Question about InFocus ScreenPlay 4805 Multimedia Projector

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I recently had my lamp go out for the Infocus SP 4805 projector. When I replaced the lamp, the projection/imapges had discoloration in a couple of spots on the screen. not completely black, but discolored. I can live with it for now since I can still see the majority of the image. Is this a sign that I will need to replace the projector soon?

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If you have not already found out, your problem may be a Light Tunnel Failure. It is common and can be corrected DIY. Replacement part is nearly non-existent and manufacturer repair is expensive.
For additional info go to www.avsforum.com and search for "4805 Light Tunnel". You will find threads about the problem as well as fixes. I also posted a DIY replacement option as well:
www.avsforum.com/avs-vb/showthread.php?t=1304694

Posted on Jan 07, 2011

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My Infocus 4805 is just showing the INFOCUS logo and not showing the picture from the TV. all connections are correct but no signal....help


Powering On
  • If your InFocus 4805 projector is having a hard time powering on or doesn't power on at all, it could be one of two things. Due to the extreme temperature of the lamp that causes the temperature of the projector to rise, every InFocus 4805 projector has a cooling system. Check your projector's cooling solution, as it may need to be replaced. Also check the projector's fan---if the fan doesn't spin, the unit will not turn on. If the problem is the fan, you'll have to get it replaced. You can do this at the same place you bought your projector.
  • The Lamp
  • If your InFocus 4805 Projector powers on but does not project any light, the lamp will need to be replaced. All projector lamps must be replaced at some point---how often usually depends on how much use the device gets. Simply order a replacement lamp, unscrew the old one and screw the new one in. The projector will then work like new.
  • Color Wheel
  • If your InFocus 4805 projector powers on and is displaying images but the colors on the images appear warped or are not in the proper places, your "color wheel" will need to be replaced. The color wheel is a small device that essentially acts like a prism. Light is projected through it and it displays the appropriate colors on screen the way they appear in the original video source. Order a replacement color wheel that fits your model and use your instruction manual as a guide as you swap the old one out and put the new one in.
  • Aug 08, 2010 | InFocus ScreenPlay 4805 Multimedia...

    1 Answer

    No picture


    the projectotr circle is the colorwheel and it has to be replaced. as far as having no picture, is the led on top flashing red or green ? If flashing red how many times ?

    Jun 12, 2010 | InFocus ScreenPlay 4805 Multimedia...

    2 Answers

    How do i find out if i need a new lamp for my infocus 4805. when i turn it on the fan blows for a cpl secs and the green light blinks a few times, but i dont get anything saying the lampis out


    when you power it on, do you hear a high-pitched whir? if not, you need to replace the colorwheel. it's also the colorwheel if you hear a buzzing instead. if the colorwheel does not spin, the lamp won't come on. if the colorwheel is ok, check the lamp. is the screen on the side of the lamp clogged with dust? is the inside of the lamp bulging, spotted, or foggy? if so, replace the lamp and clean out your projector with canned air. dust blocks air flow and keeps in the heat. this shortens the life of your lamp and projector. if you do need the colorwheel replaced, you could get the part from an infocus service center and do it yourself, or send it in for repair. either way, try av solutions in ny. they're really good. www.avsolutionsny.com

    Dec 27, 2009 | InFocus ScreenPlay 4805 Multimedia...

    1 Answer

    The Lamp won't strike


    if the inside of the lamp has bulges, black spots or fogging, replace the lamp. otherwise, if you have a dlp projector, it may be the colorwheel or the ballast. if you have an lcd projector, it may be the ballast.

    Dec 21, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

    1 Answer

    My InFocus 4805 SP projector is showing just black and white


    If you have any video at all and it's only Black and white there is a 99.99% chance that your Color Wheel has lost all of it's glass color filters.
    You can confirm this by removing the lamp. then look straight into the projector where the lamp was and you should see the color wheel of colored glass segments (Red, Green and blue) I believe you won't see them because they came off of the wheel.
    Also if you lift up the projector and turn it around in various angles and you will hear the small pieces of broken glass from the color wheel.
    Unfortunately you will need to take it to an authorized service center for repair. Be prepared to spend upwards of $300 for the repair.

    Cheers

    Aug 23, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

    1 Answer

    Light went out


    then it may not be the lamp, but make sure you have the right one (sp-lamp-021). also check to see if the colorwheel is moving. turn the projector on and listen for a high-pitched whir. if you don't hear one, the colorwheel needs replacing. and the lamp won't light without the colorwheel spinning.

    Jul 17, 2009 | InFocus ScreenPlay 4805 Multimedia...

    2 Answers

    Discoloration


    Please contact Swati@justlamps.com.sg for all your projector lamps needs. We provide orignal projector lamps with casing. We stock all Brands & Models avaialble in the market today.

    Jan 21, 2008 | InFocus Litepro 580 Replacement Projector...

    1 Answer

    Replacing bulb


    hold the volume up/down in ,switch unit on while holding these in for 30 secs, if that fails, flash unit with new software.

    Dec 01, 2007 | InFocus In Focus SP-LAMP-021 Replacement...

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