Dell Inspiron 1521 (Mid 2007) - Manual (Page 63)

Using Multimedia
63
Your TV has either an S-video input connector, a composite video-input
connector, or a component video-input connector. Depending on what type
of connector is available on your TV, you can use a commercially available
S-video cable, composite video cable, or component video cable to connect
your computer to your TV.
1 S-video TV-out connector 2 S-video connector
1 S-video TV-out connector 2 composite video adapter
3 S/PDIF digital audio connector 4 composite video-output connector
5 S-video connector
1 2
5
4
3
2 1