Question about InFocus LP70+ Multimedia Projector

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I'm getting green and then blue light out of the projector instead of white. What's up?

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Either the colorwheel needs to be replaced or you have a main controller issue. or the dmd chip. the colorwheel is relatively inexpensive, but the other 2 are not.

Posted on Oct 16, 2009

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I have some picture distortion - pink fuzzy color where white should be (like on hockey ice). I'm trying to determine if the t-con board is to blame and if I might fix it easily


Hi Bill.

I don't see a specific model for your TV, but have owned a rear projector system before. There is usually a sub-menu where you can do fine alignment of the Red, Green, and Blue projectors to get rid of the pink fringe. There is generally a white crosshair at center screen where you can fine align the three colors to get rid of the fringing, and sometimes an advanced menu where there are crosses all over the screen that you can individually select and fine tune, (tweaking the different optical distortions of the individual projectors to overlap).

If the fringe is a big swath instead of a fine edge, or if a color is totally gone, then you may be talking power amp issues. For fine fringes, the adjustments usually work fine.

Hoping that helps!
D

Dec 18, 2015 | Televison & Video

1 Answer

My projector has lines on the screen. new bulb didn't help


If this projector is connected by Component Video (3 or 5 wires) instead of HDMI, the most common color related problems are caused by having one of the 3 video cables (Red, Blue or Green) with a bad connector. If everyone is a green smurf the problem is with the red cable. If everyone is a red smurf the problem is the blue cable. If the green was bad you wouldn't see anything.
Another possibility is if the green is plugged into the yellow jack instead of green jack on the projector, you could see what you are describing.
If everything checks out, take the projector to a repair facility.
If you are connected by an HDMI cable, (combined with the fact you mentioned vertical lines not horizontal) then take the projector to a repair facility.
All of this assumes that you don't just have a bad Cable Box or Blu-ray player or Home Theater Receiver. (The source)

Oct 01, 2014 | Dell 1210S Projector

1 Answer

I have a VT465 and the projection back ground is yellow and I can't get it to be white


If you are talking about the actual image that is coming from a laptop being yellow instead of white, then this is caused usually by a bad signal cable running between the computer and the projector.
To be more specific: All colours in a projector get made up in some way between red, green and blue. White is all of these colours at maximum, yellow is made by red and green at maximum but no blue. If your image is Yellow when it should be white, then the blue signal information is not reaching the projector. This can also happen within the projector or computer itself but is less likely. If your using a VGA cable (15 pin cable) then blue is run through pins 3 & 7 (positive and negative respectively), see if your cable is either missing these pins on either end or if they are bent, although it's more than likely within the cable itself. You can test this theory easily by trying to put something blue on screen, if the blue signal isn't getting through then it'll appear black.
If changing the cable doesn't solve the problem try testing the computer by trying to use a different one, and test the projector by plugging in a monitor or another projector.

If you are getting a yellow screen without sending signal and just trying to get the "no signal" or "no input" screen white, then this won't be the case.

Mar 24, 2011 | NEC Office Equipment & Supplies

1 Answer

My picture is coming out in black & white instead of color. What am I doing wrong


Two possibilities come to mind...!st: Verify that your component video cables are correct ie red to red, blue to blue and green to green. Check this at both ends of the cable. In the dark, people often get the green and blue cables reversed. 2nd: Gently shake your projector. If you hear things rattling around inside, it's more than likely your colorwheel has shattered.

Feb 20, 2010 | InFocus Office Equipment & Supplies

1 Answer

White areas in the image are yellow and the black are blue-green


you have a few issues. first is the yellow in white. the light filter on the blue lcd panel is fried due to excessive dust and heat. unfortunately, you may have to replace the whole optical engine. as for the flashing horizontal lines, the power supply isn't cooling down and the caps are drying out, causing fluctuations in voltage. so, replace the power supply.

Jul 04, 2009 | Toshiba TLP S30 Multimedia Projector

2 Answers

Yellow in center of picture


The blue device is dying allowing green to shine thru instead of white. Very common problem called color decay. Happens on average about evey3-4000 hours. I suggest next purchase a dlp product, they are immune to this problem. Good luck

Mar 29, 2009 | Sharp Notevision XG-NV6XU Multimedia...

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...

1 Answer

Yamaha LPX 510


Welcome to the disapointing world of LCD projection. Your blue device is dying and thus allowing the green to come through instead of combining for white. I suggest buying a dlp product they are immune to this color decay problem. Good luck

Jan 13, 2009 | Yamaha LPX-510 Multimedia Projector

1 Answer

Pink shade more in NEC WT-610 PROJECTOR


Using the on screen menu, check the hue or wall color settings. [Hue]
Varies the color level from +/- green to +/-blue. The red level is used as reference. This adjustment is only valid for
Video, Component and TV standard inputs (not valid for RGB and DVI digital).


Using the Wall Color Correction [Wall Color]
This function allows for quick adaptive color correction in applications where the screen material is not white.
The following nine options are available.
• OFF • Blackboard
• Blackboard (Gray) • Light yellow
• Light green • Light blue
• Sky blue • Light rose
• Pink

Dec 30, 2008 | NEC WT610 DLP Projector

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