Pioneer GM-D7500M Owner's Manual - Page 4
Before connecting, installing the amplifier, Before you start, WARNING, CAUTION - rating
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Section 01 Before you start Before connecting/ installing the amplifier WARNING ! Handling the cord on this product or cords as- sociated with accessories sold with the product will expose you to chemicals listed on proposition 65 known to the State of California and other governmental entities to cause cancer and birth defect or other reproductive harm. Wash hands after handling. ! The use of a special red battery and ground wire RD-223, available separately, is recommended. Connect the battery wire directly to the car battery positive terminal + and the ground wire to the car body. ! This unit is for vehicles with a 12 V battery and negative grounding. Before installing in recreational vehicles, trucks or buses, check the battery voltage. ! The black cable is ground. When installing this unit, make sure to connect the ground wire first. Ensure that the ground wire is properly connected to metal parts of the car's body. The ground wire of the one of this unit must be connected to the car separately with different screws. If the screw for the ground wire loosens or falls out, it could result in fire, generation of smoke or malfunction. ! Use a fuse of the rating prescribed. ! Check the connections of the power supply and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. Determine and resolve the cause, then replace the fuse with identical equivalent. ! Always install the amplifier on a flat surface. Do not install the amplifier on a surface that is not flat or on a surface with a protrusion. Doing so could result in malfunction. ! When installing the amplifier, do not allow parts such as extra screws to get caught between the amplifier and the automobile. Doing so could cause malfunction. ! Do not allow this unit to come into contact with liquids. Electrical shock could result. Also, damage to this unit, smoke, and overheating could result from contact with liquids. The surfaces of the amplifier and any attached speakers may also heat up and cause minor burns. ! In the event of any abnormality, the power supply to the amplifier is cut off to prevent equipment malfunction. If this occurs, switch the system power OFF and check the power supply and speaker connections. If you are unable to determine the cause, please contact your dealer. ! Disconnect the negative terminal of the battery before installation. CAUTION ! Always keep the volume low enough to hear outside sounds. ! Extended use of the car stereo while the en- gine is at rest or idling may exhaust the battery. ! Connect either of two subwoofers to the amplifier; 1: a subwoofer with a 250 W or larger nominal input and an impedance 4 W, or 2: a subwoofer with a 420 W or larger nominal input and an impedance 2 W. If the nominal input and impedance are out of the above ranges, the subwoofer may catch fire, emit smoke or become damaged. Important (Serial number) The serial number is located on the bottom of this unit. For your own security and convenience, be sure to record this number on the enclosed warranty card. 4 En