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New install - Red tinge on right side of image - please help!

Discussion in 'Projectors, Screens & Video Processors' started by Godfather, Nov 22, 2003.

  1. Godfather

    Godfather
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    I've just installed my Sony VW12 with a LMP mount and Nexnix screen - very impressed by the setup so far (miles ahead of my dad's Panny AE300). I have however noticed a slight red tinge on the right half of the image - it's most obvious when playing a black and white film (of which I've got many) or when displaying a plain grey background. Any ideas what's causing this and how I can get rid of it?

    Many thanks!

    I'll post some pictures of my setup later.
     
  2. Godfather

    Godfather
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    FYI I'm using a Pioneer 757 DVD player feeding the pj with belden component cables. The red tinge is there regardless of signal (NTSC, PAL, progressive scan or interlaced).
     
  3. Gary Lightfoot

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    Sorry to hear of your woes.

    It sounds like an LCD colour uniformity issue. This can occur in any LCD, even the DILA. The one at the Event recently had a similar issue, though it wasn't immediately obvious until it was pointed out to us.

    It looks like it'll have to fixed/replaced.

    Gary.
     
  4. RTFM

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    Gary's right. LCD projectors have a hard time producing an even grey field across the whole image.
    DLP units are very uniform in this respect and are a better choice for someone watching a lot of B&W material.
     
  5. Godfather

    Godfather
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    Thanks for the replies guys. Not I want to hear but now that I know what the problem is, I'll get it fixed/replaced.
     
  6. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    There are service menu settings that are quite complex and time consuming to use. These can fix the uniformity issue on SonyLCD's. William Wedge used them to do his own VPL11HT for the Event. It's a very time consuming process. You are likely to find that every unit you get will have some form of issue like this at different intensity levels. IE it could be fine at 100ire but bad at 20ire.

    Once you get one that is not really visibly a problem on programme material I'd keep it.

    Gordon
     
  7. Godfather

    Godfather
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    Gordon,

    If it's something you can fix, I'd be more than happy to pay you for a visit (and to do ISF calibration at the same time). Saves me the hassle of sending it back to Sony. Please let me know.
     
  8. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    It depends how bad it is how fixeable it is. I sent back a VPL11 when I worked at Stereo Stereo as it had this issue. The replacement did the same thing but not as bad.

    The problem with fixing it is that there you have to do the equivelent of 100+ greyscale calibrations at different points on the screen. This is MAJOR labour intensive. William only did his as he wanted it to look great for The Event. I think it took him a day or something to do. The cost for me to sit in your home for a day doing that would be nuts. I'd advise getting it swapped out instead.

    All the best,

    Gordon
     
  9. Godfather

    Godfather
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    Thanks for the advice. Sounds like it has to go back. :(
     
  10. Gary Lightfoot

    Gary Lightfoot
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    "The cost for me to sit in your home for a day doing that would be nuts."

    Dry roasted or salted? ;)

    Gary.
     
  11. Gordon @ Convergent AV

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  12. Gary Lightfoot

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    That explains the expense then. :)

    G2
     
  13. Godfather

    Godfather
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    Sony resolved the problem and my black and white films look (nearly) perfect now.
     

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