As subject,i have try using those tv cable,(three colours,red white yellow),connect it from my CPU to the tv output,but it fail.
Check your manuals for supported modes. May have to set ur PC / Laptop to some presentation mode.
think its some hdmi cable??
1. Your TV need to be in AV mode.
2. On your computer, you need to enable the second monitor
3. If you use Ati, then open catalyst and go find the monitor settings. Should see a TV icon and some controls there.
there is a cable to video cable that u can buy
plus the red white to audio cable too
then its all settings liao