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moviefan
Joined: 06 Nov 2008
Posts: 8
Location: NYC
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| Posted: Mon May 04, 2009 4:15 pm Post subject: Overheating Optoma DLP - FIXED! |
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Hi All,
I am a (once-again) happy owner of an Optoma DLP EP 757 Projector.
For the past year, the projector had been overheating and shutting down. At first, if I kept the room below ~75 degrees F, it would be fine, but it got worse over time until it would always shut down after less than an hour of use. I searched the net but could not find any solutions, so I went ahead and attached a 3" fan to the intake vent on the back. I used a radioshack 120 V cooling fan:  and some 3M adhesive foam tape. I did have to rig up a switch and plug, but that was fairly easy with parts from the hardware store lighting department. And the verdict? Perfection! We had a 5 1/2 hour movie marathon and no shutdown whatsoever. The fan does make some noise (wind noise) but I find that, since it's constant and does not fluctuate, I don't notice it after a few minutes. Also, if the movie sound is at cinema levels, I definitely don't hear the fan at all. Note, RS also makes 12V and 5V fans. I went for the 120V because I had power sitting at my projector -- for my HDFury1 -- and I didn't want another bulky power adapter up there. I hope this info helps.
Best,
Sam
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moviefan
Joined: 06 Nov 2008
Posts: 8
Location: NYC
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| Posted: Tue Sep 01, 2009 8:11 pm Post subject: |
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Quick update:
My fan fell off!
It turns out that those foam adhesive strips, that seem to bond like crazy, don't do so well in the heat.
I ended up pulling out the trusty drill and screwing the fan on to my projector. So I'm back in business and there's no way that fan is falling off now. 
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Ben851
Joined: 13 Sep 2008
Posts: 221
Location: Ottawa, Ontario
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| Posted: Wed Sep 02, 2009 11:51 am Post subject: |
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| moviefan wrote: | Quick update:
My fan fell off!
It turns out that those foam adhesive strips, that seem to bond like crazy, don't do so well in the heat.
I ended up pulling out the trusty drill and screwing the fan on to my projector. So I'm back in business and there's no way that fan is falling off now. |
Funny as I read your original post I was thinking "that won't last very long"  Not ragging on you though, the reason I knew it wouldn't work is that I tried something similar!
I'm curious to know if this is the OEM bulb that came with the PJ?
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moviefan
Joined: 06 Nov 2008
Posts: 8
Location: NYC
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| Posted: Thu Feb 25, 2010 11:42 pm Post subject: |
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| Ben851 wrote: |
I'm curious to know if this is the OEM bulb that came with the PJ? |
Hey, I just noticed that I never replied to that question mark.
Yes, the bulb is OEM.
and five months later, my MacGuyver rig is still working just fine.
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