Question about Optoma EP719 XGA DLP PROJECTOR 2000L 2500:1 CONT DVI-D WITH HDCP Multimedia Projector

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EP719 Projector is "Buzzing"

I have confirmed that the noise isn't coming from the fan. When I power up the unit the lamp comes on and buzzes for a few seconds, then the lamp turns off and the buzzing stops. The fan runs quietly. Any ideas?

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Re: EP719 Projector is "Buzzing" - Optoma EP719 XGA DLP PROJECTOR 2000L 2500:1 CONT DVI-D WITH HDCP Multimedia Projector...

Could be something touching the color wheel

Posted on Apr 30, 2008

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Lamp comes on briefly and then goes out

Check poewer connection
Check if fan filder is dirty ( if it is just hoover it out)
If "lamp" light on top of the projector blinks or stays lit - lamp probably faulty
How old is the Projector/lamp (average lamp life is around 2000-3000 hours)

Mar 01, 2011 | Optoma EP719 DLP Projector

1 Answer

I replaced the lamp and the projector is make a very loud buzzing noise. How do i remedy this problem?

There may be a fan rubbing against a cable or something, but more than likely there is a vibration damper clip that has come loose off of the colorwheel and will have to be fixed by a technician.

Oct 02, 2010 | InFocus ScreenPlay 5700 Multimedia...

1 Answer

When starting my projector it makes a buzzing sound for a few seconds then about 30 seconds it does it again and it will not come on. I changed the air filter but not the lamp.

If the seet is not powering up then the noise can be the fan or the power supply . If the lamp is not working then it can be a possible fault of the lamp or the power supply straining due to a load or shorted lamp and not starting up

Sep 28, 2010 | Sony BRAVIA VPL-AW15 LCD Projector

1 Answer

Power on, fan runs, get a red led at the "lamp" indicator then the projector goes to standby and shuts off. Projector is a benq MP515

Check the lamp physically if looks ok then problem suspect with Lamp ballast or lamp
M.R. Mumbai & Dubai

Sep 01, 2010 | Optoma EP719 XGA DLP PROJECTOR 2000L...

2 Answers

Optima EP719 won't power on - when power button

check that the lamp is on securly and that the cover is on securly too.

Feb 02, 2010 | Optoma EP719 XGA DLP PROJECTOR 2000L...

2 Answers

I turn tv light comes on but i get no picture or audio....then light indicator blinks red

Lamp or ballast(if lamp has been replaced) is bad.
Explanation: green comes on: system works, waiting for light to shine into light engine: no light is coming out of lamp, system shuts down, then you see red! how to determine: pull the lamp out of the unit's compartment. Inspect lamp: bloated stem? shuttered? reflector is not shiny? Chuck it!
Lamp looks good or just been replaced: try ballast. Close lamp compartment without lamp itself. Make sure, door is shut, as well. Turn unit on and listen close to lamp compartment: good ballast will make a buzzing noise, then stop. You've got "red'! No buzzing: ballast quit. Needs major repair! Lamp must be good, for sure, to get to the last part of diagnostics. Conclusion: more, than 2000 hours of usage: replace lamp first!
Good luck,

Jul 29, 2009 | Panasonic PT-D5600U DLP Projector

1 Answer

Optoma ep719 will not power up

Try this:
There is a stuffed 10v 3300uf capacitor on the power board. You need to replace it.
Bellow you can check in the picture where the capacitor is located.
Notice that in this picture I have already took the bad capacitor out and replaced with two small cords to reach the bottom and test the new capacitor.
To reach this place is not fast, several layers of plastic and metal must be removed, but is not a hard task to take the capacitor out and replace it for another.
It works just great! Now it is back on track with awesome image.

Jul 11, 2009 | Optoma EP719 XGA DLP PROJECTOR 2000L...

2 Answers

Optoma EP719 lamp does not come on

Ok, so forgive me, I'm going by memory. Take the top cover off (4 screws on the side). Take the top silver shield off, look at the screws and only take off the ones you need. It's ok if you take more off, but its just more screws to track. You will need to take off the back outer cover. You will need to unscrew the hexagonal screws that the vga-out port uses to screw the connector to, as these are holding the back plate on. Once you get in, the board you need to look at is on the bottom back. Look for a capacitor that has a rounded top, not flat like the others. You will need to replace this with the same voltage and capacitance. Try an electronics site on the internet to get the right replacement if you cannot find it locally. Sorry for the poor instructions, but its just been too long. As a practice, take pictures as you go (during removal of parts) and you can use them to reinstall. Hope this helps as mine is still working.

Jul 24, 2008 | Optoma EP719 XGA DLP PROJECTOR 2000L...

2 Answers

Projector will turn on but wont put out a picture

One gentleman said he found a Capacitor on the power supply board that had a bubble on it's side. He replaced the capacitor and the problem went away

Oct 28, 2006 | Optoma EP719 XGA DLP PROJECTOR 2000L...

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