Question about Epson Powerlite 1720 Lcd Projector 3000 Lumens 100% Positive F.b

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Why does my projector make a very loud buzzing sound.

The sound is constant and does not stop until I turn the projector off. It is very loud and getting louder.

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The buzzing sound will be a frequency vibration from the mains power cycles
check for loose connections, transformer mounts, loose bulb or any thing else that can vibrate

Posted on Apr 27, 2015

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Posted on Jan 02, 2017

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If this sound you are describing is NOT constant and is intermittent in nature it is certainly not a color wheel problem. This sound is usually caused by failure of the Lamp cooling fan (the large one)'s Mos-Fet driver chip. Located on the bottom of the main board. These surface mount "chips" do fail and it's a fairly common problem however this is usually (but not always) accompanied by the projector shutting itself down after a few minuets or so as the high temp switch trips off. A color wheel common failure presents in two ways, either all the glass color filters fly off (there are six) and the image is monochrome (black and white) or just one or more of the segments has come off and the result is an imbalance of the color wheel which spins VERY fast resulting in a vibration
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Good Luck!

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1 Answer

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It sounds like a piece of your colour wheel has fallen off. You will need to take the front panel off (2 screws) plus the two plastic rings around the lens pull out. Be careful not to snap a circuit that sticks out behind the remote sensor on the front. I've had this problem a few times but have just glued it in with 24 hour drying glue, the noise i had was so loud it was hard to watch anything, plus i lost the red colour to the picture until i glued it back in.

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Hi topher1234

I will need your Make and Model of the Projector , before I can do a diagnosis. Also include if this is a LCD or DLP machine.

Together with the above , can you feel any vibration on the Projector when you place your hand on it ?

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