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lcd projects inverted color

Discussion in 'Projectors, Screens & Video Processors' started by addy, Jan 13, 2005.

  1. addy

    addy
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    I have an NEC LT220 that starts out projecting fine and then in 10 or 20 minutes the picture starts flickering and then the colors look inverted (my blues look magenta, yellow looks green, etc.)

    Has anyone had this problem? Some people ask me if the bulb needs replacing, and it is old enough to replace, but that can't cause a problem like that, can it?
     
  2. LV426

    LV426
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    I don't see any way in which an ageing bulb can cause what you are seeing. More likely an ageing component elsewhere. But I'm not expert enough to offer more.....
     
  3. KraGorn

    KraGorn
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    My guess would be a component is overheating, hence the time delay from power-on to the problem occuring, also the 'flickering' could indicate shorting or other circuit breakdown.
     
  4. Cheddies

    Cheddies
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    when you turn it off/on quickly does it go back to normal/stay screwed/normal for a bit?
    that should help to tell you if it is heat related
     
  5. addy

    addy
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    I think it is heat related because if I turn it off and back on the colors are still wrong. It only flickers, though, while the color is changing--maybe 30-60 seconds. I've sent a projector back for repair before and we had to pay a lot for them to even open it, and then to fix it, they we going to charge more than it would have cost to get a new one. If someone has seen this problem before and had it successfully repaired, please let me know how much it cost.
     

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