Instructions
Turn off the PS3. Disconnect any previous video connection (such as standard AV). Plug one end of the HDMI cable into the "HDMI Out" port on the back of the PS3. Plug the opposite end of the HDMI cable into the "HDMI" port on your HDTV.
Set your HDTV to its "HDMI" video display mode.
Turn on the PS3. After a few seconds, the PS3 logo appears on screen. The PS3 automatically detects the HDMI connection and asks you if you want to set the most optimal settings for your HDTV. Press "Yes."