Question about InFocus ScreenPlay 4805 Multimedia Projector

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Random and unusual fan noise

One of the fans inside my infocus sp 4805 make a random and unusual noise. Can I get somewhere the service manual to fix it?

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  • coramm May 29, 2009

    Hi ametehan, my email is:coramm@videotron.ca. Many thanks, Michel.

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  • Master
  • 489 Answers

Give me a mail adress so i can send you. i have a website its turkish but guide is english i downloaded it
waiting fo you

Posted on May 29, 2009

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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

    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...


    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!

    Feb 01, 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

    My bulb went out on my infocus sp-4805. I bought a new bulb, and replaced it, and it worked...for five minutes. the picture went out, and it was overheated. I took some parts off, and sprayed can air in...


    The fan is probably on it's way out and cannot produce enough air flow to cool the lamp. Replace the fan with the same ratings as the original and it should work fine. The only other thing would be a problem with the power supply not supplying enough power to the fan, but, a bad fan is more likely.

    Feb 24, 2009 | InFocus ScreenPlay 4805 Multimedia...

    1 Answer

    4805sp runs 4 or 5 minutes then shuts down


    could be the fan should be running to cool the lamp. there could be temperature sensor that is why it is shutting down to save your lamp.

    check the fan if it has continuity. it could be broken and need to be replaced.

    tnx 4 using fixya,

    drcool

    Oct 18, 2008 | InFocus ScreenPlay 4805 Multimedia...

    2 Answers

    4805 infocus projector


    it is the colorwheel bearings going slowly due to excessive dust and heat. remove the lamp and push in the switch actuator on the lamp door frame. turn the projector on and see the colorwheel spin in the lamp housing window. does the noise happen when the wheel spins and stops when the wheel stops? let the switch actuator go. does the noise stop? it's the colorwheel (pn: 525-0146-00). you can get it through an infocus service center. try av solutions in ny. www.avsolutionsny.com

    May 10, 2008 | InFocus ScreenPlay 4805 Multimedia...

    1 Answer

    Wiring fan direct


    If your main fan is not turning or not turning reliably, most likely your fan controller on the main board has failed. I don't have any information on the voltage requirements for the fans. The service manuals for the Infocus projectors does not have any schematics so I wouldn't know where to pull power from without harming anything else.

    Sorry.

    Apr 11, 2008 | InFocus ScreenPlay 4805 Multimedia...

    3 Answers

    Infocus sp-4805


    What I have just finished doing with my x2, because it was the controller board not giving enough voltage to the fan. I used my kiwi initiative and hard wired an old nokia cellphone charger transformer inside the projector and connected to the 240V inlet from the underside of the power supply board, this worked brilliantly and supplies the fan with the power, the only dis advantage is that the fan will keep spinning as long as the projector is plugged in (could be easily fixed with a switch), but the way I see it it's better for me because it cools the bulb down a lot longer. Saved me from buying a new projector Lol, if you would like I can send a pic of what I have done?

    Feb 07, 2008 | InFocus ScreenPlay 4805 Multimedia...

    1 Answer

    Loud noise


    It's probably the colorwheel not the fan, can only be fixed by replacement.

    Dec 05, 2007 | InFocus ScreenPlay 4805 Multimedia...

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