Thomson SB250BT
Thomson SB250BT Soundbar
Instruction Manual
Introduction
Thank you for purchasing the Thomson SB250BT Soundbar. This 2.1 channel audio system is designed to enhance your audio experience for movies, music, and games. It features Bluetooth connectivity, a wired subwoofer for deep bass, and multiple input options including USB, SD card, AUX, and RCA. Please read this manual carefully before using the product to ensure proper operation and to maximize its performance.
Safety Information
- Power Source: Ensure the power supply matches the voltage specified on the unit.
- Ventilation: Do not block any ventilation openings. Maintain adequate space around the unit for proper airflow.
- Water and Moisture: Do not expose the unit to rain, moisture, or dripping/splashing liquids. Do not place objects filled with liquids on the unit.
- Heat: Keep the unit away from heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Cleaning: Clean only with a dry cloth. Unplug the unit from the power outlet before cleaning.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
- Placement: Place the unit on a stable, flat surface to prevent it from falling.
Package Contents
Please check that all items listed below are included in your package:
- Thomson SB250BT Soundbar
- Wired Subwoofer
- Remote Control (battery not included)
- Power Cable
- Audio Cables (e.g., RCA to 3.5mm AUX cable)
- Wall Mounting Brackets and Screws (if applicable)
- User Manual (this document)
Product Overview
Familiarize yourself with the main components and controls of your Thomson SB250BT Soundbar system.

Figure 1: Thomson SB250BT Soundbar and Wired Subwoofer. This image shows the main soundbar unit and the accompanying wired subwoofer, which provides enhanced bass.
Soundbar Controls and Ports

Figure 2: Side view of Thomson SB250BT Soundbar controls and ports. This image highlights the control panel on the side of the soundbar, including buttons for power, mode selection, volume, and playback, along with USB, SD card, and AUX input ports.
- POWER Button: Turns the soundbar on or off.
- MODE Button: Switches between input sources (Bluetooth, AUX, RCA, USB, SD).
- VOL- / VOL+ Buttons: Adjusts the volume level.
- PLAY/PAUSE Button: Plays or pauses audio playback (for USB/SD/Bluetooth modes).
- PREVIOUS / NEXT Buttons: Skips to the previous or next track (for USB/SD/Bluetooth modes).
- USB Port: For playing MP3 files from a USB flash drive.
- SD Card Slot: For playing MP3 files from an SD card.
- AUX Input: 3.5mm stereo audio input for connecting external devices.
- RCA Input: Stereo RCA audio input for connecting external devices.
Remote Control
The included remote control allows convenient operation of the soundbar from a distance. Insert 2x AAA batteries (not included) into the remote control before first use.
- Power: On/Off
- Mode: Select input source
- Volume +/-: Adjust volume
- Mute: Mute/unmute sound
- Play/Pause, Previous, Next: Media playback controls
- Bass +/-: Adjust bass level (if supported)
Setup
1. Placement
The soundbar can be placed on a flat surface, such as a TV stand, or mounted on a wall.

Figure 3: Thomson SB250BT Soundbar placed under a television. This image demonstrates a typical placement of the soundbar on a TV stand, positioned directly below the television for optimal sound projection.
- Soundbar: Position the soundbar centrally below your television. Ensure there are no obstructions in front of the speakers.
- Subwoofer: Place the wired subwoofer on the floor near the soundbar. Experiment with placement to find the best bass response for your room.
2. Connections
- Connect the Subwoofer: Connect the wired subwoofer to the dedicated subwoofer output port on the soundbar.
- Connect Audio Source: Choose one of the following methods to connect your audio source (e.g., TV, DVD player, smartphone):
- AUX Input: Use a 3.5mm audio cable to connect your device's headphone jack or AUX output to the soundbar's AUX input.
- RCA Input: Use an RCA audio cable (red and white connectors) to connect your device's RCA audio output to the soundbar's RCA input.
- Bluetooth: For wireless connection, refer to the "Bluetooth Pairing" section under Operating.
- Power Connection: Connect the power cable to the soundbar's power input and then plug it into a wall outlet.
3. Wall Mounting (Optional)
If you choose to wall mount the soundbar, follow these steps:
- Measure the distance between the wall mounting holes on the back of the soundbar.
- Mark the corresponding positions on the wall where you want to mount the soundbar. Ensure the marks are level.
- Drill pilot holes at the marked positions.
- Insert wall anchors (if necessary for your wall type).
- Secure the wall mounting brackets (if provided) or screws into the wall, leaving a small gap for the soundbar to hook onto.
- Carefully hang the soundbar onto the screws/brackets. Ensure it is securely fastened before releasing.
Operating Instructions
1. Power On/Off
Press the POWER button on the soundbar or the remote control to turn the unit on or off.
2. Selecting Input Source
Press the MODE button on the soundbar or the remote control repeatedly to cycle through the available input sources: Bluetooth, AUX, RCA, USB, and SD.
- The current input mode will typically be indicated by an LED light or a display on the soundbar.
3. Volume Adjustment
Use the VOL+ and VOL- buttons on the soundbar or the remote control to increase or decrease the volume.
4. Bluetooth Pairing
- Turn on the soundbar and select Bluetooth mode using the MODE button. The soundbar will enter pairing mode, indicated by a flashing Bluetooth indicator light.
- Enable Bluetooth on your smartphone, tablet, or other Bluetooth-enabled device.
- Search for available Bluetooth devices. You should see "SB250BT" or "Thomson SB250BT" in the list.
- Select "SB250BT" to pair. Once connected, the Bluetooth indicator light will stop flashing and remain solid.
- You can now play audio from your device through the soundbar.
Note: The Bluetooth range is approximately 10 meters (33 feet). Obstacles may reduce this range.
5. USB/SD Card Playback
- Insert a USB flash drive or an SD card containing MP3 audio files into the respective port/slot on the soundbar.
- Select USB or SD mode using the MODE button.
- The soundbar will automatically begin playing MP3 files.
- Use the PLAY/PAUSE, PREVIOUS, and NEXT buttons on the soundbar or remote control to manage playback.
Maintenance
- Cleaning: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the surfaces of the soundbar and subwoofer. Do not use liquid cleaners or abrasive materials.
- Storage: If storing the unit for an extended period, unplug it from the power outlet and store it in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Replacement (Remote Control): Replace the remote control batteries when its range decreases or it stops responding. Ensure correct polarity when inserting new batteries.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; Power outlet not active. | Ensure the power cable is securely connected. Check if the power outlet is working by plugging in another device. |
| No sound | Incorrect input source selected; Volume too low; Audio cable not connected properly; Mute function active. | Press the MODE button to select the correct input. Increase the volume. Check all audio cable connections. Press the MUTE button on the remote. |
| Bluetooth not connecting | Soundbar not in pairing mode; Device Bluetooth off; Device too far; Interference. | Ensure the soundbar is in Bluetooth pairing mode (flashing indicator). Turn Bluetooth on your device. Move device closer to the soundbar. Avoid strong electromagnetic interference. |
| USB/SD playback not working | Incorrect mode selected; File format not supported; USB/SD card corrupted or empty. | Select USB or SD mode. Ensure files are in MP3 format. Check if the USB drive/SD card contains valid audio files and is not corrupted. |
| Remote control not working | Batteries are dead or inserted incorrectly; Obstruction between remote and soundbar. | Replace batteries, ensuring correct polarity. Remove any obstructions. Point the remote directly at the soundbar's sensor. |
Specifications
| Model Number | SB250BT |
| Total Musical Power Output | 200 Watts |
| Audio Channels | 2.1 Channel System (Soundbar + Wired Subwoofer) |
| Connectivity Technology | Bluetooth 2.1 |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Input Ports | USB (1 port), SD Card, AUX (3.5mm), RCA |
| Supported Media | MP3 playback via USB & SD Card |
| Control Method | Remote Control, On-unit buttons |
| Mounting Type | Tabletop, Wall Mount |
| Material | Plastic and Aluminum |
| Color | Black |
| Item Weight | 6.61 Pounds (approx. 3 kg) |
| Subwoofer Connection | Wired |
Warranty and Support
This Thomson SB250BT Soundbar comes with a limited warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support or service inquiries, please contact your retailer or the Thomson customer service department.
Please retain your proof of purchase for warranty claims.
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