Question about Mitsubishi WT-46809 46" Rear Projection Television

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Convergence problems We can not get our TV convergence to work.....that may not be the main source of the problem tho. We recently moved and we think that something may have triggered this to not work properly. We tried resetting to factory defaults which does not work. We went into the advance features to adjust the red and blue convergence and sometimes it will fix and other times it won't even allow us to adjust at all. That's why I think it may be another problem. We don't have a TV repair person close to us we would have to take the TV to someone, not only is this a heavy TV but we would be moving it again. Does anyone have any suggestions for me?

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The convergence ICs probably have a cracked solder joint on the foil side of the circuit board. Re-flowing the the solder would help. I will always replace the convergence ICs when doing this job. The labor remains the same and you will have to pay a few extra bucks for the parts. To fix this yourself, you will need to be able to identify the two convergence ICs (STK392-570), have a basic knowledge of electronics and be able to use a soldering iron.

Posted on Feb 19, 2007

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Posted on Jan 02, 2017

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Picture has gotten darker over recent months regarless of signal source and continues to get darker. Brightness is set to maximum.


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip 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.
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.


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 aroundimages.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Aug 02, 2011 | Hitachi 53SDX01B 53" Rear Projection...

1 Answer

I have a Phillips 60" rear projection TV. recently


Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture are R,G,B colors lines mis alignments,have colors shadows picture or 3D picture lood alike?The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.

Jun 01, 2011 | Philips Televison & Video

1 Answer

Picture is blurry


Check all of your video connections and make sure everything is connected properly. Make sure your video sources i.e. cable box, etc. are configured to the proper output resolution. Since your T.V. is a rear projection CRT, I would recommend you do a convergence calibration. This is usually the problem with those kinds of televisions when the picture gets blurry- especially if it has recently been moved. The convergence procedure re-aligns the electron guns inside the T.V. Consult your manual or download one if you are unsure how to perform the convergence calibration.

Mar 24, 2011 | Hitachi 65F59A Television

1 Answer

Flash Focus does not correct convergence problem and i cannot manually adjust the red convergence to proper alignment. Red does not move laterally only vertically. Picture is offset to the right with red...


No,any colors lines mis alignments.The tv convergence board parts are dead.The 2 STK convergence ICS and some or all it resistors are dead.These parts must be replace on the tv convergence board.To solveved convergence problems.The shop,will cost u $300-350 for parts and labors.

Aug 10, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Iqc60h95w zenith=hitachi i can set up convergence but when i press swits on the main board to retorne the picture the convergence wont stay on memory.witch butons on the remote i have to press before press...


Projection TV2_bing.gif 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.

Convergence problems are very common on all Projection TV sets including Sony, Samsung2_bing.gif, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith2_bing.gif, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • Screen looks 3D2_bing.gif
  • 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 - TV may also make a chirping noise.
Here are some photos of convergence problems.

49abec3.jpg
f0add3d.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.

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 flash2_bing.gif 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 solution

93a1209.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 know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

Jan 01, 2010 | Zenith IQC60H95W 60" Rear Projection...

1 Answer

Bowed picture & red/blue/yellow separation


Your TV most likely has one of two possible problems.

Problem #1 - Failure in the convergence circuits. ( 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
645fba6.jpg
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.

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. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

9e7eb5b.jpg

TV set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

182c282.jpg



2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

May 19, 2009 | Televison & Video

1 Answer

My JVC model number AV-56WP30 has a flashing convergence screen



Your TV most likely has a Convergence Chip Failure but I have not seen that symptom before.

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.

Feb 28, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Need to adjust convergence


this is a very nice tv very strong, but you have a problem on the convergence circuit or more likely on the power circuit for the convergence and this is the reason why the main processor it doesn't recognize this circuit. it need service not a mayor problem.

Nov 25, 2008 | RCA P52926 52" Rear Projection Television

2 Answers

Tv bows


I have the same TV and just finished having my TV repaired for the same problem. I was unable to converge the colors even in the advanced convergence setup menu. The lines were bowing so far that adjustment was not possible. I had to replace the vertical and horizontal convergence controllers located on the main electronics panel. They require a lot of soldering and should be done by a professional. Unfortunately this is a common "maintenance" repair that happens every 5-7 years, depending on the usage, costing around $500.00 for in home repair. DO NOT USE YOUR TV IF THE CONVERGENCE IS BAD AS IT MY CAUSE THE POWER SUPPLY TO BLOW resulting in addition repair costs.

Sep 10, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

I change that part but


how do i move the number in the main meau

Apr 05, 2008 | JVC AV-65WP74 Rear Projection Television

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