Can anyone help with a 100" Hisense projector question? bottom part of screen is perfect color and clarity, the rest is darker.TV picture is aligned correctly.Is the shadow the reflection of the box?

Well the color has nothing to do with "perfect picture RESOLUTION". Go into setup and try to adjust the colors...or amount of color...same with brightness. Also check any automatic setting for the screen or picture.

Check and replace its back light CCFL lamps. If these are faulty, this kind of fault can occur. When replace it, replace all. None one or two. If you wish to get more details about the back light CCFL lamps and its working, check this link. Pull up older posts there.http://electronicshelponline.blogspot.com/

The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board must have replace the 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Tv 100% have a convergence problems,if any parts of the tv picture colors lines R,G,B are mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergence board the 2 STK ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved the tv pictures convergence problems.The shop,will cost u like $300-350 for parts and labors.

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. 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 including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms

• Screen Looks 3-D
• Colors wont align
• Screen may look distorted or warped
• No Audio/Video - makes a chirping sound.

Problem #2

Another common problem is dull or washed out video.
Your TV 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 here
http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

TV does not display picture on whole screen....it has three smaller colored rings with the picture inside of it

The dark side of the screen causes of the lamp alignment or prism glass alignment. This is critical you have to consult your LG technician to do this. But if you have any background o repair consult the service manual. Please careful not to touch the prism quarts so that you maintained the clarity of picture and brightness on the screen. 

Can any1 help me with this problem...i have a purple blob in centre of projection screen.

is this a burn mark on the lens..maybe due to over use?

Any input would be great!

can we see a picture of that?? I dont understand whatyour saying about the lines.. Are they differant colors or all red and do they make the pic bow?? does the pic look or have a reddish tinge to it?? is ther too much red in the picture??? Please let us know or let us see??

I've posted this solution several times but here goes. Try setting up the convergence through the menu by accessing the convergence setup menu. If this fails to work you have a bad digital convergence box and need a tech to replace it. About $60 to $100 fix.