Question about Mitsubishi Diamond WD-65831 65" Projection HDTV

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Blotches on screen.

I recently changed bulbs hopeing it would resolve the issue. It has not. There is one prominate greenish blotch about 1" in diamiter just left of center, then several faint dark in the upper right corner. What could be causing this if not the bulb?

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  • 301 Answers

Suspect the optical engine. are they present after initial turn off before the blinking light comes on and the cooling process starts? if so then it will be optical engine issue. can be very pricey by the way

Posted on Mar 29, 2008

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Hp pavilion dx6 laptop screen. there's blotches on the center of screen, is it the screen itself or something wrong in the video card?


If the blotches never move when you change applications, then the screen is faulty. Screens can be found online and you might be able to find a You Tube video showing you how to change it. Just google replacement laptop screens and you'll find many places to get a new one.

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I have green blotches on my Hitachi 42V710


Hello, I would take it to a TV repair place, they will charge around $50 and let you know what the problem is with it. this is your cheapest way out, it you want to keep it. If you chose to take it please give me a fixya rateing. Thanks, Farren

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Panasonic DLP TV has huge yellow blotch covering most of the screen


SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.

You have a damaged light engine.

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KF-50WE610 blotch of color on screen


Either dust/dirt inside (unlikely but possible) or a damaged optical light engine--Google the model number with "problems" etc.

Apr 17, 2012 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

I have yellow and purple blotches on screen


I had this same problem on my Mitsubishi rear projection WD52527 model television. The optic engine was changed twice, and the blotches were still there. It turned out that it was the mirror inside the television that was causing the purple blotches. It was filthy and once the repairman took it out and cleaned it the discolorations were gone. Hope this helps
emmilinna

Oct 16, 2009 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Faint red blotches visible on light backgrounds on Sony KDF-42WE6


Convergence issues usually present as colors not lining up or a sort of "3D" effect like when you had to wear the green and red glasses. I'm no expert but it sound like you may have a magnetizing issue. You can test this by placing a large, very strong magnet on the "blotchy" area.

Slowly move the magnet in an ever widening circle. Pull the magnet back off the screen about an inch once you have circled the entire blotch but continue to rotate the magnet. Do this for about 5 minutes. If you don't see any change once you may need a stronger magnet or this is not the problem.

I had the same problem with a 6 year old Toshiba 50H13 and I found this tip online somewhere. I used a half dollar sized, rare earth magnet. I noticed a change almost immediately.

Hope this helps

Will Banks

Apr 02, 2009 | Toshiba 50H81 50" Rear Projection...

1 Answer

Dark Blotch on rear projection TV screen


usually these are caused by cleaning the screen with a damp cloth or fkuid rear projection tv's usually have two plastic screens separated by about quarter inch with bulbs between,one being a magnified screen.problem is,condensation can occur causing various blotches,letting the screens naturly dry out usually solves this but failing this you have to strip down and wipe them with clean dry cloth.be careful though the inside screen is very delicate.

Feb 21, 2008 | Televison & Video

2 Answers

Dark blotches behind the screen


When I had this problem with my 52525 I cleaned the bulb with a lint free cloth. The dark blotches went away.

Dec 28, 2007 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Purple blotches


Ok, so I'm about to flip a lid with my TV. I am showing purple quater sized blotches all over my screen. I bought it for a discounted price because of this issue, in hopes i could fix it. I took the back panel off the TV. ( about a 6in * 6 in plate) removed the light bulb and cleaned the bulb and lens, where the light bulb faced. I used a dust cleaner and special cloth. NOTHING! I took the entire front screen off cleaned it and then cleaned the mirror and second lens.... NOTHING! Then i heard that dusk sometimes gathers behind the lens and that should be cleaned. Try this, Its 4 screws, just be careful and remember the way you took it out, because it has to be replaced the same way.

Lindsey <3 AZ

Nov 28, 2007 | Epson Livingstation LS57P2 57" Rear...

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