Dell Inspiron 545 MT User Manual page 233

3 Plug the other end of the composite video cable into the composite video-
input connector on the TV.
4 Plug one end of the S/PDIF digital audio cable in to the S/PDIF audio
connector on the composite video adapter.
5 Plug the other end of the digital audio cable into the S/PDIF input
connector on your TV or other audio device.
Composite Video and Multi-Channel Analog Audio
Connecting Your Computer to a TV and Adjusting Display Settings
composite video
adapter
S-video TV-out
connector
multi-channel
analog audio
adapter
233