2The serial number of this product may be found on the bot-tom of the unit.You should note the serial number of this unit in the spaceprovided and retain this book as a permanent record of yourpurchase to aid identification in the event of theft.Model No. WJ-HD500BSerial No.Caution:Before attempting to connect or operate this product,please read the label on the bottom.NOTE: This equipment has been tested and found to com-ply with the limits for a Class A digital device, pursuant toPart 15 of the FCC Rules. These limits are designed to pro-vide reasonable protection against harmful interferencewhen the equipment is operated in a commercial environ-ment. This equipment generates, uses, and can radiateradio frequency energy and, if not installed and used inaccordance with the instruction manual, may cause harmfulinterference to radio communications.Operation of this equipment in a residential area is likely tocause harmful interference in which case the user will berequired to correct the interference at his own expense.FCC Caution: To assure continued compliance, (example -use only shielded interface cables when connecting to com-puter or peripheral devices). Any changes or modificationsnot expressly approved by the party responsible for compli-ance could void the user’s authority to operate this equip-ment.For U.S.AWARNING: To prevent fire or electric shock hazard, do not expose this appliance to rain or moisture. The apparatus shall not be exposed todripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.The lightning flash with arrowhead symbol,within an equilateral triangle, is intended toalert the user to the presence of uninsulated"dangerous voltage" within the product'senclosure that may be of sufficient magni-tude to constitute a risk of electric shock topersons.The exclamation point within an equilateraltriangle is intended to alert the user to thepresence of important operating and mainte-nance (servicing) instructions in the litera-ture accompanying the appliance.Power disconnection. Unit with or without ON-OFF switches has power supplied to the unitwhenever the power cord is inserted into thepower source; however, the unit is operationalonly when the ON-OFF switch is in the ONposition. Unplug the power cord to disconnectthe main power for all unit.CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK).NO USER-SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENSA 1965SA 1966