TCL S643W SOUNDBAR WITH SUB

• Check that the unit is not in standby by giving the power button/on/off button a quick press. 
• Try an alternative mains plug socket. 
• Change the fuse in the plug.

• Ensure you have selected Bluetooth mode on the soundbar. 
• Try disconnecting and reconnecting via Bluetooth. 
• Unplug the unit from the wall, hold down the power button for 10-15 seconds, plug back in, and try again. 
• Ensure the device you are trying to connect to can send sound. If you are trying to connect with another speaker this will not work as the soundbar can only receive the sound, and cannot send sound.

• Adjust the volume to the preferred level. 
• Increase the volume on the device connected to the soundbar. 
• Ensure you have the correct mode selected. For example, Bluetooth. 
• Ensure any cables are securely fitted. 
• Ensure there are no audio devices nearby which may be disrupting the signal.

• Check that the unit is not in standby by giving the power button/on/off button a quick press. 
• Change the batteries in the remote. 
• Unplug the unit from the wall, hold down the power button for 10-15 seconds, plug back in, and try again. 
• Try a camera test on the remote to check for the infrared signal. Put your smartphone in selfie mode, point the remote at the camera, and press some buttons. If the remote is working you should see a flicker at the end of the remote. If there is no light, it would indicate the remote is not producing a signal.

• Adjust the volume to the preferred level. 
• Increase the volume on the device connected to the soundbar. 
• Ensure you have selected AUX mode on the soundbar. 
• Turn on headphone volume on the connected device. If a TV, this is usually found within the sound menu. 
• Disconnect and reconnect the AUX cable. 
• Unplug the unit from the wall, hold down the power button for 10-15 seconds, plug back in, and try again.

• Adjust the volume to the preferred level. 
• Increase the volume on the device connected to the soundbar. 
• Ensure you have selected Bluetooth mode on the soundbar. 
• Try disconnecting and reconnecting via Bluetooth. 
• Unplug the unit from the wall, hold down the power button for 10-15 seconds, plug back in, and try again.

• Adjust the volume to the preferred level. 
• Increase the volume on the device connected to the soundbar. 
• Ensure you have selected Optical mode on the soundbar. 
• Disconnect and reconnect the Optical cable. 
• Change the TV’s sound setting to match the external speaker connected. For example, you may have an option for PCM (pulse-code modulation) which you can set. This is necessary to ensure the audio format matches that of the sound bar you have connected.

1. Press Home to access the Home Screen.  
2. Scroll to Settings, then press OK.  
3. Scroll to Device Preferences, then press OK.  
4. Scroll to About, then press OK.  
5. Scroll to Restart, then press OK.  
6. Scroll to Restart, then press OK.  
7. The TV will now restart.  

1. Press Home to access the Home Screen.  
2. Scroll to Settings, then press OK.  
3. Scroll to Device Preferences, then press OK.  
4. Scroll to Reset, then press OK.  
5. Scroll to Factory data reset, then press OK.  
6. Scroll to Erase everything, then press OK.  
7. Enter the code that appears on the screen.  
8. The TV will now reset. 

1. Press Home to access the Home Screen.  
2. Press and hold the Home to open the Apps folder.  
3. Scroll to Google Play Store, then press OK.  
4. Scroll to Sign in, then press OK.  
5. Enter your email address using the virtual keyboard.  
6. Scroll to Enter, then press OK.  
7. Enter the password using the virtual keyboard.  
8. Scroll to Enter, then press OK.  
9. Scroll to the desired App, then press OK.  
10. Press OK to install the App.  
11. The App will now be installed to your TV.  
12. The app is now installed. Press Home.  
13. Alternately press OK to launch the app.  

1. In Live TV Mode, press Settings.  
2. Scroll to Channel, then press OK.  
3. Scroll to Channel scan, then press OK.  
4. Scroll to Automatic search, then press OK.  
5. You can press Back at any time to cancel the scan.  
6. Scroll to the desired Tuner mode (E.g., Antenna), then press down.  
7. Scroll to the desired Channel type (E.g., Digital), then press down.  
8. Press OK.  
9. Your TV will scan for all available channels.  

Ensure the TV is plugged into a mains socket and, if necessary, try an alternative mains socket. An extension lead does not always supply the TV with sufficient power, so the TV may not be able to turn on fully if connected this way.

We would recommend trying the below steps:

1. Unplug the TV from the wall and disconnect any external devices.
2. Hold down the manual button on the unit for 30 seconds (if unsure of location please refer to the user manual).
3. Plug the TV back into a mains socket.

Please see how to perform a power reset here:

If this has not resolved the issue, please contact us using the details on this page.

If the TV is disconnecting from the internet, we would recommend trying the following:

• If multiple variations of your router appear in the network selection screen, select the one which does not have 5GHz at the end.
• Check that the TV is not situated too close or too far from the router, and that there are no obstructions that may be physically blocking the signal.
• Reset the WiFi router.
• Check if other devices are experiencing the same issue, or if it happens at a particular time. This may suggest there is an event triggering this loss of connection.

Check that all connections are fully inserted on both your TV and viewing source (for example, an aerial or a Sky box). If the issue persists, please try the following.

1. Unplug the TV from the wall and disconnect any external devices.
2. Hold down the manual button on the unit for 30 seconds (if unsure of location please refer to the user manual).
3. Plug the TV back into a mains socket.

Please see how to perform a power reset here: 

If this has not resolved the issue, please contact the support team using the details on this page.