Question about Hitachi 53FDX20B 53" Rear Projection Television

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Blue-green color problems

Our picture has begun losing corlor clarity and primarily distorting green and blue (greens become greys and blues take on shades of green).  this was initially a temporary problem that would fix itself but now seems permanent.  the magic focus doen't fix it.  Am I in need of a bulb replacement or is it something else.

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Re: blue-green color problems

KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:

Posted on Dec 05, 2007

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Has wavey lines and horizontal shadows and will not complete auto focus. It happens after the tv is on 10sec. Have adjusted and cleaned the picture tubes did help clarity but still has the problems

projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.



Common Problem #2) CRT Fluid is Cloudy

Projection TV 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 images.

Picture of a set that needs the fluid changed.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya

Jan 17, 2011 | Samsung HCN653W 65" Rear Projection...

2 Answers

The color on my Phillips 60 rear projection big

that means that the phone needs to be unlock by the network provider

Mar 13, 2010 | Philips 60PP9202 60" Rear Projection...

1 Answer

Only red tube shows picture, but green & blue are on, just no pic

More likely the problem is the blue and green fluid in the tubes is so cloudy that its distorting the image. Get a fluid kit from

Jul 29, 2009 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Picture loses all normal color & changes to snowy blues & greens

Not sure what causes it but it can be fixxed by your local repair guy, I just had mine fixxed for under a hundred bucks, he takes the back off and with a tiny screw driver adjust a few screws to near brand new perfect picture.. and it has been good ever since

Dec 01, 2008 | LG RU-52SZ30 52" Rear Projection...

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

Convergence problem

my convergence are having a problem the blue color won't moved

Oct 03, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Distorted picture on RCA LCD TV

it can be replaced with a t0220 stile case dioded 220k ohm go to nte look up and do a search on the rca part #moz-screenshot.jpg 259638 search the web for the part.

Jun 29, 2008 | RCA R52WM24 52" HDTV Projection Television

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

1 Answer

Blue hue

This might denote a problem with the CRTs (Red and Green). I would suggest having them checked with a CRT analyzer and if they are bad, having the technician perform a picture tube rejuvenation on all three CRTs. Now this will cut the tube life down to about 2 years, but if the CRTs are bad you really don't lose anything by doing this.

I hope this helps
Thank you

Dec 19, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Color distortion issues

Oct 07, 2007 | Sony Grand WEGA KDP-65WS550 65" Rear...

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