Hey thanks for your responces. Sadly, now It got worse maybe is not fixable
The power led turns on and stays on, the HDD led turns on and blinks for a couple of seconds and then turns off, the cd tray is not ejecting, the fans turns on and then quickly turns off. The screen is completely black it seems that the lcd backlight bulb is not even turning on. I know that the OS is not loading because if I press the power buttom it quickly turns off without blinking or waiting for the OS to shutdown. I'm not talking about pressing the power buttom and keep pressing for few seconds at the first "depression" of the buttom the power led turns off. I will try the external monitor anyways but tomorrow since I don't have one at hand right now.