Vertical lines, shuts off, now won't turn on

Vertical lines, shuts off, now won't turn on The screen started with vertical lines, the. It shut itself off after a minute. I took off the back to see if there was any obvious damage. No. I used a hair dryer on cool to blow away any dust. Now it won't even turn on?! Did I kill it? Can someone please tell me if I can fix this or do I need a new tv? ANSWERS:
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