The Panasonic PT-5500 series projector includes menus with customizable features you can use to set your preferences on the display settings of your projector. If you modify a setting but then decide that you don't want the modification, or if you are selling your projector and want to restore it to factory settings, you can reset your projector in just a few minutes.
Press the “Menu” button on the front keypad of the projector.
Highlight “Picture” and press “Enter.”
Press and hold “STD” until the settings reset and the bars for each setting turn white. Release the button and press “Enter.”