We just got a new cable box and now the Picture works but no sound. The volume is not muted on the tv or cable box. We've tried connecting the cable box three different ways and still get the same result , picture with no sound. The speaker output on the tv menu is turned on. We hooked the old cable box up and still no sound. We hooked up a different tv to the new cable box and the sound is fine.

Increase the volume on the TV and/or your connected media device (streaming player, Blu-ray player, cable or satellite box, etc.). Check the audio settings on your TV and connected devices. Turn off and unplug your TV and connected devices. Inspect the TV cables and ports, then check the ones on your devices as well.

1. Check Mute. Make sure the sound on your TV isn't muted. Push the Mute button on your TV remote. ...
2. Adjust Volume. On your TV remote, use the Volume Up/Down buttons. ...
3. Sound Menu. Push the Menu button on your TV Remote.

1. Check if the mute button on the cable box/TV/VCR is activated. If so, turn off the mute feature
2. Verify the volume on the cable box/TV/VCR is not turned all the way down, either by adjusting the volume level on the equipment itself or with the remote control
3. Check if the TV has an earphone or headphone jack. If so, make sure there are no earphones or headphones plugged into it
4. Check if the Cable Box/TV/VCR has a SAP/MTS switch (Secondary Audio Program / Multichannel Television Sound). If so, make sure it is set to the proper setting. Consult your TV/VCR manufacturer's user manual for information for your specific TV/VCR. Click here for information on changing this setting on a Cable Box
5. Check behind ALL TV and equipment (Cable box, TV, VCR, DVD, stereo receivers, etc) and the coax cable at the wall outlet for any loose or damaged connectors
6. Make sure all equipment and connections are hooked up correctly for the video and audio based on the type of connections being utilized

Try connecting your source device to another TV using the same cable to see if the audio works there. If it doesn't, the issue is either your source device or your cable.

are you using a cable box, tried to reset the box.

ya know I hate to say it but I've done this before. check the mute button on your remote. I've accidently hit mine before and it took me several days to realize it. lol. if it's not that. check the volume of the set itself, then check the volume with the remote....I know these are weird things to check, but they do & have happened, to me. lol. good luck & God bless.

Hi:
The IR receiver inside the television is becoming intermittent and needs to be replaced. You might also check the connections on the receiver small circuit board for cold or loose solder joints.

Did you press the mute button again, some TVs use this method.

Please read all before starting!
I'm a woman too. The first thing you have to do when your tv no longer has a picture is to determine whether or not the television needs to be repaired. The way to determine this is to perform some troubleshooting. The easiest thing to do is to turn the television on and turn the volume up and down on the television remote while looking at the screen. Do you see the volume bar going up and down as usual? Or is the volume of the tv set going up and down, and you can hear the volume increasing and decreasing but you cannot see any volume bar as usual? Also you can press the menu or display or info button (whichever of these your television remote has) and see if any writing whatsoever appears on the screen. I am asking you to use your television remote at this point, which is the one that came in the box with your television (not your converter box or cable box or satellite tv receiver or surround sound remote--I am speaking of your actual television remote).

I do understand that some people don't use their television remotes and disregard them putting them in a drawer or somewhere else and can't get to them. So if that's the case you can use the buttons on your television itself. There should be a volume up and a volume down button but DON'T push the channel buttons or the source/input button.

Ok if you see the volume bar going up and down or some menu or display information that is good. That means the television is ok (most likely). Then the problem would be with the stuff that you've got connected to your television or with the stuff you're connecting it with. Just try connecting something else to your television with the same cables, and then if there is no picture with new stuff connected try connecting the new stuff with a new cable. Remember that when you are connecting stuff to a television you have to select a corresponding input/source on the television in order to view it. The back of the television is labeled. If you plug something into video 2 or input 1 then you have to select that on your source/input button on your tv remote or tv panel.

If you isolate your problem to your cable box or satellite receiver or your cable service then you can contact the cable company or satellite company directly. Your box may need to be rebooted or replaced by them. It might also be a setting in the box. If you can do some of the troubleshooting and get back to me I can help you further when something has been ruled out or a problem has been isolated.

It appears you ve discovered the sound task levers required to adjustment properties. Your Tv can still move levers even when the volume is set to mute. Select the unmute button before any voice or audio would be reactivated. Assuming that seting the TV on mute has predominant integrety over the volume functions where not unmuting usually with the same button on the remote would not achieve accessibility to the volume functions. refer to the TV user guide for diagnostic audios. Good luck

Are you using a cable box or is your input through the coax cable or antenna? If you are using a cable box with RCA connections make sure the Red and Black cables are securely plugged in both the cable box and the TV. Check to see if your TV has sound by going to the antenna input and select any channel and crank up the volume. If you don't hear anything you'll probably need a new TV.