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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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Re: infocus 4805, wont power up remotely - InFocus ScreenPlay 4805 Multimedia Projector Multimedia Projectors

The lamp has burned ot and needs replaced,

Posted on Nov 25, 2007

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This symptom can be caused by a few different conditions. Do you hear the fans running? If not then possibly the over temp protection switch has failed.
or the lamp cover is not securely in place.

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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...

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