Instructions
Turn the Playstation 3 off. There should be a red light on the front of the system when it is off.
Press and hold the power button for 5 or 6 seconds. The power button is located on the front of the device, right under the Playstation logo. You will hear a second beep after 6 seconds have passed.
Press the power button again to turn on the Playstation 3. The video settings will be reset and it will find your AV connection.