Question about InFocus LP640 Multimedia Projector

1 Answer

Red Color After about one to two hours of non stop use the color red is no longer being projected onto the screen. Is this a failing lamp or some other problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,236 Answers
Re: Red Color

Lcd panel failure or bad main board. either way, you'll have to send it in for repair.

Posted on Dec 29, 2009

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

This projector is projecting a red color throughout. What should I do to correct the color? It has been turned off for about an hour. Please advise. Thank you.

The EX240U uses a DLP imaging chip and a rapidly spinning six-segment color wheel (red, blue, green, white, yellow and cyan) to form the image. It is likely that the spinning color wheel has stopped with the red filter in front of the chip. I recommend opening the projector and see if you can coax the wheel to move and maybe it will spin once again. if not, it may be the wheel motor or the circuitry that affects the timing of the spin - either way, it will take a trip to the repair shop to fix.

Hope that helps.

Mar 05, 2015 | Mitsubishi EX240U Projector

1 Answer

The image color on projection is not the same as shown in laptop. There's is no red color.

It could be a broken connection in the computer lead for the red signal, or a fault on the projector that the red panel doesn't work any more.

To diagnose, bring up the projector's on screen display. If there's white in the menus then the problem is the cable. Replace it with a new one. If the menus are affected too then it's a projector problem. This requires the attention of a service engionner.

Aug 20, 2014 | Toshiba Tdp-s25 1080i 720p Hd Dlp...

1 Answer

Optoma HD80 flashing blue lights

Sound like the original color wheel for Optoma HD80 is bad.

If the unit has been moved when hot.

If not, try un-plugging the unit for a few minutes and re-connect.

Hope this helps

Mar 23, 2014 | Optoma HD80 Projector

1 Answer

Sony VPL-P510 projector

there are 3 LCD panels in the projector.
red panel,green panel and blue panel
I seems that the red panel is failing
We supply original projector lamp,bulb,parts,Lcd panel,Lens,DMD chip,color wheel,motherboard,powersupply,ballast... with high quality and competitive price.
any questions, feel free to contact me
have a nice day!
Jerry,Lampdeng Limited

Mar 18, 2014 | Multimedia Projectors

1 Answer

Beamerproblem! I've got a red-color problem with

Take it to GameStop. They can find the problem lickety-split!

May 17, 2013 | Multimedia Projectors

1 Answer

It not bringing out showing black and white

I will need some clarification as to the model number of your projector to best help you but in general if you have a DLP type projector & suddenly lose all color to your image then the color wheel has failed by burning out or breaking. The color wheel sits directly in front of the projection lamp & if you take your lamp out you can use a flashlight & point it in towards the spot where the light comes out of the lamp & look at the color wheel. The color wheel has 4 to 6 different color pieces called segments like yellow, red, blue & a clear segment. You will be able to see if the color wheel is broken.
If it is you need to have the unit serviced. If you're handy you may be able to order a new color wheel. They are usually around $100. There can be other causes as well but the wheel is the first place to investigate. Please let me know if this was helpful.
Thanks & good luck,

Apr 14, 2011 | Acer Multimedia Projectors

2 Answers

Epson 76C projector that the picture has no red color to it. I have tried the adjustments as described in the manual but no success. The blue and green is great but no red? Thank you.

Youve probably got something gone wrong with your dlp chip with the million mirrors on it, see when the mirror tilts away from the light you get a black shade- tilted toward light lighter shade now throw the color wheel in which gives you color youve got green and blue so the color wheel is fine. Now how to replace chip? Dont. Look for a digital board or video board replace that and that should take care of ya. Good luck hope this helped ya-

Aug 22, 2009 | Epson PowerLite 76c Multimedia Projector

1 Answer

Infocus 4805 blinking red light problem

My first questions is:

Is this the first lamp you have placed into your Infocus pj? If not, did you reset the hours when you did it last time? Otherwise that can also confuse the projectors internal system thinking there is NOT a new lamp in there and there for make it stop working once the clock hours are expired and over the 3000-6000 suggested hour life.

Let me know so I can help trouble shoot other possible problems.

Oct 27, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer


if he replaced the ballast, the light would stay on. if it only projected red, you have a main board issue.

Jun 02, 2008 | Multimedia Projectors

1 Answer

My projector won't come on.

I answered this question many times. This is caused by a failed color wheel sensor. It faile gradually, first the lamp flickers, sometimes go dim for no good reason. Finally the lamp will not strike and you will get two red warning lights. I am factory trained and I stock the redesigned senor.

Aug 30, 2006 | HP vp6320 Multimedia Projector

Not finding what you are looking for?
InFocus LP640 Multimedia Projector Logo

Related Topics:

225 people viewed this question

Ask a Question

Usually answered in minutes!

Top InFocus Multimedia Projectors Experts


Level 3 Expert

2236 Answers

Juan Carlos Pacheco

Level 1 Expert

36 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you an InFocus Multimedia Projector Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides