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I have a optoma pk201 but there seems to be dust on the inside of the lens or the picture is snowy

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 269 Answers

SOURCE: dust inside lens...

this can be a doozy, but if you are up to it, remove the top cover, you may have to remove the rear, front and maybe sides, i don't know, but what you are after is the cover over the top of the lens. take that off and use air to blow it out--don't touch anything, just blow. several bursts then quickly replace the cover over the lens assy. if used in a dusty environment or ceiling mounted, you may have to do this as needed.

Posted on May 24, 2010

  • 2385 Answers

SOURCE: there is dust inside the lens. how do I clean the

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.

Posted on Nov 27, 2010

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Picture is snowy on most the picture. Cannot see picture because of the white snow.


1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.I supply the DMD chip and the price is USD200
any questions, feel free to contact me
We supply original projector lamp,bulb,accessories,Lcd panel,Lens,DMD chip,color wheel,motherboard,powersupply,ballast... with high quality and competitive price.
have a nice day!
Jerry,Lampdeng Limited

Oct 11, 2013 | Optoma PK301 PICO Pocket Projector...

1 Answer

Skype picture is snowy


Do you have a lot of dust on your webcam? Try dusting it off. If the front part of the webcam is detachable try removing it, maybe a build up of moisture is on the camera lens.
If the above are false, the webcam is probably faulty

Feb 13, 2012 | Logitech Quickcam Chat Webcam

1 Answer

Bubbles are projected on the screen


I am assuming that the "bubbles" are most prominant when the picture is dark. If that is the case, it is most commonly referred to as dust "blobs". Dust particles get on the lens assembly inside the projector and are just out of focus so they appear as blobs or bubbles. If you can carefully remove the cover and gently blow out the lens / color wheel area with compressed air it should reduce the "bubble" effect. I would not recomend any further dissasembly as it is complex and time consuming and unless your very careful, could end in disaster. Don't forget to clean the air filters either.

Aug 03, 2011 | Optoma EP721 Projector

2 Answers

I have optoma pk301 pico projector. suddenly few white spots have appeared on screen which do not go away


Hello, I have the same problem with a pico 201, and can not solve it, I can not contact optoma support team

Jul 27, 2011 | Optoma PK201 PICO Pocket Projector...

1 Answer

Dust inside lens


this can be a doozy, but if you are up to it, remove the top cover, you may have to remove the rear, front and maybe sides, i don't know, but what you are after is the cover over the top of the lens. take that off and use air to blow it out--don't touch anything, just blow. several bursts then quickly replace the cover over the lens assy. if used in a dusty environment or ceiling mounted, you may have to do this as needed.

May 20, 2010 | Optoma HD65 DLP Projector

1 Answer

Hair inside optoma hd70 lense


I had an issue with "dust blobs" on my HD70 and was unable to locate instructions or a tutorial on how to remove them. I figured maybe this could help you if the hair is located within the same location as the dust. Please check out my blog at http://tantht.blogspot.com/ for instructions on how to remove dust blobs from a HD70 as this process worked perfect for me and I no longer have these annoying spots when watching movies!!

Jan 26, 2009 | Optoma HD70 DLP Projector

1 Answer

My projector Benq pb6200 needs cleaning from the inside how???


I have an Optoma EzPro 737 DLP projector that accumulated dust inside the lens and for ages I couldn't figure out how to get rid of it. It cast shadows onto the picture and scattered light outside the edges of the picture. I thought I'd have to dismantle the whole lens assembly (then realised that this is virtually impossible without being an expert). I then stumbled upon a little black rubbery plastic panel on the side of the light path, which unclips. I then realised that the dust had built up on the lens that sits in front of the DMD chip (the thing that makes the picture).

Here's what I did, with the case open and having vaccuumed out all the dusty parts of the projector to avoid making the situation worse:
- Took off the little rubbery panel,
- Removed the lamp from the projector and placed a flashlight inside, shining into the light path (or a mirror directing light from a table lamp above)
- Looking directly into the lens from close up, you should be able to see the particles of dust stuck to the inner lens (with a nice magnified view)
- First tried blowing air into the gap on the side of the light path (I used a balloon pump).
- Next, I poked a piece of thick nylon fishing line into the hole so that it could touch the surface of the inner lens.
- While looking into the lens, I could see the tip of the nylon, then directed it to the largest dust particles and used it to scrape them off (nylon is much softer than glass, so won't scratch the lens).
- This was quite time consuming but I got rid of the most obvious bits.

I'm not sure how different this would be for another model of projector - but I hope it helps!

Dec 16, 2007 | BenQ (200NSH-LAMP) Projector Lamp for...

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