Problem starting up Virus TI KB after plugging out the power cable for more than one hour

[vallik]

Hello, I own a Virus TI keyboard for 4 years and in the last year I've encountered the following issue:
1 - this is happening every time I plug the power cord into the instrument after it is left without power for more than one- two hours;
2 - when I first plug the power cord, the display illuminates suddenly and then turns off completely and there is no way to power up the Virus TI from the power on / off; also the power led is not pulsating;
3 - after removing the power cord and plugging it in for several times - the power led starts pulsating and only then I am able to power on the Virus TI keyboard.

Anyone else had this problem before? Any advice?
Thanks