What's best for cleaning a Projection TV screen filter? There seems to be something on the inside part of the screen. I've removed it but I want to make sure I use an appropriate substance, that would damage the screen.
(Phillip Magnavox rear projection TV model 9P5540).
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I would not use any kind of chemicals on the screens, I definitely would not use any liquids on anything besides the screen protector, the inside screen is a Fresnel lens and will wick up moisture, the one with the vertical grooves is the Lenticular and either one will leave a mark, if you have to use liqud, I would try distilled water, but no guarrantees you will get it clean. I usually end up replacing the screens. Looking at your post you said filter, do you mean an air filter? I dont think these sets us an air filter, if it was just dust a t-shirt or microfiber towel usually work, the towel being my choice.
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This is usually due to a leaking CRT. Or picture tube oxidation in the cooling liquid. Definatly not a job to be performed in the home. The cooling liquid needs to be changed in all three picture tubes. Cleaned inside the jugs and replacement gaskets. Gennerally about 60 to 85 dollars each. often, the fluid leaks onto the power supply or sweep module and causes other problems.
No one seems to know what they are talking about when it comes to this issue. I had the same problem for a couple of months. I looked up and down the internet for answers and manuals and came out empty handed. I didnt want to pay a repair guy so i decided to take on this filter problem myself. The OSD should say Projector Fan Filter Unit Needs Cleaning. The fan filter unit they are talking about is on the projector itself. That means you have to remove the back panel. I placed the tv on a blanket screen side down. Revome the board inside the stainless case and remove the projector unit. You have to unplug a few cables...thin gauge wires so be careful. Underneith and on the side of the projector are two foam filters. I vacuumed the heck out of them and its been working fine. You could try getting away with removing the front panel to the right of the lamp. you will see the small foam filter to the left of the projector but there is another one under the projector. Try vacuuming the best you can. My tv was pretty dusty inside so I'm glad to dug in a little deeper.
Hi, Your TV requires service and cleaning of screen, mirror and 3 lenses (of CRTs) as looks dusty. Below is an exploded view how to take off front beznet assembly of this TV to clean inside with moist cotton cloth. Unplug TV before taking off front of TV.
That stuff is the best you'll find. Ever.
You'll need to take your TV apart to access the inside of the TV. Take the speaker grille off and possibly assembly frame surrounding the TV(They usually snap off) you should find screws under that to further assist with disassembly.