Question about Mitsubishi WS-55809 55" Rear Projection Television

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Hello what does the convergence board look like?

I heard you can just plug them in. my 55'' mistubisi is bowing in and colors getting all out of wack. who do i contact for part. could you tell me where it is in my tv thanks alot

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Your symptom sounds like a damaged convergence IC.

This is a common failure for this particular television.

There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110, and they are located on the signal board (on the left as you look into the back of the set).

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.
There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.

I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.


If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. I usually order my parts from Andrews Electronics in California, they will have the OEM components that you will need.
Their site is http://www.andrewselectronics.com/welcome.aspx
And their phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the phone order so you can talk to the person about the different types of IC’s that are available.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try http://www.tvrepairkits.com/ , I have not tried them yet, but they do carry OEM or better parts.

I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.
asnowman

Posted on Oct 02, 2009

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You can find parts in the link below by using your model number.

Electronic Replacement Part Search

Posted on Aug 30, 2010

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1 Answer

I have a Mitsu ~ HDTV 1080 #65511 all the colors are out of wack. I can not find a place to align them and no longer have the manual ..


Tv have colors lines R,G,B mis alignments,have colors shadows picture or 3D pictures look alike?Tv have problems known as a convergence pictures problems.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too,this parts on the convergence board must have be replaced.To fixed the convergence board to solved tv convergence pictures problems.The shops will cost u like $300-350 for parts and labors.

Jul 26, 2011 | Mitsubishi WS-55809 55" Rear Projection...

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There are 3 distinct color lines and the picture looks 3d. The lines are bowed and trying to adjust using the convergence grid doesn't work- the grid is bowed


Mitsubishis are notorious for bad solder connections on the convergence IC's. These are located on the big heat sinks on the main board. It's an easy fix if you know how to solder. Check for any play on the IC's when "wiggled".

Feb 06, 2011 | Mitsubishi WS-55511 55" Rear Projection...

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I have an akai 55" projection tv and the top and bottom of the picture is bowed with green and red colors which makes it look like a 3-D movie. how can i fix this problem and what will it cost to fix and...


The tv have a problems known as a convergence problems,it dead.Yes,try website like Tvrepairworld.com to buy a whole rebuild convergence board for the replacement.The Akai/Samsung use the same tv convergence board.The board around $200.

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Picture is bowed and colors are not aligned


This called Projection TV convergence. Take a look on this site for a tip on Projection TV convergence.

Apr 19, 2010 | Mitsubishi WS-55819 55" Rear Projection...

1 Answer

Convergence red is out of wack


Your TV most likely has a convergence failure. ( common problem )

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.
Here are some photos of convergence problems.

3dc9420.jpg
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0dcec37.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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 18, 2009 | Philips 55PP9352 55" Projection Television

1 Answer

Replaced Convergence Board picture still bowed


did you replace the actual convergence ic's or just a small board ? these ic's usually begin with the letters stk392-????. they are about 2 inches high and 3 inches long..black with about 18 pins sticking out the bottom. replace both of them and do the adjustments with mute 183 and you will be good.

May 26, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Replaced Convergence Board picture still bowed


Today may be your lucky day. Approach this procedure with extreme caution and take your time. Sometimes when you replace that board you have to do a full digital convergence alignment. With tv off, push mute,1,8,3,power. Tv will come on in service mode. Certain buttons can now screw up the set in a major way, do not guess. press 7 to adj. red, 8 for green, or 9 for blue. Then look for the highlighted "x" intersection. Use directional buttons to adj. while careful to watch screen. Vol+ and - or ch+ and - make moves, mute moves cursor. If alignments move up, down, left, and right continue until all intersections are aligned. Turn power off to start over. When done press add/del on remote to save settings. That should fixya.

May 30, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Color convergence out on rc 52 inch projection tv


If it is way out, it is more that an adjustment. It takes a crosshatch generator to do the convergence.
Electrode

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2 Answers

Convergance Problem??


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.

Apr 26, 2007 | Hitachi 50GX20B 50" Rear Projection...

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