anmedia wrote: In that case, he will offer you such a test. This will finally confirm where the damage is.
You need an optical cable with a maximum length of 30 cm (preferably new - good quality).
Prepare a home theater + computer on a short cable. Set up your home theater so that you can hear any sound from your computer. Turn on the TV, and reconnect the plug from the computer to the TV (you can do this with the devices turned on). In this connection, try all possible settings on the TV. If that fails, you're left with a TV failure, a socket, or a problem with the board in the TV.
I already wrote about it in my first post in this topic, but maybe I didn't describe it too precisely, hence the misunderstandings.
arab_123 wrote: The cinema is definitely well connected, the cable is also functional (when they were connected to a desktop computer, everything worked), but when connected to the TV, nothing can be heard.
It was the method you described that I found that the cable and the cinema are operational and the damage is on the TV side or some option on the TV is inactive. Everything was turned on and wired side by side. When I plugged in the optical cable from the computer to the cinema on the "D.IN" option, the sound was there. Then I connected the cable from the computer to the TV and there was no sound. I also wrote that I tried various options in the "sound" menu of the TV. I've tried almost all of them and probably in all possible combinations, but there was still no sound. Even then I started to suspect damage, but I thought that maybe the option to turn on the optical socket is somehow well hidden there, but I can't turn it on.