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This could be a crack in the fan assembly where one or more blades of the fan contacted the housing. It is likely louder now due to the fan being out of balance. Take a look at the fan and see if it is missing any blades or parts of blades. If so, it needs to be replaced in order to prevent your projector from overheating.
I have sort of the same problem...there was a loud snap(kind of electical spark like) then the unit started humming loudly which changes sound as you move the unit around. The picture remains clear and the fan is quiet in shut down mode...still the wheel you think?
It's likely the fan or the color wheel as both of these spin. I've given a suggestion for another user which in part may be applicable to you. It can be found here by using the search phrase- Blue tint on projector or by clicking my name and the appropriate topic.
Hi, I'm not sure if it's the same problem I had.. I had it on picture mute, for maybe 15 mins, which may not have been a good idea. While it was muted, it made a sparking sound, and then a very loud grinding noise. When turned off, the lound noise stops, and the fan continues as usual for about a minute. As soon as it's turned back on, the grinding noise is back. But the logo seemed to display ok.
I took it in for repairs, and they said they needed to replace the color wheel to fix the problem.
Review Date Monday, 12th of September, 2005 -->
What's Hot User-friendly, built-in DVD player, high-throw ratio lens, fast power/cool down
What's Not Fan operation is quite audible, native resolution of just 480p
The Final Word A perfect coffee table companion
# This product is no longer available directly from the manufacturer. It may be
available in retail and distribution channels, or second hand. The price
displayed is the price at review time and the last available recommended retail
The DV10 has a futuristic-looking outer casing and two internal
speakers located behind a silver grille mesh at the rear. Heat is
removed through its side ventilation and the internal fan has a noise
level of 27dB, which is comparable to a loud computer and quite
distracting when watching movies at low volume. At 368 x 117 x 273mm,
the unit is small enough to permanently and inconspicuously reside on a
this is from a review .
it sounds like that the fan needs to be cleaned the sound you hear is normal but if it sounds like its racein the moder might be on its way out if you have a can of air used to clean a key bored i would try to clean it out with that if not take it to a repair place to see if they could look at the moder
it is the color wheel i have a similar problem and am looking for the part, the color wheel is a small electric motor that spins at a high speed and it can go bad. which will lead to the horrible squeel/hum/buzz.