Question about Hitachi 53UDX10B 53" Rear Projection Television

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Picture is yellow and green

My picture is yellow and green. Whites are yellow, blues are green. I don't think its the set. I think it could be the lens. It has gotten worse over the last year. Adjustments don't help. Magic focus shows blue, red and green fine. Convergance seems good. Wife has been cleaning set with windex, which I think is bad. Plus set is located next to a fire place. How can I remove lens and check it to see if it's clear? Or do you think I have a differnet issue? Thanks

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Re: Picture is yellow and green

Have a big screen 50" Ultravision Hitachi Digdal DTV, the color red shows and doubles letters eveything.... pictures double in red also.

Posted on May 31, 2007

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Re: Picture is yellow and green

Your missing the red drive on the set. Its most likly the picture tube. Its a possibility that the red drive circuit could be not working so the best thing to do is take off the gree picture tube socket and put the green board on the red tube. Of course do all this when the set is unplugged. if you have no tv experience. its not a good idea to be messing around inside of these sets.

Posted on Sep 02, 2006

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1 Answer

Tv is yellow orange color what is problem

The model indicated does not have a "bulb" as it uses 3 picture tubes.

Examine the picture with color set at zero---stand back and look= if the screen has a mostly yellow (all or part of the screen) you have bad Glycol in the blue picture tube(if need explanation ask) and a look in the lens of the Blue tube will confirm this.

If able with back off and a small mirror look in each lens--red picture, green picture and blue picture.

If the Blue looks like a floodlight with little or no image--bad glycol in that tube.

Jun 16, 2012 | Samsung HCN5527W 55" Rear Projection...

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Phillips Magnavox 9P6040 C104 tv color adjustment help

If you turn color off and stand back and examine the screen---if it is not black and white but yellow looking you have bad Glycol in the blue picture tube which is quite common.

Easy way to know for sure is with set on and rear cover removed peek with a small mirror at the three lens---don't touch anything with the set on===each tube red,blue, green should have a picture with the set on.

Likely you will find the blue one looks like a floodlight with little or NO image/picture.

May 18, 2012 | Hitachi Projection Televisions

1 Answer

Picture settings

settings are not likely to resolve a "yellow" looking screen.

Go to an unused video input or turn color all the way off----the screen should be gray or black and white looking.

What this really suggests to me is a total or partial loss of blue--the set has a red, green, and blue picture tube---a loss of blue means red and green=yellow.

You can peek inside with the set on and see if all 3 lens for the tubes are lit equally bright.

Let me know what you find (press make comment on this page) and depending on what you find I may be able to suggest something to try)

Mar 24, 2012 | Panasonic Projection Televisions

1 Answer

Blue missing from picture and low brightness; whites not white shades of yellow and pink; blues are green

its most likely the Blue CRT drive board which is causing the issue since the set would not power up if the Blue CRT itself were bad, so the drive board is the most likliest. You can get the blue CRT drive board from

Oct 22, 2011 | Sony KP-46WT520 46" Rear Projection...

1 Answer

My rear projection TV works fine except that the color is so SATURATED we can hardly enjoy the show. From what I've read, I think whatever is in the glass containers that is red, blue, and green needs...

The liquid is called Glycol and is like antifreeze and very toxic.

Not a job for a do it yourself person.

You can determine if this is your problem in a simple way: carefully remove back cover and with set turned on (do not touch anything in set) look in each of the 3 black lens. You should see a red picture and a green picture and a blue picture.

If you look in any of them and no picture and looks like a floodlight, the glycol in that tube is contaminated with bacteria.

Blue is the most common (red never since the bacteria does not like that color) and green rarely.

If blue is the problem, the picture will have a yellow cast to it (red and green equals yellow).

What has to be done is the offending picture tube has to be removed, drained of the Glycol, the area holding the Glycol taken apart and washed out----then fresh Glycol goes in and tube gets put back and set will need some real adjustments.

Remember, when I have done this it is rubber gloves and do not get any of this on you as you will absorb it into your body and it is 10 times more toxic than what is used in cars.

If you confirm only one tube has bad Glycol shop around and see what shops want for this repair.

Before you rate this solution let me know if you have any questions, I am here to help.

Regards SD TECH

Jun 29, 2011 | Philips 55PP9401 55" Rear Projection...

1 Answer

What causes the yellowish hue in the centre of the screen

There are several different types of projection sets: some use 3 picture tubes, red,green,blue--if this kind of set is what you have the coolant used in the blue tube is bad-----this type of problem leaves red and green which = yellow.

Most common in Samsung, Philips, Magnavox type sets.

If it is a newer set without picture tubes (a dlp style set) yellow in the middle of the screen would denote a damaged optical light engine.

Let me know brand, model number, date made----all are on back of set.


Feb 25, 2011 | Projection Televisions

1 Answer

On a white picture my screen has a yellow color to it and at times mill have a blue blur on the bottom left corner of the screen. also i get blue dots in the middle on the screen.

Hello: Seems like you have a picture tube problem. The yellow color is from a weak green crt. I suggest replacing the Red and Green Crt's in this model. They are nortoriuos for Failure especially the Red. The cost for these tube vary from 110.00ea to 150.00each. I don't know if you want to spend that type of money on this set, as i Know this peticular set has an expectional picture quailty, my experience with replacing sony picture tubes, is to replace all three tubes, as the new ones will show brighter. So replacing the red and green crt's and not the blue is not recommened. But thats up to you, you might not notice the color difference yourself. You also have the option of sending the Crt's for refurbished ones or having the originals rebuilt by a company in Calif, called VDC, Video display Corp. They sell and refurbish sony CRTs. This route is much cheaper, the only problem is having the crt's taken out and sent for repair. The other option is to think about purchasing a new set. As this repair price could reach into hundreds of dollars, Around $600 to $700 for parts and Labor..

Nov 18, 2009 | Sony KP-65WV700 65" Rear Projection HDTV

2 Answers

Screen blury,very pink,green edging on picture almost colorless!

This would be a convergence issue you can run the convergence setup that is in your user manual if that does not work you are going to need service.


Sep 17, 2009 | RCA HD52W56 52" Rear Projection HDTV

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

1 Answer

Phillips Model 60pp920217f

No. your problem is related to the coolant in the green CRT has congealed with bacteria and needs to be changed. Thats what causes the halos and general poor picture and color quality. The blue should be changed also. The red for some reason doesnt seem to be affected by the bacteria problem. This is a common problem that happens with all projection TVs phillips and magnavox TVs

May 12, 2008 | Projection Televisions

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