Projection sets have two very common problems outlined below.
The first common problem is 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. The TV can also shut down when the convergence starts to fail.
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 including
Sony,
Samsung,
JVC,Philip
Magnavox,
Panasonic,
Akai,
Pioneer,
Hitachi,
Mitsubishi,
Zenith, RCA and others.
You can more info and a DIY convergenece repair kit with instructions from
TV Repair Kits using the link at the end of this article.
Here are some of the most common problems with these sets...
*Screen Looks
3-D *Colors wont align
*Screen may look distorted or warped or bowed
*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
SOLUTION
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
SOLUTION 
I have a similar problem on my Samsung PCN5425R. The picture is not terrible but the auto convergence (Perfect Focus) stops at 37% cpmplete. I also noticed that the "white level" on this set is substantilly more yellow than my new Hi Res LCD TV.
Is there a problem with the Samsung projection TV with its yellow color or are my expectations just too high relative to an LCD?
I have also same problem with the above stated problem my 55" samsung also stops Autofocus @ 37%. Where can we possibly buy the IC (STK) for my unit here in Toronto, Canada. Thanks
I am hitting 37% and it retrys about three times before it quits.
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