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It sounds like there are some magnetic fields around your projector. Similar to what used to be degaussing in an older tube TV. Sometimes it may be that the speakers are to close to the projector or even the earths magnetic field that may be effecting it. Try turning the projector in a different direction and see if that helps your problem.
1,white spots appeared on screen,means the DMD is broken,you need a new DMD. 2,the projector running off after only a few minutes,means the Inductor (Sensing element),near the Color Wheel. Use a cotton swab moistened with alcohol to wipe the Inductor.
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The problem here is the one of the miniature LCD screens in the unit is faulty, in this case its the blue one. There are three of them inside the unit RED<GRN<BLUE. The blue seems to be failing in your unit, for instance if you mix red and green you get yellow. Have a local shop service the unit and clean and refocus the unit back to factory spec's..
we changed out the light buld... now it works fine.. funny thing was projector was brand new just out of box... you could see first thing there was a brown spot in the center of the buld creating the spot apparently after it heated up.... thanks again
there is a burned-in spot on the polerizer light filter for the blue lcd. it makes sure the light is blue coming through, that's why it is black on a blue screen, and yellow when the red and green are the only light showing through. it needs to be replaced. pat # PFiLW0213CEZZ.
There may be a dust fleck on one of the LCD screens inside your projector. I had a similar problem and managed to clean it. But it requires you to dissassemble the entire projector !!!. If you are not technical, don't do this yourself. !!!
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??