Instrukcja obsługi Kenwood KAC-746

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KAC-746
4-CHANNEL POWER AMPLIFIER
INSTRUCTION MANUAL
© B64-1176-00 (EM)

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Safety precautions •Do not open the top or bottom cover. 2WARNING •Do not install the unit in places it is Take the following precautions to exposed to direct sunlight, high heat or prevent fire and avoid personal humidity, water may splash over it, or dust exists. injury : •When extending the battery cable, or NOTE 2 ground cable, use 5mm (AWG10) or larger automotive grade cable to avoid •If you have difficulty in installing this unit cable deterioration or damage to the in your vehicle, contac

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Installation procedure 1. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. 2. Set the unit according to the intended usage. 3. Connect the input and output cables of the units. 4. Connect the speaker cables. 5. Connect the power cable, power control cable and grounding cable following this order. 6. Install the unit in the car. 7. Connect the negative - terminal of the battery. 2CAUTION • Be sure to turn the power off before changing the s

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Controls 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. 15 SPEAKER LEVEL INPUT FUSE(30A) BRIDGED POWER IN LEFT RIGHT SPEAKER OUTPUT LEFT RIGHT BRIDGED A GND A SPEAKER LEVEL INPUT BATT P.CON(REMOTE) A A B B B B L R L R 2346 7 8 9 0 ! @ GND A LINE IN B A + B LINE OUT MONO INPUT I

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• STEREO position: The amplifier can be used as a stereo amplifier. • L+R position: The input left and right signals are combined before being amplified. Use this position when the unit is used for subwoofer speakers or the L+R (monaural) sound is required. • 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.) ! INPUT SENSITIVITY control Set th

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Connection RCA cable connection BLINE IN (Rear) 2CAUTION CENTER UNIT Do not connect cables and (Cassette receiver, leads to both RCA cable input CD receiver, etc.) jacks and the speaker input Power control cable ALINE IN (Front) terminals simultaneously, for this may cause malfunction POWER IN RCA cable (Commercially GND BATT P.CON(REMOTE) or damage. available part) B Left input (White) A Left input (White) GND A LINE IN B A { B LINE OUT MONO INPUT INPUT SENSITIVITY(V) L L SENSITIVITY(V) 100

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Power and Speakers cable connection • If a buzzing noise is heard from the Front left speakers when the engine is Power control speaker running, connect a line noise filter (REMOTE) lead Front right (optional) to each of the battery terminal speaker cable. A Left output • Do not allow the cord to directly A Right output (Front left) contact the edge of the iron plate (Front right) by using Grommets. SPEAKER LEVEL INPUT FUSE(30A) POWER IN BRIDGED LEFT RIGHT SPEAKER OUTPUT LEFT RIGHT A BRIDGED A

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System examples Full-range 4-channel + Subwoofer system Switch setting 100 80 100 150 L L FILTER OPERATION 80 150 A OFF HPF LPF R R 50 LPF 200 50 HPF 200 CENTER UNIT FREQUENCY(Hz) STEREO MONO(Lch) L+R L L CONTROL A B 80 150 100 R R A B A 100 OPERATION FILTER 80 INPUT SELECTOR OFF 150 L HPF LPF A+B 50 LPF 200 LINE OUT 50 HPF 200 R STEREO MONO(Lch) FREQUENCY(Hz) L+R CONTROL B Amplifier High-power 2-channel system Switch setting 100 80 100 150 L L (Bridged) 80 FILTER OPERATION 150 A OFF HPF LPF R R

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Troubleshooting guide Often, what appears to be a malfunction is due to user error. Before calling for service, please consult the following table. Symptom Cause Remedy No sound. • Input (or output) cables are • Connect the input (or output) (No sound from one side.) disconnected. cables. • Protection circuit may be • Check connections by referring activated. to "Protection function". • The fuse may be blown • Replace the fuse with a new because the volume was too fuse and use a lower volume. hi