Projectors display the projected picture have blue color on right side and green colour on left side . what is the problem?

Your other model was more than likely a CRT projector where you coulod manually align the Red/Green/Blue guns. The one you have now is more than likely an LCD projector which can't be readily aligned. Sounds like the panel is failing.

Blue and Green Polarizers need replaced but I don't believe you will find them any longer.

Try changing your vga/dvi cable,or it could be colour decay.

Does that set have whats called a color wheel, if so that maybe you problem, and replacement is how you fix it.

Hello, With most rear projections there is usually an alignment to do with the set up with your TV. This is so the red, blue and green projectors align together to give the correct colouring. This sounds to me what may be causing the outlining of the blue. This can also make it seem off colour. Look in the set up menu of the tv and see if you can find this alignment feature. Usually a cross will appear and you move a blue, red, and green cross with the arrows on your remote to align over the original white one. If this does not work, it may also mean that one of your projectors, that is the red, blue or green one may be failing causing the off colouring. Hopefully this alignment may fix it for you.

IN THE MENU CHECK FOR A COLOR CONVERSION OPTION ,,USE IT ,,TO REALIGN THE COLORS

HELLO. IT SOUND'S LIKE YOUR PROBLEM IS IN YOUR CONVERGCE BOARD.!!! YOU MAY HAVE TO REPLACE YOUR (IC chip's) on the board .!!! they are what control the color for your convergence.!!! set up .!!! that make your (CRT GUN'S) BLUE & RED LINE UP WITH YOUR GREEN (CTR GUN) TO MAKE YOUR PICTURE LINE UP RIGHT.!!! HOPE THIS HELP'S YOU .!!! "GOOD LUCK"

Hi danny,

I also replaced the color wheel in my EP739 after the old one disintegrated suddenly. Colours were then all over the place. Actually, it looked like each colour channel was displaying all the colours of the rainbow!

Here is the procedure I used to solve the problem - maybe not as elegant as Marrie's solution, but it will not cause any damage, will most likely solve the problem, and you will be able to get everything back to the way it was if it doesn't work:

1. Have the projector running and displaying a stationary picture. The right sort of picture to use is one that has a full range of brightness values from near-black to peak white. I used my lap-top as the source. Also, this way you can compare the projector's picture with the picture on the lap-top.
2. Press the power button once. "Power off the lamp" dialogue box appears. Hold down the left arrow button until the service menu appears (takes about 8 seconds).
3. Using the up/down arrow buttons, scroll down to "Color Setting" and press "enter".
4. Scroll up to "Color Wheel Index". Make a note of the existing setting for later reference. You can change the Index setting over a range of 100 to 550 by holding down the left/right arrow buttons. As the setting changes, the colour rendition will slowly change, and at some point the colours will come right. Note that the changes are quite slow. Find the lower and higher settings where colour aberrations just start to appear, and set the Index mid-way between.
   
5. If this doesn't fix the problem, return the Index setting to original. My original setting was 354 and the new setting was 461.
   

I do not advise touching any other settings in the service menu unless you have access to a service manual and know what you are doing.

Good luck!
Father Dave

In short If the reds show as red, The greens show as green & Blue shows as blue. I would say thats as good as it can project. It's hard to judge color without seeing it for ones self but usually DLP projectors that use a colorwheel do not have perfect color.

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