Hi,

After installing onto the ceiling and basic calibration everything seem ok accept when use the all white test patter notice half screen bluish and the half redish.

May I know which adjustment to correct this and which test pattern to use.

Thanks

Look in the uniformity menu. Enter into service mode, scoll down the menu squares on the left. Uniformity is the next to last one. There are adjustments there for both brightness and color. For a pattern, I used the 80IRE field from DVE. The fields cover the whole screen and can be found in the program menu under system evaluation.