Question about Optoma EP739 Multimedia Projector

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Do optoma projectors have fuses?

Bulb replacement did not work I figure it might be a fuse that relays power to the bulb

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: No Power

The problem with the bulb cover interlock(safety switch) tab is that it is molded with the plastic cover. When these projectors are ceiling mounted upside down, the heat from the bulb melts the interlock tab and causes it not to actuate the interlock switch. 5e5b596.jpg If you push the switch arm in you can hear the switch click. The fix I did on my projector was to bend the switch arm so that it stays actuated. You can use a small set of needle nose pliers or two small screwdrivers. be careful to only bend the arm in the middle, if you break the arm from the switch, you will have to go in and bypass the switch.... Just be carefull...
c0cb930.jpg After you bend the switch arm try to press it in, if you did it right you won't hear the click. install the lamp, cover, and your done.

Posted on Apr 14, 2009

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SOURCE: optoma DX605 hard reset

Have you tried going to Menu>Options>Lamp Settings>Lamp Reset>Yes?

Hope this helps!!

Posted on Jul 13, 2009

  • 2 Answers

SOURCE: OPTOMA HD70 projector turns off in a few seconds

my 3m projector turns off as soon as it is turned on

Posted on Mar 29, 2010

  • 1 Answer

SOURCE: My Optoma HD72 projector operates for about 1

The problem is not over-heating. The Optoma HD72 has a known problem that Optoma won't advertise. The lamp driver is faulty. They simply have to replace the lamp driver. I purchased a spare lamp with my original purchase. I had the exact same experience as you at around 1200 hours on the lamp in ECO mode. I used the spare lamp. Same thing happened at about 1200 hours. I had a friend at Optoma. he confided to me the problem. I sent it in and they replaced the lamp driver at no charge. I got another 800 hours out of the first lamp and am now using my second lamp and have about 600 hours on it. The pic quality is so good with this projector (used Digital Video Essentials to calibrate) that I'll just order a bare lamp or two and use the existing lamp housings when I need a new bulb.

Posted on Jun 19, 2010

  • 1 Answer

SOURCE: How do I access service menu to reset lamp timer for Optoma H56?

In order to reset the bulb counter you need to access the Service Menu:
To access the Service Menu:
Turn on and warm up
press the following sequence:
Up
Up
Left
Give it a few goes, it took me 5 minutes to enter with the right timing. The Service Menu will appear, highlight factory reset and the counter goes to 0. Job done. Cheers, Matt.

Posted on Jan 28, 2011

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My Optoma HD72 projector operates for about 1 minute and then shuts off. I kept my old bulb around "just in case", I've replaced the bulb with the old one and have the same problem.


The problem is not over-heating. The Optoma HD72 has a known problem that Optoma won't advertise. The lamp driver is faulty. They simply have to replace the lamp driver. I purchased a spare lamp with my original purchase. I had the exact same experience as you at around 1200 hours on the lamp in ECO mode. I used the spare lamp. Same thing happened at about 1200 hours. I had a friend at Optoma. he confided to me the problem. I sent it in and they replaced the lamp driver at no charge. I got another 800 hours out of the first lamp and am now using my second lamp and have about 600 hours on it. The pic quality is so good with this projector (used Digital Video Essentials to calibrate) that I'll just order a bare lamp or two and use the existing lamp housings when I need a new bulb.

Apr 12, 2010 | Optoma H30 Multimedia Projector

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Optoma hd65 projector new bulb wont turn on...cant reset timer!


I think it's a lamp driver issue from what I've seen others have gone through. I also read that if you go through the sequence of unplugging, plug back in, wait 20 seconds and try to turn on, multiple times, it will finally kick on and work. I just got mine to turn back on by doing this and waiting through the fan cycling without the light turning on. After the 4th sequence the light flickered. After the 7th sequence it finally turned on and is working. Now I can watch the Super Bowl and will look into replacing soon.

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