Question Ps4, tv and HT-TXQ120

[MortenElite]

Hello,
I have a HT-TXQ120 and i want to connect my ps4 and tv. I already have it done by hdmi but I want to use a optical cable to.
But every time I set it up, then there’s no audio at all.

tried ps to tv with hdmi and then optical cable from ps to surround.
And the same as the above but with optical cable from the tv to surround. In the Manuel it says that I have to be on the D.in 1 channel but there comes no audio! PLEASE HELP

 

[americanaudiophile]

Connect the PS4 to the TV with HDMI.
Connect the HTS HDMI output to the TV for DVD playback.
Connect the TV optical out to the HTS optical input.
Use the TV menu to turn the optical output on. You may also have to turn the TV speakers off.

 

[MortenElite]

Now I connected the ps4 to the tv and put the optical cable from the tv to the hts.
I turned off the tv speakers but still no sound