Kenwood KAC-6402 Car Stereo System User Manual
Contents
1. KENWOOD 4 3 2 CHANNEL POWER AMPLIFIER KAC 6402 INSTRUCTION MANUAL KENWOOD CORPORATION Safety precautions Cleaning the unit a gt y the front panel gets dirty turn off the power and To prevent injury or fire take the following wipe the panel with a dry silicon cloth or soft cloth precautions When extending the ignition battery or ground ACAUTION wires make sure to use automotive grade wires Do not wipe the panel with a hard cloth or a cloth or other wires with a 5 mm AWG 10 or more to dampened by volatile solvents such as paint thinner prevent wire deterioration and damage to the wire and alcohol They can scratch the surface of the coating panel and or cause the indicator letters to peel off To prevent a short circuit never put or leave any metallic objects such as coins or metal tools inside the unit If the unit starts to emit smoke or strange smells turn off the power immediately and consult your To prevent battery rise When the unit is used in the ACC ON position without turning the engine ON it depletes the battery Use it after starting the engine Kenwood dealer Protection function Do not touch the unit during use because the There is a Protection function installed in the unit surface of the unit becomes hot and may cause to protect the unit and speakers from various burns if touched problems When Protection operates the indicator informs you of the cond2. ition Refer to page 5 ACAUTION Accessories To prevent damage to the machine take the l Numberof following precautions Partname External View Items Be sure the unit is connected to a 12V DC power supply with a negative ground connection Do not open the top or bottom covers of the unit Do not install the unit in a spot exposed to direct Terminal cover Power sunlight or excessive heat or humidity Also avoid terminal places with too much dust or the possibility of water splashing When replacing a fuse only use a new one with he prescribed rating Using a fuse with the wrong rating may cause your unit to malfunction To prevent a short circuit when replacing a fuse irst disconnect the wiring harness Self tapping screws 24 x 16 mm Speaker level input cable NOTE fyou experience problems during installation consult your Kenwood dealer If the unit does not seem to be working right consult your Kenwood dealer 2 English Installation Self tapping screw 84 x 16 mm 000 0 3 Installation board etc thickness 15 mm or more ACAUTION 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 D
3. mplifiers A and B can be adjusted independently regardless of the position of the input selector switch Use the diagram on the right as a guide NOTE For the pre output level or the maximum power output refer to the lt Specifications gt in the instruction manual of the center unit English 5 Connection 6 English E 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 1 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 speaker wires Connect the power wire power control wire and grounding wire following this order Install the unit in the car Connect the negative terminal of the battery AWARNING To prevent fire caused by a short in the wiring connect a fusible link or breaker nearby the battery s positive terminal ACAUTION If sound is not output normally immediately turn power off and check connections Be sure to turn the power off before changing the setting of any switch If the fuse blows check wires for shorts then replace the fuse with one of the same rating Check that no u
4. nconnected wires or connectors are touching the car body Do not remove caps from unconnected wires or connectors to prevent short circuits Connect the speaker wires to appropriate speaker connectors separately Sharing the negative wire of the speaker or grounding speaker wires 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 mB WN NO H Wiring Take the battery wire for this unit directly from the battery If it s connected to the vehicles wiring harness it can cause blown fuses etc Ifa buzzing noise is heard from the speakers when the engine is running connect a line noise filter optional to each of the battery wire Do not allow the wire to directly contact the edge of the iron plate by using Grommets Connect the ground wire 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 wire is not connected 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 a diameter of 5 mm AWG 10 o
5. nsitivity adjusting control is not set to the correct Adjust the control correctly referring to lt Controls gt position The sound quality isbad The speakers wire are connected Connect them properly checking the The sound is distorted with wrong Opolarity O O of the terminals and wires A speaker wire is pinched by a screw in the car body The switches may be set improperly well Connect the speaker wire again so that it is not pinched by anything Set switches properly by referring to lt System examples gt 12 English Specifications Specifications subject to change without notice Audio Section ax Power OU E iio iacioa 400W Rated Power Output Normal eO 20H 20 We 00895 HD sa oa a ein 35Wx4 Frequency Respons Signal to Noise Rati nput Impedance Low Pass Filter Freq General Operating Voltage Current Consumpti Dimensions W x H Weight 20 1 kHz 0 8 THD Bridged 4 O 1 kHz 0 8 THD High Pass Filter Frequency 12 dB oct 100Wx2 10Hz 45 kHz e 0 3 dB Sensitivity rated output MAX O2V MIN 5 0 V uency 12 dB oct 50 200 Hz variable 50 200 Hz variable 144V 11 16 V allowable ON xD SA ARSA RAV DREN AD O re A a O a 3 0 kg 330 x 59 x 242 mm English 13 KENWOOD
6. o not install the unit under the carpet Otherwise heat build up occurs and the unit may be damaged 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 When making a hole under a seat inside the trunk or somewhere else in the vehicle check that there is nothing hazardous on the opposite side such as a gasoline tank brake pipe or wiring harness and be careful not to cause scratches or other damage Do not install near the dashboard rear tray or air bag safety parts The installation to the vehicle should securely fasten the unit to a place in which it will not obstruct driving If the unit comes off due to a shock and hits a person or safety part it may cause injury or an accident After installing the unit check to make sure that electrical equipment such as the brake lamps turn signal lamps and windshield wipers operate normally English 3 Controls Indicator Ach FILTER Beh FILTER AchOPERATON 8 6 OPERATION INPUT SELECTOR SES self Le STEREO MONalleh STEREO Monolcon SEI CD 7 FILTER switch A ch B ch This switch allows to apply high pass or low pass filtering
7. r 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 H 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 English 7 11 EE ET PERSE GND System examples 10 english English 11 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 POSSIBLE CAUSE PROBLEM No sound Input or output cables are SOLUTION Connect the input or output No sound from one side Blown fuse disconnected Protection circuit may be activated Volume is too high The speaker cord is shorted cables Check connections by referring to lt Protection function gt 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 small or too large The input se
8. to the speaker outputs e HPF High Pass Filter position The filter outputs the band of higher frequencies han the frequency set with the FILTER FREQUENCY control OFF position The entire bandwidth is output without filtering e LPF Low Pass Filter position The filter outputs the band of lower frequencies han the frequency set with the FILTER FREQUENCY control 2 OPERATION switch A ch B ch This switch is used to select the operation mode of the amplifier e STEREO position The amplifier can be used as a stereo amplifier e 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 3 INPUT SELECTOR switch This switch selects the input method of the signals to be amplified by amplifiers A and B AB position Amplifies both of the signals input to amplifiers A and B A position Amplifies only signal input amplifier A with both amplifiers A and B FILTER FREQUENCY control A ch B ch Sets the cutoff frequency when the FILTER switch is set to LPF or HPF 4 English 1 40 LI as a mars Gemas W INPUT SENSITIVITY VI INPUT SENSITIVITY control A ch B ch 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 genuine accessory Car stereo The sensitivities of a
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