Loewe Individual Soundprojector SL Soundbar

Hello, it's a Philippe 123 cm LED smart TV.

There are dozens of 123 cm Led smart Philips, the complete reference is on the invoice, on the nameplate on the back, the packaging box

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I call a spade a spade *
*in French in the text

No problem, your TV has a digital optical output:
Buy a good optical cable:

Which you will connect between the TV output and one of the two optical inputs of your soundbar, see page 7 of this manual:
http://docplayer.fr/27594021-Individual-sound-sound-projector-sl-audio-mode-d-emploi.html

Connect the soundbar to the corresponding input
If it doesn't work the first time, check the TV audio menu and tick "external speakers"
I call a spade a spade *
*in French in the text

But you're welcome, and come back to give news or if you have other questions

--
I call a spade a spade *
     *in French in the text