Can't connect soundbar to TV with cable

[Beck123]

Help for a technaphobe please! 

We have a Samsung TV (model ue49ks7500u) and a Samsung soundbar. We've connected via WiFi but recently the soundbar keeps dropping off, so we wanted to connect via cable. We purchased an optical cable but can't work out where to plug it in on the TV?! There's no audio out hole, but in the sound options on the TV it has "audio out/optical" as an option under select speaker 

[JAMES4578]

Hi @Beck123  You should be able to connect  the  cable to  the Digital Audio  Out Optical port of the  Tv as shown in this guide,  the other end will be connected to the Digital Audio In optical port on the Soundbar.    connections shown here  https://www.avforums.com/reviews/samsung-ks7500-ue55ks7500-uhd-4k-tv-review.12590  

However the better sound quality via an HDMI connection, see more here https://www.samsung.com/Soundbar Connections