Question about Samsung HLP4663W 46" Rear Projection HDTV

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Lens cleaning best way to remove dust on projector lens, can i use any cleaning solutions?

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Do not use any solutions. Use a dry, dust free cloth. If there is something on the lens that is sticky, you can use a drop of Alcohol free cleaner and you must put it on the cloth first. Do not let it run.


Posted on Mar 06, 2009

  • TheScreenGuy Mar 06, 2009

    use a dry, dust free, non-abrasive cloth

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1 Answer

HOW DO YOU CLEAN THE INSIDE LENS?


You probably don't need to. I know you may see what looks like a lot of dust, but unless it's completely covered, that dust on the lens has very little effect on your projected picture. If it is really bad, you can try to open it up and clean the lens with a lint-free lens cleaning tissue (NOT FACIAL TISSUE) and a couple of drops of distilled water (or lens cleaning liquid). But you best bet, if it's really dirty is to take it to a service facility.

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1 Answer

Viewsonic 5132 dust blobs


Most likely your DMD chip has dust or hair on it. You can try blowing it out with compressed air but the best thing is to tear down and clean the dmd chip itself. Very carefully. Here is a video of a similar unit. SO far all the DMD projectors I have worked on have had a very similar set up. Take pictures as you go.
MItsubishi XD206u DLP Projector Lens Assembly Cleaning

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2 Answers

How do I clean the dust off of the inside of Ox Pro projector lens?


Most models are very similar. Here is a video of a similar repair.

Apr 29, 2012 | Office Equipment & Supplies

2 Answers

When projecting the screen has a lot of white dots as though the lens needs cleaning ,the outside of the lens is clean


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

Feb 06, 2011 | Optoma EP727 XGA 2200 lumens DLP...

1 Answer

I can see dust accumulation inside the lens. What can I do to get it removed or cleaned out?


Use an "Air Duster". A can of compressed clean air to blow the dust away.
Available at most electronic supply shops.

Jan 01, 2011 | Panasonic PT-AE700U Multimedia Projector

1 Answer

There is dust inside the lens. how do I clean the dust from inside the lens?


Your projector needs little maintenance. The only thing you need to do on a regular basis is

to keep the lens clean.

Never remove any parts of the projector except the lamp. Contact your dealer if other parts

need replacing.


Cleaning the lens

Clean the lens whenever you notice dirt or dust on the surface.

• Use a canister of compressed air to remove dust.

• If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner

and gently wipe the lens surface.

Never rub the lens with abrasive materials.

Nov 27, 2010 | BenQ MP623 DLP Projector

2 Answers

Im using sanyo pdg-dsu21b model. right now, my projector has this little white bright spot all over the projection. can anyone please tell me whats the problem with my projector and what is the solution...


Unplug you projector and allow the bulb to cool. Open the area where the projector bulb is located. Check the projector lens for any damage and clean it from dirt's and dust. Same as with the bulb.

Nov 09, 2010 | Sanyo PDGDSU21E DLP Projector

2 Answers

Hi there my benq dlp projector is showing white spots on the screen when the screen is black can you help me?


This is caused by dust on the lens assembly. If you can remove the lens, clean the surfaces with a lens cloth. That should resolve the problem. It is possible that the there is dust in the optical pathway inside the unit as well. If the cleaning of the lens does not resolve the problem, the unit should be brought in for a professional cleaning. It is not suggested that anyone open up these units as there are fine adjustments that can be changed internally easily that could result in convergence problems.

Dan

Jan 29, 2010 | BenQ PB6100 Multimedia Projector

1 Answer

Red specks on screen always in the same spot


You can take the projector apart and carefully clean the backside of the lens.

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