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Green/Blue distorted Colors

Our 4 year old Sanyo started having issues where the picture would compress from top to bottom and end up with a line across the middle. Now, the colors are a green/blue for the entire picture with the picture actually being distorted. Is this worth fixing?

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  • mark_mastran Nov 26, 2008

    There is no Red in the picture. No, I don't think the blue and green overlap. For instance, the people's faces are green and the background is blue.

  • mark_mastran Nov 26, 2008

    Looking at it now, Red comes and goes, based on what they are showing. Most of the time just green and blue, then Red shows up occasionally.



  • mark_mastran Nov 26, 2008

    Sure, it is Sanyo HT-30744

  • mark_mastran Nov 26, 2008

    Thanks for helping, that will help me make up my mind in either spending money to get it fixed or just going out and buying a new LCD!

  • tvguy171
    tvguy171 May 11, 2010

    It sounds like a degaussing problem. Are there any shades of red in the picture? Do the blue and green overlap each other?

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Color issues are harder to solve without seeing the problem. It sound like the red amplifier on the crt board is bad. Is there any red in the picture at all? If not, that will be you problem

Posted on Nov 26, 2008

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  • tvguy171
    tvguy171 Nov 26, 2008

    It is obvious that ther are some colr/tint issues. These are ussually related to either to much or not enough color drive. In your case I believe the red is the problem. Do you have a model number? I can search my database to see if threr is a history of this problem. I don't think it is a common problem. The worst case scenario is that the crt is bad.

  • tvguy171
    tvguy171 Nov 26, 2008

    I researched my database. I don't see anything obvious. With that particular model, the biggest problem is the vertical IC (which you have already seen that problem). With the color problems, it is hard to isolate without being there with the back off the set. You could have video IC problems, CRT, or the video drivers on the crt board. I wish I could narrow it down for but that is kind of where we are at.

  • tvguy171
    tvguy171 Nov 26, 2008

    With the day after thanksgiving sales going on, there are some graet deals outhere if you are willing to get up early. Let me suggest that when buying an LCD, get a name brand (Samsung, LG Sony, etc) and purchase the extended service policy as long as it is not to expensive. The problem is that repair part for LCD tv's are expensive. With LCD's, very seldom do I go in and replace an individual component. It is usuallt board level repair. And some of these boards are not cheap. An extended service policy could pay for itself with one repair. I do this for a living, and even with my discounts, I would by one to cover the cost of parts.

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1 Answer

Wavy horizonal disturbance in picture


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

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV2_bing.gif may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 07, 2010 | Televison & Video

1 Answer

Picture was fine, then lines diagonally, now light


Projection sets have two very common problems outlined below.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. The TV can also shut down when the convergence starts to fail.

Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith, RCA and others.


You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngSOLUTION

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

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 10, 2009 | Mitsubishi WS-55909 55" Rear Projection...

1 Answer

Convergence and picture problem.


convergence ic's
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/

Jan 07, 2008 | Sony KP-57WV600 57" Rear Projection...

2 Answers

I am told my Hitachi 61SDX01B (UltraVision/Ultrascan) has "Green Geometry"


Sounds like a convergence promblem.

Here are some of the most common symptoms of a convergence problem.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Oct 15, 2007 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

Hitachi 61SDX01B


The problem is called green geometry.There is nothing wrong w/the green pix tube.It is critical to get the green geometry

accurate because the red and blue convergence overlays on

the green.If you have more than an alignment issue,that will need

repair before adjustments are attempted.

Oct 15, 2007 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

3 curved lines top & bottom/blurred picture


This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

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