Auro does not work anymore on the TV?

Yesterday, I changed the HDMI connection on our 10-year-old Loewe TV to shortly connect the PlayStation to watch a movie. Since all slots were occupied, I disconnected the SkyReceiver and put it back after the movie.

Now my problem: Since I've plugged back the cable connections, the television does not recognize the Auro, ergo the TV has no sound. However, a DVD / CD player connected directly to the Auro still gets its normal sound.

How could that be and how can you fix it? Am grateful for every answer.

You can even look under the audio settings of your TV if he may have a wrong input or output channel.

Thanks for the answer. Have solved the problem now. When pulling out the flat screen TV has a down at the bottom of the Auro, which is installed in such a wooden panel, a cable solved. Why I did not come to this before, but I do not know?