Question about Sony KP-65WS500 65" Rear Projection Television

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Need to find a place that carries authentic Ic's (STK392-560)

I have been reading up on how to replace them and I think I have a pretty good Idea of how to do it. I have taken one of them out allready. My problem is that I can not find a good place in which to purchase these parts from. The Ic's also have a number on the top right corner, in my case the number is A3G01. Now I seem to locate different places that carry the product but all of them have a different number in the right hand corner, why? I also read to look out for imitations and that if the code in the upper right starts with B then they are imitation parts and not to purchase them as they will fault again. How true is that? The pricing is really confusing me as well as I have seen some from $5.99 all the way up to $35 and they all state that they are authentic Sanyo parts. Any help on were to locate the authentic part will be greatly appreciated. Thanks for you help in advance.

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I just replaced mine. I got them from ebay. Get the sanyo originals. The numbers in the upper corner don't matter. Just the STK part. DON'T get cheap ones. Get actual Sanyo originals. Should cost around $15 or so may $18 after shipping. Don't forget to check the Pico fuses too. They are the yellow resistor looking pieces under the IC Heat sinks. They are 3.15 on the IC's and 5a on the power board. I can send pics if you need them. Good luck.

Posted on Apr 09, 2009

  • Axle80
    Axle80 May 11, 2009

    I've never heard of the 'B' imitation. The ones I ordered didn't have B's on them and they are working flawlessly. So maybe that's something to look out for....?

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Picture looks like it is doubled, and has a blue and green tint to it. When green bulb is covered up picture realigns and looks pretty good, does it need a bulb replaced?


If you try to adjust convergence with the flash focus, perfect focus, (depending on the make of your set) or by manual convergence and the lines will not line up or even move. What you might be experiencing based on this symptom sounds like a convergence IC problem.
I have repaired hundreds of these sets, so if you have any questions after reading the following, please reply to this post and I will help you in any way that I can.
With any Projection Television that has a damaged or interment convergence problem, 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


How do I tell if the IC’s are damaged?
When looking at the area around the convergence IC’s you see some resistors that have changed colors, or you test a resistor and it no longer reads the marked value. You will have to replace the IC’s and the supporting components.

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.


Where are the IC’s located and how do I find them?
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 you need further assistance please comment to this post and I will try to help you further.

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asnowman


I have attached some photos of really bad convergence problems; your picture may not be exactly as bad as these.


ec52c45.jpg

09be3ff.jpg

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1 Answer

What is the best IC replacement for original IC part# STK393-110?


Sayo makes the best IC's, don't just settle for the cheap ones. I have see this ic for as low as $5.00 on the internet.

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 try http://www.tvrepairkits.com/ 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.
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1 Answer

IC Convergence replacement


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http://servicemanuals.vstore.ca/

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1 Answer

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