Question about Optoma EP721 Projector

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My projector it not working! i press the power button and it green light but it not light show can you please help me and also colour keep flashing.

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Sounds like the lamp might have blown. Sometimes the projector can't tell if the lamp is blown, so the usual red indicator light doesn't show.

After the projector is on, if you push menu on the remote do you see anything? Maybe the brightness is just turned down all the way. If you see no menu when you push the menu button it's time to inspect the lamp.

Open up the projector and pull out the lamp. You'll probably need a screwdriver to remove the cover, and then another screwdriver to unscrew the lamp and pull it out. Be careful not to touch the bulb's insides. Is the lamp on the inside of the fixture bulbous, or cracked. Look closely.

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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Hi try it may work


1. Turn off printer
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6. When green lights are solid, press the Resume button 4 times.
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Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
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  2. Hold down Resume button and press Power button.
  3. Keep holding down Power button and let Resume button go.
  4. Press Resume button 2 times then let BOTH buttons go.
  5. Green lights will flash and then stop blinking.
  6. When green lights are solid, press the Resume button 4 times.
  7. Press the Power button and the printer should turn off, if not, press the Power button once more.
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Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
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Hi may work


1. Turn off printer
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3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
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6. When green lights are solid, press the Resume button 4 times.
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Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
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