Question about Hitachi 50UX57B 50" Rear Projection Television
It sounds like something has come loose in that set. I have seen that happen in those sets before. There is a transistor mounted on a heat sink by the horizontal circuits, and the solder joints on its legs crack and loosen. If you have experience pulling the chassis out of projection sets and resoldering boards, then resolder all the major components on the sweep board, especially the parts mounted on heat sinks. If you do not have experience then allow a qualified tech to handle it for you.
Posted on Aug 23, 2007
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