At first it took my plasma 20 minutes or so before it would "warm up" and the picture and sound would come on, even though the lights on the tv would come on right away. now, neither picture nor sound comes on but lights still do.
Typical failure for all plasma tv's is a blown Y-sustain board. Another high failure for all tv's is dried out bulging capacitors in any of the power boards. You likely have one of these problems.
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