Check that the volume is not set to zero (0) or mute. To boost the volume level of the TV, use the volume up button on the remote, or use the Mute button to unmute the TV. The volume controls are located on the right side of the remote.
The leveling of the loudness should be modified. Navigate to Advanced Sound Settings > Volume Mode > Leveling by pressing the start button on the remote. Select Normal from the list and press OK to reset the settings.
If this does not work, use your Samsung TV remote to navigate to the menu. Select Sound, then Additional Settings/Speaker Settings, and finally Auto Volume to Normal (Sound > Additional Settings/Speaker Settings > Auto Volume > Normal). If you still have no sound, try using the Test button on your TV remote.
Following the activation of the TV and receiver, the following procedures must be taken:
The TV speakers are either silent or have a low loudness.
Using your remote, check the audio settings on your device: Select Settings > System > Remotes & Devices > Program Your Remote > Advanced Remote Program > Switch Volume Control after pressing the Home button. You can adjust the volume using the Arrow keys or use the Number buttons to scroll through the available options.
Check that no headphones or speakers are connected to the TV audio out jack on the side or front of your TV. Turn off the TV, cable box, and any other devices that are linked to the TV. Turning everything off and then back on might sometimes solve the "issue."
If you have an external speaker/headphone system, make sure it is turned off. If the problem still exists, then there is a chance that the issue lies with your home theater system rather than your TV. Contact your cable company or television manufacturer for help resolving this issue.
Examine your audio settings. On TV-connected devices, go to the settings menu and make sure the audio is set to Stereo (or Normal). Check the volume control in the lower right corner of the video you're watching on a computer or mobile device to ensure it isn't muted or set too low.