Question about Panasonic PT-47WX49 47" Rear Projection Television

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Green Color Tint

I have an older Panasonic Rear Projection HDTV and I just replaced the amp IC's - now the color is off, I can't get a vivid picture. It seems as if there is a greenish tint that I just can't get rid of - - - any thoughts on what this might be?

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  • carlohanna77 Feb 01, 2008

    yes, i actually just bought it and moved it from the seller's place to my place - - however I am not sure if that is the issue. i am in the office right now, but as soon as I get home I will give that a shot.

  • carlohanna77 Feb 01, 2008

    I just went home and tried this out, it didn't work. It is not just the corners of the tv - the whole color is off - - they are not bright and white images seem to have a greenish/orange tint - - people faces look more orange than the normal skin tone - - color is just not right - any other thoughts? could it be a problem with the bulbs?

  • carlohanna77 Feb 03, 2008

    i have been playing with the all the color adjustments, none of them seem to improve the situation.

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I had a similar problem with my tv. Sometimes it depends where the tv is located, have you moved it? Magnesium in the earth caused my tv to have greanish tints in all four corners of my tv. Try moving your tv forward, backwards, or side to side. Let me know if this works.

Cynthia

Posted on Feb 01, 2008

  • Cynthia Charczenko
    Cynthia Charczenko Feb 01, 2008

    Try it and let me know. The chemical makeup of the earth does affect the picture. I moved my tv forward four or five inches and the green on every corner went away. Let me know how it goes.

    Cynthia

  • Cynthia Charczenko
    Cynthia Charczenko Feb 02, 2008

    Try going into the menu options and working with the brightness of the "picture". It might be "brightness" or "contrast". Try the opposite ends of the spectrum and see if that works. Let me know how that works.

    Cynthia Charczenko

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1 Answer

Green tint on picture. Cant adjust with tint or color from menu


My rear projection was doing the same thing. I have a mitsubishi and went into the video/audio set up. When I clicked on video it brought up brightness, tint, color, etc... Not sure if yours is set up the same.

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1 Answer

Screen has green tint, it is an LCD 42 inch


First of all, that is not an LCD tv. It is DLP, which is a common mistake because the picture is very similar. DLP tv's use a high-power lamp that reflects light off of thousands of tiny mirrors into a spinning color wheel which gives the reflections color. Each little mirror is one pixel, which can be any color depending on the hole that it goes through on the color wheel. The color wheel may be spinning slower than normal, which could make all of the light go through the green filter on the color wheel, and give your screen a green tint. Have a trusted mechanic take your tv apart and dust the inside. If that doesn't fix it, you may need a new color wheel or bearings for it (that help it spin). You should not pay more than $200 for a bearing replacement on this tv.

Thanks for asking.
-Josh

This pic might help your understanding.

http://static.howstuffworks.com/gif/projection-tv-1-chip-projector.jpg

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Panasonic pt43lc14 no red color. picture is good. cannot get anything to look normal color after trying to adjust color/tint/picture etc. Have alot of blues and yellow, and brown. seems like no red.


It appears that your light engine is broken, I have the same problem. Have you recently changed the bulb with a non-panasonic part bought on the internet. I did this and think thats what caused the problem. I believe the new bulb burn at a higher temp thus causing damage to the Light engine filters

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Sounds like your main control board or the color wheel.

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Picture has lots of green


i think that your TV picture tube has a problem..tnx

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Screen has too much green all of a sudden


Try balancing the tubes out, turn your color all the way down and the brightness in the middle, then find the focus block, it will be a block with 6 controls one row will say screen the other will say focus near the picture tubes, adjust the screen controls(one control for each color) until the picture has a good black and white look to it, then turn your color up and it should look fine. This is how i balance out the picture. But there is another method that allot of techs use, the other method is to adjust the brightness up until you see what is called retrace lines it is a jagged line going down the screen, once you see these lines back the adjustment down just until they disappear. Do this for all three colors. This method works but on an older set can throw the white balance off because of tube wear.

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Picture calibration settings for 42lg70


Picture Menu
Picture Mode: Expert1
*Backlight: 16
*Contrast: 83
*Brightness: 53
Sharpness: 50
*Color: 55
*Tint: 0
Expert Control
  • Fresh Contrast: Off
  • Noise Reduction: Medium
  • Gamma: Medium
  • Black Level: Low
  • Real Cinema: On
  • TruMotion: Low
  • Color Standard: HD (N/A w/HDMI)
  • White Balance: Warm
  • **Method: 10-Point IRE
    • 10 IRE
      • **Red: 1
      • **Green: 2
      • **Blue: -16
    • 20 IRE
      • **Red: -6
      • **Green: 0
      • **Blue: -7
    • 30 IRE
      • **Red: -5
      • **Green: 0
      • **Blue: -4
    • 40 IRE
      • **Red: -8
      • **Green: 0
      • **Blue: -4
    • 50 IRE
      • **Red: -4
      • **Green: 4
      • **Blue: -4
    • 60 IRE
      • **Red: -6
      • **Green: 6
      • **Blue: -5
    • 70 IRE
      • **Red: -8
      • **Green: 3
      • **Blue: -10
    • 80 IRE
      • **Red: -8
      • **Green: 7
      • **Blue: -16
    • 90 IRE
      • **Red: -9
      • **Green: 5
      • **Blue: -18
    • 100 IRE
      • **Red: -10
      • **Green: 4
      • **Blue: -9
Color Management System
  • Red Color: 0
  • Red Tint: 0
  • Green Color: 0
  • Green Tint: -15
  • Blue Color: 0
  • Blue Tint: 11
  • Yellow Color: 15
  • Yellow Tint: 2
  • Cyan Color: -15
  • Cyan Tint: 0
  • Magenta Color: 0
  • Magenta Tint: -1

lg70 nice tv excellent processor just to bad there is no intensity control on color management oh well still better than what the three s are pushing block out the hype lg will be number 1 in a few years haters are starting to come around and well leds coming,

p.s. i dont work for lg just tired of losers bashing stuff because they dont own it.
im isf certified those settings are right on the money straighter than a ruler

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SOUNDS LIKE U HAVE LOST THE GREEN OR BLUE COLOR GUN

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Check the coolant in all three crt's as chances are it is contaminated (should be crystal clear). If brown (beer color), replace coolant in all three crt's and perform convergence adjust. Picture should be like new!!!

Good Luck!!!

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