Dell Vostro 1700 (Early 2009) - Manual (Page 70)

70
Using Multimedia
4 Plug the single-connector end of the audio cable into the headphone
connector on your computer.
5 Plug the two RCA connectors on the other end of the audio cable into the
audio input connectors on your TV or other audio device.
6 Turn on the TV and any audio device that you connected (if applicable),
and then turn on the computer.
7 See "Enabling the Display Settings for a TV" on page 82 to ensure that the
computer recognizes and works properly with the TV.
S-Video and S/PDIF Digital Audio
1 S-video TV-out connector 2 composite video adapter
1 2