Question about NEC MultiSync MT1050 Multimedia Projector

2 Answers

Alignment on the MT1050

The blue "gun" seems to be moving to the left.... How do I get it back in line?

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The red and blue guns of a CRT projector have mounting screws which when loosened allow the two outer guns to swing left/right. The central green gun usually isn't adjustable left/right (another reason to be very accurate when mounting the projector) Up/down mechanical aim is accomplished by altering projector tilt.

Posted on Jul 18, 2008

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You need to take it to a NEC service center or a local professional to get the lcds alinged again.

Posted on Jul 18, 2008

  • Ekse Jul 18, 2008

    you really can't do it yourself without equipment and its very tricky.

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1 Answer

Canon projector shows blue (sometimes yellow) vertical lines on start up, after 10 minutes or so they go away. But lately are staying longer, or appearing randomly. Why, what's the fix ?


Could just be that the thing's getting old and wearing out, I'm afraid. How many hours have you logged on it, and what's its ventilation situation like?

Seems it might be something to do with, if not actual "burn-in", creeping physical misalignment of the internal components (e.g. the R/G/B LCDs no longer entirely line up, so maybe you have the blue one beaming light into the gaps left by red and green - ie yellow), particularly due to heat soaking ... Some types are more susceptible than others... I've a 6 y/o Panasonic that is now relegated to the emergency spares bucket after developing this and other problems, which I did initially managed to fix by popping the lid and doing some deep and experimental imager surgery (basically finding that the adhesive holding one of the LCDs in place was starting to break down and the panel had slid a minute amount off its mountings ... dab of superglue and a lot of trial and error fussing to massage the fine alignment to the right position, and it was somewhat improved, until general bleaching and fade-out did for it a few months later) ... on the other hand there's some 9-ish year old NECs knocking around here that are more or less fresh as daisies. Go figure.

Jan 28, 2014 | Canon Multimedia Projectors

1 Answer

Red color seperating


If you mean the red light is displaying offset from the blue and green then the red LCD panel inside the projector needs to be physically adjusted. If you take the projector apart you'll notice that the light source is split into red, green and blue light by passing through an optical splitter. Each color then passes through it's own LCD panel. Next, each color is joined back together by another light splitter to be projected to your screen. The red LCD panel is misaligned.

Jun 03, 2012 | NEC MultiSync MT1050 Multimedia Projector

1 Answer

Is this a good projector


Yes this is a good projector that you can purchase, here is the complete specs for this unit.

http://www.aboutprojectors.com/NEC-MT1050-projector.html

Jul 14, 2010 | NEC MultiSync MT1050 Multimedia Projector

4 Answers

The projector lamp does not turn on


I have done this on several of our PT-LB50U's with sucess every time.Remove lamp cover and lamp.Then remove top of case by removing 6 screws on bottom.Remove metal shroud that would cover lamp 2 screws and remove 2 screws that hold lamp plug and move it away.You will see a little blue lever for saftey switch move it back and forth from top and bottom put back together and should turn on.

Jan 03, 2009 | Panasonic PT-LB50U Multimedia Projector

1 Answer

It's on, then it's off


Is the fan running properly or are any vents blocked?
Sounds like it is overheating.

Feb 15, 2008 | NEC MultiSync MT1050 Multimedia Projector

1 Answer

Alignment (convergence) of color panels MT1050


I can assist you with that if you want. It is very tedious, but can be done. You need a cross hatch pattern generator or something with vertical and horizontal lines to lineup the LCD Panels again. Tricky little procedure if your not familiar with it. Let me know if i can assist you and hopefully save you agravation at the same time. Thanks Jay

Jan 12, 2008 | NEC MultiSync MT1050 Multimedia Projector

3 Answers

NEC MT1050 pojector


I believe this indicates a lamp failure. Make sure the lamp is seated correctly. If you haven't checked, take the lamp out and look at it. I left off a connector (the yellow wire I think) once when reassembling an mt1050 and had what I believe was the same indications. If you have taken the projector apart double check that all the wires are reconnected. Other than that I'm not sure.

Nov 12, 2007 | NEC MultiSync MT1050 Multimedia Projector

1 Answer

Center adjust on Red gun is not aligning with B&G vert.


frist set blue and green than set red itwill shoew yu single chakall will be focous in single line than than gun will be allign horizontal if it will correct if itisnot comming than cathode problem.

Oct 06, 2007 | Sony VPH D50HTU Multimedia Projector

1 Answer

Color alignment is off


i also have the exact same problem. i picked up 3 of these used for my work and kept one at home. I knew one had issues and another had a burned out bulb and so on. I had a repair place to combine the two to make one good one. The repair man said that they had a real hard time keeping the color locked in alignment. It's not a physical alignment, its controlled by the board output and somehow the board can be adjusted. It was vague to me. After about a good couple of years of hard use the one at home is now doing the same. On one hand I want to fix it but I dont even have a plasma so I may go and spend $800-$1000 on a hi def DLP. At that price it won't be the best but it will rock this projector. that would be my advice rather than putting more money into this old model. 

Aug 06, 2007 | Philips ProScreen 4600 Impact Multimedia...

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