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I want to clean the mirrors on my Mitsubishi 60737 TV. How do I access the mirrors to clean them. I have a fuzzy halo effect around the edges of the picture. Thanks!

Posted by Anonymous on

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 150 Answers

SOURCE: Location of MIrrors in projection tv

wd-52525 This is a DLP, I dont suggest taking it apart to clean anything, this is what we call a MICRO display, the imaging device is about 1" square and blown up 50X to the size of the pix you watch, anytime anyone I know has taken stuff appart where the mirror is at has ended up worse off, you say that there is dust on the mirror, what does it look like in your picture? If the spots are quarter size or so and fuzzy edges the dust is inside the lightengine and you want a factory cleanroom to service the LE, the one thing I think you can safely do is pull the lamp and check for dust on it as it can cause issues in pix, other than that I dunno what to tell you, hope this info helps.

Posted on Jul 09, 2007

  • 1 Answer

SOURCE: Green "halo" around the bright white images

I have a Samsung HCM5535W rear projection TV that had pretty much the exact same problem-- a green halo around bright white images. I researched it on the net, and determined the most likely problem was with the convergence STK-ICs, or the convergence board. I bought a replacement board with the STK ICs and installed it, but no luck, the problem persisted. I decided to mess with the manual focus adjustment on the green crt (i was seeing a green halo), and that fixed it. As it turns out, no replacement parts were necessary to fix the problem in the first place. Hope this helps somebody out there.

Posted on Feb 07, 2008

SOURCE: Cleaning the bulbs and mirror on my Mitsubishi 55" WS-55313 TV.

You should re-consider having a tech do that for you. The access is by removing the screen assmbly which are somewhat fragile. If you want to give it a try, pull the speaker grill off, it comes off just from pulling it, there should be five screws across the bottom of the screen assy, remove those, there is also an access door on the front of the set with four screws, that has to be removed to unplug the cable that goes to the screen sensors. The screen assy has to be lifted straight up an inch or two and then you can pull it forward away from the set.
As far as cleaning the mirror and lenses, you can't get to the face of the tubes so it's the top of the lenses that you clean, just use a soft lint free cloth (cloth baby diaper) and wipe the dust off the lenses, you can slightly dampen the cloth with water if necessary, same type of cloth on the mirror and you can use a glass cleaner on it just don't press too hard on the mirror.

Posted on Feb 05, 2009

Ecollier2012
  • 3459 Answers

SOURCE: My panasonic big screen screen has shadows and fuzzy picture

Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Posted on Mar 26, 2009

SOURCE: Mitsubishi 50 inch projection tv

you probably have a problem with the convergence board.

Posted on Apr 05, 2009

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Hm Code 12 is "no error". Which is odd since you have an error.

However, since the age of the TV is around 7 years, you may have the problem that the power supply is known for. The capacitors in the power supply fail.

To be safe, check the lamp and make sure its in good order. May want to change it anyway if its more than a year or 2.

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A few things occur to me, if Lamp not recently replaced (2year average life) it may be nearing the end of its life.

Just a few models (not sure if this is one) use two mirrors where most just have one large mirror.

If the issue was gradual you may have the two mirror set, one tiny mirror at bottom of screen area points up and reflects the image into the large mirror in the back of the set which puts it on the screen to view.

If your model has the two mirrors the little one will be coated with dust and such and cuts brightness up to 70%

You can call Mitsubishi and ask if your model has two mirrors or one, if Two mirrors and they will not tell you how to get at them I can.

Let me know if you need more help.

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Try cleaning your 3 CRT's and mirror for dust, worse thing is if coolant causes this, need to change. Expert needed to do the job. Hope this helps

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I think your refering to the CRT colant needing to be changed if it has a halo effect on the blue and green colors Also some times your picture can get dingy because the mirror gets dull. Try cleaning the mirror and tube lenses. Use a damp soft cloth on the mirror and lenses not windex.

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I have the same TV, and I was getting the black spots on my screen as well. It is dust settling on the bottom mirror. Yoiu can call Mitsubishi and spend 150-200 on getting it cleaned, or you can do like I did and take the front panel off and the 10 screws around the edge on the back of the black plastic border around the screen. Then lift up gently and have someone hold the screen for you and gently dust the bottom mirror. I did this by myself, but it would be wise to have 2 people do it.

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Green "halo" around the bright white images


I have a Samsung HCM5535W rear projection TV that had pretty much the exact same problem-- a green halo around bright white images. I researched it on the net, and determined the most likely problem was with the convergence STK-ICs, or the convergence board. I bought a replacement board with the STK ICs and installed it, but no luck, the problem persisted. I decided to mess with the manual focus adjustment on the green crt (i was seeing a green halo), and that fixed it. As it turns out, no replacement parts were necessary to fix the problem in the first place. Hope this helps somebody out there.

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Location of MIrrors in projection tv


wd-52525 This is a DLP, I dont suggest taking it apart to clean anything, this is what we call a MICRO display, the imaging device is about 1" square and blown up 50X to the size of the pix you watch, anytime anyone I know has taken stuff appart where the mirror is at has ended up worse off, you say that there is dust on the mirror, what does it look like in your picture? If the spots are quarter size or so and fuzzy edges the dust is inside the lightengine and you want a factory cleanroom to service the LE, the one thing I think you can safely do is pull the lamp and check for dust on it as it can cause issues in pix, other than that I dunno what to tell you, hope this info helps.

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