I have a 4 year old ws-48511 mitsubishi projection tv , hi- def built-in 1080 tru hi-def , my picture is losing contrast which makes the colors seem faded when the tv was new the factory default setting on the contrast was set at maximum, so i have no adjust I can make.
You may need to open up the screen and clean off the mirrors and lens on the picture tubes. If anyone smokes in the home, this is the biggest thing that makes them dirty. Good Luck, let us know how you make out with this set.