2006 MacMini Model A1176 cannot send video to Toshiba TV by S-video or ColorStream adapter

I attempted to hook my Mac Mini to my Toshiba Model 36AF41 TV. Since the TV does not have an HDVI input but does have both S-Video and ColorStripe, I purchased a VGA to ColorStripe/S-Video adapter. I tried the S-Video connection only, then tried the ColorStripe separately. Neither produced any image or sound on the TV. I then tried resetting the Mac Mini's resolution to 640 x 480 and retried the earlier procedure. Still no joy. Any suggestions anyone?