Question about Proscan PS56670 56" Rear Projection Television

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Ps56670 convergence stk's.. part #?

Anyone have a part number for the ps56670 stk's?

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SOURCE: Convergence Problem w/Proscan PS56670

IN THAT CASE YOU NEED TO REPLACE THE CONVERGENCE STK'S AND SOME TV'S NEED A INTERNAL ADJUSMENT AFTER REPLACE THE CONVERGENCE.

Posted on Jan 18, 2008

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Please, can anyone tell me which STK39x-xxx convergence ic's are used in a Panasonic, rear projection TV, model PT-47WXC43


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What is the correct part number?


The question is old, but this might still help someone.

I had to replace mine on the 55" model, and I went with the STK 392-150's. The cause of failure is normally overheating, and with mine they did a lousy job of applying thermal paste to the backs of the ICs. (as you can see in the pic, so I'm sure that is why they failed). Depending on where you buy them, you can probably find the 150s or 180s online for the same or lower price anyway, so go with the higher power rating since that means they will likely withstand more heat for longer. But make sure you buy a good thermal paste and apply it evenly and correctly. Mine is working great now going on 3 months, I used Tuniq TX-4 paste. BTW, I'm a lousy solderer but I removed the old and soldered-on the new chips by hand. It looked pretty rough but ended up working perfectly. Anyone can do it!
correct-part-number-rzft2a41ymvcc0z5ypedp1yk-1-1.jpg

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1 Answer

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I would keep it running using with the back cover off using that fan to keep it cool.
Hope this helps.

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IF YOU CALL DIRECT TO THE COMPANY AND THEY DON'T HAVE IT. THE ONLY THING YOU CAN DO, CALL TO A TV REPAIR SHOP ASK IF THEY HAVE A USED SCREEN IN GOOD CONDITIONS, YOU NEED MESURE THE SIZE OF THE SCREEN UP/DOWN AND SIDE BY SIDE.

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IN THAT CASE YOU NEED TO REPLACE THE CONVERGENCE STK'S AND SOME TV'S NEED A INTERNAL ADJUSMENT AFTER REPLACE THE CONVERGENCE.

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