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Does the Optoma HD20 DLP projector have a air filter? If it does, where is it located?


The Optoma HD20P doesn't have an air filter.
If you remove the covers you will find 2 cooling fans that get a build up of dust on the leading edges of the fan blades.
These can easily be cleaned with a small paint brush and a drinking straw to blow out the excess dust.
If you are having overheating problems, please view my post on replacing the heat sink compound on the image processor.


Jul 09, 2014 | Optoma HD20 DLP Projector

1 Answer

Optoma EP781

if all lamp are red, and no light on, It is power supply issue,
you need to replace power supply, it will be ok.

you can send me your old power supply photos, perhaps i have same parts,

Jul 06, 2014 | Optoma H30 Multimedia Projector

1 Answer

My optoma is switching on.

the power button may not working, you need to replace/repair it

Feb 24, 2011 | Optoma EP721 Projector

1 Answer


I would say to the optoma service agent in your country.
Look on there web site and perhaps give them a call.
They may have a swap out policy or speedy turn around so you will not be without it for long.

Please dont forget to vote if you liked my answer


Feb 09, 2011 | Optoma MovieTime DV10 Multimedia Projector

1 Answer

Optoma H70 picture flashes on and off

This is how my problem with the power not going on started. I cleaned mine and it was running much better. I decided to give it a good cleaning, but now the power won't turn on. Try at your own risk as this could happen to you as well. Just a note, I have had mine for 4 yrs with the same bulb, just over 6000 hrs. I was lucky until now.

Mar 30, 2010 | Optoma HD70 DLP Projector

3 Answers

Lamp goes out after a few minutes

my 3m projector switches off in 15 seconds indicating the lamp indicator, as the lamp has not been used enough

Mar 25, 2010 | Optoma HD80 Projector

1 Answer

Out of focus

make sure the projector is within the throw range (3.7 ft - 40.7 ft). if it is, and the focus ring doesn't work, replace the lens assembly.

Feb 02, 2010 | Optoma EP753 Multimedia Projector

1 Answer

Over heat and shut down

I had a similar problem with mine. I just put a fan on it, and that seemed to work...

It just needed more air flow and cooling...

May 14, 2009 | Optoma EP758 - HDTV Compatible DLP...

1 Answer

EP716 Optoma Projector Fuse

There is no fuse. I took my EP 716 apart to find out why it died. I found a resistor had blown on the power board made by the Tiwan co. Quazarpower. 

Dec 11, 2008 | Optoma EP716 Multimedia Projector

2 Answers

DV10 Color Wheel Replacement

Hello, the information is as follows:

Part no: 70.18r26g01
Cost: 129.00 + shipping
Model :Optoma DV-10
Contact no: (408) 383-3710
You may also contact the "out of warranty" repair department at 888.942.2929.

Glad to help.

Aug 18, 2008 | Optoma MovieTime DV10 Multimedia Projector

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