Instructions
Plug the HDMI and standard A/V cables into the ports on the back of the PlayStation 3. Plug the other ends of the cables into the television.
Turn on the PS3 with no game in the tray.
Scroll to "Settings" then down to "Display Settings." Scroll to "Video Output Settings" and select "HDMI".
Go back to the "Settings" menu and select "Sound Settings." Change "Audio Output Settings" to "HDMI".