User manual KENWOOD CAW-CV1440

[. . . ] If the Power indicator does not light when the power is turned on, the protection function may be activated. Check whether there is any indication of trouble. Power indicator s The protection function activates in the following situations: · When a speaker cable may be short-circuited. · When a speaker output contacts ground. [. . . ] · Check that no unconnected cables or connectors are touching the car body. Do not remove caps from unconnected cables or connectors to prevent short circuits. · Connect the speaker cables to appropriate speaker connectors separately. Sharing the negative cable of the speaker or grounding speaker cables to the metal body of the car can cause this unit to fail. · After installation, check that the brake lamps, winkers, and wipers work properly. 3 Controls Operations of the following control and switches are required in accordance with the center unit and speakers connected with this unit. FILTER OFF LPF OPERATION STEREO MONO(Lch) 0. 5 1. 0 0. 3 SPEAKER LEVEL INPUT LEFT RIGHT LINE IN L R KAC-728 GND MIN MAX INPUT SENSITIVITY(V) 1 2 34 5 6 FILTER OFF HPF LPF OPERATION L+R STEREO MONO(Lch) 0. 5 0. 3 SPEAKER LEVEL INPUT LEFT RIGHT LINE IN L R CAW-CV1440 1. 0 GND MIN MAX INPUT SENSITIVITY(V) 1 2 34 5 6 SPEAKER LEVEL INPUT LEFT RIGHT FILTER OPERATION STEREO MONO(Lch) 0. 5 1. 0 0. 3 KAC-528 OFF LPF LINE IN L R GND MIN MAX INPUT SENSITIVITY(V) 1 2 34 5 6 POWER IN GND BRIDGED KAC-728 FUSE(20A x 2) BATT P. CON(REMOTE) LEFT RIGHT SPEAKER OUTPUT CAW-CV1440 FUSE(25A) 7 890 FUSE(15A) 20 20 POWER AMPLIFIER 7 890 POWER IN ! BATT GND P. CON(REMOTE) BRIDGED LEFT RIGHT SPEAKER OUTPUT 25 POWER AMPLIFIER ! POWER IN BATT GND P. CON(REMOTE) BRIDGED LEFT RIGHT SPEAKER OUTPUT KAC-528 7 890 15 POWER AMPLIFIER ! 4 1 RCA cable ground lead terminal 2 FILTER switch These switches allow filtering of the speaker output signals. CAW-CV1440 KAC-728/528 FILTER FILTER OFF LPF OFF HPF LPF · HPF (High Pass Filter) position (CAW-CV1440 only) Only frequencies of 150 Hz or higher are output. (Frequencies below 150 Hz are cut. ) · LPF (Low Pass Filter) position Only frequencies of 80 Hz or lower are output. (Frequencies above 80 Hz are cut. ) The Lch and Rch will be mixed before output even if the operation switch is set to STEREO. 5 LINE IN terminal 6 Speaker level input terminals 7 Fuse (20 A × 2 : KAC-728) Fuse (25 A × 1 : CAW-CV1440) Fuse (15 A × 1 : KAC-528) 8 Battery terminal 9 Ground terminal 0 Power control (REMOTE) terminal !SPEAKER OUTPUT terminals · Stereo Connections: When you wish to use the unit as a stereo amplifier, stereo connections are used. The speakers to be connected should have an impedance of 2 or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2 or greater for each channel. · OFF position The original sound without filtering is output. · Bridged Connections: When you wish to use the unit as a highoutput monaural amplifier, bridged connections are used. · Connect the ground cable to a metal part of the car chassis that acts as an electrical ground passing electricity to the battery`s negative - terminal. Do not turn the power on if the ground cable is not connected. · Be sure to attach a protective fuse into the battery cable close to the battery. Use a protective fuse having a capacity that is about 10 A higher than the maximum current drawn by the amplifier. · Use vehicle-type (fire-resistant) power supply wiring cable for the battery cable and the ground cable. The current capacity of the power supply wiring cable should be about 10 A higher than that of the protective fuse capacity (which means about 20 A higher than the maximum current drawn by the amplifier). · When more than one power amplifier are going to be used, use a power supply wiring cable and protective fuse of greater current-handling capacity than the total maximum current drawn by each amplifier. 8 Example: One Power Amplifier Is Used Model KAC-728 CAW-CV1440 KAC-528 Maximum Current Drawn 28 A 19 A 16 A Protective Fuse 50 A × 1 [25 A × 2] 30 A × 1 25 A × 1 Cross-sectional Area of Wiring Cable (AWG) 5 mm2 (AWG 10) or greater × 1 3 mm2 (AWG 12) or greater × 1 3 mm2 (AWG 12) or greater × 1 25 A 50 A 25 A 25 A 25 A Installation Self-tapping screw (ø4 × 16 mm) , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Installation board, etc. (thickness : 15 mm or more) · Since the power amplifier has no parts which require operation, it can be installed at a position away from the driver's seat without any hindrances. As generally accepted positions for its installation, places such as inside the trunk, etc. slope Crossover Frequency 0 dB -3 dB L C Frequency qExample: When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms. Prepare commercially-available coil and capacitor with the closest ratings to the results calculated from the formula above. [. . . ] Before calling service, first check the following table for possible problems. PROBLEM No sound. (No sound from one side. ) POSSIBLE CAUSE SOLUTION · Input (or output) cables are · Connect the input (or output) disconnected. · Protection circuit may be · Check connections by referring activated. · The fuse may be blown because · Replace the fuse with a new the volume was too high. [. . . ]