Question about Panasonic PT-AE900U Multimedia Projector

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I have a PT-AE900E & have developed lines running vertically down the screen evenly spaced apart. What is causing this??

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  • Stuart Leach Jul 17, 2008

    The screen when loads doesn't show the lines, only when watching DVD? Is it the motherboard??

  • rmille38 Aug 20, 2008

    I now have the same problem. After replacing the original lamp, I watched 1 movie and the screen was perfect. The next time I turned the projector on and watched a movie, the evenly spaced vertical lines appeared. This is not the input because it also shows up on the blank (blue) screen as the upper-right input message (HDMI, PC, Video, etc.) shows the same pattern. Seems like every other vertical line is now out or severely dimmed rendering anything unwatchable. Not sure what component is driving this but I know it's not the lamp as I put in the old lamp that was noticeably dimmer than the new one (after 2500 hours) but still had the vertical line problem. Any thoughts? (out of warranty period) Thanks.

  • homer70 Sep 08, 2008

    I have the same problem. I was on vacation for two weeks and since then I have evanly spaced vertical lines in color magenta. they are there no matter what kind of input signal is chosen. I think it has nothing to do with the lamp, but I want to make sure, before I spend money on a lamp and then it is something else.

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2 Answers

I had the same problem. I put on eof those cheap little grey plug adapters that turn the three prong plug into a two prong plud (eliominatinghte ground wire) and it solved the problem.

Posted on Sep 01, 2008

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  • 115 Answers

Hello,

If these lines are coming with the input signal then you have to check the Cable connectors.

If these lines are coming without the signal then check the panels and service then recheck.

Regards

Viren

Posted on Jul 17, 2008

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1 Answer

White vertical lines are appearing at even spacing across the width of the screen. Any idea how to fix ?


most of time this is happening due to the dmd connector & main board .some times dry solder occur .but you have to do carefully or by soldering expert

Mar 10, 2016 | NEC NP110 Projector

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My Optoma HD 200x projector has developed constant evenly-spaced white vertical lines on the image at all times...if it is the motherboard, where can I get a replacement from?


I has his problem with hd200x. Out of warranty so i opened it up, pressed down on the metal plate above the motherboard (left hand side with lens facing away form you) and hey presto, problem solved. been running for hours since with no problems. Might be a loose connection from hanging from a ceiling mount im not sure but its fixed!

Jul 05, 2012 | Optoma Projector Hd200x

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I own a panasonic pt-ae900e i have notice a thin uneven green transpairant line in the middle of the screen lamp time 1987 hrs


Experience:
There is three LCD (liquid crystal display) in your projector when one LCD faulty he display a line some time flickering line one or two lines. Due to other two LCD is working well so this line is looking transparent. If BLUE LCD faulty than the line color is very light green or yellow.

Second option is this that your projector lamp life is near to end and after 2000 hours projector is very dirty inside and need service.
(service of LCDs and other parts of projector is a very technical job and I don't know you can do it or not)

Jan 16, 2011 | Panasonic PT-AE900U Multimedia Projector

1 Answer

Vertical lines


Hi burton29

This is a common Mainboard failure with all makes and models of Projectors.

Will unfortunately either have to be replaced or repaired by a certified technician.

Thanks for using Fixya

May 13, 2008 | Panasonic PT-AE900U Multimedia Projector

1 Answer

Even spaced vertical lines across the whole screen on all sources


If you are handy with SMT rework it might be possible to fix this problem. The heat spreaders on the LCD drivers are insufficient to cool the chips and they will get hot enough to reflow the solder and cause a short on some of the pins. I think it most often happens after bulb replacement since bulbs near their end of life are dimmed and run cooler. After replacing the bulb the bit of extra heat is all that is needed to push them over the edge.

The problem also seems to be most prevalent on the green IC since it shares a heatsink with red and has a smaller area to dissapate the heat into.

If you pull the heatsink you will probably be able to see the short with careful inspection. The pitch is very small - 0.6mm but I was able to wick, clean, and reflow one side of my green IC and the problem went away.

I am planning on adding some additional aluminum stock to the heat spreaders with some thermal adhesive to give the chips more cooling.

By the way the very common rattle noise in these projectors is not a fan but the auto iris. You can unplug the iris servo from the mainboard and disable the auto iris in the menu to work around the problem or you can replace the iris servo for about $75, again, if you are handy with that sort of thing.

Dec 19, 2007 | Panasonic PT-AE900U Multimedia Projector

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