Question about Dell 4100MP Multimedia Projector

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Projector signal goes bad after 25 minutes

Our church uses a Dell 1400MP projector. We use two sources for our dvd need, computer and dvd player. We never have a problem with the VGA source on the computer. After the projector has been on for 25 minutes, the image from the dvd player source develops over a dozen vertical white lines.

We have switched out the dvd player and tried s-video, video composite and RGA component cables. I just don't understand why the signal from the computer will still work. I thought it might be a fan issue or a mainboard issue.

Laura Ellis

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It appears the projector was over heating. Why it affected the DVD signal and not the computer signal, I do not know. The other confusing thing was the projector was hanging off the ceiling and should have had plenty of circulation. When I climbed up to check for excessive dust, I found that the lens cap had been placed over the intake vent. I blew off the dust and removed the cap. After running the projector for an hour, it appears that the problem has been solved.

Posted on Sep 23, 2008

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