TV Has No Sound

Check the batteries in the remote.

• Are they installed properly?
  • Sometimes the batteries are put back in incorrectly when they fall out if the remote is dropped.
  • They can come loose (like when the battery cover is missing). so push them into place and spin them in place so you are sure that the terminals have good contact.
  • Check for leakage or corrosion on the batteries. This can happen if the TV isn't frequently used so no one notices the remote failing.
• Are they dead? (Check with some fresh batteries) If everything works you've nailed it.
• Still no go? Go to the next step.

Sometimes just restarting the TV will clear a sound glitch.

• Unplug the TV for 60 seconds. Count slowly, and while you have it unplugged, press the power key for at least 30 seconds.
• Then plug it back in. Then turn it on again.
• In either case, check the sound and see if the problem is fixed. If not, move on to the next step.

In some instances, the sound for a device may be plugged into a mismatched port, so that the video feed is going in one place, and the audio to the wrong port. HDMI carries its own audio signal so this essentially doesn't apply to a TV connected via HDMI. Check that the video input and the audio input go into the same input port, like Source 1 Video and Source 1 Audio. If OK, go to the next cause.

A bad HDMI cable could be messing up the audio. A bad HDMI cable will often compromise the video as well, but it happens enough with just the audio going wrong to be worth checking.

• First, check the connections and re-insert them carefully at both ends.
• If that doesn't work, and you have another device available with an HDMI port, like a computer, use that same cable to connect a monitor to the computer.
• See if you get sound or if the cable works properly in that new setup.
• If it works, you know the cable is good. Go to the next step.
• If it doesn't work, replace the cable. Test it to confirm.

Occasionally a sound glitch can be a result of corrupted software or a corrupted update. It is a relatively simple process, and it is recommended by most manufacturers anyway, so it doesn't hurt to try. Your Owner's Guide will show you how for your specific model, and your TV may also be doing it automatically. Test the sound after the update. If good, you're all set.

If this hasn't worked there is a hard reset you can perform that returns the TV to factory settings, but it costs all your stored data unless you back it up. This is probably a more last resort procedure until you have checked everything else.

Your user manual will have information on how to do this for your specific model. Usually, it will be in the Settings type menus. The word "reset" will almost always be a part of the command along with "initial" or "factory".

Perhaps your speakers have failed, and they need to be replaced.

• You can often "flick test" a speaker with a 9-volt battery, by seeing if the speaker makes a noise when the input leads are momentarily connected to the battery,
• Alternatively you can check the speaker terminals with a multimeter for either no continuity or a short.
• Here's a link to a representative replacement guide.
• If the speakers seem to be operating, it may be your main board, replace it.