The leading cause of this type of failure is convergence.. Replace both convergence Ic's Stk392-110 and check all 2.2 ohm resistors in that circuit... This repair on this particular unit is fairly easy because the convergence amps are mounted in such a way to easily remove the left board for field servicing...
Have a great day!
Bill
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I AM HAVING THE SAME EXACT PROBLEM AND MINE TOO IS ABOUT 5 YEARS OLD...IS IT WORTH FIXING AND HOW MUCH WOULD IT COST? ANY IDEA?
panasonic hdtv projection monitor pt-53wx42f
Our TV is 5 years old. The tv's redlight is blinking 3 times and will not turn on.
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