Projection TV sets have two very common problems listed below.
Problem #1) Convergence
These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture
to look normal. This is called convergence.
When its out of alignment the video will look 3-D
, wavy, distorted, etc. Most of the time
you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets
You can get more information
and a DIY convergenece repair kit with instructions from the link below.
Here are some of the most common problems with these sets...
*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV
Shuts down - May also make a constant chirping sound
Problem #2 - Another common problem is dull or washed out video.
Your set may have one or more of the following symptoms....
*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture
You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull