Question about InFocus ScreenPlay 4805 Multimedia Projector

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InFocus ScreenPlay 4805 no projection. Unit powers on and green light blinks, but no light and no fan, eventually red light blinks continuously about 2 seconds between blinks. When the green light is blinking a faint, high pitched sound occurs at regular intervals as if something is trying to power on. Filters are clean. How to determine if lamp or fan? Lamp hours are in the low hundreds. If fan, how to purchase and replace? dmfabri@wideopenwest.com

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The high-pitched sound is the colorwheel trying to spin up to speed. that may need to be replaced. check the inside of the lamp for bulges, black spots, fogging or flaking. if it has any of those, replace the lamp. you can get parts from an infocus service center or send it to them for repair. either way, try www.avsolutionsny.com they're really good. if you want to replace it yourself, there is a detailed step-by-step on my "tips" area. it's the same as the infocus x1, x2, x3 and sp4805. click on my picture and scroll down to tips. good luck!

Posted on Feb 03, 2010

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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.
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  • 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.
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  • 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...

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    Ordered/installed from Infocus a new bulb unit.


    the colorwheel needs to be replaced. the projector won't turn on if the colorwheel motor is not up to speed.

    Feb 25, 2010 | InFocus ScreenPlay 4805 Multimedia...

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    Unresponsive, lamp dies upon start


    if you don't hear a high-pitched whir, the colorwheel is shot and needs replacing. if you do, one of the fans might not be working and the heat shuts it off so as not to cause damage.

    Oct 15, 2009 | InFocus ScreenPlay 4805 Multimedia...

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    I turn on the 4805,green led blinks & bulb does not come on?


    After a few minuets does the green blinking light turn to a red blinking light?

    If so the problem is the lamp did not strike.Either the lamp has failed (most likely) or there is a problem with the power supply (less likely)

    Feb 12, 2009 | InFocus ScreenPlay 4805 Multimedia...

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    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...

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    Yikes. I bet the bearing is bad in the fan and/or the fan is rubbing up against something. It might be an fix.

    Jul 16, 2008 | InFocus ScreenPlay 4805 Multimedia...

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