Question about Optoma EP738 Multimedia Projector

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No power when trying to turn on the projector no fan or leds or noise are present. no light any ideas thanks dwayne

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Check power source(electricity)-power cable-door cover of lamp is closed firmly-if you reset button press it-check power fuse.

Posted on Jul 08, 2008

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If you only have 300 hours on it it should still be under warranty. Before doing something to void that I would check with Optoma techs.

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If power indicator light red and warning indicator red flashing than according to user manual :-
The projector has been cooled down enough and the temperature returns to normal. When turning ON the projector the WARNING indicator stops flashing. CHECK AND CLEAN THE AIR FILTER.
Experience:- 1. if the temperature is very low than temperature sensor maybe misbehave.
2. If anyone fan not working
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(If lamp or lamp ballast unit faulty than after a time period the lamp indicator light ON not a warning indicator. I experience many times if any fan in projector are broken or jamed the temperature light if present otherwise warning light ON or flashing)

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Infocus in42+ projector : at ~ after 5 seconds of starting up; projector starts to make cliking noise, Not very loud noise but noticible. It does go away after 7-10 seconds of clicking during start-up. It...


is it fast clicking like something hitting the fan blades, or a slow almost popping noise while the lamp is lighting? if fast, check for fan blade obstructions. if slow, you have a ballast that is trying hard to strike the lamp. if the projector is past warranty, you might want to get a new power supply from an infocus service center and replace it. try av solutions in ny. they re really good. www.avsolutionsny.com

Jan 15, 2010 | InFocus IN42 LCD Projector

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Because of high voltages and heat, there are many safety circuits inside these units. If you have a spare lamp, try replacing the lamp. Initial checks are made before the lamp is fired and sometimes a defective lamp can cause this. Also, can you descruibe what you mean by "noisier than usual"? Is the fan making more noise? Something elase making a noise?

Thanks,
Dan

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1 Answer

Intermittent Power up / dn


HI-

The projector is overheating, try cleaning the filters for the fan.


Hope this helps

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1 Answer

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2 Answers

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Hi there

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