbar as a hub
The ARC (Audio Return Channel) function allows sound to travel 
to and from your ARC-compliant TV to your soundbar through a 
single HDMI connection. To enjoy the ARC function, please ensure 
that your TV is both HDMI-CEC and ARC compliant and set up 
accordingly. When correctly set up, the CEC feature allows you to 
adjust the volume output (VOL+/VOL– and MUTE) of the soundbar 
witht the TV remote control. When you switch your TV on/o with 
your remote control, you soundbar will also be switched on/o. 
Be patient that it might take a few seconds for your TV to tell your 
Soundbar to switch on or o.
Use this method to connect all your devices into your TV.
1. Connect an HDMI cable (not included) from your soundbar’s 
HDMI OUT (ARC) socket to the HDMI (ARC) socket on your ARC-
compliant TV.
2. After connection, press button on the unit or on the remote 
control to switch the unit on.
3. Press SOURCE on the unit or on the remote control repeatedly to 
select ARC to play audio from your input device.
• Ensure to use an HDMI cables that can support the ARC function.
• HDMI-CEC will be called dierent names by dierent manufacturers – please 
refer to your owner’s manual for details on setting up HDMI-CEC and ARC.
• While using an HDMI cable for ARC function, CEC (Consumer Electronics 
Control) provides interoperability between the unit and various devices (e.g. 
TV). However, this unit is not guaranteed to fully operate with all HDMI-CEC 
enabled devices. This is NOT a defect.
1. COAXIAL Socket
2. AC~ Power Socket
Connect a power cord.
3. OPTICAL Socket
2 31 4 5 67 7
4. HDMI ARC Socket
5. SERVICE ONLY Socket
The USB socket is for service only.
6. AUDIO IN Socket
 Main Unit
 Remote Control
 (battery included)
 Subwoofer
 Mains Cable × 2
 Coaxial Cable
 3.5 mm to 3.5 mm 
 Stereo Audio Cable
 Wall Mount Bracket × 2
 Screw × 4
 (for installing the wall 
 mount brackets)
 Dowel × 4
 Instruction Manual
 Quick Start Guide
Blu-ray Player / DVD 
Player / Recorder
Set-top Box
Satellite 
Receiver
Game 
Console
Video 
Camera
Install the battery correctly in the battery compartment. Normally the battery’s 
positive polarity (+) will face up.
Operating Your Remote Control
•
TV
AC~
HDMI cable (not included)
Rear View of the Soundbar
Blu-ray Player / DVD 
Player / Recorder
Set-top Box Satellite 
Receiver
Game 
Console
Video 
Camera
TH-D258B_QSG_Final180514V1.indd 1 16/5/2018 1:43 PM