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If its dirt, soap and water or isopropal alcohol, works fine.
If it doesn't wash away some one has pushed too hard in this area and ruptured the LCD.
Another thought is to watch the spot and start tapping the plastic top of the TV right over
"The Grayish Spot" if you see "The Grayish Spot" start to move down ward it's debris its fixable you just need access to a clean room All of the LCD mfg have a debris problem the best LCD panel is NEC then Toshiba
White dots on a DLP mean that some of the tiny mirrors on the DMD board have failed and are stuck in the on posisiton and always reflecting the white light from the lamp. The DMD on this model is not available sepratley so the complete light engine needs to be replaced. The part number for the light engine is 75006693.
With a conventional projection type screen on CRT type televisions this is not a problem,but with the newer DLP type screens the fiber of the Fresnal screen acts like a spounge and soaks up any liquid introduced.If you try to clean it it will smear and make it worse.You can remove the screen assy an clean it with Windex but allow it to dry properly.I do not see a problem with cleaning this screen,but make sure you put the screens back the way they were.I must also note that it is no easy task removing this particular screen assy.Good luck
This is a wild guess, but I believe that you are being **** by the movie industry. The HDMI protocol includes a form of DRM (Digital Rights Management) for high resolution content called:
High Bandwidth Digital Content Protection
Basically this means that the media (disk or broadcast) instructs the player (in your case the cable box) to insist that any downstream devices (your TV) is industry and DRM compliant.
Specifically this evil protection scheme is designed to plug the analog hole and make it impossible for you to record or copy the movie by using an analog output from your TV.
This even restricts the size of the TV you can play the movie on,
thus preventing pubs and bars from displaying the content on big screen TVs without paying royalties.
The message means that the manufacturer of your TV has refused to toe the industry line.
1984 Anyone ?
shadows at the bottom of the screen sound like moisture that was "wicked up" between the screen layers and dryed out leaving a stain. DO NOT get these screens wet, use nothing but a damp soft cloth; just a few drops of water running down the screen can cause a fairly large stain. Some people have suggested that they may be professionally cleaned, but the risk of damage is too great on the user level.