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Ur tv have a problems known as a convergence problems,it dead.The tv covergence board must have it 2 STK Convergence ICS and some or all resistors be rreplaced to solved the convergence problems.The shop will cost u $300-350 for parts and labors.
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The convergence amplifiers are large, 2 inch x 3 inch IC's that
are mounted on the largest heatsink(s) in your tv.Some Samsungs mount the convergence amp board up high,above the
main chassis (easy pull) or down low on main chassis.The part
number is Stk392-040.Change both for reliability.I use panasonic
brand = never had a call-back failure yet.Reset alignment after
changing IC's. ..........T.