Unable to turn sound on, picture is fine. volume numbers increases but still no audio

check brightness to increase full

Good!

it may be stuck in head phone mode check the head phone socket.

Hello
There is some loose solderings or leaky ceramic capacitors at the audio output section of your sound card. Check it.

1. hook up your cable box to another TV check it.
2. reset the TV by press and hold the [^] on the remote and press [power] on the TV.
3. Do software update.
4. replaced the main board,

Unplug,replug the tv about an hour later.Let the tv reset it self.Go to the menu,go to Audio setting,go down reset.The tv audio will work again.Not,than ur Tuner board is dead.Must be repalced.

I had this same issue, and solved it by putting the TV in "Theater Mode', which can be acheived by hitting the "Theater" button on the remote.

you may have a damaged remote circit or reciver on the dvd player or tv, look for a phone number on the instructions book to call and see if you can send it in to have it checked out

Sounds like the lamp is burning out, hopefully it's a replacable type.

It's likely that the volume on your cable box at the new place is set much lower than your old place, so you have to turn it up.

Turning up the television too loud will cause the annoying chirping in some cases.

Try using the cable box remote, and turn up the volume on your cable box, as you turn down the volume on your television.