User manual KENWOOD KA-S10

[. . . ] · When a speaker output contacts ground. · When the unit malfunctions and a DC signal is sent to the speaker output. · When the internal temperature is high and unit won't operate. · When a ground wire of the center unit (cassette receiver, CD receiver, etc. ) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative - terminal. Wiring · Take the battery wire for this unit directly from the battery. [. . . ] (Use a power wiring cord with a diameter of 8 mm² (AWG 8) or greater. ) · 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. 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. 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. · The impedance of the speakers that are going to be connected should be 2 or greater (for stereo connections), or 4 or greater (for bridged connections). 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. 4 4 4 4 8 2 Combined impedance 2 English Installation Accessories Part name Self-tapping screws (ø5 × 18 mm) Terminal cover (Power terminal) Speaker level input cable Hexagon Wrench External View Number of Items 4 1 1 1 KA-S10 only Part name Remote cable Remote controller Mounting bracket Self-tapping screws (ø2. 6 × 12 mm) NOTE External View Number of Items 1 1 1 2 · The rear side cover is fixed and cannot be removed. Installation procedure Since there are large variety of settings and connections possible according to applications, read the instruction manual well to select the proper setting and connection. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. Set the unit according to the intended usage. Connect the input and output wires of the units. Connect the power wire, power control wire and grounding wire following this order. Install the installation fittings in the unit. Connect the negative - terminal of the battery. 2CAUTION Front side cover Hexagon socket head cap screw (M4 × 8 mm) Hexagon Wrench Cooling fan Self-tapping screw (ø5 × 18 mm) Installation board, etc. (See page 3) 1 Fuse (40 A ×1) NOTE If you can't find the specified capacity fuse at your store etc. , consult your Kenwood dealer. 2 Battery terminal 3 Ground terminal 4 Power control terminal Controls the unit ON/OFF. NOTE malfunction or damage. · Do not connect cables and leads to both RCA cable input jacks and the speaker level input terminals simultaneously, for this may cause malfunction or damage. · Connect the power control lead to a power supply which can be turned ON/OFF by the ignition key switch (ACC line). With this connection, shock noise may be generated when the power of the genuine-accessory car stereo is switched ON/OFF. ^ OPERATION switch This switch is used to select the operation mode of the amplifier. · STEREO position: The amplifier can be used as a stereo amplifier. · MONO (Lch) position: Amplifies the signal input from the left side only. Set to this position and make bridged connections to use as a high-power monaural amplifier. (The input right signal is not output. ) 8 RCA cable ground lead terminal When using an RCA cable with a ground lead attached, connect the ground lead to this terminal. & INPUT SENSITIVITY control Set this control according to the pre-output level of the center unit connected with this unit, or to the maximum power output of the genuineaccessory car stereo. Use the diagram on the right as a guide. NOTE Controls the unit power. Be sure to connect it with all the systems. 9 LINE IN terminal 0 LINE OUT terminal The signal that's input from the line input terminal is output. 5 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. !Power indicator When the power is turned on, the Power indicator lights. [. . . ] · Do not connect the speaker output leads from a power amplifier (Optional) to the speaker level input terminals of this unit, for this may cause English 5 System examples 2-channel system High-power 2-channel subwoofer system Left subwoofer (Bridged) CENTER UNIT Right subwoofer (Bridged) Left speaker CENTER UNIT Right speaker 2-channel + Subwoofer system Left speaker (High pass) CENTER UNIT Right speaker (High pass) Subwoofer (L + R) (Bridged) Tri-mode (High pass) Subwoofer (L + R) (Bridged) Principle of Tri-mode Method of frequency band division using a coil and capacitor. . . in case of 6dB/oct. Crossover Frequency 0 dB Coil (L): Passes low frequencies and blocks high frequencies. (Low pass) Capacitor (C): Passes high frequencies and blocks low frequencies. · The speakers wire are connected with wrong + /-polarity. [. . . ]