Kenwood KAC-M646 User Manual - Page 2
Troubleshooting guide, System examples, Connection, Controls, Specifications - amplifier
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Connection / 连接 7 RCA cable or Speaker level input connection 7 RCA RCA cable connections / 连接RCA 缆线 Center unit (CD receiver, etc CD Power control wire RCA cable RCA 缆线 FUSE [30A] POWER IN BATT. P.CON BRIDGED LEFT s A ch FILTER OFF HPF B ch 1 2 0.5 L MAX ] 3 4 [ MIN ] 5 INPUT SENSITIVITY [ V ] 0.3 0.2 [ MAX ] R LINE IN A B SPEAKER LEVEL INPUT Speaker level input connections To chassis (GND * 1 Genuine-accessory car stereo (No line output center unit etc A.ch B.ch Black 黑色 * 2 2 Parts included 配件 B ch B ch FILTER OFF LPF A ch A ch FILTER OFF HPF B ch 100 150 80 1 2 0.5 3 0.3 1 2 0.5 L 3 0.3 50 LPF FREQUENCY [ Hz ] 4 [ MIN ] 5 0.2 [ MAX ] 4 [ MIN ] 5 INPUT SENSITIVITY [ V ] 0.2 [ MAX ] R LINE IN A B SPEAKER LEVEL INPUT NOTE 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. 注 RCA Cable color of the connector * 2 * 1 ª White Gray Green Purple / 紫色 Black / 黑色 A channel Left / A A channel Right / A B channel Left / B B channel Right / B GND / 接地 System examples 4-channel system 4 Center unit B ch B ch FILTER OFF LPF A ch A ch FILTER OFF HPF B ch 100 150 80 1 2 0.5 3 0.3 1 2 3 0.5 0.3 50 4 [ MIN ] 5 0.2 [ MAX ] 4 [ MIN ] 5 0.2 [ MAX ] LPF FREQUENCY [ Hz ] INPUT SENSITIVITY [ V ] LL R AR LL R BR High-power 2-channel system 2 Center unit LL L R A R B ch B ch FILTER OFF LPF A ch A ch FILTER OFF HPF B ch 100 150 80 1 2 0.5 3 0.3 1 2 3 0.5 0.3 50 4 [ MIN ] 5 0.2 [ MAX ] 4 [ MIN ] 5 0.2 [ MAX ] LPF FREQUENCY [ Hz ] INPUT SENSITIVITY [ V ] LL R R B R Front left speaker Front right speaker Rear left speaker Rear right speaker Left speaker (Bridged Right speaker (Bridged 2-channel + Subwoofer system 2 Center unit B ch B ch FILTER OFF LPF A ch A ch FILTER OFF HPF B ch 100 150 80 1 2 0.5 3 0.3 1 2 3 0.5 0.3 50 4 [ MIN ] 5 0.2 [ MAX ] 4 [ MIN ] 5 0.2 [ MAX ] LPF FREQUENCY [ Hz ] INPUT SENSITIVITY [ V ] LL R AR LL R BR Left speaker (high pass Right speaker (high pass Subwoofer (Bridged Controls / 控制 FUSE [30A] POWER IN BATT. P.CON BRIDGED LEFT s SPEAKER OUTPUT s RIGHT A B B ch B ch FILTER OFF LPF A ch A ch FILTER OFF HPF B ch 100 150 80 1 2 0.5 3 0.3 1 2 0.5 L 3 0.3 50 LPF FREQUENCY [ Hz ] 4 [ MIN ] 5 0.2 [ MAX ] 4 [ MIN ] 5 INPUT SENSITIVITY [ V ] 0.2 [ MAX ] R LINE IN A B SPEAKER LEVEL INPUT This is a 4 channel amplifier including 2 stereo amplifiers in a body. 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. 1 Fuse (30 A) NOTE If you can't find the specified capacity fuse at your store etc., consult your Kenwood dealer. 2 Battery terminal (POWER IN BATT.) 3 Ground terminal (GND) 4 Power control terminal (P.CON) Controls the unit ON/OFF. NOTE Controls the unit power. Be sure to connect it with all the systems. 5 Speaker output terminals (A.ch/ B.ch) • 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 2Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2Ω or greater for each channel. • Bridged Connections: When you wish to use the unit as a highoutput amplifier, bridged connections are used. (Make connections to the LEFT channel ª and the RIGHT channel · SPEAKER OUTPUT terminals.) The speakers to be connected should have an impedance of 4Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 4Ω or greater. 6 FILTER switch (B.ch) This switch allow filtering of the speaker output signals. • LPF (Low-Pass Filter) position: The filter outputs the band of lower frequencies than the frequency set with the "LPF FREQUENCY" control. • OFF position: The entire bandwidth is output without filtering. 7 FILTER switch (A.ch) This switch allow filtering of the speaker output signals. • HPF (High-Pass Filter) position: Only frequencies of 80 Hz or higher are output. (Frequencies below 80 Hz are cut.) • OFF position: The entire bandwidth is output without filtering. 8 LPF FREQUENCY control (B.ch) This control adjusts the frequency band output from this unit. 9 INPUT SENSITIVITY control (A.ch/ B.ch) Set this control according to the pre-output level of the center unit connected with this unit. NOTE For the pre-output level, refer to the in the instruction manual of the center unit. 0 LINE IN terminal (A.ch/B.ch) - SP LEVEL INPUT terminal The genuine-accessory car stereo shall have a maximum power output of no more than 40 W. = Power indicator When the power is turned on, the Power indicator lights. 2 4 2 1 保险丝 (30 A) 注 2 POWER IN BATT 3 GND 4 P.CON 注 5 SPEAKER OUTPUT A.ch/B.ch 2 2 LEFT RIGHT SPEAKER OUTPUT 4 4 欧 姆。 6 FILTER B.ch • LPF LPF FREQUENCY OFF 7 FILTER A.ch • HPF 80 Hz 80 Hz OFF 8 LPF FREQUENCY B.ch 9 INPUT SENSITIVITY A.ch/B.ch 注 0 LINE IN A.ch/B.ch) 40 瓦。 铅 汞 镉 (Pb) (Hg) (Cd) (Cr(VI)) (PBB) (PBDE) × ○ ○ × ○ ○ 框架 × ○ ○ × ○ ○ × ○ ○ × ○ ○ SJ/T11363-2006 SJ/T11363-2006 表示例 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 POSSIBLE CAUSE SOLUTION No sound. • Input (or output) cables are disconnected. • Connect the input (or output) cables. (No sound from one side.) (Blown fuse.) • Protection circuit may be activated. • Volume is too high. • The speaker cord is shorted. • Check connections by referring to . • Replace the fuse and use lower volume. • After check the speaker cord and fixing the cause of the short, replace the fuse. The output level is too • The input sensitivity adjusting control is • Adjust the control correctly referring to small (or too large). not set to the correct position. . The sound quality is • The speakers wire are connected with bad. wrong ª/· polarity. (The sound is distorted.) • A speaker wire is pinched by a screw in the car body. • Connect them properly checking the ª/· of the terminals and wires well. • Connect the speaker wire again so that it is not pinched by anything. • The switches may be set improperly. • Set switches properly by referring to . 故障检修 原因 排除方法 Specifications Specifications subject to change without notice. Audio section Max power output 500 W (125 W × 4) Low pass filter frequency (-18 dB/oct.) (B channel) Rated power output (+B = 14.4V) 50 Hz - 200 Hz (variable) Normal (4 40 W × 4 (20 Hz - 20 kHz, ≤ 1.0 % THD) High pass filter frequency (-12 dB/oct.) (A channel 80 Hz Normal (2 60 W × 4 (1 kHz, ≤ 1.0 % THD) Bridged (4 130 W × 2 (1 kHz, ≤ 1.0 % THD) Speaker impedance 2 Ω - 8 Ω General 4 Ω - 8 Ω (Bridged) Operating voltage 14.4 V (11 - 16 V allowable) Frequency response (+0, -3 dB 5 Hz - 50 kHz Current consumption 20 A Sensitivity (RCA 0.2 V - 5.0 V Dimensions (W × H × D 330 × 55 × 215 mm Signal to noise ratio 95 dB Weight...2.6 kg Input impedance 10 kΩ 规格 音频部 500 W (125 W × 4 18 dB/oct.) (B声道) B = 14.4V) 50 Hz - 200 Hz (可变) 普通 (4 Ω) (20 Hz - 20 kHz, ≤ 1.0 % THD)......... 40 W × 4 12 dB/oct.) (A 80 Hz 普通 (2 Ω) (1 kHz, ≤ 1.0 % THD 60 W × 4 桥接 (4 Ω) (1 kHz, ≤ 1.0 % THD 130 W × 2 2 Ω - 8 Ω 共同 4 Ω - 8 Ω (桥接) 0, - 3 dB 5 Hz - 50 kHz 灵敏度 (RCA 0.2 V - 5.0 V 95 dB 10 kΩ 14.4 V (允许11 - 16 V 20 A 330 × 55 × 215 mm 2.6 kg