Question about Toshiba 46H84 46" Rear Projection HDTV-Ready Television

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Liquid behind the screen

My daughter sprayed fruit cleaning spray on the screen and it got behind it. There must be two layers to the screen because there is liquid behind the front screen. When I peak behind the screen I can't clean it and I cant' get the whole thing off. Any ideas on how to fix?

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Re: Liquid behind the screen

Actually, I had the same thing happen to me. I was considering taking the unit in to have it serviced, however, after a few days the liquid finally evaporated. I live in AZ, where it is dry ... I guess it helps.

Posted on Jan 29, 2008

Re: Liquid behind the screen

Put a hair drier on low at the source of the problem, that should fix it.

Posted on Feb 10, 2007

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My room mate spilled his drink and a little went on the bottom left corner. i dried up as much as possible, but now there is a dark shadow spot on the screen in the bottom left. how do i remove the screen...

liquid is never good on those screens-
there are 3 layers to the screen, from inside out, a fresnel screen (etched circle pattern), a lenticular screen (ridge lines top to bottom), and a protective screen ( "Diamond Shield" tinted plexiglass).

the fluid will wick up btween these layers, turn black, then very very slowly recede leaving a waterline mark. It can take months for it to become un-noticeable.

cleaning is possible, but beware, any type of cleaning fluid or spray is going to simulate the exact same problem but to a larger area.
also introducing dust, lint or hair into the layers when separated is almost impossible to avoid.

these pieces, especially the lenticular screen are extremely fragile nylon plastic and is apt to split under its own weight when handling, so beware the project you are about to get involved in...considering the large size.

but it can be done.
Remove all screws around the screen frame from the back of TV and the lower sides. There will be a wiring harness that goes to front buttons- disconnect it. The whole assembly will come off the front of the TV.
Lay it on the floor face down. Remove the screws in around the inside of the screen. The screens are now ready to lift out, one at a time.
IT IS IMPORTANT to not attempt this by yourself. The screen are fragile and large and scratch so easily which appear as a white opaque area when reassembled. Have a helper. Wear cotton gloves while handling as finger prints will be noticeable after you reassemble.
ALSO IMPORTANT- these screen are oriented front and other words they go together in a certain direction...on each screen layer there is a small sticker on its outer edge. Make note of its orientation and reassemble accordingly.
Clean with a cotton cloth and very very little "plastic glass gleaner" (if needed only!).
WIPE EXTREMELY GENTLY in the direction of the grooves on each screen layer- much like cleaning an old vinyl record.
The lenticular screen is the biggest worry as rubbing on the grooved side is so likely to cause damage. Perhaps rubbing should be avoided if possible.
Let them lay out and dry before reassembling. A bottle of compressed air is good to remove debris when layering them back together...a dust free environment is recommended.
Reassembly and installation is just the reverse of dis assembly- remember the wiring harness connector!

Apr 13, 2011 | Mitsubishi WD-73733 73" HDTV

2 Answers

Mitsubishi TV Screen Water Stain Problem

You can use warm water and a soft cloth to try and clean it, but it will probably leave some evidence that liquid existed between the two layers at some point. Mitsubishi will deal screens directly to their customers if you ask nice enough and are willing to install yourself.

Jul 05, 2010 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

How do i clean outside hitachi prejection tv screen.

Using a lint free cloth, such as a diaper, and windex (no ammonia), spray the cloth to dampen it and using a swirling motion wipe the screen. Finish with a dry lint free cloth. Never use paper towels, and never spray the screen as the liquid can migrate between the different sections of the screen. Let me know if you need more help.


Thanks for using FixYa and the generous rating.

Mar 06, 2010 | Hitachi 61SDX01B 61" Rear Projection...

2 Answers

What should be used to clean the TV viewing screen

Soft cotton cloth would be fine to clean front screen of TV. Do not use any liquid or detergent in cleaning.

Nov 21, 2009 | Sony KDS-60A3000 60" HDTV

1 Answer

Liquid under screen on mitsudishi dlp tv

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

Jan 17, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Moisture behind screen

It is difficult to clean/remove the screens. Best case senario, it will dry up leaving little to no water mark. There are three screens, liquid gets between them and it sucks it in. Disassembly and cleaning will fix, but the screens are very fragile and cannot be wiped without potential damage. Any dust, dirt between them will show in the picture. Proceed at your own risk.

Sep 04, 2008 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Tv and gum

get a bottle of canned air, about 10 bucks. hold it upside down, and spray the liquid on the gum(despite what the directions tell you to do). gently pell off from one side of the gum, constantly spraying underneath the gum so it stays frozen. follow up with windex, or a normal LCD screen cleaner. Be careful not to get the liquid on your skin, as it can cause 3rd degree burns, and in worst cases, FROSTBITE. Trust me I know(1 Freshmen + 1 bottle canned air X 1 senior = pain for both parties) What this does, is freeze the sugar molecules in the gum from contracting when it is pulled by freezing them to a near sub zero temperature.

Feb 18, 2008 | Projection Televisions

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Liquid in screen

The screen is two separate pieces of plastic. One is a fresnel screen and the other is a lenticular panel. They act together to disperse the light evenly. Yes the front bezel will come off and the screen will come out. But they are taped together with just a slight air gap between them. The windex was wicked up between the two panels by capillary action of the fluid and space between the panels. Trying to take the screens apart would be easy. The problem is the grooves in the two panels are almost microscopic so any attempt to rub them will leave a mark. Plus unless you have some kind of clean room the slight dust particle or hair that gets left in there will stick out like a sign when it is reassembled and turned on. The only hope to try to correct this is to removed the bezel and then the screens but do not separate them. Then wedge some tooth picks in the very bottom of the edge where the stain is being careful not to push the picks up into the viewing range. Then with a spray bottle of just water try to rinse the windex and wick up the water with a wedge of paper towel just inside the edge. The same action that got the water up there will wick it down.Repeat this several times to delute the windex as mush as you can. It may not get it all away completely but it should make it livable. After the last rinse leave the picks in and left the panels air dry before putting everything back together. The most IMPORTANT thing not to do is to lay the panels flat and flex them, this will allow the two grooved panels to chaff one another and they will be destroyed.

Feb 08, 2008 | JVC AV-56P575 56" Rear Projection...

1 Answer

Water behind screen

Did you just sell your TV? Because if you did, I'm probably the one who just bought it. Paid $200. Anyways, if not, I did fix it. I dismantled the TV, starting with the bottom. Pull off the speaker cover then unscrew everything on the bottom in order to loosen the top screen portion. Unscrew the top screen and pull it off slowly, disconnecting the one wire that connects it to the rest of the TV. Once the screen is off, you can seperate from the frame it by unscrewing it. I then cleaned both screens (there are two layers) with distilled water and a microfiber cloth. You might be able to use other cleaning methods but I recommend plenty of water and then a non abrasive cloth. Make sure it's clean and dry before putting it back up. Picture is like new and I love it!

Jan 20, 2008 | Toshiba 51H84 51" Rear Projection...

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