Connecting to the mains This monitor is set to operate at a mains supply of 100-240 volts AC (15C2320W); 220-240 volts AC (15C13205). If the mains voltage in your home is not between this, consult your dealer. Connect one end of the mains cord to the mains socket at the rear of monitor, and the other end to the mains supply. The monitor will be operating in power saving mode if you switch on your monitor without signal input from PC. (Please refer to Power Management Signalling instruction.)