Im using sanyo pdg-dsu21b model. right now, my projector has this little white bright spot all over the projection. can anyone please tell me whats the problem with my projector and what is the solution for the problem. thanks!

Sanyo PDG DXL100 1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.I supply the DMD chip and the price is USD200 We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel, motherboard, powersupply ... with high quality and competitive price. any questions, feel free to contact me have a nice day! Jerry Lampdeng Limited

Not many funguses can thrive under the intense heat from the lamp. The Ultraviolet light that the lamp produces reacts with the plastic lamp housing and deposits a film on the optics and color wheel. They can be cleaned with water. I would not use any chemicals on the optics or color wheel since they leave a residue behind.

check your HDMI/VGA cable this is sometimes cause the color lost. change it or try another cable...

1,white spots appeared on screen,means the DMD is broken,you need a new DMD.
2,the projector running off after only a few minutes,means the Inductor (Sensing element),near the Color Wheel. Use a cotton swab moistened with alcohol to wipe the Inductor.

Have a good day!
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DMD is not work well , you need a new DMD ,
DMD --an imaging function

Yes you can plug in your xbox into it. A manual can be found online for a price but to find a free one will take some digging. Black spots are usually a dirty lens but with white spots there will have to be more digging.

You have a bad DLP/DMD chip. You'll have to have it repaired. You may be able to do it yourself if you are handy. Cost a few hundred. You might be able to get the part from Sanyo it will cost more. Many DLP chips have a three year warranty. I have done it to some mitsubishis I pulled one apart and got the chip number then ordered from China.
http://www.youtube.com/watch?v=V_uUH-xHKkU

It's probably you have a busted DMD chip, have your technician replace that, better yet buy a new projector because replacing that chip costs almost a brand new unit.

Possible that the lamp had crossed the time limit and so needs to be replaced.
please check the manual for the details of this error.
click on:

http://us.sanyo.com/dynamic/product/Downloads/PDG-DSU30%20OM-41421237.pdf

You need to send your laptop signal to your projector by pressing the FN key and the key that says CRT/or an icon of a screen (this is located at the top of your keyboard). 3l toggles will give you different images. i.e. projector image only, projector image and laptop image or just the laptop and not projector image.