Have TV Questions? Ask a TV Technician
Hello and sorry you're having problems.By far the most common cause of this problem, is a glitch in the cable box processing.Please follow the steps below:1) Shut the TV off, and then disconnect the cable/SAT box.2) If using an HDMI cable, disconnect and reconnect the HDMI cable on both ends when the cable box is unplugged from power (make sure it's secure on both ends).3) Plug the cable box AND the TV back into power, then turn the TV on and attempt to watch a program.
This should restore the sound. However if it does not, then please try another source- such as a DVD player on the TV and see if that has sound. This tells us whether or not the TV, or the cable/SAT box itself is causing the problem.
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Let me know when you can see my reply so you can try those steps.