Question about Panasonic PT-52LCX66 Projection Television

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Hello there, I got this TV and it had been for over 5 years. Now the TV had two big color spots, one is green and one is red. So what can I do to repair it..?

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  • 171 Answers

Hi it sounds like your LCD chips are burning out and that is the reason you get this kind off side effect and the problem will only get worst if you don't fix this
what you need to change is called the OPTICAL BLOCK



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Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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You have a projection TV - basically a red, green, and blue spotlight is shown onto the back of an opaque screen that creates the color picture you see. The spotlights you are seeing is common for a TV of this vintage and type.

According to the user's manual, you should ideally be sitting no closer than 10 feet to the screen.

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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
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    • 30 IRE
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      • **Green: 0
      • **Blue: -4
    • 40 IRE
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      • **Green: 0
      • **Blue: -4
    • 50 IRE
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      • **Green: 4
      • **Blue: -4
    • 60 IRE
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      • **Green: 6
      • **Blue: -5
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      • **Blue: -18
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      • **Green: 4
      • **Blue: -9
Color Management System
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  • Red Tint: 0
  • Green Color: 0
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  • Blue Color: 0
  • Blue Tint: 11
  • Yellow Color: 15
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  • Cyan Color: -15
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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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I hope this helps,

Thank you,

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