My first projection model had some screws which held the bezel and front on the TV. I need to clean my projection TV but cannot figure out how to remove the front protection screen. This usnit is about 6 years old and I used to clean my old one yearly. By keeping it clean the brightness and definition remains great
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It is either the projection lenses are very dusty or are getting weak.
I would clean the projection lenses and try it.
It has been a while, so bear with me.
The bottom speaker covers should should either have some screws around the edges or just pop off (most are the pop-off kind). Under there, there might be some screws that hold the bezel (that frame around the screen). Remove the screws and remove the bezel. You might have to slide the bezel up to pull it (try bumping up on the lower corners with the heel of your hand).The screen should come off with the bezel (just set it aside and be careful with it). Now the 3 projection lenses(red, blue, and green) and mirror are both exposed. Wipe the dust off the lenses with a damp cloth and follow with a dry cloth. If the big mirror is glass, clean it with a damp cloth (maybe a little glass cleaner) and dry with a clean cloth If it is the foil type mirror, clean it real gently with a damp cloth. The big white plastic lens at the front is cleanable with a clean damp cloth. But unless there is a smoker in the house, I wouldn't mess with it. If you do clean it, be sure to use a circular motion with the pattern on the lens...it scratches easily. Then snap the bezel/lens assembly back on and reassemble the front pieces.
It has been a while since I have cleaned one of these. There may be a few differences in getting into the projection area depending on the models. Since the projection tubes are aimed up , the dust really builds up in them.
Hope this helps and good luck with it.
Unplug the TV for safety - even unplugged, there is enough energy stored in the electronics to be very dangerous. The bottom speaker grill snaps straight off. There are a row of screws under the screen around the screen bezel that must be removed. The bottom of the screen will become loose and the whole screen assembly slides up, like opening a window (there is a bracket under the bezel at the top of the screen that the bezel slides off of.) My screen took a lot of effort to disengage the top bracket - careful not to break anything!!!
Once the screen is off, put it safely aside. There is a mirror in the back that can be cleaned with a damp cloth (not dripping wet!). Remove a little dust at a time and keep washing the cloth out between cleanings. Be very gentle. If you push on the mirror it could break If its never been cleaned there is sure to be a lot of crud.
Below the mirror are three colored lenses. CAREFULLY use a clean lightly damp cloth to wipe each one. Don't mess with any of the adjustment screws and levers on the lenses.
Before putting the screen back on the TV, carefully clean it with a damp cloth too. Slide the screen back over the top bracket, put the screws back in, and pop the speaker grill back on.
Its a good idea to readjust you convergence too.
When I cleaned my set, I was amazed at how bright and sharp the picture was!
Green is missing from the area where you see the pink (actually magenta) spot. This might be due to a large amount of dirt on the green lens. It may be due to damage to the face of the green picture tube. You need to remove the front screen so you can look into the lens and determine that.
Depending on the make and model of TV, the screen may be held on by snap fasteners and come loose when you pull on the plastic bezel surrounding it. Or the bezel may pull off to reveal brackets screwed into the cabinet that secure the screen. Or there may be a trim strip under the screen that pulls off to reveal screws. Remove those and the screen will swing up and off.
Once you can see the lenses, clean them with a soft rag and glass cleaner. With the set on, look down into the lens and you can see the face of the picture tube. If you see a dark spot on the face, the tube is damaged and would need to be replaced
Most rear projection sets the screen will pop off the front. Usually a couple of hidden catches. Get another person for this.
Once off you can clean the mirror but not the inside of the screen.
Unplug tv first
It's been a while since I faced one of these, but I believe the bezel around the screen pulls off to expose the screen mounting screws. As I recall it is held on by snap fasteners. It's also possible there is a snap-on trim strip between the screen bottom edge and the speaker grille. If that's the case, remove that to expose screws securing the bottom of the screen. Once they're out the screen swings up and off. Zenith used a couple of methods on different models.
Take the back bezel off. It should have many screws around it. then once open you should see the back of the mirror. Carefully take the screws out of the mirror, you may have to do some modifing with the new mirror if it does not come prefabed.
Yes you can safely clean tv, just remove front speaker panel and you should see screws holding up front prot. screen. Becareful not to snap screws. You can take screen out and there is a mirror that you can clean and 3 lenses.