Question about Mitsubishi WS-55805 55" Rear Projection Television

1 Answer

Poor color quality

The colors are not lining up. When I tried to converge the colors in the advanced menu, I was able to adjust the red but not the blue. It seems to be worse on the left and right edges.

Any suggestions as to what else I could try, or as to what the problem might be

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  • Mitsubishi Master
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IF the model is WS-55805 as indicated both of the STK-392-040 CONVERGENCE chips need to be replaced and the set adjusted.

One is bad for sure and it is best to change both. Parts cost is under 30 total for this and it may be a do it yourself job if you have some skill.

I have start to finish step by step instructions that should be close enough to get the job correctly done.

Let me know----I have fixed hundreds of these sets with this kind of problem.

SD TECH

Posted on May 13, 2010

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Related Questions:

1 Answer

Fixing color convergence red and blue lines


most TVs have an adjustment for convergence in your on screen menu, go into convergence of service menu & try to adjust; it it is still too far out of convergence contact a service technician as convergence issues can be very difficult to resolve unless you are very sure of what you are doing.

Dec 26, 2014 | Televison & Video

Tip

How to set convergence on Projection TV ' s


I have given an general explanation on most projection TV ' s

  1. Enter the menu on your TV. Use the remote control and bring up the menu.
  2. Choose "Convergence." This may be under "Picture Settings," "Function" or "Advanced Options."
  3. Select a color. You will have red, green and blue to choose from. Do each one, starting with red.
  4. Press "Enter." A crosshair pattern will appear on your screen.
  5. Adjust vertically. If there is a horizontal red line visible, press the up or down arrow keys (or channel up or down) to adjust the convergence until the line is superimposed on the horizontal-center line of the white crosshair.
  6. Adjust horizontally. If there is a vertical red line visible, press left or right (or volume up or down) to adjust horizontally. Do this until the line is superimposed on the vertical line of the white crosshair.
  7. Save settings. It is important to save your settings when you are done, instead of simply exiting the menu.
  8. Repeat these steps for all colors.

on Mar 18, 2010 | Televison & Video

1 Answer

Blue and red lines across the screen in a rainbow pattern


Projection 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 menu. If you cannot adjust it in the menu - then yourconvergence 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. The power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from www.TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.
You can also read more about this on the tips page here on Fixya. Here is the link.
http://www.fixya.com/support/r11932741-convergence_repair_dull_video_repair

Dec 30, 2011 | Sony KP-57WS500 57" Rear Projection...

2 Answers

My picture is doubled on my toshiba TN50V71 as if there is a shadow behind everything? Please help!


hi, sounds like a convergence issue. try this...
  • Look through your manual. Your manual will always give you the most specific directions for your particular model. Look for an "adjusting convergence" or "set manual convergence" section.

  • Enter the menu on your TV. Use the remote control and bring up the menu.
  • Choose "Convergence." This may be under "Picture Settings," "Function" or "Advanced Options."
  • Select a color. You will have red, green and blue to choose from. Do each one, starting with red.
  • Press "Enter." A crosshair pattern will appear on your screen.
  • Adjust vertically. If there is a horizontal red line visible, press the up or down arrow keys (or channel up or down) to adjust the convergence until the line is superimposed on the horizontal-center line of the white crosshair.
  • Adjust horizontally. If there is a vertical red line visible, press left or right (or volume up or down) to adjust horizontally. Do this until the line is superimposed on the vertical line of the white crosshair.
  • Save settings. It is important to save your settings when you are done, instead of simply exiting the menu.
  • Repeat these steps for all colors.
    good luck!
  • Feb 02, 2011 | Toshiba TN50V71 50" Rear Projection...

    1 Answer

    It has tripple vision and looks like a bow tie.


    hi, sounds like a convergence issue. try this...
  • Look through your manual. Your manual will always give you the most specific directions for your particular model. Look for an "adjusting convergence" or "set manual convergence" section.

  • Enter the menu on your TV. Use the remote control and bring up the menu.
  • Choose "Convergence." This may be under "Picture Settings," "Function" or "Advanced Options."
  • Select a color. You will have red, green and blue to choose from. Do each one, starting with red.
  • Press "Enter." A crosshair pattern will appear on your screen.
  • Adjust vertically. If there is a horizontal red line visible, press the up or down arrow keys (or channel up or down) to adjust the convergence until the line is superimposed on the horizontal-center line of the white crosshair.
  • Adjust horizontally. If there is a vertical red line visible, press left or right (or volume up or down) to adjust horizontally. Do this until the line is superimposed on the vertical line of the white crosshair.
  • Save settings. It is important to save your settings when you are done, instead of simply exiting the menu.
  • Repeat these steps for all colors.

  • good luck!

    Feb 02, 2011 | RCA HD61W66 61" Projection HDTV

    2 Answers

    How do you set convergence


    What is your Make and Model number?

    Mar 18, 2010 | Televison & Video

    1 Answer

    I think I lost a gun? Picture seems to be losing a color. lines are off and can't seem to get a good picture.


    If you can find a channel or video with pure red, green, and blue you can check the quality of each individual color. If by "Lines are off" you mean the picture has a ghosting or 3-d look than that is the convergence. You can do some adjustment by entering the user menu and scrolling down to the second page and selecting the convergence option. Set the center crosshair then work your way through the positions. If you can't adjust one color in one direction it is probably your convergence IC's and related components.

    Sep 21, 2009 | Toshiba 50H81 50" Rear Projection...

    2 Answers

    Poor picture quality on Hitachi model # 53fdx01b


    Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

    Here are some of the most common symptoms and example photos of a convergence problem

    • 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.
    701cb04.jpg
    77ea520.jpg
    f0900cb.jpg
    Here is a quick test....

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

    Try to adjust the red and then the blue 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.

    2c07611.pngSolution #1

    You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

    Jan 20, 2009 | Hitachi 53FDX01B 53" Rear Projection...

    1 Answer

    Convergence


    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 projeciton 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 photos of convergence problems.

    42d3683.jpg

    7859b01.jpg

    e87380c.jpg
    Here is a quick test....

    Using your original remote go-to the settings menu then goto the convergence section.

    Try to adjust the red and then the blue convergence.

    You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

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

    Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

    69189a5.pngCONVERGENCE SOLUTION

    You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
    This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

    Oct 09, 2008 | Mitsubishi VS-50803 50" Rear Projection...

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    How to adjust picture on projection tv


    i have a 52" rca projection , and the screen looks like this ") (" on the sides can i do something to straiten it back out?

    Aug 28, 2007 | Panasonic PT-53TW53 53" Rear Projection...

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