Question about Optoma EP737 - DLP PROJECTOR - 1500 LUMENS *NIC* Multimedia Projector

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EP 757 Intermittent powering down

Hi,
I've got an Optoma EP757 projector that works fine for about 10 mins then just seems to automatically switch the lamp off & power down. There are no warning lights flashing or anything and if I restart its fine again for about 10 mins and does it again. Any help appreciated.

Regards.

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  • Scott3317 Jan 23, 2008

    I have a EP 757 also and have the same problem after about 20 min. a mesage apears "Over tempeture shuting down" I sent it in to optoma an they wanted to change out the DMD Board and change out the Lamp for $850. I declined the repair, the image is fine!!. Can a lamp that has a hundered or so hours on it run hotter ? Lamps are around $300 so I would like to know Before spending that much, any sugetions?

  • Anonymous Nov 25, 2008

    I have the same problem but I can extend the watch to time to about 90
    minutes if I crank up the AC and cool down the room. This problem
    didn't kick in until I had the projector for about 1 year (intermittent
    use - probably about 100 hours). I've tried blasting the unit with compressed air but no luck. Should I open the unit up? What should I look for when I do (specific instructions please).

  • Sonny Feb 03, 2013

    its because optoma put a copper shild in the lamp cover I toke it out problem solved

  • Sonny Feb 03, 2013

    Its because Optoma put a copper shild on the inside of the lamp cover copper conducts heat not sure why its there maybe to refleck more lumen but I removed it issue gone

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  • 115 Answers

Pls check if the lamp is not so old that is giving the same problem. If lamp is almost new, then you can have a check with the Ballast unit card and then the loose connection in the Power supply or may be overheating and tripping.

Viren

Posted on Nov 19, 2007

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Check fan bearings/speed and airflow for restrictions like dust.

Posted on May 14, 2008

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1 Answer

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anytony2004@yahoo.com
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