Question about Mitsubishi WS-65869 65" Rear Projection Television

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Is this a calibration, convergence, or lens focusing issue?

I have a Mitsubishi WS65819 purchased in 2001 that started having the convergence bowtie problem about two months ago. With the help of this message board and MCM Electronics, I fixed it with no issues this last weekend. Thanks a million. One question, before I performed the IC replacement, I noticed that the red horizontal line on the basic X convergence screen was elongated. I assumed this was due to the bad ICs. Unfortunately, after the set warms up a minute or two, the red convergence shifts. On the basic red convergence screen you see the hotizontal line become longer and shift to the right. Is this a calibration, convergence, or lens focusing issue? I have already had a repair guy visit and charge me $100. He suggested that the ICs I used in the repair were defective. I replaced the ICs again, but unfortunately it did not solve the problem.

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  • Brian Stacha Jul 23, 2007

    I did not change the ground resistors. Do I need the service manual to identify them or are they easily idetified?

  • billy_steel Dec 16, 2007

    Convergence, my screen was also bowtied. The repairman replaced the IC's and when it wasn't any better, he told me it would be another 700-800 to repair at the shop and would take them 2 months.

    I paid him the 95.00 for the visit and after reading this post feel that he just didn't know how to fix the problem onsite.



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Im thinking about buying a ws65819 mitsu. tv that has the convergence problem, sometime when its on it works fine and othertimes its like the picture is sucked in in the middle. How do i fix this problem, is it the IC, is it hard or expensive to fix?

Posted on Jan 02, 2008


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Did you Change out the Ground Resistors,220 Ohm,3.3Ohm Even if they look Good Change Them

Posted on Jul 21, 2007


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Convergance Mitsubishi ws65819

That series of model uses the STK 393-110, whose legs don't just go intermittent - cold solder joints - on the board ends, they also go intermittent - and cold solder - on the chip ends! All other Mit HDreadys have their ICs go cold solder on the board ends when the convergence starts to go intermittent, and you can usually save the part if you get to it in time, and don't run it too long in its bad condition. He did try that for you rather than charge you for a replacement part, so he's to be commended for that, at least.

Not so for the 393-110. That IC gives way at the ends up above, IN the IC, and it's really tough to get in there and resolder all of them. Really not worth the effort when it's already aged as much as it has once this starts to happen. Like a throwout bearing on a car's tranny, it's best to have the IC replaced with a brand new one and thus upgraded and start over, once you've done all the labor it takes to get that far. Convergence ICs work very hard in there, and like a car's thermostat, if either one goes out you just replace it and keep going.

So tell him he'll need to bring that IC with him this time, and you're willing to pay for the additional parts cost. It's definitely worth it on that set, that's a dynamite set!

Mr Bob

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Hi, Any authorized Mitsubishi dealer can order your board for you, If you live in a metro area go to Sears Service dept.(not the stores) and order one there, Mitsubishi is "proprietary parts" so you have to go to an authorized dealer, hope this helps you out, BMW Rider

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Mitsubishi ws-65819

The correct part# for the two convergence ic's is = STK392-570. The repair is close to $400

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