S Video To Rca Connector My Radeon 7000 Can't Detect My TV-out Cable When Using S-Video->RCA Connector!?

My Radeon 7000 can't detect my TV-out cable when using S-Video->RCA connector!? - s video to rca connector

I have Radeon X1300
You have the latest version of Catalyst 7.1 Center
connected to a standard screen .... Hopefully
Conneceted on television with:
Computer>>> S-Video>>>> RCA Cables>>>> TV

"I use the TV as the main screen, but can be used as an extension

In other words, my song X1300 recognize my TV

HEEEEEEEEEEEELP