User manual ALPINE MRV-F409

[. . . ] dO NOT USE BOLTS OR NUTS IN THE BRAKE OR STEERING SYSTEMS TO MAKE GROUND CONNECTIONS. Bolts or nuts used for the brake or steering systems (or any other safety-related system), or tanks should NEVER be used for installations or ground connections. Using such parts could disable control of the vehicle and cause fire etc. kEEP SMALL OBJECTS SUCH AS BOLTS OR SCREWS OUT OF THE REACH OF CHILDREN. [. . . ] Connect the yellow battery lead from the amp directly to the positive (+) terminal of the vehicle's battery. Locate the unit and route the leads at least 10 cm away from the car harness. ⷠKeep the battery power leads as far away from other leads as possible. ⷠConnect the ground lead securely to a bare metal spot (remove any paint, dirt or grease if necessary) of the car chassis. ⷠIf you add an optional noise suppressor, connect it as far away from the unit as possible. ⷠYour Alpine dealer knows best about noise prevention measures so consult your dealer for further information. Do not use the speaker (­) terminals as a common lead between the left and right channels. 2 RCA Input Jacks Connect these jacks to the line out leads on your head unit using RCA extension cables (sold separately). Be sure to observe correct channel connections; Left to Left and Right to Right. (Front to Front and Rear to Rear) NOTE: For a single channel input in MONO mode, use the "CH-1" RCA input jack. 4 Battery Lead (Sold Separately) Be sure to add a 40 amp fuse as close as possible to the battery's positive (+) terminal. This fuse will protect your vehicle's electrical system in case of a short circuit. If you need to extend this lead, the wire gauge should be AWG8 or larger. (In this case, the fuse and line choke inside the amplifier do not work. ) When making connection, remove the black cover of the battery direct terminal and use the screw attached to the battery terminal. Possible vehicle damaged may also occur due to the amplifier's high current draw with bypassing its internal fuse. ⷠAdd a fuse to the battery lead having the same current rating as that of the amplifier when using the battery direct terminal. If this does not help, discontinue use of the battery direct terminal and connect to the regular battery terminal. ⷠWhen using this terminal, consult with a mobile audio specialist for the best choice of connections for your system. 6 Remote Turn-On Lead (Blue/White) Connect this lead to the remote turn-on or power antenna (positive trigger, (+) 12V only) lead of your head unit. 7 Ground Lead (Sold Separately) Connect this lead securely to a clean, bare metal spot on the vehicle's chassis. Verify this point to be a true ground by checking for continuity between that point and the negative (­) terminal of the vehicle's battery. [. . . ] Using a loud cassette or preferably a CD as a source, slowly turn up the head unit volume until you just hear the sound distort. At that point, reduce the volume one step so the distortion is no longer audible. Keep head unit output at this level and begin increasing the amplifier gain until the maximum output level you desire is reached. To prevent damage to the speakers or amplifier, the maximum output level should not cause bottoming of the speakers or excessive distortion of the amplifier. [. . . ]