Question about Hitachi 50DX01B 50" Rear Projection Television

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Tuning Promblem My Problem is that the blue color is way off and im not sure on how to tune it back in. i have tried several methods but nothing has worked it seems as if the blue will not move to the left but moves right and up and down. the red is adjustable but the blue doesnt move right(needs to in order to go in focus with the other two colors). If you have any help please let me know. Thank You

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Re: Tuning Promblem

You have the typical convergence problem my friend. This is going to involve getting a service manual, locating the two convergence IC's. Then you will need to unsolder then from the printed circuit board. Then you will need to put heat sink compound on the new IC's before you replace them, then most likely, have to do some touch up convergence alignment through the service menu. If you have no solid state repair experience working on printed circuit boards, play it safe and call in a pro to assist you in this repair. Good Luck

Posted on Jun 05, 2007

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This is the start relay trying to fire the display. I suspect that the caps on the board have fried themselves. It's not a DIY job as the replacement board needs to undergo tuning and realignment with special tool to create hatch pattern and to align the convergence or color engine.
Those that have tried thinking they can do what a PC fix can usually end up sepending more money and down time than if they has taken it to a professional.

Please rate my help++++Thanks for using FIXYA

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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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