Question about InFocus ScreenPlay 4805 Multimedia Projector

3 Answers

Annoying hum on the projector

I have an Infocus 4805 and now when I turn it on, it has an annoying hum. The picture quality is still good. When I turn the power off (from the remote), the annoying hum goes away and I just hear the fan continuing to do its job.

The projector is now 3 years old and has had fairly heavy use (3 - 4 movies a week on average) during that time.

Is this an early sign that I need to replace the bulb or could there be something else here that I need to worry about?

Thanks.

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3 Answers

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  • Master
  • 3,422 Answers

Hi,

The color wheel runs with a high speed. you can check the free rotation by hand.it is not recommended to lubricate it but you can replace with the new one as the sealed motor is there for the same.

Goodluck,
Please don't forget to rate the solution.

Posted on Mar 27, 2008

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  • Master
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The bulb does not hum. It is the fan motor, you need to open the device and clean the dust inside

Posted on Mar 27, 2008

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  • InFocus Master
  • 13,433 Answers

Are you sure its not the fan?
I supose its good to clean the fan and the inside ones a year.
dust gets in there.

The fan could be failing.

il get back to you about the humm

Posted on Mar 27, 2008

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1 Answer

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.
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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.
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    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...

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    Horrible noise


    it is the color wheel i have a similar problem and am looking for the part, the color wheel is a small electric motor that spins at a high speed and it can go bad. which will lead to the horrible squeel/hum/buzz.

    Apr 24, 2007 | InFocus ScreenPlay 4805 Multimedia...

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