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

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EP 757 Intermittent powering down

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.


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Re: EP 757 Intermittent powering down

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.


Posted on Nov 19, 2007

Re: EP 757 Intermittent powering down

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

Posted on May 14, 2008

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What is the price for Optoma EP757?

it is out of stock product, because the production is no more done throughout the world, Although you can buy used or refurbished system from their own price.
good luck

Nov 28, 2010 | Optoma EP757 Multimedia Projector

1 Answer

Optoma EP757 displays green image when input connected. Initial splash screen displays fine. All colours are the way it should be but as soon as a video source is connected, it displays the image in...

I would suggest replacing the type of cable you are using. Changing the type of connection, such as S-Video or VGA or something other than what you are using, may resolve this issue as well. Because the splash screen comes up normal, this tells us that the issues lies not with the device but with whatever it is you are connecting it to. Comment back if this does not resolve the issue and we can move further.

Good Luck,


Jan 27, 2010 | Optoma EP757 DLP Projector

1 Answer

Optoma ep 706, lamp lights on,replaced lamp, still not working

This is an unfortunate incidence and i will send you the serviceable manual of your projector if you can send me your contact email address to my email.Yes ,there are instruction to follow to replace lamps in projector if not you might miss it. First you must confirm that the lamp is OK from the vendors you purchase before anything.

Aniekeme Anthony.


Jan 21, 2009 | Optoma EP706 DLP Projector

1 Answer

Cooling fan problem projector

I have a similar issue though mine isn't quite as extreme as yours. Got a couple things you can do.

1. clean out the projector with compressed air. You might have dust building up on components that is trapping heat.

2. Your fan might be burning out. Needs to be replaced. I'm still working on trying to figure out what tipe of fan it needs.

3. The temperature sensor might be going bad. This one is less likely and most complex to solve as it depends on how the system measures the temp. I haven't checked in detail yet.

4. Replace the whole unit or send it in for repair. Both options will be costly...

Jan 01, 2009 | Optoma H56 Multimedia Projector

2 Answers

Help needed for Optoma EP 719 DLP PROJECTOR

It's a setting in the menu. A few minutes poking around will fix it.

Jun 12, 2008 | Optoma EP719 XGA DLP PROJECTOR 2000L...

1 Answer

Microtek cx6

I've had the same problem with my projector three times (usually whenever there's a sports championship). You just need to call optoma, get an RMA number, and ship it to them. Theoretically they'll fix it under warranty and send it back free.

May 02, 2008 | Optoma HD72 Multimedia Projector

1 Answer

Power prob

blimey, these dv10s seem to suffer big from this problem.
check air filters,fans running.
if no input pj may shutdown by itself anyway
try connecting an input signal to see if pj keeps running

Feb 15, 2008 | Optoma MovieTime DV10 Multimedia Projector

2 Answers

Optoma EP 738

You can test the power source if you are getting any power input from the power cord itself. Plug in your power cord and use an eletronic meter on the other end to see if you are getting the proper voltage (110/120) reading. If not, then the power cable is bad in itself. IF you are getting power from your cord, it could also be a fuse inside the Optoma and/or where the power plug on the Optoma meets the actual power source is out of alignment or may also be not making the proper contact to the main circuit board on the Optoma. Hope it helps....JGUAM

Jan 28, 2008 | Optoma EP716 Multimedia Projector

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