Question about Philips 50P8341 50" Rear Projection Television

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Too much red

Everything has a red tint blue and green are muted. could this be an ic prob or coolant prob. If so step by step instructions would be helpful along with pics if poss. have new crt boards on the way

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  • David Beck
    David Beck Apr 05, 2008

    so I should hold off on replaceing coolant and ic

  • David Beck
    David Beck Apr 16, 2008

    Ok replaced both red blue crt boards... Still too much red. have green now but blues are mutted or green and a blue halo around some whites.

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  • Philips Master
  • 19,396 Answers

You should get rid of the problem when you replace crt board, that is usually the cause.

Regards

Posted on Apr 05, 2008

  • Ginko
    Ginko Apr 05, 2008

    Well, if you have already the crt board coming, in any case the easiest thing to do is changing the crt board.
    From your description I do not think it is a coolant problem , when you have to replace the coolant for one color, you get kind of blurred images too, not only one color that is missing.
    It could also be a convergence problem, but here as well, when convergence ics are gone you usually get a additional phoenomena than just one color missing. If you bought already the crt board, I suggest replacing it first. Eventually you can test the ICs pico fuses for continuity. Tey are often located under of the heatsinks which support the ICs.

    Regards

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1 Answer

My tv has a red tint to it not sure what to do?


Projection tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around video.

Pic of a set that needs the fluid changed. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

BEFORE

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Set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

AFTER

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724bcba.pngSolution #2 - CRT FLUID FIX


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

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Why does the tv look have a red tint all the time


The CRT coolant is needing replacement in the blue and green CRTs which make the red dominate. You can see the coolant is bad by looking in all three lenses you will see that the red is clear and bright where as the blue and green will be hard to see through which makes the colors dim. Replace the coolant should solve the issue. You can get the Phillips CRT coolant kit from www.tvrepairworld.com which contains the coolant for all three CRTs and the CD with instructions.

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1 Answer

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Change the coolant in the CRTs. The blue and green get contaminated and cause the red to become dominate. You can verify this by looking into the lenses of the CRts with a flashlight and you will notice what looks like bacteria in the lenses indicating that the Coolant needs replacement. You can then get the CRT coolant kit at www.tvrepairworld.com which has the coolant and the CD with instructions for Phillips Tvs.

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1 Answer

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1 Answer

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http://servicemanuals.vstore.ca/product_info.php/pName/phillips-crt-coolant-replacement-kit/cName/repair-kits

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http://servicemanuals.vstore.ca/product_info.php/pName/phillips-crt-coolant-replacement-kit/cName/repair-kits

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1 Answer

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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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fluid comnated in blue crt and maybe in green

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