User manual KENWOOD KAC-9405

[. . . ] • When the unit malfunctions and a DC signal is sent to the speaker output. NOTE • If you experience problems during installation, consult your Kenwood dealer. • If the unit does not seem to be working right, consult your Kenwood dealer. • Take the battery wire for this unit directly from the battery. If it’s connected to the vehicle’s wiring harness, it can cause blown fuses etc. • If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter (optional) to each of the battery wire. [. . . ] • 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. • For the power cord and ground, use a vehicle type (fireproof ) power wring cord with a current capacity greater than the unit’s fuse capacity. (Use a power wiring cord with the range of 14 mm2 (AWG 6) to 21 mm2 (AWG 4). • When more than one power amplifier are going to be used, use a power supply wiring wire and protective fuse of greater current-handling capacity than the total maximum current drawn by each amplifier. Wiring Speaker Selection • The rated input power of the speakers that are going to be connected should be greater than the maximum output power (in Watts) of the amplifier. Use of speakers having input power ratings that are less than the output power of the amplifier will cause smoke to be emitted as well as damage. When more than one set of speakers are going to be used, calculate the combined impedance of the speakers and then connect suitable speakers to the amplifier. 4Ω 4Ω 4Ω 4Ω 8Ω 4Ω 4Ω 4Ω 4Ω 4Ω 8Ω 2Ω 4Ω Combined impedance 4Ω 4Ω 2Ω 4Ω 4Ω 4Ω 4Ω 4Ω 4Ω 4Ω 4Ω  English KAC-9405_M_1English. indd 2 08. 10. 21 3:48:32 PM Installation Accessories 380 mm 320 mm Part name Self-tapping screws (ø5 × 18 mm) Hexagon Wrench (Large) Hexagon Wrench (Small) Terminal cover (Power terminal) External View Number of Items 4 1 1 1 ø6 Hexagon socket head cap screw (M4 × 8 mm) Dressing cover Hexagon Wrench (Small) Cooling fan Self-tapping screw (ø5 × 18 mm) • Do not install in the below locations; (Unstable location, In a location that interferes with driving, In a location that gets wet, In a dusty location, In a place that gets hot, In a place that gets direct sunlight, In a location that gets hit by hot air) • Do not install the unit under the carpet. • 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. • This unit has cooling fan to decrease the internal temperature. One amplifier is referred to as amplifier A and the other is amplifier B. This unit is compatible with a large variety of systems by combining the switches and functions described in the following. They always output the stereo signals regardless of the position of the "OPERATION" switch. # OPERATION switch • STEREO position: 8 THERMAL MANAGEMENT indicator Lights this indicator when the internal temperature is high. The amplification methods of the signals input can be selected. 1 Fuse (40 A x 2) NOTE 9 PROTECTION indicator 0 Power indicator • MONO (Lch) position: The amplifier can be used as a stereo amplifier. Set to this position and make bridged connections to use as a high-power monaural amplifier. (The input right signal is not output. ) Lights this indicator when the protection function is activated. Set this control according to the pre-output level of the center unit connected with this unit. This switch selects the input method of the signals to be amplified by amplifiers A and B. ! BASS BOOST LEVEL control (B. ch) @ INPUT SELECTOR switch • A B position: • A position: 6 LINE IN terminal (A. ch/B. ch) 7 LINE OUT terminal Amplifies both of the signals input to amplifiers A and B. Amplifies only signal input amplifier A with both amplifiers A and B. These jacks output respectively the signals input to amplifiers A and B.  English KAC-9405_M_1English. indd 6 08. 10. 21 3:48:38 PM Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. PROBLEM No sound. • The input sensitivity adjusting control is not set to the correct position. • The speakers wire are connected with wrong ª / · polarity. • The switches may be set improperly. POSSIBLE CAUSE The output level is too small (or too large). [. . . ] (The sound is distorted. ) • Connect the input (or output) cables. • Check connections by referring to <Protection function>. • After check the speaker cord and fixing the cause of the short, replace the fuse. • Connect them properly checking the ª / · of the terminals and wires well. [. . . ]