Kenwood KAC-629S Service Manual

Also see for KAC-629S: Instruction manual

Contents

A C E G IB D F H J2135746B LINEB LINE0V0V0V0V0V0V0.9V0.26V-33.8V0.26V-34.5V-33.8V0.8V0.1V-33.8V-34.5V0.2V-33.8V-1.26V1.12V-1.26V-0.58 0.55V34.5V0V3.5V-34.8V-1.26V -34.8V-0.66V0V0V2.3V17.0V29.0V1.19V-0.54V-1.23V1.17V 34.5V0.55V 0V-0.62V-34.8V0V3.5V34.5V-4.2V17.0V18.1V29.0V34.5V0V0.21V30.0V0.75V0V0V0V0V14.5V15.3V5.4V15.2V0V5.4V15.2V3.38V0V0V-1.23V-34.8V2.35V3.8V0.1V0.63V0V15.3V0.57V0.57V15.1V3.8V1.75V5.1V0V0V0V0V0V18.1V0V0V0V0V0V0V0V0V0V0V0V0V 0V-17.5V-17.5V18.1V0V1.13V-33.8V-1.26VCN2CN1J2J3Lch 1Rch 2Lch 1Rch 2Q37Q36D28D32D33Q19Q21D27D12D2D1D3D4(1/4)IC1(2/4)IC1IC1(3/4)IC1(4/4)IC3(1/2)IC3(2/2)D9D10Q22D31D35 D11D17D16Q1Q2Q7Q3 Q5Q8Q35Q6Q4D18D29D30Q9Q10D8D37 Q29Q11Q23Q31Q13J1BATTGNDP-COND34D25D26 Q18Q17D15D13D14Q38Q39D19D7SP OUTQ32Q14Q12 Q30IC1IC3IC4Q1,2,7-10,19,23,24,35,36,38-40Q3-6,37Q11,12Q13,14Q17,18Q21Q22Q29,30Q31,32D1-4,8,16-19,25-30,32,33,36-42D7D9,10,34D11,35D12D13D14D15D31: UPC4574C: NJM4565D: UPC494C: 2SC945(A)(Q,P): 2SA733(A)(Q,P): 2SC1627A: 2SA817A: IRFIZ34G: 2SC3940A(R,S): DTA124EL: 2SC5100LB: 2SA1908LB: 1SS131: RD7.5JS(B): RD16JS(B): RD8.2JS(B): B30-1460-05: FMU22S: FMU22R: 1N5406-M: RD5.1JS(B2)2 Rch1 LchD36Q40Isolation amp.L.P.F.Switching regulatorMutingtransistorDifferential amp.-compensatingFor temperature PowerdriverProtection forovercurrentPower switchingP-condetectorA-class powersupply controllerstagePowerA-classmutingP-con detectorPowerswitchDC protectionOvervoltageprotectiondriverMutingGND LINESIGNAL LINEAAWH2WH1SENSITIVITYINPUTDC/DC converterADJIDLEADJIDLEF1(25A)4321478653211310911121415162143R37 2.2KR38 2.2K22u35C25++++22u35C2722u35C2822u35C26REFERENCEREQULLATOROSCILLATOR1000PR531.2KR541.2KC370.13.3KR5630KR57C420.1u50+6.8KR7316KR68680TH127KR642.2KR65R6610K+R694.7K+680KR62R6010K R67C4022KR58100R591.5KR75 R741.5K100u35C38+10u50C41R632.7KR6127K1u50C3956239101312C822PR1 1KC1 1000PC2 1000PC510u50+R510K10KR610KR47C722PR4910K10KR48R122.2KC151000P2.2KR11R956R1056VR1 5K150R158 R82.2K150R160 2.2KR14150R159 2.2KR13R157150 R72.2K20KR1920KR1823R2 1KR151KR4610K2.2KR3R42.2KR1620KR1720K22PC11C1222P714 81114100R20R211004.7KR27R291.8K4.7KR28+10u50C6HPF / OFF/ LPFSTEREO / L+R/ L(MONO)R3427K27KR35R26 4.7K17 6.8KR31R3322K27KR36C210.120.082C200.022C22R301KR328.2K0.33u50C17 +0.1u50C19+C162.2u50++C180.47u501KR45C1422u16+C13 +22u164568R523.3K3.3KR253.3KR24C54 C48 220u16+R81 82KC51 1800PR80 82K2200P22u35C50+1.5KR221.5KR23C8022u16++22u16C79 2.2u50C49+7.5KR78C61100PR82820820R84100R90 4700PC60 100PC62563.9KR86 7.5KR79+22u35C53820R85R91100C594700P10PC5822u35C56+3.3KR94R9682KR897.5KR87R16147K C576PC5522u35 +R9356R92R51150KR95 3.3KR97 3.3K3KR1013KR100 VR2 470 VR3 4701000PC63C641000PR8882KR104100100PC74100PC72C73100P100PC71R106100100R107R105100R1150.1R109220 1/2W1/2WR1080.1R1140.1R112 0.1R113R1711KR17910KC85+100u1022KR180TP1R1753KC680.047R12810R164 100KR163 100KC670.047 10R127L13300u16+C45330R98 91R991/2WR702.7K R713.6K10R77+470u35C43ERRORAMPR1674.7KC7710u +R1684.7K390R124390R123R1251.5KR1261.5K3.3KR55T110 1/2WR122C462200u352200u35C47++47u16C75+R166 5.6KC701000P16R1031K2WR72 470 1WR76470 1W820R83R1021K2W2118KR44R42 18K18KR41R43 18K3.3K+C100 0.1u50IC1IC3IC4Q1,2Q3-6Q9,10 Q11-14Q23-26,41Q17,18Q19Q21Q29-32Q35Q36Q37Q38,39Q40VR3RCA IN(X09- ) (C/3)SP IN(X09- ) (B/3)AUDIO UNIT (X09-5160-10) (A/3)IC4S1S218uHQ25,26 : 2SA992(F,E)Q41 : 2SC1845(F,E)4700PC812WD39Q25 R1731KR1773K4700PC83Q24R1721KR1763K4700PC82Q26 R1741KR1783K4700PC84D38D42D40D412W220Q41Voltage amp.Q7,8OPERATIONFILTERKAC-629S2SA773(A)2SA817A2SA9922SC1627A2SC18452SC3940A2SC945(A) NJM4565D UPC4574C UPC494CCAUTION: For continued safety, replace safety critical componentsonly with manufacturer's recommended parts (refer to partslist).indicates safety critical components. For continued protectionagainst risk of fire, replace only with same type and rating fuse(s). Toreduce the risk of electric shock, leakage-current or resistancemeasurements shall be carried out (exposed parts are acceptablyinsulated from the supply circuit) before the appliance is returned tothe customer.