User manual KENWOOD KAC-8104D

[. . . ] Do not turn the power on if the ground wire is not connected. · Be sure to install a protective fuse in the power cord near the battery. The protective fuse should be the same capacity as the unit's fuse capacity or somewhat larger. [. . . ] · Install this unit in a location which allows heat to easily dissipate. Once installed, do not place any object on top of the unit. · 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. · Do not mount the unit in a place where the ducts of the unit are blocked. Blocking these openings will inhibit the cooling of the internal temperature and result in malfunction. · 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. · The installation to the vehicle should securely fasten the unit to a place in which it will not obstruct driving. If the unit comes off due to a shock and hits a person or safety part, it may cause injury or an accident. · After installing the unit, check to make sure that electrical equipment such as the brake lamps, turn signal lamps and windshield wipers operate normally. Protection function Installation board, etc. (thickness : 15 mm or more) The protection function is activated in the following situations: This unit is equipped with a protection function for protecting this unit and your speakers from various accidents or problems that can occur. When the protection function is triggered, the Power indicator goes OFF and the amplifier stops operating. · When a speaker wire may be short-circuited. · When a speaker output contacts ground. · When the unit malfunctions and a DC signal is sent to the speaker output. · When the internal temperature is high and unit won't operate. · When a ground wire of the center unit (cassette receiver, CD receiver, etc. ) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative - terminal. English 3 Connection 2WARNING * Commercially available parts RCA cable or Speaker level input connection · RCA cable connections Power control wire CENTER UNIT (CD receiver, etc. ) RCA cable* To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery's positive terminal. Left input 2CAUTION · If sound is not output normally, immediately turn power off and check connections. [. . . ] Connect the speaker wire again so that it is not pinched by anything. Set switches properly by referring to <Controls>. 1 Power indicator When the power is turned on, the Power indicator lights. If the Power indicator does not light when the power is turned on, the protection function may be activated. [. . . ]