Question about Sharp DT-100 Multimedia Projector

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DT-100 stopped working all the sudden

Last week while watching a Christmas movie our Sharp DT-100 shut down without warning right during projection. Now when the projector is powered on the lamp attempts to light, which it doesn't, so the lamp LED blinks (green) while it tries to warm up. The LED goes solid for a second and then starts blinking green again. This happens about twice before the unit shuts down, illuminating both the lamp and power LEDs (red). I tried resetting the bi-metallic fuse (breaker), but it wasn't tripped. This is when I realized we had a problem. We have around 800 hrs on our lamp(not even close to 1/3 the spec life of the lamp). Any help would be appreciated. I don't really want to drop over $300 for a new lamp only to find out that doesn't fix it.

Thanks so much.

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  • Snouzer Mar 16, 2009

    Same Thing again, this our second bulb that blew up with no warning in less than a year with the dt-100. I like the unit but I'm not spending more $$$ if its going to happen again.

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2 Suggested Answers

dhecom
  • 233 Answers

SOURCE: 1-Projector is in standby, so I hit the power

I think it's capacitor issue on the power supply board. open it, look for power supply board and fine bloated capacitor and replace it.

Posted on Feb 15, 2010

  • 269 Answers

SOURCE: Hi Guys,

look at your lamp carefully to see if you see bubbles in the mirror or anything like that. if so then your power supply/ballast is bad.

Posted on May 24, 2010

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Check out the Power supply to the lamp . It must not be high . . Check if the voltages are correct to the lamp's unit and it's PCB [printed circuit board]. I recommend using a service manual .

Check for manual here please :
Sharp DT-100 Multimedia Projector manual .

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Here is how to replace a projector's bulb correctly :

1:Make sure that your power switch is off and that the power cord is unplugged from the electrical socket.
It is also wise to unplug any other cables and label them in order to restore them in the right way once the lamp is replaced.


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rate please !


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Hi There Not sure what you visually describe as "blurry" This could be two things - a typical white screen will waste all the definition and brighteness unless you sit in a dark room Our ICE Digital Daytime Screens will take any projector and make the image up to 2000% brighter with a resolution reseolving ability of 20 million pixels. So in this case the definition you are alluding to could be lack of contrast, image definition due to insufficient light from the projector relative to the lux level of the room. Alternatively the lamp could be getting old. The brightness of a lamp falls off rapidly so as you use it more and more the image will become duller and duller contributing to a "blurry" or image lacking in punch etc.
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