Kenwood KAC6402 free download

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POWER AMPLIFIER KAC-6402 SERVICE MANUAL © 2005-5 PRINTED IN JAPAN B53-0285-00 (N) 1708 KAC-6402 (E type,M type) 4/3/2channel Powe Amplifie MAXIMUMPOWER KAC-6402 (K type) 4/3/2channel Power Amplifier Connecting cord assy (E30-6144-05) 190mm Accessory (W01-1606-05) Fuse (F52-0014-05) Screw set (N99-1587-05) This product uses Lead Free solder. KAC-6402 BLOCK DIAGRAM LINE IN AL ISOLATION AMPLIFIER Ach INPUT GAIN CONT. ST/MONO +1 HPF LPF+6dB POWER AMPLIFIER SPEAKER OUT AL FREQ. CONT. LINE IN AR ISOLATION AMPLIFIER -1 HPF LPF+6dB MUTE POWER AMPLIFIER SPEAKER OUT AR LINE IN BL ISOLATION AMPLIFIER LINE IN BR ISOLATION AMPLIFIER Bch INPUT GAIN CONT. ST/MONO 15V AVR +1 HPF LPF+6dB POWER AMPLIFIER SPEAKER OUT BL FREQ. CONT. -1 HPF LPF+6dB POWER AMPLIFIER SPEAKER OUT BR A-AB DC/DC CONVERTER DC DETECT AND OVER ROAD PROTECTION P CON CIRCUIT P CON BATTERY SPEAKER INPUT +6dB 0dB THERMAL PROTECTION OVER VOLTAGE PROTECTION +29.5dB COMPONENTS DESCRIPTION AUDIO UNIT (X09-5890-10) Ref. No. IC1,3 IC2,4 IC5,9 IC6,10 IC7,8,11,12 IC13 Q3,4 Q5,6 Q7,8,9,10 Q11,12 Q101,102,201,202 Q103~106,203~206 Q107~110,207~210 Q111,112,211,212 Q113,114,213,214 Q115~118,215~218 Q119~122,219~222 Q123~126,223~226 Q601 Q602 Q603 Q604 Q605 Q606 Q610 Q611,612 Application / Function Buffer amplifier Isolation amplifier Buffer amplifier Reverse buffer amplifier LPF/HPF DC-DC converter Constant voltage power supply DC-DC converter DC-DC converter DC-DC converter Input mute circuit Power amplifier Power amplifier Power amplifier Power amplifier Power amplifier Power amplifier Power amplifier B-class step mute Mute circuit Input mute Power ON/OFF Power ON/OFF Power ON/OFF Excess current detection DC output voltage detection Operation / Condition / Compatibility Lowers impedance and amplify by 6dB Reduces common mode noise Rch operates as reverse amplifier Reverse amplifier operation of 6dB LPF and HPF with variable cut off Oscillation and control of DC-DC converter Constant voltage control of ±15V Switching FET Gate driver for Q5,6 ON/OFF of IC13 output Shock noise absorption at power ON/OFF First step differential absorption Second step differential absorption Second step current mirror load Power amplification circuit bias temperature compensation Excess current detection Power amplification step darlington driver Power amplification step darlington output transistor Mute signal generation circuit: Normally ON Mute signal generation circuit: Normally OFF Mute signal generation circuit: Normally OFF Primary power supply control transistor: Normally ON Power control circuit Excess voltage protection circuit: Goes OFF when primary input voltage of 16V or less Goes ON when detecting excess current and turns OFF DC-DC converter Goes ON when detecting DC output voltage from power amplifier 2 KAC-6402 COMPONENTS DESCRIPTION Ref. No. Q613,614 Q615,616 Q617,618 D1 D2,3 D4,5 D6~9 D22,201,101,102 D32~37 D103,104,203,204 D105,106,205,206 D107~110,207~210 D229,43