McIntosh-MC602-pwr-sm 维修电路原理图.pdf

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1、SERVICE MANUALPOWER AMPLIFIERPerformance Specifications . 2Notes . 2Rear Panel. 3Section Location . 4Block Diagram . 5 - 6Interconnection Diagram . 7 - 8Heatsink Schematic and PCB . 9 - 10Driver Schematic and PCB . 11 - 13Input Schematic and PCB. 14Capacitor Schematic and PCB . 15Meter Schematic and

2、 PCB. 17 - 19Indicator Schematic and PCB. 20PG Light Schematic and PCB . 21 - 22Meter Lamps Schematic and PCB . 21 - 22Standby Light Schematic and PCB . 21 - 22Parts List. 23 - 24Exploded View and Parts List. 25 - 28Repacking Instructions . 29CONTENTSRadioFans.CN 收音机爱 好者资料库PERFORMANCE SPECIFICATIONS

3、2NOTESPOWER OUTPUT STEREO600 watts into 2, 4 or 8 ohm loads is the minimum sinewave continuous average power output per channel withboth channels operating.OUTPUT LOAD IMPEDANCE2, 4 or 8 ohmsRATED POWER BAND20Hz to 20,000HzDYNAMIC HEADROOM2.1dBFREQUENCY RESPONSE+0, -0.25dB from 20Hz to 20,000Hz+0, -

4、3dB from 10Hz to 100,000HzTOTAL HARMONIC DISTORTION0.005% maximum at any power level from 250 milliwattsto rated power per channel from 20Hz to 20,000Hz, allchannels operating.INTERMODULATION DISTORTION0.005% maximum if instantaneous peak output per chan-nel does not exceed twice the rated output wi

5、th all chan-nels operating for any combination of frequencies from20Hz to 20,000Hz.SIGNAL TO NOISE RATIO (A WEIGHTED)93dB Unbalanced (120dB below rated output)97dB Balanced (124dB below rated output)SENSITIVITY2.45 Volts Unbalanced Input4.9 Volts Balanced InputINPUT IMPEDANCE10,000 ohms Unbalanced a

6、nd BalancedWIDE BAND DAMPING FACTOR100 8 ohmsPOWER REQUIREMENTS100 Volts, 50/60Hz at 18 amps110 Volts, 50/60Hz at 16.5 amps120 Volts, 50/60Hz at 15 amps220 Volts, 50/60Hz at 8.2 amps230 Volts, 50/60Hz at 7.8 amps240 Volts, 50/60Hz at 7.5 ampsNOTE: Refer to the rear panel of the MC602 for the correct

7、 voltage.DIMENSIONSFront Panel: 17-3/4 inches (46cm) wide, 11 inches (28cm)high. Depth behind front mounting panel is 19-5/8 inches(49.83cm). Clearance required in front of front panel is1-3/4 inches (4.5cm).WEIGHT155lbs. (70.3kg) Net180lbs. (81.6kg) Shipped1. The heavy notes on the schematic denote

8、 the primarysignal path.2. Unless otherwise noted, all voltages indicated on theschematics are measured under the following conditions:a. AC input at 120 volts, 50/60Hz.b. All voltages are +/-10% with respect to ground. Ahigh impedance (10 megaohm) voltmeter must be used.3. Unless otherwise specifie

9、d:a. Resistor values are in ohms.b. Capacitor values are microfarads (uF).c. Inductor values are in microhenries (uH).4.On PC board drawings, Square pad indicates:a. Polarized Capacitors - Positiveb. Diodes - Cathodec. Others - Pin 15.WARNINGParts marked with the symbol have criticalcharacteristics.

10、 Use only replacement parts recom-mended by the manufacturer.RadioFans.CN 收音机爱 好者资料库REAR PANEL3MC6024SECTION LOCATIONS56MC602BLOCK DIAGRAM78INTERCONNECTHEATSINK 0493689102A 2B2D2CMC602DRIVER 04936911123DRIVER 04936913143INPUT 0492224MC602CAPACITOR 04936751516NOTESMETER 04938417186MC602METER 04938461

11、920INDICATOR 0493717PG LIGHT 04937021228MC602METER LAMPS 0493739STANDBY LIGHT 04939510PARTS LIST23Part No.DescriptionReference No.049368 HEATSINK061300MONO CAP 100PF 100V 5% NPO T&RC7 C8061304MONO CAP .01UF 50V 5% X 7R T&RC9 C16061305MONO CAP .1UF 50V 5% Z50 T&RC3 C5064363CAP POLYPROP 0.15MF 10% 250

12、VDCC10066446CAP ELECT 47MF 35VC1 C2070047SILICON DIODE 1N4148 T&RD1 D2 D3 D4 D5070133DIODE 200V,6AD6 D71172132-PIN MALE CONNECTORJ4-117217MALE CONN 7 PINJ1-117404HEADER 2-PIN 0.156J2-117708FASTON BLADE W/FEETJ4117712FASTON BLADE .110J5132171TRANSISTOR NPNQ1132172TRANSISTOR SI PNP MPSA55Q2132285TRANS

13、ISTOR NPN 25C3334CQ6132286TRANSISTOR PNP 2SA32ICQ7134390TRIM POT 200 OHM 20% HORIZ ADR13137093MET OX 680 5% .5WR2 R9137094MET OX 1.8K 5% .5WR6 R11137095MET OX 430 5% .5WR7137096MET OX 47 5% .5WR12139177WIREWOUND RES 0.5 OHM 5W 5%R31 R32 R33 R34 R35 R36R37 R38 R40 R41 R42 R43144071RES MF 365 1% 1/4WR

14、1 R8144187RES MF 22.1K 1% 1/4WR3 R10144243RES WW 0.1 5% 1WR39144249THERMAL SENSORRT1144378RES MF 2.21 OHM 1/4W 1%R30049369 DRIVER061002DISC CAP 1.8PF+/-.25PF NPOC42 C43061199DISC CAP 100PF 10% N1500 50VC2 C3 C4 C5 C6 C7 C8 C9061248DISC CAP .1MF,25V,Y5TC1 C10061256M.CAP 470PF,5%,100VC26 C27 C28 C2906

15、4308CAP MPOLY .0047UF 5% 63-250VDCC34 C35 C36 C37064316CAP M POLY .022UF 5% 63VDCC38 C39064363CAP POLYPROP 0.15MF 10% 250VDCC30 C31 C32 C33064364CAP POLYPROP .047MF 10% 250VC22 C23 C24 C25066244CAP ELECT 0.47UF 50V 20%C20 C21066327CAP ELECT 470UF 10VC40 C41066446CAP ELECT 47MF 35VC15 C18066462CAP EL

16、ECT 1OUF 100VDCC11 C12 C13 C14 C16 C17 C191172154-PIN CONNECTORJ8 J9117217MALE CONN 7 PINJ1- J2- J3- J4-117219MALE CONN 10 POSJ7-11727911-POS. MALE CONN.J6-132222N. CHANNEL FETQ2 Q3 Q5 Q6 Q7 Q8 Q10 Q11132223TRANSISTOR NPN MPS4124 2K/REELQ12 Q13 Q17 Q19 Q24 Q25 Q29Q31 Q36 Q67 Q70 Q78 Q80132224TRANSIS

17、TOR PNPQ1 Q16 Q20 Q22 Q23 Q28 Q32Q34 Q35 Q37 Q38 Q39 Q59 Q66132254TRANSISTOR NPNQ14 Q18 Q26 Q30 Q60 Q63 Q64Q71 Q74 Q75 Q76 Q77132255TRANSISTOR PNPQ15 Q21 Q27 Q33 Q61 Q62 Q65Q68 Q69 Q72 Q73 Q79132285TRANSISTOR NPN 25C3334CQ55 Q56 Q57 Q58132286TRANSISTOR PNP 2SA32ICQ40 Q41 Q42 Q43133260DUAL OPERATIONA

18、L AMPLIFIERIC1137042FLAMEPROOF RES 47 OHM 5% 1/4WR3 R27 R74 R80139005WIRE RES 2 OHMS 10% 5WR110 R112 R114 R116139119WIRE RES 4 OHMS 5% 5WR109 R111 R113 R115144015RES MF 33.2K 1% 1/4WR104 R106 R107 R108144028RES MF 866 1% 1/4WR2 R4 R30 R57 R64 R65 R83 R91144071RES MF 365 1% 1/4WR17 R18 R19 R20 R21 R2

19、2 R23 R29R42 R43 R44 R45 R46 R47 R48 R67144090RES MF 1K 1% 1/4WR60 R86144095RES MF 3.32K 1% 1/4WR53 R69 R72 R75 R92 R95 R97 R98144097RES MF 4.75K 1% 1/4WR58 R84144108RES MF 47.5K 1% 1/4WR61 R63 R87 R90144113RES MF 100K 1% 1/4WR76 R77 R78 R79144128RES MF 1.5K 1% 1/4WR10 R12 R35 R37144172RES MF 221 1%

20、 1/4WR6 R24 R31 R49 R150 R151 R152R153144179LDR NETWORK VTL5C9LDR1 LDR2144187RES MF 22.1K 1% 1/4WR7 R32 R101144196RES MF 100 1% 1/4WR5 R62 R89 R100144265RES MF 2.21M 1/4WR9 R15 R34 R40144298RES MF 2.21K 1% 1/4WR103 R105144338RES MF 324 OHM 1% 1/4WR16 R41 R66 R71 R73 R88 R93 R99144352RES MF 174K 1% 1

21、/4WR14 R39 R59 R85144364RES MF 475K 1% 1/4WR8 R33 R55 R81144398METAL FILM RES 3.79K .5% 1/4WR11 R25 R38 R50144401RES MF 6.49K .5% 1/4WR13 R26 R36 R51144443METAL FILM RES 681K 1% 1/4WR68 R70 R94 R96049222 INPUT061191DISC CAP 22PF,10%,NPO 50VC11 C12061196DISC CAP 47PF,20%,N470 50VC7 C8061248DISC CAP .

22、1MF,25V,Y5TC9 C10066445ELECT CAP 10MF, 50V AMMO PACKC1 C2 C4 C6117219MALE CONN 10 POSJ7-117436PJ261G PHON JACK, GOLDJ2-117494MINI JACKJ11- J12-117685XLR RECEPTACLE FEMALEJ3 J4133260DUAL OPERATIONAL AMPLIFIERIC1141025RES CF 100 5% 1/4WR130144053RES MF 10K 1% 1/4WR131 R133 R135 R138 R140 R142144352RES

23、 MF 174K 1% 1/4WR132 R136 R137 R139148059SLIDE SWITCHS1049367 CAPACITOR117404HEADER 2-PIN 0.156J1 J2 J3 J4117708FASTON BLADE W/FEETJ5 J6 J7 J8 J9 J10 J11 J12049384 METER061305MONO CAP .1UF 50V 5% Z50 T&RC14 C21 C22 C25 C26064329CAP M POLY .22UF 5% 63VDCC15 C16 C28064337CAP M POLY 1MF 5% 63VDCC11 C12

24、066289CAP ELECT 4.7UF 10% 35VC27066309CAP ELECT 1000UF 10VC1 C2066361CAP ELECT 1000UF 20% 35VC30 C31066506CAP ELECT 22UF 100VC29070047SILICON DIODE 1N4148 T&RD1 D2 D3 D4 D5 D6 D7 D9 D10D13 D14 D15 D16 D17 D18 D19D21 D22 D23 D24 D25 D28070085ZENER DIODE 6.2V 5% 500MWD27070114ZENER DIODE 16V 5% 500MWD

25、26 D29070131DIODE RECTIFIERD30 D31 D32080014HEATSINK T0220ATTACH TO Q10 Q11 Q12087049RELAY 48VDC VFB48HU ITT TAKAMIK1089089FUSE 2A SLO-BLO 5X20F1117214MALE CONN 3-POS MTS100 NORMAL J8-1172154-PIN CONNECTORJ10-117217MALE CONN 7 PINJ9-2411727911-POS. MALE CONNJ1- J2-117708FASTON BLADE W/FEETJ12 J15 J1

26、6131021TRIAC 8A 200VQ12131022600V TRIAC DRIVER OPTOCOUPLERQ23132223TRANSISTOR NPN MPS4124 2K/REELQ1 Q2 Q13 Q14 Q15 Q16 Q17 Q20132224TRANSISTOR PNPQ18 Q22132226TRANSISTOR P.CHANNEL JUNC.FETQ19132242TRANSISTOR POWER N-CHNQ10 Q11132254TRANSISTOR NPNQ8 Q9 Q24 Q25133093IC REGULATOR +5 VOLTQ21133155IC REG

27、ULATOR -12VIC7133156IC REGULATOR 12VIC6133189IC OPERATIONAL AMPLIFIERIC2 IC4133192IC NAND SCHMIT 2-IN X 4IC5133260DUAL OPERATIONAL AMPLIFIERIC3134383TRIM POT 100K OHM 20%R1 R2139079WIRE RES 1.5K 10% 5WR681392182.7 OHM 2W 5% WW RESISTOR FPR69141023RES CF 8.2 5% 1/4WR35 R39144015RES MF 33.2K 1% 1/4WR6

28、 R17 (R61 & R62 ARE FOR CONVERSION)144083RES MF 5.11K 1% 1/4WR47144091RES MF 1.1K 1% 1/4WR60144095RES MF 3.32K 1% 1/4WR50144097RES MF 4.75K 1% 1/4WR4 R42144108RES MF 47.5K 1% 1/4WR44144117RES MF 200K 1% 1/4WR7 R11 R23 R37144154RES MF 12.1K 1% 1/4WR45 R51 R66144181RES MF 18.2K 1% 1/4WR9 R33144187RES

29、MF 22.1K 1% 1/4WR5 R14 R55 R57144195RES MF 681 1% 1/4WR58 R67144196RES MF 100 1% 1/4WR10 R34 R56144199RES MF 3.16K 1% 1/4WR43 R48144210RES MF 7.5K 1% 1/4WR65144264RES MF 10M 1% 1/4WR8 R32144269RES MF 1M 1/4WR54 R59144271RES MF 2.74M 1/4WR12 R41 R64144296RES MF 1.82K 1% 1/4WR63144364RES MF 475K 1% 1/

30、4WR71 R72144406METAL FILM RES 187K 1% 1/4WR46 R49 R52 R53144419MF RES 150K 1% 1/4WR30 R31 R36 R40 R70159215CURRENT TRANSFORMERT1 T2178159FUSE HOLDER 5X20MM PCB MOUNTF1049371 INDICATOR058120LAMP 14V #7373DS1 DS2 DS9 DS131172132-PIN MALE CONNECTORJ6- J7-1172154-PIN CONNECTORJ4- J9-11727911-POS. MALE C

31、ONN.J3-049370 PG LIGHT058133AMBER LEDD1 D21172154-PIN CONNECTORJ10-049373 METER LAMPS058120LAMP 14V #7373DS3 DS4 DS5 DS6 DS8 DS10DS12 DS141172154-PIN CONNECTORJ2-049395 STANDBY LIGHT058148RED LED HIGH EFFICIENCYDS151172154-PIN CONNECTORJ8-2526MC602EXPLODED VIEW 1 0F 228EXPLODED VIEW 2 OF 2RefPartDes

32、criptionNo.No.1016416FRONT GLASS FAB2018631HANDLE FRONT3018633PANEL SIDE4049321KNOB ASSEMBLY MC3525104017BLK FELT WASH: 3/4 X 1/4 X 1/166100200MS 10-32 X 1/2 PH TRUSS BLK7092418DISPLAY FILTER BLUE8017798DISPLAY PLEXIGLAS9005049PANEL PLATE10101142SOCKET HEAD CAP SCREW ALLEN11101078TS 8-32 X 5/16 PHIL

33、 PAN BLK12101172TS 6-32 X 1/4 PHIL FLAT U/C13005052DUST COVER14005044SUBPANEL15146243POWER SWITCH16021159BUSHING SWITCH17005054GUSSET BRACKET LEFT18005060RIGHT GUSSET BRACKET19049373LAMP PCB ASSYAND PARTS LIST2720104137FIBRE WSHR .125ID X .312OD X.06221102001KEP NUT 4-40 CADMIUM PLATE22049371LIGHT P

34、CB ASSY23049395STANDBY LIGHT PCB ASSY24112038STL SPACER 4 X 3/8L NICKEL PLT25124073PANEL METER MC55226092400BLUE FILTER AZURE27092401BLUE FILTER PALE28017749METER LIGHT BOX29102003MACH NUT 6-32 W/LOCK30049384METER PCB31114072PLASTIC RIVET: NYLON (POP-IN)32005059METER SUPPORT BRACKET33049365OUTPUT TR

35、ANSFORMER POT34049366POWER TRANSFORMER POT35078025RUBBER GROMMET 3/436101054TS 6-32 X 1/4 PH PAN TAPTITE BLK37005048STAINLESS CHASSIS W/PEMS38018627HEATSINK COMPLETE39084180ISOSTRATE40049368HEATSINK PCB ASSY41114118TRANSISTOR CLIP 21842114119TRANSISTOR CLIP 21443112087PCB SPACER 1/4”44101059SM 6 X 5

36、/8 PHIL PAN TYPE A45005058HEATSINK COVER LEFT46005055HEATSINK COVER RIGHT47005050CAPACITOR COVER48104007LK WASHER 6 X .288 INT STAR49049367CAP PCB ASSY50100188SEMS MS 10-32 X 3/8 INDENTED5106648927000uf 100V ELECTROLYTIC52005061CAPACITOR CLAMP53100250SEMS MS 6-32 X 1/4 PHIL PAN54102045KEP NUT 6-32 S

37、PECIAL55005042REAR PANEL56101197HI/LO 4-24 X 3/8 PH ROUND BLK57104142LOCKWASHER 2.5mm INT STAR ZINC58101114SM 4-24 X 1/2 PHIL PAN TYPE A59104095LK WASH: #4 INT STAR60049222INPUT PCB ASSY61004954HEATSINK VENT COMPLETE62101176TCS 6-32 X 1/2 PH PAN BLK TYPE F63005043SUBREAR PANEL64005057FRONT SUPPORT B

38、RACKET65005041CHASSIS SUPPORT BRACKET66102006MACH NUT: 10-32 W/LOCK67070139RECTIFIER BRIDGE MC100068084135THERMAL PAD MC715069078034GROMMET70074091AC TERMINAL BLOCK71104001FLAT STEEL WASH #4 X 9/32 X .02572104004LK WASH 5 X .255 INT STAR73102022MN 4-40 X 3/1674049370PG PCB ASSY75024010FOOT PAD760493

39、69DRIVER PCB ASSY77017770PCB SHEILD78017160MOUNTING TAB W/.140 DIA MTG79102005MACH NUT: 8-32 W/LOCK80104014LK WASHER 3/8 X .507 INT STAR81088022CIRCUIT BREAKER 20AMP 250VAC82102032HEX NUT 3/8-32 X 1/16 THK-HEX83117487MC1000 AC LINE RECEPT84117740BINDING POST RED85117741BINDING POST BLACK86104162LOCK

40、WASHER INTERNAL TOOTH87102052NUT GOLD SUPPLIED W/11775888102051HEX NUT M9 X .75 GOLD PLATED891001021/4 - 20 X 3/8 PAN PH BLK ZINC90102020MCH NUT: 6-32 SLF-LOCK91018632HANDLE BACK92017797TERMINAL BLOCK COVER93005045BOTTOM COVER94018445FOOT MC100095104080FLAT WASHER #10 CLEAR ZINC96100159MS 10-32 X 3/

41、4 PH PAN BLK ZINC97126666TOP COVER DECAL98126592OUTPUT TRANSFORMER DECAL99126593POWER TRANSFORMER DECALREPACKING INSTRUCTIONS29POWER AMPLIFIERSERVICE MANUALThe continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without no

42、tice.Because of the constant upgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, the accuracy of thewithin schematic material, which is intended for information only.McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040689