Check to see if the buttons on the system can perform any functions. If the buttons on the system work, the remote may be faulty
Make sure the power cables are securely connected. If either end of the power cables are not firmly connected, the power connection may be inconsistent
Make sure the power cables are plugged into a working power outlet. If the outlet is controlled by a wall switch, make sure the switch is in the On position. Test the outlet with another device, such as a lamp. If necessary, plug the system into a different outlet
Note: Some extension cables cut power to outlets when certain other outlets are not turned on. Check with the manufacturer for details.