S Video To Coaxial How Do I Use The S-video Cord On My Dell Inspiron 1720?

How do i use the s-video cord on my dell inspiron 1720? - s video to coaxial

I DNT KNW as WRK. I DNT KNW pushing the buttons on my laptop to do it on my TV. Ive tried everything possible. It was in my HP my cousin just had the actual S-Video button, but I need help suggestions?