User manual ALPINE PMX-F640

[. . . ] When drilling holes in the chassis for installation, take precautions so as not to contact, damage or obstruct pipes, fuel lines, tanks or electrical wiring. 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. Return it to your authorized Alpine dealer or the nearest Alpine Service Center for repairing. [. . . ] Before making connections, be sure to turn the power off to all audio components. 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 10cm (3-15/16") 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 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 carries various noise suppressors, contact them for further information. ⷠYour Alpine dealer knows best about noise prevention measures so consult your dealer for further information. Be sure to observe correct speaker output connections and phasing in relation to the other speakers in the system. Do not use the speaker (­) terminals as a common lead between the left and right channels. Use a Y-adaptor (sold separately) for the input when bridging the outputs. 2 Power Supply Terminal 3 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. Ground all your audio components to the same point on the chassis to prevent ground loops. 4 Remote Turn-On Lead (Sold Separately) Connect this lead to the remote turn-on or power antenna (positive trigger, (+) 12V only) lead of your head unit. 5 Battery Lead (Sold Separately) Be sure to add a 50 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, only use 8mm 2 (the wire gauge) for this connection. 7 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. 8 Speaker Level Input Connector These leads are input leads for use with head units not equipped with preamp outputs. When not using the RCA Line Input connectors, you should connect these wires to the speaker output leads of your head unit. [. . . ] Using a loud cassette or preferably a CD as a source, turn up the head unit volume until it distorts. You can then increase amplifier gain until the sound from the speakers becomes distorted. , Bass EQ Selector Switch (3/4 ch) Boost the low frequency output of the amplifier from 0dB (flat) to +12dB. Important Tips on Bridging an Amplifier NOTE: The following problems may occur if the amp is not properly connected. [. . . ]