Attach the original red white yellow cable that came with your ps3 and hook up to tv. Do video reset. Turn the system on, attach ps3 controller with usb mini cord. If you get one light on the controller, you are in business, if you don't the PS3 is broken.
If that is the case, if you are lucky you can try holding the power button (from system off) till the system beeps and turns off, then hold power button again until the system beeps, then doubles, then release from power button. This should get you to a screen you can not only see, but be able to recover your system from.