Question about InFocus LP70+ Multimedia Projector

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Wonderwall projector has black spot in middle of screen

Wonderwall projector plays fine for about 3 minutes before a black spot begins to appear and grow larger. What's going on?

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  • laura_chr763 Aug 10, 2009

    The spot does go away each time the machine is turned off, cools down, and is turned back on. The spot begins as a dark patch and then becomes a larger and larger dark black circular spot. There is a faint ring around the edges of the spot. The spot is solid black and not pixelated. It almost appears that there is something on the lens blocking the image, but there is not. The spot is not in the center. It appears slightly to the upper left side of the projected image.

  • jasbo
    jasbo May 11, 2010

    does the spot go away and restart every time you turn it on, or has it happened once and is permenant? is the spot circular? is it in the middle of the screen or off center? is it dark black or translucent? is it pixelated or blends at the edges? let me know so i can fully understand the situation and be able to help you better.

  • ali_tariq199
    ali_tariq199 Dec 27, 2012

    i have a medialy h300-tv projector i just got it on christmas, its brand new when i hooked it up to my pc with hdmi it was working until 5min then i can see a litte black blob almost like if the screen was broken, my pj has a 5incg tft lcd screen inside its not a dlp,the blob is kid of like when you drop a screen and it brakes and you can see a blacked out area like dead pixel but its not cuz it goes away when i turn it off and turn it on again comes back aftetr 5min and its out of coloured for the first 5min then it turns into the thing please can you help its a new pj i dont know what can go wrong ?

  • ali_tariq199
    ali_tariq199 Dec 27, 2012

    i have a medialy h300-tv projector i just got it on christmas, its brand new when i hooked it up to my pc with hdmi it was working until 5min then i can see a litte black blob almost like if the screen was broken, my pj has a 5incg tft lcd screen inside its not a dlp,the blob is kid of like when you drop a screen and it brakes and you can see a blacked out area like dead pixel but its not cuz it goes away when i turn it off and turn it on again comes back aftetr 5min and its out of coloured for the first 5min then it turns into the thing please can you help its a new pj i dont know what can go wrong ?

  • Femi Elufiede
    Femi Elufiede Mar 13, 2019

    When projector comes up with a growing spot black there is no two ways to it. it is overheating. your cooling fan may be rolling but trust me is not cooling it. Solution: Replace the cooling fan if possible a higher speed and it will never repeat itself. 100% banker

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Tranlucent dark spot on Optoma image. Looks like something is on the lens.Off center--top to bottom. Cleaned lens, blew out case, changed bulb, still with dark spot.

Posted on Nov 15, 2009

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My guess is that you have the projector flat on something? I did that and got the spot right away. The directions says NOT to lay flat, you must use the arm/handle so it will not overheat. Next time you get the spot pick the projector up and it should go away in about 10 seconds. It is overheating. Use the arm/handle, if you need it to sit level place a wii game or something similar size in the back to level it out.

Posted on Dec 26, 2009

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Yes it is true the projector needs to "breathe" so no you cant lay it flat you must elevate it using the silver handle. The spot will go away, speaking from experience!!!

Posted on Apr 09, 2010

  • Ona Ramsay Oct 20, 2018

    I have my projector on a stand& still getting black blob .... wonder if cooling fan could be the issue???

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We just bought an ANDROID Projector. It has the same black spot. We took it out of the box, plugged it in, and turned it on. It worked good for a couple minutes then started to get the black spot in the middle of the screen that got larger and larger until it covered most of the screen. We turned it off for about 5 minutes. Then everytime we turn it on now it gets the black spot after a few seconds of running. It wasn't laying flat so it had good ventilation. It doesn't have anything blocking it. Don't know what's wrong with it. Can someone help???

Posted on Aug 20, 2016

  • Robert Wisler
    Robert Wisler Feb 13, 2018

    I have the exact same problem

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I\'m having the same problem. ? Big black spot that gets bigger and bigger. Turn off and back on and its gone but comes back a couple mins later. It has been beaten well and even given an extra fan to help ......What do i do

Posted on Oct 03, 2014

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Your projector is overheated. Make sure you do not have anything covering the fan, and that you power source is connected directly to a wall outlet, not a power hub.
Most of the people cover up the fans so that it wont be as loud. You can simply find these silencers on amazon, but the air will still flow to the projector.

Posted on Feb 27, 2012

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What??The directions say do NOT lay flat, and use something to level it out. I'm sorry but I just cannot make sense of that!!!!

Posted on Jan 20, 2010

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Posted on Jan 02, 2017

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