Question about Sanyo PLC-SW30 Multimedia Projector

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At the top of my projector image there are a series of blue dots

The pattern of the dots is almost like a smudge but it is not on the lens. The dots/pattern are digitized so it is something inside the projector.

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You need to clean the mirrors inside your projector, you can either open the shell and use compressed air, but i will recomende u to go to someone who works with things like that. Its cheap to clean a projector by a pro, it takes a pro about 10-15 minits to do it.

If u gona use compressed air, make sure u biy air special for elecronics and nevere ever hold it near the mirrors.

Good luck!

Posted on Dec 02, 2008

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Posted on Jan 02, 2017

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I'm having many dots on the top left corner on my display from the projector


Check the film you are using ,you will find small dots scratched on several frames, they are used as markers to change from one projector to another. they can be covered over with a filler. If the dots are there all the time you may have something on the lens.

Nov 12, 2014 | Office Equipment & Supplies

1 Answer

Cleaning dust from inside of lens of NEC NP 100


I would try not to touch it much. Having a single smudge or finger print on the lens will look bad on the picture. just use a blow air can or blow on it. If need get a mico fiber cloth.

Feb 01, 2014 | NEC NP-1000 Projector

1 Answer

My projector has little white dots that appear on a black or dark background, I've replaced the bulb and still have the same issue.I've read someone say the something about cleaning the light engine, is...


Take off the front bezel, then remove the screws from the lens,pull the lens out and blow it out with compressed air. Do not touch the mirror or magnifier inside. If this doesn't get all of the blemishes, then you will have to remove the top cover and then the top silver part of the engine and blow it out from the top.

Apr 26, 2010 | InFocus IN24 Multimedia Projector

1 Answer

?Smudge on lens maybe? Shows up in pictures.


Hi!
Does the smudge changes / mooves as you zoom the lens? If so, the smudge is most likely on the focus lens, if not, there's something on the CCD. In both cases the lens will have to be taken apart and cleaned by a professional. I suggest you contact a local repair shop and see how much they ask for it.

Tom

Oct 09, 2009 | Canon PowerShot SD780 IS / IXUS 100 IS...

1 Answer

Have two dark smudges on screen


Dear Chaplink,

You said "two dark smudges on monitor screen".

Asumming that these smudges are digital and not just something tata you can remove with cleaner, If your moniter is back-projecting then the issue is probably that the projector has been damaged.

If your monitor is a flat-screen then the gels inside of it are misplaced from somone touching and damaging your screen.

So basically, the only practical thing you can do is buy a new monitor.

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If i have been helpful, then please give me a positive rating.

Jul 04, 2009 | NEC MultiSync LCD2170NX-BK - flat panel...

1 Answer

Dots on projector screen.


if the dots are pixelated, you have an lcd issue (or if you have a dlp, it's a dmd issue). if it's not pixelated, try to focus the lens on them. if you can, it's dust. blow it out with canned air.

Aug 22, 2008 | Office Equipment & Supplies

1 Answer

2 ISSUES: 1) Pencil tip size dot in the middle of the projection. 2) weird smell coming from projector vent.


might be a speck of dirt on your lens, possibly on the inside. I assume youe have wiped the outside of the lens? ;-) (I have to ask) If the dot seems to be following pixels exactly your projector might be broken. The smell might be from some dirt or possible an insect in the projector. Try using compressed air to blow out any dirt and dust. It might just be dirt acumulated over time that is burning to create the smell. t t might be a long shot, but if the bulb is easily removed, yo ou might try to shine a flashlight through the lens to see if there is dirt on the lens inside. If you adjust the image size mechanically, or use lens shift, does the speck move on the picture? If so, it's probably on the lens.

May 17, 2007 | InFocus ScreenPlay 5700 Multimedia...

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