Question about Mitsubishi WT-42311 42" Rear Projection Television

1 Answer

Rear projection tv

I have a rear projection Mitsubishi and I can't get the red to converge or basically align. When I go to the advanced setup for converge the red will not move side to side just up and down. Not sure what I need to replace. The Model is a wt-a42

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers
Re: rear projection tv


Have you checked your convergence correction Amplifiers? These usually go bad. I believe they are the STK392-XXX (XXX stands for the last 3 digits) Mitsubishi uses the 500 series,They should be replaced with new ones and the bias resistors need to be changed also.

I would suggest taking it to a shop to have the replacement done, but if you want to do it yourself here is a site that can help:

There are many other sites that can help you install the ICs but this one is very accurate.

If you need any help in removing and replacing the ICs let me know and I will be able to walk you through the process(be prepared to take picture to help me see what you are looking at so I can help faster.

Thank you,

Posted on Dec 07, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have a 55 inch rear projection mitsubishi tv. it recently has started showing what looks to be white spots when viewed at a distance on a dark screen. when you look at it closely it actually is red green...

It is called Convergence. You have three CRTs. Red, blue, Green. When they are not aligned, you will see the individual colors. See if you can do some alignment in the users menu. Look for Converge or Convergence in the menu. Either under video or setup.

Mar 09, 2011 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Picture is no longer working properly. Picture is blurry and colors are all wrong. Ghost image. Happened all at once not gradually. What needs fixed mitsubishi 65" medallion series. appox 7 yrs old

Your Convergence ICs have failed. It is very common on rear projections. 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.

Feb 19, 2011 | Mitsubishi WS-55819 55" Rear Projection...

2 Answers

Picture is completely out of alignment, went to do

It means the convergence IC gave up already ang needs a replacement. And also check the 5A picofuse in the power supply.

Dec 28, 2009 | Mitsubishi WS-65869 65" Rear Projection...

1 Answer

Can not align red even though convergence board WS-55819

Did you replace the center board with the STK-392-570 chips or the Digital convergence board mounted on it?

98% of the time if you have a convergence problem it is on the center board---the small board on the left under the metal shield box stores and controls the convergence of this set.


I am here to help----I have fixed hundreds of Mitsubishi sets with convergence troubles.

Regards, SD TECH

Oct 28, 2009 | Mitsubishi WS-55819 55" Rear Projection...

2 Answers

Blue and red overlap shadowing

convergence ic's are your culprit. they are responsible for aligning the 3 colors your tv projects onto your screen..

Mar 15, 2009 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer


You can try to enter the menu and go to advanced setting and adjust the convergence. Push audio to go to advanced convergence and do the multipoint convergence to re-align the colors. If this doesn't solve, you may need to do a hardware repair.. all projections of this type will need a convergence IC repair sometime during their lifetime.

Dec 07, 2008 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Convergence problem

I have a VS-45607 and If the VS-5052 has the same menus then there are two options for convergence. One is the basic convergence where there is one set of crosshairs and you line them up. Then there should be an option for "advanced" calibration where the whole screen looks like a grid and you go to un-converged crosshairs and align the screen. Most likely not all of them will need to be adjusted, but for me, the lower right hand corner wasn't aligned right and this cleared it right up.Good luck

Dec 03, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Mitsubishi rear projection tv

replace vertical IC and shadows/ghosting the problem is either electrolytic capcitor or video IC or convergence adjustment

Aug 18, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Mitsubishi ws 46807 convergence

convergence fail. try resoldering the 2 convergence ICs in the middle baord located on the large heatsink. this might fix unless the problem has gone it course

Mar 21, 2008 | Mitsubishi WS-55809 55" Rear Projection...

2 Answers

Red convergence out of range.

Replace STK393-570 convergence IC. located on center PCB.
re-check alignment........T.

Oct 24, 2007 | Mitsubishi WT-42311 42" Rear Projection...

Not finding what you are looking for?
Mitsubishi WT-42311 42" Rear Projection Television Logo

Related Topics:

178 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Projection Televisions Experts

matt martin
matt martin

Level 3 Expert

1187 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

The Knight
The Knight

Level 3 Expert

66456 Answers

Are you a Mitsubishi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides