Hd 61Z786 screen went black and red an dblue light flash but no picture and no sound? When restarted fan powers up then shuts off and goes back to bliinking lights.
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you need to replace the power supply. The fan sound is the fan for the power supply and not the computer. for cheap parts or used goto headgap's. They know what you need and probably even help you replace it yourself.
ON BUTTON FLASHES RED AND BLUE FAN POWERS UP AND THEN SHUTS DOWN
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