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Re: cleaning tv screen
Pledge has a solvent (maybe kerosene) that can damage plastics. I think it warns of use on plastic on the can.
You may be able to buff the area with a plastics polish that is used on fiberglass tubs and showers.
Try a small area first-
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My ILO TV has a source selection that can select where the signal input is coming from that I want to display. Do you have the sat hooked up to an HDMI input? If so try selecting that. If you do have the option of using HDMI - buy a cable and hook it up between the sat (assuming it does support hdmi) and the ILO (mine does, and it about 5 years old). This is the least problematic way to make it work. The Poodle Guy!
if you can take the screen out , then use some dish soap,rag and water to clean the black blotch
if that don't work you may need to use something a little stronger , but not enough to hurt the screen
please rate a fixya and I'll be happy to assist you in the cleaning process and care of the screen
This is probably caused by dust, either on the mirror, lens, or possibly inside the light engine. There is a 5" dia hole on the side of the back of the tv where you can take out one screw and take the door off. this is just big enough for you to put your hand through to clean the mirror and lens. Hope this helps.
usually these are caused by cleaning the screen with a damp cloth or fkuid rear projection tv's usually have two plastic screens separated by about quarter inch with bulbs between,one being a magnified screen.problem is,condensation can occur causing various blotches,letting the screens naturly dry out usually solves this but failing this you have to strip down and wipe them with clean dry cloth.be careful though the inside screen is very delicate.
take the screen off by unscrewing all screws around back of tv. remove panel with a sticker that says " no user serviceable parts inside" remove both screws on each side of screen at bottom with black tabs. there will be 2 screws behind the panel with the sticker on it and unplug the front panel buttons connector. then clean the small mirror with very soft cloth maybe nice cotton t-shirt. be very careful not to scratch the face of the mirror. i would recommend ussing just the cloth but have found isopropyl alcohol to work well if you need to use any liquid.
if the tv has never been service before you could have dust on the 3 tubes,this will decrease the brightness to the screen. try taking the front or back off & see if you can see the top of the picture tubes. remember to unplug the tv & to clean spray the cleaner on the colth , then clean the tup of the tube. never spary on the tube itself. hope this works for you. to remove the screens remove the front grill, then remove the screws @! the bottom of the screen & if i remember right the top just sits on a lip, so gently try to lift the screen up.careful, these screens are expensive & you will have 2 or 3 of them. some of them are really easy to scratch.