By john 
A soundbar that sits silent while your TV plays is a common setup headache. The cause is usually a connection or audio-output setting rather than a broken soundbar. A few methodical checks normally get the sound flowing from your TV to the soundbar as Situs TOTAL4D intended.
Possible Causes
The TV being set to use its own speakers instead of the soundbar is one of the most common reasons for silence. A loose or wrong cable, or the soundbar being on the wrong input, can also cause it.
An incorrect audio format setting on the TV, a muted soundbar, or a Bluetooth soundbar that has lost its connection may all leave you with no sound.
First Troubleshooting Steps
Check that the soundbar is powered on, not muted, and set to the correct input for how it is connected to the TV. In the TV’s audio settings, make sure the sound output is set to the soundbar rather than the TV’s internal speakers.
Reseat the cable between the TV and soundbar firmly at both ends, since a loose connection is a frequent and easily missed cause.
Advanced Steps
If there is still no sound, try a different cable or a different port on the TV, since the connection itself may be faulty. Check the TV’s audio format setting, as some soundbars need it set to a standard option rather than an advanced one.
For a Bluetooth soundbar, re-pair it with the TV, and restart both devices to clear any connection glitch that is blocking the audio.
It is also worth checking the TV’s audio delay or lip-sync setting if sound is present but out of step, since a soundbar sometimes needs a small adjustment here. Setting the delay correctly keeps the audio matched to the picture, which is just as important as getting the sound flowing in the first place.
Safety and Data Warning
Handle cables gently and never force a plug into a port, since bent pins can damage both the cable and the device. If you adjust audio format settings, note the original so you can restore it, and keep the volume moderate when testing to avoid a sudden loud burst once sound returns.
When to See a Technician
If the soundbar stays silent after checking outputs, cables, and inputs, and it produces no sound from any source, it may be faulty. A technician or the manufacturer can confirm this. Testing the soundbar with another device first helps show whether the fault is the soundbar or the TV.
Conclusion
Most soundbar silence comes down to the TV’s audio output setting, the input, or a loose cable. Setting the TV to output to the soundbar, reseating the cable, and selecting the right input restores sound in the majority of cases.