Question about Mitsubishi HC5000 LCD Projector

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The screen turns yellowish

The screen turn yellowish, some one told me that may be the blue panel of the lcd is not working, only the red and green are, so thus the yellowish color I got.

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  • ckimleng Dec 27, 2008

    I've the same problem. It occurred just last night. The entire image is yellowish. Help appreciated. Thanks!

  • densew Mar 16, 2009

    My fairly new HC5000 was great till all of a sudden the picture is tinted yellow and green. My start up screen used to be a blue now it is a bright lime green. I have tried changing the color through menu with no results. Is this a LCD panel problem? Anyone know how to fix?

  • video21 Apr 12, 2009

    my mitsubishi hc5000 has anall over yellow look on screen

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That is true, problem is as old as lcd projection. Suggest buying a dlp product. they don't color decay

Posted on Jul 09, 2009

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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

It doesn't show red color. i tried to do factory reset. but still problem.


1.After turning on the projector, press "+" and "-" buttons on the control panel
simultaneously for 3 seconds and release the buttons when screen goes blank.

2 Press "+" and "-" buttons again to exit the diagnostic mode.

3 While in Self-diagnostic mode, the screen will run a seven-color-cycle test as
following:
Red--> Green--> Blue--> White--> Watchet Blue--> Dark Green--> Yellow.

Ensure that the colors of the test pattern are correct.

Contact Dell if the colors are not displayed correctly.

Mar 01, 2011 | Dell 2400MP DLP Projector

1 Answer

I replaced the lamp on a Panasonic PT-LC80U thinking this will solve the yellow appereance, but it did work, it seems that there are not blues in the image. What Can I Do to solve the problem?


here are some probable causes..
This appears to be an older model (over 5 years old) and LCD projectors turn yellow with age. It's just what they do
However, if you are projecting a computer signal or a component signal, a short in the blue signal of the cable can cast yellow hues over your image. The hue will cover the entire image as if you are viewing the image "through rose (or in this case, lemon) colored glasses" so to speak. That's an easy fix.

Harder fixes: the blue LCD panel is weaking and/or gone bad.

If you have a round yellowish spot in the middle of your screen, the diffuser has been overheated and is "burnt".

Apr 08, 2010 | Panasonic PT-LC80U Multimedia Projector

1 Answer

My sony projector works great but there seems to be some green coming in on the screen..i played with the setting but no results..Are their any trim pots for the red,blue,green lcd panels?


if you reset the settings to factory default and swaped out cables, then the oly thing left to do would be to realign the lcd panels. unfortunately, only sharp service centers can do this easily. they have a tool specifically made for lcd panrl alignments on sharp projectors. you could try av solutions in ny. the'yr pretty good. www.avsolutionsny.com

Dec 04, 2009 | Sony VPL HS10 Multimedia Projector

1 Answer

Projector lamp shows blue on white screen


the red is cutting out. white=blue+green+red. without red, you get blu+green, or cyan. if this was an lcd projector, i'd say it's a burnt light filter, the red lcd, or the lcd has come unplugged. but since this is a dlp projector, you have either a dmd board issue or a main board issue. either way, it'll be pricey.

Feb 18, 2009 | InFocus LP120 / 1000 Lumens / XGA / DLP...

2 Answers

NEC Multisync MT1000 Projector - Green Hue


its not the bulb problem . the lcd block need sto be replaced , better to buy new projector

Feb 06, 2009 | NEC MultiSync MT1000 Multimedia Projector

1 Answer

Acer projector


A DMD has no inherent colour capability - it's just a configurable mirror array. If you want to do full-colour projection, then, you'd expect that you'd have to use three DMDs and three coloured filters - red, green and blue.
But if a single DMD's switched in synchrony with a rotating "colour wheel" - a spinning tri-colour filter that lets through red, green and blue light in turn - then the very rapid switching speed of the DMD lets it lay down red, green and blue images in such fast succession that the result is a perfect colour image.
You can do the same trick with a single LCD panel, but it's not a good idea; LCDs are transmissive, rather than reflective, devices, and block something like half of the light that tries to get through them. To maximise brightness in LCD projectors, a three-panel design works better. If you try to pump the entire output of a super-bright lamp through one LCD, keeping it cool becomes rather challenging.
The extreme smallness of the moving parts on a DMD mean that it behaves like a solid state device, not a mechanical one. For all their complexity, DMDs have very high Mean Time Between Failures (MTBF), and well-made projectors based on DMDs can be expected to last easily as long as LCD units, and probably longer. If a DLP projector fails, it's not at all likely to be because there's something wrong with the DMD.

Sep 06, 2008 | Acer PD100 Multimedia Projector

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