User manual CLARION APX6005 INSTALLATION MANUAL

[. . . ] Careful circuit design keeps AM RFI at low levels, so you won't hear unwanted noise when the level is cranked up. Protection circuits safeguard the amplifier when overheating, speaker shorts or improper load conditions occur. The main connections and controls are on the end panels and are easy to understand. System configuration switches and signal flow chart are on the bottom panel of the amplifier. [. . . ] Do not install the amplifier on plastic or other combustible materials. Prior to drilling, make sure proposed mounting holes will not cut into the fuel tank, fuel lines, brake lines (under chassis), or electrical wiring. WIRING PRECAUTIONS Read all wiring precautions. If you are not sure of the connections, contact your authorized Clarion dealer. Before installation, make sure the source unit Power switch is in the OFF position. APPLICATIONS 2. Disconnect the negative (-) lead of the battery before making any power connections. When making connections, be sure that each connection is clean and secure. Insulate final connections with electrical tape or shrink tubing. Failure to do so may damage your equipment. A secure clean ground connection is critical to the performance of your Clarion amplifier. Use the shortest ground wire possible and securely connect to the car chassis to minimize resistance and avoid noise problems. Add an external fuse on the amplifier's positive (+) power lead and connect it as close as possible to the vehicle's (+) battery terminal. Use a rating that equals the total current consumption at full output of all amplifiers in the system. Adding an external fuse will protect the electrical system from short circuits that can cause a fire. 11 INSTALLATION APX600. 5 Power System Amplifier 6. Refer to Figure 9 when making electrical connections. Connect the amplifier's positive (+) lead via a fuse directly to the positive (+) terminal on the battery. Do not connect this wire to the car's fuse panel. Use red-insulated 8-gauge (or larger) wire for the amplifier's positive (+) power lead and the same-gauge black insulated wire for the ground. When replacing the amplifier's fuse, always use one having the same current rating. Substituting a higher-rated fuse or a slow-blow type can result in serious damage to the amplifier. Never ground the speakers to the vehicle chassis or body. If the desired frequency exceeds the range of the Freq (Hz) Selection Control, press the Crossover Frequency Multiplier Switch to increase the value by a multiplier of 10. [. . . ] Solution Incorrect wiring or short circuit. Review Installation and check all wiring connections. Problem Whining or ticking noise in the audio with engine on. Solution Amplifier is picking up alternator noise or radiated noise. [. . . ]