Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Where is color wheel?

I have cleaned the mirrors and lens but can't find the color wheel,cleaning the above really helped with removing the dust but the skin tones and the grass is more brown than green.

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Color wheel is inside optics engine don't think it can be cleaned

Posted on Feb 03, 2009

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Remove tv screen from hitachi projection tv


The entire screen unit can be removed but first remove rear cover and look at the lens--clean with a lens cloth etc----peek up inside and look at the mirror--if not dirty or smudged just clean the lens.

removing the screen with its frame can be tricky--easy to damage the screens etc. Removal usually requires front speaker grill to be removed first---most just pull off but a few are secured from rear by some screws.

With it off look to see if at bottom of screen there are a row of screws--if the entire front unit can be removed it will pull out at bottom and be snapped in place.

A better suggestion is look at rear of set above back cover--if the upper part is plastic--it with the back removed can also be removed--careful as mirror is bolted into it---that way you can clean the mirror and get at the lens for the tubes without trying to remove screen unit--some of the smaller sets this is the ONLY way to get at the mirror.

Yes a number of screws but if plastic upper rear comes out with mirror much easier and safer way.

May 29, 2012 | Televison & Video

2 Answers

Print Quality Issue In magenta color in HP color laserjet cp3505n i hv to change cratridge but problem not resolve Pleae help us


I received a similar HP Laserjet Color Printer with same issue for repair/ maintenance a few months back.
Actually the problem is with the printer design not the magenta cartridge and it needs professional hands for servicing and cleaning. The mirrors which reflect laser beam get covered with dust and toner. hence the image is not produced properly. note that first magenta goes off, followed by yellow, then cyan and lastly black. this is because of the mirrors placement inside the printer.

Rest assure that the printer requires ONLY CLEANING OF THE MIRRORS, which are inside the printer.

Clean them yourself with dry n soft cloth (if you are familar with such tasks) or get it cleaned by any printer repair/ service professional. Please note that the mirrors, lenses and scanner assembly inside such printers is extremely complex and can get damaged very easily especially the mirrors.

Hope it would help, looking forward

Nov 02, 2010 | HP COLOR LASERJET CP 3505 N PRINTER

2 Answers

Mitsubishi wd 62527 has very dark picture changed


Clean the small front projection mirror. That mirror can get dust on it and will cause the projected image to appear dull and dim and cleaning that mirror will usually restore the brightness and crisp details in the image.

Oct 20, 2010 | Mitsubishi WD-62725 62" Rear Projection...

1 Answer

The projector turns on to a blue screen for about 5 seconds and then switches to the red light bulb dot. i heard there could be a problem with the color wheel from someone?


When the color wheel starts to go out, what happens is the picture will usually be very faint and pulsate with no color (just black and white). This will last for about 10 to 20 secs then the projector will shut off. If you have a clear picture then it could be your lamp. Need more info. Does the projector shut off after the red light appears? Also you can pull the lamp out and clean the contacts with electrical contact cleaner which can be bought online or at your local radio shack. Pick up some denatured alcohol while you are there. While your lamp is out, use compressed air to blow out dust and debris from the fans and color wheel. You can clean one side of the color wheel very easily while the lamp is out. Use a q-tip with the denatured alcohol. Wipe from the middle towards the outer part gently. If you do it at a slight angle you can turn the wheel while you clean it. To clean the other side requires removal of the outer casing. Make sure your lens is clean as well. Use the compressed air to remove dust/debris from it. If you notice smudges on the lens, you can clean it with the denatured alcohol. Do not use any other type of cleaner on it and use a very soft cloth, preferably one made for cleaning plastic eye glasses. Be very gentle as the lens can easily be scratched. A build up on the lens can cause the error you described as well. If you are able to get into the menu, check and make sure your lamp hours are not maxed out. If they are reset the counter.

Oct 14, 2010 | Optoma HD65 DLP Projector

1 Answer

LEFT SIDE OF PICTURE IS BLURRY AND COLORS DISTORTED


Does that set have whats called a color wheel, if so that maybe you problem, and replacement is how you fix it.

Apr 30, 2010 | Toshiba TP43H95 43" Rear Projection...

2 Answers

Need to clean the bulb to make picture clearer is this possible?


Because of age of use, dust covers the PRT lens (Red, Green and Blue) and Mirror as well. You can clean them with a soft cloth, with care. It is easier if you can remove the Screen (front side) but it is kind of complicated. The easier option in most of the Rear Projection TVs is to remove the lower cover and check if you have access to Lens and Mirror. Avoid excessive pressure in lens and specially with the mirror while cleaning is made. This process can make the picture clearer, specially if dust is excessive.

Mar 11, 2010 | Philips 60PP9202 60" Rear Projection...

2 Answers

Mitsubishi WD-62527 replacement lamp install and brightness low


as i previously posted, my picture was dim, muddy looking after replacing lamp with osram lamp. i fixed mine by taking the screen off and cleaning the small mirror. it had a thick layer of dust on it, cleaned with a microfiber cloth. no water, no glass cleaners. i also used a very fine new small paint brush and dusted the projector lens which also had a dust film. brightness, contrast and clarity returned!

Dec 23, 2008 | Mitsubishi WD-62725 62" Rear Projection...

3 Answers

Picture fuzzy on dark scenes


Well I finally had the TV picked up by a Toshiba recommended repair place and they are saying that it is a bad Optical Block, also known as the Light Engine. Total for pick up, parts and repairs is $827.00. This seems ridiculous to me when brand new TVs are so much cheaper now. I don't think I will pay that much to have this one fixed.

Dec 01, 2007 | Toshiba 52HM95 52" HDTV Projection...

1 Answer

Cleaning interior viewfinder lens?


try to use an air spray for dust. get the lens off and clean above the miror. with the air spray the dust will disapear. dont use air pumps becose u mes it up. and dont use compreset air from regular compresor, u will get oil on your lenses.

Nov 18, 2007 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

Mirror


There is black insulating foam that surrounds the projector and it may be displaced to one side.This leaves about an 1 inch opening around the projector lens and that could be the source of the problem,dust being blown into the compartment with the mirrors.
Cleaned the mirrors really well and used double stick tape to reattach the foam to the plastic frame and this will closed off the opening that maybe letting the dust into the mirrored area of the TV.

Nov 12, 2007 | Mitsubishi WD-62327 62" Rear Projection...

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