Kenwood KAC-7201 Instruction Manual

Also see for KAC-7201: Instruction manual Instruction manual Service manual

Contents

English 7■ Installation procedureSince there are large variety of settings andconnections possible according to applications,read the instruction manual well to select theproper setting and connection.1. Remove the ignition key and disconnect thenegative - terminal of the battery toprevent short circuits.2. Set the unit according to the intended usage.3. Connect the input and output wires of theunits.4. Connect the speaker wires.5. Connect the power wire, power control wireand grounding wire following this order.6. Install the unit in the car.7. Connect the negative - terminal of thebattery.To prevent fire caused by a short in the wiring,connect a fusible link or breaker nearby thebattery’s positive terminal.• If sound is not output normally, immediatelyturn power off and check connections.• Be sure to turn the power off beforechanging the setting of any switch.• If the fuse blows, check wires for shorts,then replace the fuse with one of the samerating.• Check that no unconnected wires orconnectors are touching the car body. Donot remove caps from unconnected wires orconnectors to prevent short circuits.• Connect the speaker wires to appropriatespeaker connectors separately. Sharing thenegative wire of the speaker or groundingspeaker wires to the metal body of the carcan cause this unit to fail.• After installation, check that the brakelamps, winkers, and wipers work properly.■ Wiring• Take the battery wire for this unit directlyfrom the battery. If it's connected to thevehicle’s wiring harness, it can cause blownfuses etc.• If a buzzing noise is heard from the speakerswhen the engine is running, connect a linenoise filter (optional) to each of the batterywire.• Do not allow the wire to directly contact theedge of the iron plate by using Grommets.• Connect the ground wire to a metal part ofthe car chassis that acts as an electricalground passing electricity to the battery‘snegative - terminal. Do not turn the poweron if the ground wire is not connected.• Be sure to install a protective fuse in thepower cord near the battery. The protectivefuse should be the same capacity as theunit’s fuse capacity or somewhat larger.• For the power cord and ground, use a vehicletype (fireproof) power wring cord with acurrent capacity greater than the unit’s fusecapacity. (Use a power wiring cord with adiameter of 5 mm 2 (AWG 10) or greater.)• When more than one power amplifier aregoing to be used, use a power supply wiringwire and protective fuse of greater current-handling capacity than the total maximumcurrent drawn by each amplifier.■ Speaker Selection• The rated input power of the speakers thatare going to be connected should be greaterthan the maximum output power (in Watts) ofthe amplifier. Use of speakers having inputpower ratings that are less than the outputpower of the amplifier will cause smoke to beemitted as well as damage.• The impedance of the speakers that aregoing to be connected should be 2Ω orgreater (for stereo connections), or 4Ω orgreater (for bridged connections). When morethan one set of speakers are going to beused, calculate the combined impedance ofthe speakers and then connect suitablespeakers to the amplifier.2CAUTION2WARNING2 Ω8 Ω4Ω4Ω 4Ω4ΩCombined impedance