Dead console with Corona 4gb

Hi, I have an xbox 360 slim E with a Corona 4GB but it stopped working. It doesn't react to switching on at all, but the voltage goes to it, it just doesn't react to any way of switching on. Could it be caused by Corona or is there a chip that should process the power-on command and it is defective? According to the voltage measurement on the RF module, the xbox responds by dropping the voltage on the RF module, but the jinal console does not respond at all. I will be happy for any advice.