User manual PANASONIC SU-V620

[. . . ] Use this position when the unit is used for subwoofer speakers or the L+R (monaural) sound is required. If you can't find the specified capacity fuse at your store etc. Do not use this terminal for power source grounding. This unit will be damaged if the power source grounding wire is connected to this terminal. [. . . ] ) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative - terminal. Only frequencies of 150 Hz or higher are output. Set this control according to the pre-output level of the center unit connected with this unit, or to the maximum power output of the genuine-accessory car stereo. Only frequencies of 80 Hz or lower are output. When you wish to use the unit as a high-output monaural amplifier, bridged connections are used. For the pre-output level or the maximum power output, refer to the "Specifications" in the instruction manual of the center unit. For safe installation, read "Installation procedure" before starting work. Genuine-accessory car stereo (No line output center unit etc. To prevent injury or fire, take the following precautions: · When extending the ignition, battery, or ground wires, make sure to use automotive-grade wires or other wires with a 3mm2 (AWG12) or more to prevent wire deterioration and damage to the wire coating. ⷠTo prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit. ⷠIf the unit starts to emit smoke or strange smells, turn off the power immediately and consult your Kenwood dealer. ⷠThe impedance of the speakers that are going to be connected should be 2 or greater (for stereo connections), or 4 or greater (for bridged connections). When more than one set of speakers are going to be used, calculate the combined impedance of the speakers and then connect suitable speakers to the amplifier. Be sure to turn the power off before changing the setting of any switch. ⷠIf the fuse blows, check wires for shorts, then replace the fuse with one of the same rating. Do not remove caps from unconnected cables or connectors to prevent short circuits. Sharing the negative wire of the speaker or grounding speaker wires to the metal body of the car can cause this unit to fail. ⷠAfter installation, check that the brake lamps, winkers, and wipers work properly. The genuine-accessory car stereo shall have a maximum power output of no more than 40 W. ⷠDo not connect the speaker output leads from a power amplifier (Optional) to the speaker level input terminals of this unit, for this may cause malfunction or damage. ⷠDo not connect cables and leads to both RCA cable input jacks and the speaker level input terminals simultaneously, for this may cause malfunction or damage. ⷠConnect the power control lead to a power supply which can be turned ON/OFF by the ignition key switch (ACC line). [. . . ] ⷠThe surface temperature of the amplifier will become hot during use. Install the amplifier in a place where people, resins, and other substances that are sensitive to heat will not come into contact with it. ⷠWhen making a hole under a seat, inside the trunk, or somewhere else in the vehicle, check that there is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or wiring harness, and be careful not to cause scratches or other damage. ⷠDo not install near the dashboard, rear tray, or air bag safety parts. [. . . ]