Samsung UN46EH6000F lightning strike

[rlovison]

A neighbor's Samsung experienced a voltage surge during a close lightning strike. When you plug the unit in, the LEDs light up though the push button joystick on/off switch does nothing. I get the 5V, 13V and 3V at the output of the power supply leading to the main board. There is no obvious physical damage to the power supply board, both fuses check out OK as well as all diodes. At the moment, I'm leaning toward main board failure. Anyone else have an opinion on this? Thanks.