InFocus ScreenPlay 4805 Multimedia Projector Logo
Posted on Oct 27, 2008
Answered by a Fixya Expert

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Infocus 4805 blinking red light problem

My Infocus 4805 has stopped displaying the image. Its lamp looks good, only 560hrs.I have taken the lamp out and cleaned the filter. The color wheel also looks good. The fan is also rotating fine. The project tries few times to display the image and then the blinking green light turns into blinking red light. Please help. Cant figure what the problem. Can some one post pics of brunt lamp/color wheel so i can compare and see if my lamp or the color wheel is working fine or not.
Thank You.

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  • 4805 problem Mar 02, 2009

    While watching a movie the picture suddenly cut out. I have only 300 or so hours on the bulb. when i try to turn it on it tries to start up 5 times but no picture comes up. Everything sounds like it is working. the lamp door is closed. the screens are clean, the color wheel is fine, the fans both turn just fine. After it tries to start up five times the red light starts blinking once every two seconds. I have no idea what is wrong with the projector.

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  • Posted on Oct 27, 2008
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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.

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Related Questions:

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Infocus Screenplay 4805 No Display, help?
hi friend,
please try to clean the testing diode of color wheeel.
Jack
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Nov 22, 2011 • InFocus ScreenPlay 4805 Multimedia...
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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.
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    Aug 08, 2010 • InFocus ScreenPlay 4805 Multimedia...
    1helpful
    1answer

    I've just completed replacing a new lamp for my InFocus 4805 projector, and when I switch it on, the green light comes on, blink three times, the lamp comes on for 2 second, and then off. Need to know what...
    you have a bad colorwheel, and it needs to be replaced.
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    Feb 08, 2010 • InFocus ScreenPlay 4805 Multimedia...
    2helpful
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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...
    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!
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    Feb 01, 2010 • InFocus ScreenPlay 4805 Multimedia...
    0helpful
    2answers

    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
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    Dec 27, 2009 • InFocus ScreenPlay 4805 Multimedia...
    1helpful
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    My Infocus DLP 4805 can't turn on
    very possible the lamp is bad. Many projectors will not even power on once the lamp burns out. As for the strange noise, there may be something more serious wrong with it.
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    Jun 22, 2009 • InFocus ScreenPlay 4805 Multimedia...
    0helpful
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    Infocus 4805 Lamp will not ignite after new bulb and reset.
    it there is no high-pitched squeal when it starts up, the colorwheel needs replacing. the lamp won't light without it. the part is under $50, but installation is quite involved.
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    Apr 16, 2009 • InFocus ScreenPlay 4805 Multimedia...
    3helpful
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    4805
    In the manual there is a chart which will indicate the nature of the failure depending on the number of times the red led flashes before a pause.

    Most common is the projector's lamp timer has exceeded the operational lamp time limit.

    While the projector's red led is flashing, press the volume up and down buttons on the projector simultaneously and hold them both in for 10 seconds.
    This will reset the lamp inhibit protocol.

    However if the lamp has thousands of hours of use you need to replace it before it actually fails.
    Read full answer
    Feb 28, 2009 • InFocus ScreenPlay 4805 Multimedia...
    1helpful
    1answer

    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)
    Read full answer
    Feb 12, 2009 • InFocus ScreenPlay 4805 Multimedia...
    0helpful
    1answer

    Infocus 4805 - Doesnot display and make noise at start-up
    Well a single red blinking means the lamp won't strike after five (5) attempts. The "squeaking" sound if it's coming form the large fan usually always means the Mos-Fet fan speed controller chip has failed which presents sometimes as an intermittent squeaking sound. Which would implies the lamp may have failed from the resultant over temp. However if the squeaking noise is coming from the color wheel that would mean it's bearings have failed and if is is unable to phase lock at reference speed the lamp would also not strike. The odd symptom is the remote thing... That does not fit! If is actually is related to the common cause of all the problems... That leaves only the power supply has partially failed (not too expensive) causing all of these symptoms.

    Or murphy has moved in...

    Good luck!

    SagerTronics
    Read full answer
    Oct 28, 2008 • InFocus ScreenPlay 4805 Multimedia...
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