Dust Blobs in Panasonic AE 8000U - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 6 Old 06-07-2013, 10:18 AM - Thread Starter
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I've had an 8000U for a few months, my first projector I've owned, over-all satisfied for an LCD projector in its price range, with all the pros and cons that come with LCD. However, recently I've noticed 4 light blue dust blobs appearing. In low contrast, murky scenes you see them big time, in high contrast, bright scenes they're invisible. Isn't the light path supposed to be sealed? Is there a safe way to clean these out of the projector at home without the hassle of bringing it in to a Panasonic repair shop?

What are the consequences of waiting?

Thanks for any advice!
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post #2 of 6 Old 12-23-2013, 10:59 PM
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Hi I to have a Panasonic AE 8000U (UK Version 6000), its done 350 hrs has developed the same blobs you describe !

Did you manage to confirm they are in fact actually "dust" ? did you mange to get rid of the problem?

Paul UK

Epson 9300 (5040 in the US)
Samsung UE65KS7500 65" 4k tv
oppo BD 203 ,MR DVD + BD ,
Onkyo TX-RZ810, BT YouView box 10 ft 21.35 screen
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post #3 of 6 Old 04-08-2015, 11:23 AM
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Anyone figure out how to get rid of dust blobs on this ae8000u?

I had my first one show up recently - at just over 500 hours. It's so minor I had to point it out to my wife, and she said I was crazy for worrying about it - but never the less, I'd like to get rid of it.

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post #4 of 6 Old 04-08-2015, 12:09 PM
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Quote:
Originally Posted by Archaea View Post
Anyone figure out how to get rid of dust blobs on this ae8000u?

I had my first one show up recently - at just over 500 hours. It's so minor I had to point it out to my wife, and she said I was crazy for worrying about it - but never the less, I'd like to get rid of it.
There are a couple threads discussing dust with LCD's and pannys, but I couldn't find anything specific to the 8000

https://www.avsforum.com/forum/24-dig...-path-lcd.html

https://www.avsforum.com/forum/24-dig...ix-ae2000.html
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post #5 of 6 Old 04-13-2015, 11:07 AM
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I had dust blobs with my 8000 and I've cleaned them. Now I have another dust blob, again!

To clean a dust blob YOU HAVE TO OPEN YOUR PJ:
Take off the top cover: open it and while pushing the arm in the direction inside projector, pull out from the groove.
Take off the lamp (2 screws).
Unscrew the 9 screws on the top side and 1 screw on the rear side.
You don´t need to remove the Board.

Some tips:
Try to focus the blob by defocusing the PJ (either clockwise or ccw). If you can, then it is a dust blob.
Open your PJ in a very clean enviroment.
Dust on the green panel/polariser -less/no green in this place- will give you a magenta blob (with a white signal). Google for images of "additive color mixing" (or see my avatar).
Do not mess with the ribbons or the clamps wich holds them in position, they're very delicated.

These links are for another Panasonic PJ but they will serve
https://www.avsforum.com/avs-vb/showt...1#post16241911
https://www.avsforum.com/avs-vb/showt...3#post12501773
Following the above instructions it's easy to clean.

Good luck.
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post #6 of 6 Old 10-31-2016, 12:31 PM
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I have several red/magenta blobs when my screen is white. I've tried the cleaning methods mentioned already and got a slight improvement, but they are definitely still there. Can anyone offer any additional advice?
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