Purchased this 56" projection TV

Well David, it sounds like you need to unplug and open back and try to stick your head up in set and look down into CRT's tubes, you may have phopser damage on one of the tubes, you will need to turn on to see it just be careful not to touch anything electrical

Press the "display" button on the remote until all displays are gone.

Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded over.

You can find more details and solutions here on Fixya at the following link below. Or click HERE

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Most likely the Convergence IC's along with bias resistors have gone bad. It's not an expensive repair but I would take care of it as soon as possible. Usually in the area of $250.00 will take care of it.

Projection TV sets have two common problems. The first is known as a convergence problem. Common symptoms are....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.

The other common problem is cloudy CRT fluid in the lens.

Common Symptoms - you TV may have one or more of these...

• Dull Video
• Bright video - whiteish
• Redish video
• Halos around objects

You can see some example photos and find a solution here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Check the mirror in the TV..may have come loose.

No you cannot! There is a switch on the convergence pnl for complete convergence. You can make things 10 times worse if you don't know what your doing.

You have two bad convergence integrated circuits and possibly an open resistor or two in the supply.

replace convergence amp ic
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Replace convergence IC's.
RE-check alignment