TV does not have sound at all.
1. Make sure that TV is not on mute, try to press “mute” button, to make sure that mute is off.
2. Check for speaker settings in TV menu. Make sure TV is set for internal speakers and not for external audio.
3. Try to check TV sound with different device (DVD, Blue Ray, or Game system).
4. If TV works with other devices most likely you have a problem with your cable or satellite receiver box. Try to reset receiver by unplugging power cable for 10 – 20 minutes. If that doesn't help, call your cable or satellite provider.