Question about Samsung HCM422W 42" Rear Projection Television

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HCM 422 Hi Jaime: Thnaks v much for giving me a solution. So you think its the entire convergence board is the problem??? The website u provided shows a price of abt $178 for the board. I hope its v simple to install this board. Do I have to unscrew the back of the TV or is it a simple pop-out plate kinda thing to reach the internal circuitry? I'm sorry....as I mentioned I am NOT a DIY person. Thks v much for your prompt and helpful inputs.

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Since you said that you are not a DIY person, I suggested to replace the entire assembly, but if you know how to de-solder and solder you can just replace the STK392-040 ICs and a few resistors to fix the convergence issue.
If you're planning to do it yourself, I would suggest to label every wire you disconnect from the TV; for example put # 1 on the wire and # 1 where you remove it from.
Let me know if you need further assistance.

Posted on Aug 28, 2008

  • Jaime Hernandez Aug 28, 2008

    Ask them what is the difference between the two board listed there.

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Mon image est en trois dimensions


Hi Franceg40,
The main reason of your problem is the convergence board gone bad, check first the bad solder joints in the board, you may replace the convergence IC and resistor around or the entire convergence board for your convenience.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

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Hi,
It would be great to assist you in Sony convergence issue.
As you said, for some time TV shows bad convergence in picture that shows its matter of lose/ dry solder joints in D board, specially on convergence out ICs pins that need to be re-solder.
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bc7880f.jpg

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1 Answer

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