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Re: I have a dell 3300mp projector hooked up to a dvd...
Sound form your projector? or from your speakers? set the volume of your projector to maximum. then check your connection cables if good your speakers if working. check all your component have pwoer supply.
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HI.... ........YO U NEED A ADAPTER WHICH IS CALLED MINI-DIV TO VGA ADAPTER....THIS ADAPTER WILL HAVE TWO PORTS ONE PORT IS CALLED MINI-DIV PORT ANOTHER PORT IS CALLED VGA FEMALE PORT (WIDER THAN DIV PORT)..NOW PLUG THIS DIV PORT TO YOUR MACBOOK AND THE OTHER ONE IN YOUR PROJECTOR ...YOU MAY ALSO NEED A VGA CABLE..
you cannot pass a signal through a usb input. USB inputs on a computer are usually used from firmware upgrades or mouse control depending on projector.
Judging by the mains hum noise and now shaking it sounds as if a motorized component has broken.
Humming could have been the initial jam, then shaking the damaged part attempting to rotate.
Maybe check your cooling fan blades?
How old is your unit and or how many hours are on the lamp?
As the lamps age they run hotter and it could need replacing.
If so, buy just the bulb instead of the lamp assy and install it yourself.
my advise is to get a new one or try ebay - i got my dell 3300mp NEW in box for under $400 - and have looked at other projectors there are very good deals on ebay but make sure you read the entire listing
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