Take the unit aparts,the power fuse at near the a/c power supply cord.Check for the power fuse.If the power fuse it is dead,replaced it,u have a 70%-80% the unit will work again.If the unit power fuse it is good.Than the unit it is fried,it could be anythings are dead on the unit PCB board,now u must have great electronic skills and troubleshooting skills to find out where it is and replaced it electronic parts on the unit PCB board.Require alot of skills at this points.Not worth the effort.It time to buy a new one.
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