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Re: nec picture turns megenta
I'm gonna take an educated guess and say this is a DLP projector. Sounds like the DLP wheel is slowing down causing blurriness and Magenta when the wheel stops. It probably needs a new color wheel. Call NEC and see if they have a bulletin or notice on this issue. If you're lucky, you might get a free new color wheel or replacement projector from them.
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To come closer to the colprit, if you shoot a picture and you put it on a PC (tablet) does the picture still look blurred? If it does, the most likely is the image sensor or the lens are broke. If the picture is ok on the PC, only the display is bad. Are you sure you don't see anything on the lens? Is perhaps a little dent on the outside visable? That could be caused by a fall with the lens outside the body.
Question is, Is your lens blurred,or are all your pictures blurred? If you can see the front of the lens is really dirty, you could try to clean it with a lens pen. One side has a soft brush to remove the dust and perhaps other debris. Please try to remove debris with a little presuerd air. If only smear is left on the lens, you than can use the other end of a lens pen. It has a very soct pad, with wich you than can remeove smear. If the lens looks ok, please don't touch it. Perhaps you don't take enough time to let the camera focus on the subject. When making a picture, press the shutter release button half, till he AE/AF indicater flashes and you hear a beep, then you can press down and make the picture. If you are making pictures without a steady hand, pictures also can come out blurred. Special when there is little light avalible. Then choise a higher ISO. I hope this helps. You still can fine the manual online.
Have the photo printer run a test/alignment page. Make sure you are not running out of one color. Anytime the image runs heavy on one color typically means another color is empty or low and not blending properly.
You can also check the settings to see if it is printing in Draft/Normal/Best Mode. Depends on the settings and application used to control this. Best uses more ink and of course provides the best image. Photo quality paper if you want the best looking pictures. Printing on standard bond will cause some bleeding and saturate the paper. (Looks feels wet) This will give the image a slight blurring dull look. Depends on the quality of the paper used also. Hope this helps!
If you have a SLR camera you can take your lense off and clean it.. I do not reccoment canned air because if you do not use it the right way liquid will come out. At best buy they have cleaning kits, and in their kit they have a little brush that you can squeeze regular air and brush off anything on the lense or around the lense, If you have a SLR camera you might have a built in cleaning option... SLR means Single Lense Reflex and this means your lense can come off/interchangable..
I had a similar issue with my EP739, the problem would start after about 3 or 4 minutes and then get gradually worse and worse.. The most strange thing I noticed was that white looked fine. And if you opened the configuration menu in the projector it appeared that blue was labeled green and green blue.. Some sites suggested cleaning the machine of dust, which I tried using a can of compressed air... This did not fix the problem at first.. but when I had it apart I studied the colour wheel for a little while and wondered if some how the machine was synching to it incorrectly somehow.. So I blew out the colour wheel location sensor (It's kind of obvious being the only component mechanically connected to the color wheel. Much to my delight, this fixed the problem...
So my solution to the flickering / colour fading / colour swapping issue with DLP projectors was to clean out the dust from the colour wheel location sensor..
In fact, if I did it again, I would ONLY clean the sensor, and leave the rest of the dust alone. Blowing dust around has the potential to cause other issues, especially if it winds up inside the optics system.
You need service. Sounds like the convergence is out of adjustment. As the picture is formed by a tri- gun arrangement (one for each colour), if any of them is not correctly aligned, you will see shadows on any sharp line like text, or blurring on a picture. The shadow or blurring will often be one colour i e. red, blue or green.
The ghosting problem is a combination of both the lcds and driver boards in which case neither need to be truely replaced.. They use a specific voltage to transmit data to the lcds.. Each lcd is different and the driver board is programmed by the factory for the EE v.com setting. Unfortunatly with nec, they do not offer a service mode to go in and adjust the ee settings to correct the electrical convergance. So the only way to fix the problem is to replace the lcd with a newer one who wasnt worn out from long term heat.
The most common reason I've found for picture deterioration with projection TVs is dust build-up on the mirror. Try popping off the trim around the screen and look of several screw and retaining clips and remove them. Now remove the screen - it's just a piece of plastic. Now the mirror should be in plain view. Simply clean it thoroughly with windex and newspaper (you can also clean the back of the projection screen since you have it out). Now replace the screen and see if the picture doesn't look much brighter and clearer. This should be done perhaps every six months as TV generate a lot of static which attracts dust like a magnet. If the picture is blurry after doing this, it's possible to adjust the projector beams (there are three) to better align with the position of the screen, however I'm willing to bet this won't be necessary after the cleaning procedure. It sounds complicated, but trust me, anyone can do this. If you cannot locate any retaining clips on the front, you may have to go in from the back, in which case you'll most likely have to complete remove the mirror to clean it. It's a little more involved than the frontal method, but equally effective. It's also possible that you have a bad projector. When you get the screen off, make sure that each one is lit (the red one always looks dimmer than the green/blue ones). If one is out, try tapping on it, it might just come back to life, you never know. If not, have it replaced (usually around a $200 fix). Hope this helps you, and good luck!