Question about Optoma PK301 PICO Pocket Projector Projector Lamp

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Snow on my projector

This is a brand new projector . It worked for a few minutes then started to produce white dots all over the projected image . I recharged it ,but the problem persists .lots of snow.

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6ya6ya
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Posted on Jan 02, 2017

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caroldon
  • 17130 Answers

SOURCE: after start up and connection

The fault seems centered on to the DLP(digital light processor) , it can be the fault off the dlp or the relative circuit to the dlp.
Now this being a very sensitive circuit it will be necessary that you can concentrate to check on the outside.
Since the lamp and power was identified to be working perfect, the fault can be the mother board.
Now remove the mother board fittings, reset all connectors making sure that all connections are in order.
If the fault is staying on , you must try to swap the mother board/DLP unit. Possibility that there is an errors in the processing is quite high and must be confirmed by this swap...Please try this somehow as it is best to test to confirm before you replace. Contact Optoma if the working hours are less then 1000 hours or six months as it is covered by warranty.
Finally make sure that all the settings on the menu , brightness settings etc are correct.


Get some help on dlp projector repairs from the site below:

dlp
-projectors.html">http://www.ehow.com/how_5510388_repair-dlp-projectors.html


The advice/tip given is with the belief that you are competent. You must attempt to do it yourself only if you are technically/logically able, especially when dealing with delicate devices, damaging while trying to open, Probing electrical/electronic circuits with high voltage or delicate components. Since the advice given by me is with the inputs provided and not based on a visual inspection, there can be further reviews required in some cases.

Posted on Oct 07, 2010

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  • 2 Answers

SOURCE: Help! Our Optoma DLP

There is a lense behind the main focus lense that's causing this. Flakes of the colored tint are coming off causing white light to shine through. If you look at your projection, you can see black spots as well, these being the flakes that have re-located themselves. I dug into mine deep enough to diagnose this, to actually replace the little lense would be a little tricky. The unit has to be mostly disassembled. Also I haven't been able to locate a vendor who sells the part. Optoma wants you to send it in so they can do the repair, and won't part w/ these component level parts.

Posted on Nov 20, 2011

gmontgome595
  • 225 Answers

SOURCE: when projecting the screen has a lot of white dots

This is a dlp projector and has a bad DMD chip. Most models are very similar. Here is a video of a similar repair.

Posted on Oct 12, 2014

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1 Answer

SNOW LIKE PROJECTION WHITE DOTS


IF it happens right away, it could be serious. If it happens when it is on for a while, you might need to clean out the dust buildup so the bulb can breathe.

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This is a dlp projector and has a bad DMD chip. Most models are very similar. Here is a video of a similar repair.

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The DLP Chip is failing .The DLP or Digital Light Projection Chip contains up to 8 million tiny microscopic mirrors that tilt to project a digital image onto the screen. These mirrors are failing causing light and dark spots to appear.Unfortunately fixing this projector is probably going to cost more than buying a new one. Hope this helps.

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Suddenly, benq mx511 has white pixels showing up....multiplying every day...now the projected image consists of 50% snow.


It probably has the same DLP chip as my Mitsubishi television. The mirrors in the chip set get stuck and create the white spots. There is no way to fix this other than replacing the DLP chip.

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White dot for DLP Projector TV is not because of the light buy. It is caused by aging DLP chip ( DMD Chip.) Your TV DLP Part should be the following image:
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Check the post how to place it diy

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1 Answer

There are dots in my screen


ok firstly where are the dots? in the projected image? or what? if they are in the projected image you may need to clean the lens....

Feb 26, 2011 | Eiki LC-X6 XGA LCD Medium Venue Projector...

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The projector has several white dots on the screen. how can i fix it, it started with a few white dots then every time i used it, it doubles and doubles until it became many dots.


I have the same problem. I think we need a class action!

http://s1231.photobucket.com/upload/albums/m3231/?location=projector+spots

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My hitachi cpx 443 lcd projector recently has been projecting blue dots everywhere on the screen, how can I fix this or what is the problem?


How defined are the dots? Is each blue dot limited to the size of a pixel? I suggest you create a 3 slide image in powerpoint ..one slide completely blue, 1 red and one green. then project each image in turn and note what happens with the blue dot. My first thoughts are you have some pixels that are locked. Once that happens if are pretty much stuck with them. Optical it is impossible for a dust on the lens etc to cause them as if the picture is in focus at the screen the dust is way out of the depth of the field, sometimes you can focus the projector so that the point of focus is the lens surface but then the actual content will be way out of focus...none of which has anything to do with your blue dots. Regards Kevin Andreassend, ICE AV Technology Ltd, http://www.digitaldaytime.com

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InFocus


Hi there

That is a definate Mainboard replacement.

Must warn you that it could turn out to be a expensive exercise

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White vertical line on left side of screen


I had a smililar problem after taking it apart i realised that i had screwed my mount skrews into the video main board and cracked it along with a few soldered wires, if you havent done any physical dammage to it try a firmware upgrade

Jan 20, 2008 | InFocus IN72 Multimedia Projector

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