Question about Mitsubishi VS-70601 70" Rear Projection Television

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Tried convergance, but would work

I have a convergance problem (red and blue are both offset). I tried going into the convergance menu, but the crosshairs won't move. Am I doing something wrong or do is the problem minor or severe? I have a convergance problem, the red is offset and the crosshairs will only go so far and than stop moving? Any help

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  • Anonymous Mar 12, 2014

    I have a convergance problem (red and blue are both offset). I tried going into the convergance menu, but the crosshairs won't move.

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5 Answers

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Posted on Jul 13, 2008

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Druid may be right, usually faulty ICs give convergence problems of this kind.
Before you should perform a convergence setup procedure, you find details on service manual.
After performing setup the convergence board should be tested and eventually repaired.
All this jobs should be done by an expert repairman, even service setup procedures may damage your tv if you do not know what you are doing.

Posted on Jul 13, 2008

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  1. Some Models will only let you move in a spiral pattern out from the center.
  2. Your tv may or may not have different convergence modes that you will have to adjust, if your tv is a hi-def you will need to converge the hi-def mode as well, With the cross hatch up you can press the <picture mode> key to switch between the different modes. Make sure you save your changes before changing picture mode or your changes will be lost.
More Information
  1. Save changes often.
  2. The green crt is used to align the other two colors. If you need to get the grid straight, straighten up the green completely before adjusting the other colors. An overlay may be needed if the green is way off.
  3. After adjusting a point, you may throw another point out of convergence, Check for this.
  4. Start converging in the center and go out, don't start on the outside you will be fighting the convergence if you do.
  5. Avoid the tendency to adjust the worst point first, most likely one of the other smaller adjustments will get that badly converged point very close to where it needs to be. By adjusting that badly converged point first, you can throw off a well converged point somewhere else.
  6. If you are at the edge of the screen adjusting a point there, look at the opposite edge of the screen, you can throw a point off on the other side if you over adjust.
Hope that helps..........

Posted on Jul 13, 2008

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This is an indication that either the connections on the pins of the convergence ICs are bad or the ICs are defective. If you can solder, you can repair this yourself. Try resoldering the pins on the ICs first. If that fails to resolve the problem, replace the ICs. These are large black ICs attached to a heatsink and will be marked STKxxx.

Keep us posted.
Dan

Posted on Jul 13, 2008

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I think you need to replace the IC convergence modules..

Posted on Jul 13, 2008

  • 1 more comment 
  • Swilin Sampson
    Swilin Sampson Jul 13, 2008

    But if you have no prior experience, I would recommend getting in touch with a repair service.May cost you about $150..
    But if you have a clue, drop a post back, and i will give you a link to try a DIY..But mind you, there are voltages in a TV that are deadly and can KILL, even if you know what you are doing..


  • Swilin Sampson
    Swilin Sampson Jul 13, 2008

    i meant to say that if you have no prior experience, contact a repair service..

  • Swilin Sampson
    Swilin Sampson Jul 13, 2008

    Spot on Ginko, and thanks..

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1 Answer

The divergence is messed up and it looks like I'm watching a 3D movie without glasses and its permanent


It looks like a Panasonic? not real bad but off, you might if have the original remote try to go into the menu for Convergence and see if the several crosses that can be called up will adjust---looks like red is offset some but might be adjustments
if the red or blue will not adjust enough or at all in some direction the two chips the set uses would have to be replaced, if its panasonic I have instructions for those---tell you everything you will need and how to do it--YOU will NEED a working Panasonic remote to see if set will adjust or not and after replacing the parts to adjust.

Let me know the model/brand and if you can solder or what? Soldering is involved if the chips are bad and need to be replaced.

18 pins on each chip Your video looks like the red is offset to the right on the left side of the screen. the chips may not need to be replaced if the convergence adjustment in the customer menu will move the red to the left in that area.

Dec 23, 2012 | Televison & Video

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On my HD1080 Mitsubishi projection flat screen 55809 the picture is bowed on top and bottem and it look as if the projectors themselves are offset, but the picture is clearer as you come toward the center....


It could be one of two things: Either a bad solder joint or convergence IC failure.

Convergence IC failure is very common. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless

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The screen looks as if it is 3D. The colors are all offset.


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 photos of convergence problems.

42d3683.jpg

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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 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

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Have the convergence IC's replaced. Only one has failed but have both IC's changed as the other is not far behind..

Thx please leave comment

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go into the menu find convergence
some models have auto convergence
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Most likely bad convergence amplifiers. They are soldered in components.They can become intimentent and the lines come and go, usually red or blue.

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