Question about Mitsubishi WS-65809 65" Rear Projection Television
The red line siloetts people on the tv only when I use my wii when watching tv color is weeak i ve already tried auto convergence and tried adjusting the red and blue manually it wont let me move the crosses at all any suggestion
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Posted on Jan 02, 2017
This is a V-21 Chassis common, with these symptoms, for failure of the convergence amps. This set uses two STK 392-110 Sanyo amps mounted on a heat sink and hard to miss. They're a 40 pin ic about the size of a half pack of cigarettes.
It has also been my experience that two or more of the yoke return resistors need to be replaced, most commonly R8c21 and R8c22, both are 3.9 ohm 1w but test all of them for reliability.
Hope this helps!
William Rayburn, CET
PO Box 442
Long Beach, WA. 98631
Posted on May 14, 2009
SOURCE: Convergence Problem
Unfortunately you will have to replace the convergence board in this unit. it has failed. this particular board regulates the alignment procedure that you are having issues with. replacing this board will fix this issue.
Posted on May 21, 2009
What you might be experiencing based on your symptom sounds like a damaged convergence IC.
If you cannot move the colors with the convergence menu then you have a damaged convergence IC.
With any Projection Television that has a damaged convergence IC, you do not want to continue the use of the set. If the IC’s continue to fail they will cause a short in the power supply and cause your television to not power up, and possibly damage the CRT’s in the set.
With that aside I have some support suggestions that I have put together that may help you make an informed decision.
You should be able to get a local service center to repair this at your house for between $350.00 - $450.00.
If you want to repair this set yourself, I have some instructions below that will be a help to you.
While it is not a very hard repair, this repair can be a bit tricky. If you have a 45W soldering iron, solder, solder wick, and heat sink compound you can repair it yourself.
When you remove the old IC's, please be sure to remove all of the old heat sink compound, as it can act as an insulation for the new IC's and cause them to overheat. I usually clean the heat sinks with alcohol and a small rag.
There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. If you only have one, it is right in the middle of the set on the center circuit board. 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.
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.
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 I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up)
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I have attached some photos of really bad convergence problems, your picture may not be exactly as bad as these, but here is something to compare your set with.
Posted on Oct 26, 2009
Reset will not cure a convergence problem.
this model (ws-65711) uses a single convergence chip located on the middle circuit board (see photo).
If convergence is skewed and will not adjust in customer menu the chip needs to be replaced.
Good news: I have start to finish, step by step instructions for this repair in this set. They tell you everything you will need and exactly how to do the repair.
No two sets with convergence problems will look exactly the same but I will also attach a few photos of this kind of trouble.
If the photos or what I have told you told you something you did not know and you want the instructions (free) rate this solution as very helpful as I do this here for free.
CONVERGENCE CHIP USED IN THIS MODEL.
TYPICAL BOW FROM CONVERGENCE PROBLEM
ANOTHER SET WITH CONVERGENCE PROBLEMS
Posted on Sep 14, 2010
Testimonial: "This seems to be the problem I'm having Tks for the information great help look forward to getting your instructions to replace the chip. "
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