Question about Samsung HCM4215W 42" Rear Projection Television

Red picture distorted

The red picture is distored like a pincushion on up left conner. The green and blue look ok so far. Auto adjust do not work. Tried to adjust convergence manually (I bought a service manual). Is it the ICs on convergence amp and how do I know? They are two stk392-010. where do I get them and what is the proper process to replace them?

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3,130 Answers

The complete convergence board AA95-02002A is avaiable through PTS electronics. You can call them at 1-800-844-7871. By the time you buy the right ICs for this unit, replace, them, it will cost you almost as much as another board. Samsung does not ave this board available any more. you can buy cheap replacement ICsl for about 20 bucks, but that would be a big mistake. Good Luck

Posted on Jun 09, 2007

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I have a Sony KDP-57WS550 TV that has a convergence problem. Based on the symptoms, I'm not sure whether to indict the convergence ICs. In the convergence mode, I can move the red (and blue) crosses,...

With your TV in setup Use a small magnet to "move" the non converged Red, Blue, or, Green color lines "crosses" (each CRT will need to be adjusted in turn) by moving the magnet close to the offending Red, Blue or,Green color CRT yoke or, tube while observing the movement of the CRT color line "cross" in a mirror ( try several places near the tube and, several strengths of magnets:) a refrigerator sheet magnet works well (you can cut these with a scissors to make a better fit or, apply less magnetic "pull." by making them smaller (you may need more than one magnet per tube to fix each CRT's convergence) When you have each CRT tube's convergence right, apply some clear silicone adhesive to the magnet and, permanently affix the magnet to the now "fixed" CRT tube exactly where you placed the magnet to obtain the best convergence on the CRT.
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When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

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Yours may have one or more of the following symptoms...

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*Colors wont align
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Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

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You can see some more examples and find a fix here

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

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Search around there's better descriptions about the solution to this problem at fixya than what I just typed. But basically you replace those two IC's and then check all the resisters and you're good to go.

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http://servicemanuals.vstore.ca/

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