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Conversence blue and yellow color - Projection Televisions

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  • DEPDON Mar 29, 2009

    THE PICTURE IS VERY BLUE, LIKE NO RED. WATCHABLE BUT WOULD LIKE TO FIX

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What is the model number? are you seeing double image? do you know how to use a meter? do you know how to solder? are you trying to fix this yourself or get an idea of what its going to cost you?

Let me know and i can help

Tim Nolan

Posted on Sep 16, 2008

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Mitsubishi DLP 65" TV The green color is actually yellow.. what can I do to turn it back to the normal color it suppose to be?


not sure exactly what you referring to but if the correct color is green and all your greens are showing up yellow then I would think that somewhere in the system the blue is not being introduced into the system. All three colors turned on at the same quantity will produce White i believe. Take away the blue and you have yellow.
Need further info to continue.

Oct 04, 2014 | Projection Televisions

1 Answer

My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....


Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.

12_27_2011_5_00_56_am.png

Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Dec 26, 2011 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

Can't fix the color - really blue or really yellow.


Probably Blue CRT shot. Put tint back to center and turn color level to 0. Should look good black and white pic. If blue CRT shot, will look yellowish; usually more yellow around perimeter.

Apr 14, 2010 | Samsung HCM4215W 42" Rear Projection...

2 Answers

I have a toshiba 65hm167 no red color on the screen


Your TV is a DLP one lamp does it all, not like the old projection TVs with the Red, Green & Blue CRTs. Your TV may have a bad light engine or lose cable connections.

Good luck
N Sabre

Nov 08, 2009 | Toshiba 65HM167 65" Projection Television

2 Answers

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

Oct 05, 2008 | Projection Televisions

2 Answers

Colors off. blue and yellow not lined up


try to set the convergance if you cant you can adjust the color tubes from inside the tv but have to be very careful to do this. There is actually only 3 colors in the tv red, blue green so I would say your blue and green need lined up

Sep 30, 2008 | Projection Televisions

1 Answer

Please help i need to reset the color


replace the convergence board about 100.00 for the board and you have to know what you are doing to remove the old one and put the new one in

Jun 23, 2008 | RCA P52926 52" Rear Projection Television

1 Answer

Yellow haze


The blue filter is burnt out. A very common problem in Zenith DLPs. There are 3 color filters, 1 blue (a pinkish color), 1 green (a grayish brown) and 1 red (it is red) they give you your colors for you picture. This is a simple fix.

Mar 23, 2008 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Yellow Haze Center Screen


The blue filter is burnt out. A very common problem in Zenith DLPs. There are 3 color filters, 1 blue (a pinkish color), 1 green (a grayish brown) and 1 red (it is red) they give you your colors for you picture. This is a simple fix.

Mar 19, 2008 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Blue and yellow color


Blue should converge on top of "yellow".Bad connection(s)

on blue convergence IC.Replace both IC's for durable repair.

Check pico fuses.Reset convergence alignment.

Oct 17, 2007 | Samsung HCL552W 55" Rear Projection...

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