Question about InFocus ScreenPlay 4805 Multimedia Projector

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Infocus 4805, wont power up remotely

I tried to turn on my 4805 projector w/remote and nothing happend, batts good, remote led lights on when button pushed. Then manually switched power off and on, @ projector,..... fan started, color wheel cycled about 3 times in 2 minutes. Then green led power light on projector, began to flash red. The lamp never lights. This is repeated every time I manually switch it off and on. The remote has not worked since. This projector is 4 months back from a factory refurb and has about 170 hrs. since. Any ideas would be appreciated. I have an decent fluke meter and a basic understanding of electricity (auto tech for 20+ yrs.) Thanks John.

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  • kiwican Nov 26, 2007

    That would mean the power supply board knows that there is no bulb filiment continuity, prior to power up. So then does not accept remote signals? If that is true then I would be able to ohm bulb, and get to the bottom of this. I will do that today and post back. Thanks John.

  • kiwican Nov 26, 2007

    I just ohm'd the bulb @ connector and it does not have any continuity, so the $240 bulb is bad. This is bad, but I can fix it myself. I was very suprised to see the air inlet screen on bulb housing completly plugged with dust so the bulb overheated in less then 200 hrs. So projector owners do yourself a favor, buy a can of compressed air and clean out those bulb housings, fans and screens. I will be from now on. Thanks John

  • Anonymous Mar 20, 2014

    projector powers on and power light goes from green to red as all fans run, then temp light flashes red and power light stays red. Lamp does not light, with new bulb, and led does not light up.



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The lamp has burned ot and needs replaced,

Posted on Nov 25, 2007

  • cory casper
    cory casper Nov 26, 2007

    glad I could help



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