. Read, retain, and follow all instructions. Heed all warnings. . Only connect the power supply cord to an earth grounded AC receptacle in accordance with the voltage and frequency ratings listed under INPUT POWER on the rear panel of this product. . WARNING: To prevent damage, fire or shock hazard, do not expose this unit to rain or moisture. . Unplug the power supply cord before cleaning the unit exterior (use a damp cloth only). Wait until the unit is completely dry before reconnecting it to