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8 EnglishTroubleshooting GuideWhat might appear to be a malfunction in your unit may just be the result of slightmisoperation or miswiring. Before calling service, first check the following table forpossible problems.PROBLEM POSSIBLE CAUSE SOLUTIONNo sound.(No sound from one side.)(Blown fuse.)• Input (or output) cables aredisconnected.• Protection circuit may be activated.• Volume is too high.• The speaker cord is shorted.• Connect the input (or output) cables.• Check connections by referring to.• Replace the fuse and use lowervolume.• After check the speaker cord and fixingthe cause of the short, replace the fuse.The output level is toosmall (or too large).• The input sensitivity adjusting controlis not set to the correct position.• Adjust the control correctly referring to.The sound quality is bad.(The sound is distorted.)• The speakers wire are connected withwrong 9 / · polarity.• A speaker wire is pinched by a screwin the car body.• The switches may be set improperly.• Connect them properly checking the9 / · of the terminals and wires well.• Connect the speaker wire again so thatit is not pinched by anything.• Set switches properly by referring to.SpecificationsCEA-2006 .............................................................................. KAC-7404 KAC-6404Primary Power Output Ratings(RMS Watts per channel @ 4 ohms, 1 % THD+N)....................................... 60 W × 4 40 W × 4Signal to Noise Ratio (Reference: 1Watt into 4 ohms) ...................................... 80 dBA 80 dBAAudio Section....................................................................... KAC-7404 KAC-6404Max Power Output .....................................................................................720 W (180 W × 4) 500 W (125 W × 4)Rated Power OutputNormal (4 Ω) (20 Hz – 20 kHz, 1 % THD) ............................................... 60 W × 4 40 W × 4Normal (4 Ω) (DIN : 45324 , +B = 14.4V) ................................................ 60 W × 4 40 W × 4Normal (2 Ω) (1 kHz, 1 % THD).................................................................... 90 W × 4 60 W × 4Bridged (4 Ω) (1 kHz, 1 % THD).................................................................180 W × 2 130 W × 2Frequency Response (+0, –3 dB) .................................................................... 5 Hz – 50 kHz 5 Hz – 50 kHzSensitivity (rated output) ........................................................................................0.2 V – 5.0 V 0.2 V – 5.0 VSignal to Noise Ratio ...............................................................................................................94 dB 94 dBInput Impedance ..................................................................................................................... 10 kΩ 10 kΩLow Pass Filter Frequency (-12 dB/oct.).....................................50 – 200 Hz (variable) 50 – 200 Hz (variable)High Pass Filter Frequency (-12 dB/oct.) ......................................................................80 Hz 80 HzGeneral ................................................................................. KAC-7404 KAC-6404Operating Voltage .................................................................... 14.4 V (11 – 16 V allowable) 14.4 V (11 – 16 V allowable)Current Consumption .............................................................................................................. 36 A 19 ADimensions (W × H × D) .......................................................................330 × 59 × 230 mm 330 × 59 × 230 mm................................................................................................ 13 × 2-5/16 × 9-1/16 inch 13 × 2-5/16 × 9-1/16 inchWeight .........................................................................................................................2.9 kg (6.4 lbs) 2.7 kg (5.9 lbs)• Specifications subject to change without notice.130.com.uaAutogood products “130” |
