Question about Samsung HCL4715W 47" Rear Projection Television

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Suddenly Green focus shift off and cann't be able to autoalign

I have a Samsung HCL4715W 47" rear Projection Television. All of a sudden It gives pictures with green shadow and when i try to do autoaligh green gun not aligning in center. So can someone help me what could be wrong... Thanks,

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There is a Convergance board that needs to be replaced.there is no way of fixing that problem without replacing that board first

Posted on Feb 22, 2007


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It sounds like one of the convergence Ic chips is bad---you will need to locate and replace both of them and look for any damaged parts around them; there usually are two pico fuses in this area, one for each IC. The fuses do not look like glass fuses--they usually are green or orange in color and will have the amperage marked on them and on the top of the circuit board.

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A lot of times when the convergence ICs blow, there are also problems with resistors on the board (talking from Hitachi experience), or the board itself.

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Replace convergence amp IC's = tech skill required.
Then activate auto focus...............T.

Let me know if you want step-by-step help....................

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