Question about RCA D61W20 61" Rear Projection Television

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What is the liquid inside the projector lenses?

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Some lenses use an oil-like coolant or focusing aid.
Your lenses are called Intelifocus.
Hopes this helps some:)
Farmerbear

Posted on Aug 30, 2010

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How do I clean the inside of the lens on my wonderwall 1625073 projector


It is recommended only cleaning the outside of most projector lenses. However if obstructions have worked their way into the case and will not leave the lens, you may be able to remove the bulb (carefully, following the manuals instructions for bulb replacement)
And gently spray inside towards the lens where the bulb was. However, keep in mind the display itself sits between the bulb and the lenses,
Some projectors have air fins along the sides of the lens, some air in these fins can also loosen debris away from the lens.
Ensure the front of the lens is not dirty and that the focus has been properly adjusted before cleaning the back of the lens.

Nov 28, 2014 | Office Equipment & Supplies

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How can i fix the problem of white spot screen


This is a dlp projector and has a bad DMD chip. Most models are very similar. Here is a video of a similar repair.

Apr 25, 2014 | Sharp XR50S Projector

1 Answer

How do we clean the dust from inside the lense?


Hello
It is actually a very skilled job. You have to disassemble the lens assemble as a whole to clean it. There is a special type of liquid, uses for camera lens claning. It can be bought from most of the camera selling showrooms. But, if you are intented to do this work by yoursef, you have all the small to very small type star and plus point screwdrivers, that watch repair persons have. Just see, this is not a simple jpob as you thinks. If you have skill, patience, and some knoledge about the internal fittings of the lens assembly, you can do it by yourself. OK.

Nov 26, 2011 | Mitsubishi XL4U Multimedia Projector

1 Answer

Hi folks! I have a Viewsonic PJ400 projector. He


Which "lenses" did you clean inside the unit. It would seem that you have misalignment of the lcd panels or the phase setting may need adjusting. What input are you using and what vertical frequency is the signal using?

Jun 30, 2011 | Office Equipment & Supplies

1 Answer

How can i fix the yellow spot that comes up in the middle of the screen and when there is no video connected i see a blue screen


Yellow spot is mainly due to lense stain , so clean your lense from inside. it will solve your problem.

I think it helps. let me know.

Dec 28, 2010 | 3M X75 Multimedia Projector

2 Answers

My unit seems to work fine, except there is a dark shadow covering the right third of the projected image. Is this a sign that the bulb is going out?


this is the light tunnel needing to be adjusted or replaced because is has collasped due to the heat given off by the lamp during the life of the projector.

Aug 27, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

How to Clean the lense on a Infocus LP280


outside- lint-free microfiber cloth and canned air. inside (projector)- canned air.

Nov 09, 2009 | InFocus LP280 Projector, Factory...

1 Answer

NEC VT 480, replaced new lamp ,still low brightness.


if you remove the lamp, inside the lamp housing you will see a refraction (fly-eye) lens. these evenly distribute the lamp light. the one on the other side from the one you see (there are always 2 lenses) is probably burnt and needs replacing (a common problem with lcd projectors). you will have to send it in to nec. in many of their projectors, both lenses are in one assembly.

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