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problem with image

Discussion in 'Projectors, Screens & Video Processors' started by rdesai, Sep 24, 2005.

  1. rdesai

    rdesai
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    I have a used infocus lp350 and it worked fine for about a week now I have evenly spaced black lines that appear. It is not a signal problem because it shows even on the logo screen. I dont know much about projectors so any help is appreciated.
     
  2. Anim

    Anim
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    Out of interest try zooming in and out and see what happens to the lines.

    Anim
     
  3. binbag

    binbag
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    Source?
    Connection?
    Display Mode / Resolution?
    Frequency & Duration of fault and what sets it off?

    All would be helpful to know.

    And did you know Infocus are doing exchange offers on the lp350 as they no longer support it?
     
  4. rdesai

    rdesai
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    the connection =dvi
    resolusion =xga
    it happens everytime i turn it on and does not go away (tried leaving it one for 3 hrs no difference)
    it occurs even when there is no source attached, it shows even on the logo screen. which tells me it is not a connection problem.
    and zooming does not change anything.
     
  5. Anim

    Anim
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    Can you post a screenshot, maybe that will help one of the pro's in here answer
     
  6. rdesai

    rdesai
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    here are some screenshots
    the last one is from up close
     

    Attached Files:

  7. PJTX100

    PJTX100
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    If that were an LCD PJ people would be screaming that you've got a very bad case of Vertical Banding. But as it's a DLP, I suggest you could be in pole position to get some hush money from TI to take those pics off the site...PJ ;)
     
  8. spidermaxx

    spidermaxx
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    To me, it looks like the quality of the cable is poor, or damaged, hence the banding effect. First thing I would try would be different connections to various devices to see if you still get the same effect, if you do, the PJ is at fault, if you don't, it'll be obvious which cable is defective :)

    Hope that helps ya, nothing worse than getting somrthing new, and it's not working how it should :(
     
  9. Anim

    Anim
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    Its not cables as he said it does it in the menu's too
     
  10. binbag

    binbag
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    Are the lines stable or do they move horizontally across the screen?
     
  11. rdesai

    rdesai
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    they are stable
     
  12. rdesai

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    i know its been awhile since i started this, but just thought i'd try one last time to find a solution
     
  13. cyberheater

    cyberheater
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    If it's under guarentee then get it replaced. If it's not then open it up and reseat as many connections as possible.
    Personally, I think you have a electronics fault and you'll need to get a new PJ as the cost of repair would be cost more then your PJ's worth.
     
  14. Gary Lightfoot

    Gary Lightfoot
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    If you invert the image, do the lines remain or go away? It could possibly be the formatter board, so as Cyber says, will have to go away for it to be replaced/repaired. His suggestion of reseating any connections is a good idea provided you don't break any seals (normally a sticker) and invalidate the warranty.

    Gary
     
  15. rdesai

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    the lines stay even when its inverted. I opened it up and reseated the connections no change. thanks for the help. any other ideas?
     
  16. Kalos Geros

    Kalos Geros
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    Kick it??? LOL

    when you horizontally invert the picture, are the lines staying in the very same place or are they offset from their original position...this might reveal that the fault is in electronics, and not the DLP chip control itself...
     

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