General cleaning advice for my DLP projector. - AVS Forum
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post #1 of 14 Old 01-03-2013, 02:48 PM - Thread Starter
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Hey guys and gals. I've been running a Optoma HD33 in my house for about a year and besides a regular dusting and lens cleaning, I haven't done much as far as deep or internal cleaning. She's running fine, not issues to report, and I run a pretty clean ship, no smoking, kids, etc ... but I do have dogs and know my other AV equipment, even in a rack, can get a bit dusty and what not so I feel like a good once over may be needed.

Anyone out there have any advice/tips/or tricks when it comes to cleaning a DLP projector, or is just a matter of grabbing some canned air and having at it?

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post #2 of 14 Old 01-03-2013, 03:39 PM
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Stop right there and put the air can down! Do not do anything to your projector other than clean the filter if it has one! You start blowin air around and you will end up with dist on the DLP chip and problems you didn't have when you started. In 4 or 5 years you may want to open it up and clean the color wheel, but now is not the time!
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post #3 of 14 Old 01-03-2013, 04:07 PM - Thread Starter
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Quote:
Originally Posted by airscapes View Post

Stop right there and put the air can down! Do not do anything to your projector other than clean the filter if it has one! You start blowin air around and you will end up with dist on the DLP chip and problems you didn't have when you started. In 4 or 5 years you may want to open it up and clean the color wheel, but now is not the time!

Jesus, calm down there guy ....... not just grabbing a can of air and going crazy, that's the whole reason I'm asking, no need to freak out. Considering how dusty my machines can get in a relativity clean environment got me to thinking is all. Didn't come across much discussion so I figured I'd drop a question on here.

All that being said, and extreme over exuberance aside, I appreciate you chiming.

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post #4 of 14 Old 01-03-2013, 05:15 PM
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While airscapes was correct, he was a bit "spirited", shall we say, but I understand where he was coming from. He was wanting to stop you from creating more work for yourself.

Having worked on a number of projectors, both LCD and DLP, I can tell you that blasting air into the lamp chamber will (with great probability) drive dust INTO the Optical Chamber and onto the optics where it will show. If that were to happen, then you would have to open the projector, open the chamber and clean those parts. Not a fun job.

Now...unless you see any dust on the image itself, there is no need to do anything other than taking a brush or small vacuum to the vents and crevices on the outside of the projector. How often depends on how long it takes to see any buildup on the outside. If you don't see anything, then you're good to go. Any dust you may see on the front of the lens will bother you more than it will the image as anything on the front of the lens is outside of the plane of focus and will not impact the image. Unless, of course, it's really built up so thick as to reduce the image brightness, but I don't think you would have that problem, considering the "clean ship" you run.
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post #5 of 14 Old 01-03-2013, 06:35 PM
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What do you consider a "small vacuum"? Do you recommend vacuuming both of the vents? Intake and exhaust? Thanks.
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post #6 of 14 Old 01-04-2013, 05:34 AM
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I said "small" vacuum only for ease of use. If you have a vac with a hose, that's fine. Vacuum ALL of the vents, seams, the connections ports and around the lens. ANY opening is a place for dust to collect.
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post #7 of 14 Old 01-04-2013, 06:09 AM
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I bought my Optoma HD70 in Nov 2007. We have a clean, non-smoking house that still gets dusty after awhile. My HD70 is ceiling mounted. I just cleaned it last summer (2012) for the first time. Short answer: Unless you detect issues, these sealed DLP units are fine with as little attention as possible.
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post #8 of 14 Old 01-04-2013, 06:36 AM
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Just to clarify, having opened more than a few, they're not really "sealed". The imaging optics are in a closed chamber but it still has seams or cracks that dust can infiltrate if someone gets happy with canned air. But you're right in that they don't need as much maintenance as an LCD, as long as the environment is clean.
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post #9 of 14 Old 01-04-2013, 06:44 AM
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Quote:
Originally Posted by Sheridan1952 View Post

Just to clarify, having opened more than a few, they're not really "sealed". The imaging optics are in a closed chamber but it still has seams or cracks that dust can infiltrate if someone gets happy with canned air. But you're right in that they don't need as much maintenance as an LCD, as long as the environment is clean.

Exactly right.

I had to finally open mine and clean the color wheel. Still running like a champ!
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post #10 of 14 Old 01-04-2013, 03:59 PM
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Thanks Sheridan. How often do you guys vacuum your DLP projector?
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post #11 of 14 Old 03-03-2013, 12:49 AM
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I use my equipment a lot and tend to wipe over my plasma display once a day. Now I intend to get a BenQ DLP, and hearing about dust entering the DMD chip, I think I'm gonna be very careful lol.

I usually wipe over my displays with a micro fibre cloth everyday. What's the chances of dust getting into the chip doing this?

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post #12 of 14 Old 03-03-2013, 05:24 AM
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Hey Tyrone!
I have not looked at the users guide to see if this projector has a filter but being an entry level model, profits must be maximized by reducing cost. So is this projector going to be as good at keeping dust out of the light path as say my 2005 HC3000? Maybe, maybe not.
That said, if you dust your projector as you do your plasma on a daily basis when the projector is off (no fans running) you will be fine. I do little dusting of my projector, we have many cats that are all indoor cats, and my projector is put on a table when used so move on a daily basis. I have never had a problem with dust, but I do have a filter.
If the projector has a filter, remove it and vacuum it regularly. If you find the need to vacuum the vents, I would do the exhaust first before removing the filter if it has one, and then the intake. My fear is moving air in the reverse direction as when the projector is on.
I have had several projectors over the years and speak from experience, do not use compressed air of any kind for general cleaning.
Hope that helps!
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post #13 of 14 Old 03-03-2013, 07:53 AM
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Quote:
Originally Posted by airscapes View Post

Hey Tyrone!
I have not looked at the users guide to see if this projector has a filter but being an entry level model, profits must be maximized by reducing cost. So is this projector going to be as good at keeping dust out of the light path as say my 2005 HC3000? Maybe, maybe not.
That said, if you dust your projector as you do your plasma on a daily basis when the projector is off (no fans running) you will be fine. I do little dusting of my projector, we have many cats that are all indoor cats, and my projector is put on a table when used so move on a daily basis. I have never had a problem with dust, but I do have a filter.
If the projector has a filter, remove it and vacuum it regularly. If you find the need to vacuum the vents, I would do the exhaust first before removing the filter if it has one, and then the intake. My fear is moving air in the reverse direction as when the projector is on.
I have had several projectors over the years and speak from experience, do not use compressed air of any kind for general cleaning.
Hope that helps!
Thanks for your help there. Nothing I cant handle wink.gif

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post #14 of 14 Old 03-03-2013, 08:02 AM
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I put the PJ in carrying case, to avoid dust build up when I'm not using it.
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