Kenwood KAC-PS521 Service Manual

Also see for KAC-PS521: Instruction manual Instruction manual Instruction manual

Contents

KAC-PS521/X5212BLOCK DIAGRAM(X09-5760-10)(X08-4150-10)I.S.A I.F.SL.P.FH.P.FLCD DRIVERLCDV PROT. TEMPPROT.IC1,10 IC1 IC3,4,6IC5ED1 IC7MUTEPOWER AMPQ101,102CONT.AMPu-COM5V AVRFAN AVR FAN-15V AVR+15V AVRDC/DCCONVERTERSW 5VAVRQ69Q66Q356,358IC2 Q61Q62IC6P-CONTGNDBATto POWER AMPto H/UCURRENT PROTDC PROT● PREAMPLIFIER UNIT (X08-4150-10)Ref. No Application / Function Operation / Condition / CompatibilityIC1 Infrasonic filter Controlled by microprocessorIC3 Tone and volume variableIC4 6dB voltage amplificationIC5 HPFLPFIC6Lch : 6dB voltage amplificationRch : Signal 180 reverse and 6dB voltage amplificationIC7 LCD driver Controlled by microprocessor● AUDIO UNIT (X09-5760-10)Ref. No Application / Function Operation / Condition / CompatibilityIC1 BufferIC2 DC/DC converterIC3 AMP communication bufferCOMPONENTS DESCRIPTION