How to Get to the Secret Menu on a Mitsubishi TV WD 57731by Marshal M. Rosenthal
The Mitsubishi WD 57731 rear-projection TV shares a common trait with other displays--the settings on the Mitsubishi are pre-set at the factory to provide a TV picture suitable for the bright lights found in the stores where they are sold. To adjust the Mitsubishi so that it is more suitable for your own viewing, activate the hidden "Service menu" that contains controls that otherwise can not be adjusted. The remote that comes with the Mitsubishi WD 57731 is all you need.
Press the "On" button on the Mitsubishi remote to turn on the Mitsubishi WD 57731 TV. Press the "Menu" button.
Press the following numeric keys once each in this exact order: 1, 2, 5, 7.
Press the "Menu" button.
Press the following numeric keys once each in this exact order: 1, 2, 5, 9.
Wait for the "Service menu" to appear on the screen. Make adjustments to the Mitsubishi WD 57731 using the "Video" and "Audio" buttons to make video and audio settings selections, and the Plus (+) and Minus (-) buttons to adjust the settings.
Press the "Menu" button twice to exit the "Service menu". Turn the Mitsubishi WD 57731 off.