Question about Sony KP-46WT510 46" Rear Projection HDTV

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Green convergence, bad IC?

Recently my TV developed the problem where the green will no longer respond to vertical convergence. Even in the service mode, i can adjust the green horizontally but not vertically. This condition results in the green projection having a significant bow-tie or pin-cushion affect, depending on how one looks at it. Everything else appears to operate normally.

Based on the numerous solutions here that mention the replacement of the STK ICs, i have pulled by D board and planned on replacing the ICs. However, when i looked closely at the connection around the ICs, i saw this...


Now every other C#### component is white, while C8011 appears to be fragmented (sorry i can't zoom in better\clearer) and possibly damaged.

Does anyone know if the failure of this component would be associated with the condition of my TV, or should i proceed to replace the STK ICs?

The red marks across this STK IC was made suring manufacutring, and this IC appears to be the one associated with red and green (furtherst from the high voltage component and the power G board).

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C8011 could definately cause the problem you are indicating as one side of that capacitor is tied to the postive feed for Red horizontal in IC8001 ( STK392-560) and the other is tied to the Green vertical return . I would replace that along with the IC as the IC is sure to be weakend if that capacitor has shorted. Let me know if you need further assistance.

Posted on Apr 08, 2008

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