McIntosh-MC602-pwr-sm维修电路原理图.pdf

SERVICE MANUAL POWER AMPLIFIER Performance Specifications . 2 Notes . 2 Rear Panel. 3 Section Location . 4 Block Diagram . 5 - 6 Interconnection Diagram . 7 - 8 Heatsink Schematic and PCB . 9 - 10 Driver Schematic and PCB . 11 - 13 Input Schematic and PCB. 14 Capacitor Schematic and PCB . 15 Meter Schematic and PCB. 17 - 19 Indicator Schematic and PCB. 20 PG Light Schematic and PCB . 21 - 22 Meter Lamps Schematic and PCB . 21 - 22 Standby Light Schematic and PCB . 21 - 22 Parts List. 23 - 24 Exploded View and Parts List. 25 - 28 Repacking Instructions . 29 CONTENTS RadioFans.CN 收音机爱 好者资料库 PERFORMANCE SPECIFICATIONS 2 NOTES POWER OUTPUT STEREO 600 watts into 2, 4 or 8 ohm loads is the minimum sine wave continuous average power output per channel with both channels operating. OUTPUT LOAD IMPEDANCE 2, 4 or 8 ohms RATED POWER BAND 20Hz to 20,000Hz DYNAMIC HEADROOM 2.1dB FREQUENCY RESPONSE +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz TOTAL HARMONIC DISTORTION 0.005% maximum at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz, all channels operating. INTERMODULATION DISTORTION 0.005% maximum if instantaneous peak output per chan- nel does not exceed twice the rated output with all chan- nels operating for any combination of frequencies from 20Hz to 20,000Hz. SIGNAL TO NOISE RATIO (A WEIGHTED) 93dB Unbalanced (120dB below rated output) 97dB Balanced (124dB below rated output) SENSITIVITY 2.45 Volts Unbalanced Input 4.9 Volts Balanced Input INPUT IMPEDANCE 10,000 ohms Unbalanced and Balanced WIDE BAND DAMPING FACTOR 100 8 ohms POWER REQUIREMENTS 100 Volts, 50/60Hz at 18 amps 110 Volts, 50/60Hz at 16.5 amps 120 Volts, 50/60Hz at 15 amps 220 Volts, 50/60Hz at 8.2 amps 230 Volts, 50/60Hz at 7.8 amps 240 Volts, 50/60Hz at 7.5 amps NOTE: Refer to the rear panel of the MC602 for the correct voltage. DIMENSIONS Front 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 is 1-3/4 inches (4.5cm). WEIGHT 155lbs. (70.3kg) Net 180lbs. (81.6kg) Shipped 1. The heavy notes on the schematic denote the primary signal path. 2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A high impedance (10 megaohm) voltmeter must be used. 3. Unless otherwise specified: 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 - Positive b. Diodes - Cathode c. Others - Pin 1 5.WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recom- mended by the manufacturer. RadioFans.CN 收音机爱 好者资料库 REAR PANEL 3 MC602 RadioFans.CN 收音机爱 好者资料库 4 SECTION LOCATIONS RadioFans.CN 收音机爱 好者资料库 56 MC602 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 78 INTERCONNECT RadioFans.CN 收音机爱 好者资料库 HEATSINK 049368 910 2A 2B2D2C MC602 RadioFans.CN 收音机爱 好者资料库 DRIVER 049369 1112 3 RadioFans.CN 收音机爱 好者资料库 DRIVER 049369 1314 3INPUT 0492224 MC602 RadioFans.CN 收音机爱 好者资料库 CAPACITOR 0493675 1516 NOTES RadioFans.CN 收音机爱 好者资料库 METER 049384 1718 6 MC602 RadioFans.CN 收音机爱 好者资料库 METER 0493846 1920 INDICATOR 049371 7 RadioFans.CN 收音机爱 好者资料库 PG LIGHT 049370 2122 8 MC602 METER LAMPS 0493739 STANDBY LIGHT 04939510 RadioFans.CN 收音机爱 好者资料库 PARTS LIST 23 Part No.DescriptionReference No. 049368 HEATSINK 061300MONO CAP 100PF 100V 5% NPO T&RC7 C8 061304MONO CAP .01UF 50V 5% X 7R T&RC9 C16 061305MONO CAP .1UF 50V 5% Z50 T&RC3 C5 064363CAP POLYPROP 0.15MF 10% 250VDCC10 066446CAP ELECT 47MF 35VC1 C2 070047SILICON DIODE 1N4148 T&RD1 D2 D3 D4 D5 070133DIODE 200V,6AD6 D7 1172132-PIN MALE CONNECTORJ4- 117217MALE CONN 7 PINJ1- 117404HEADER 2-PIN 0.156J2- 117708FASTON BLADE W/FEETJ4 117712FASTON BLADE .110J5 132171TRANSISTOR NPNQ1 132172TRANSISTOR SI PNP MPSA55Q2 132285TRANSISTOR NPN 25C3334CQ6 132286TRANSISTOR PNP 2SA32ICQ7 134390TRIM POT 200 OHM 20% HORIZ ADR13 137093MET OX 680 5% .5WR2 R9 137094MET OX 1.8K 5% .5WR6 R11 137095MET OX 430 5% .5WR7 137096MET OX 47 5% .5WR12 139177WIREWOUND RES 0.5 OHM 5W 5%R31 R32 R33 R34 R35 R36 R37 R38 R40 R41 R42 R43 144071RES MF 365 1% 1/4WR1 R8 144187RES MF 22.1K 1% 1/4WR3 R10 144243RES WW 0.1 5% 1WR39 144249THERMAL SENSORRT1 144378RES MF 2.21 OHM 1/4W 1%R30 049369 DRIVER 061002DISC CAP 1.8PF+/-.25PF NPOC42 C43 061199DISC CAP 100PF 10% N1500 50VC2 C3 C4 C5 C6 C7 C8 C9 061248DISC CAP .1MF,25V,Y5TC1 C10 061256M.CAP 470PF,5%,100VC26 C27 C28 C29 064308CAP MPOLY .0047UF 5% 63-250VDCC34 C35 C36 C37 064316CAP M POLY .022UF 5% 63VDCC38 C39 064363CAP POLYPROP 0.15MF 10% 250VDCC30 C31 C32 C33 064364CAP POLYPROP .047MF 10% 250VC22 C23 C24 C25 066244CAP ELECT 0.47UF 50V 20%C20 C21 066327CAP ELECT 470UF 10VC40 C41 066446CAP ELECT 47MF 35VC15 C18 066462CAP ELECT 1OUF 100VDCC11 C12 C13 C14 C16 C17 C19 1172154-PIN CONNECTORJ8 J9 117217MALE CONN 7 PINJ1- J2- J3- J4- 117219MALE CONN 10 POSJ7- 11727911-POS. MALE CONN.J6- 132222N. CHANNEL FETQ2 Q3 Q5 Q6 Q7 Q8 Q10 Q11 132223TRANSISTOR NPN MPS4124 2K/REELQ12 Q13 Q17 Q19 Q24 Q25 Q29 Q31 Q36 Q67 Q70 Q78 Q80 132224TRANSISTOR PNPQ1 Q16 Q20 Q22 Q23 Q28 Q32 Q34 Q35 Q37 Q38 Q39 Q59 Q66 132254TRANSISTOR NPNQ14 Q18 Q26 Q30 Q60 Q63 Q64 Q71 Q74 Q75 Q76 Q77 132255TRANSISTOR PNPQ15 Q21 Q27 Q33 Q61 Q62 Q65 Q68 Q69 Q72 Q73 Q79 132285TRANSISTOR NPN 25C3334CQ55 Q56 Q57 Q58 132286TRANSISTOR PNP 2SA32ICQ40 Q41 Q42 Q43 133260DUAL OPERATIONAL AMPLIFIERIC1 137042FLAMEPROOF RES 47 OHM 5% 1/4WR3 R27 R74 R80 139005WIRE RES 2 OHMS 10% 5WR110 R112 R114 R116 139119WIRE RES 4 OHMS 5% 5WR109 R111 R113 R115 144015RES MF 33.2K 1% 1/4WR104 R106 R107 R108 144028RES MF 866 1% 1/4WR2 R4 R30 R57 R64 R65 R83 R91 144071RES MF 365 1% 1/4WR17 R18 R19 R20 R21 R22 R23 R29 R42 R43 R44 R45 R46 R47 R48 R67 144090RES MF 1K 1% 1/4WR60 R86 144095RES MF 3.32K 1% 1/4WR53 R69 R72 R75 R92 R95 R97 R98 144097RES MF 4.75K 1% 1/4WR58 R84 144108RES MF 47.5K 1% 1/4WR61 R63 R87 R90 144113RES MF 100K 1% 1/4WR76 R77 R78 R79 144128RES MF 1.5K 1% 1/4WR10 R12 R35 R37 144172RES MF 221 1% 1/4WR6 R24 R31 R49 R150 R151 R152 R153 144179LDR NETWORK VTL5C9LDR1 LDR2 144187RES MF 22.1K 1% 1/4WR7 R32 R101 144196RES MF 100 1% 1/4WR5 R62 R89 R100 144265RES MF 2.21M 1/4WR9 R15 R34 R40 144298RES MF 2.21K 1% 1/4WR103 R105 144338RES MF 324 OHM 1% 1/4WR16 R41 R66 R71 R73 R88 R93 R99 144352RES MF 174K 1% 1/4WR14 R39 R59 R85 144364RES MF 475K 1% 1/4WR8 R33 R55 R81 144398METAL FILM RES 3.79K .5% 1/4WR11 R25 R38 R50 144401RES MF 6.49K .5% 1/4WR13 R26 R36 R51 144443METAL FILM RES 681K 1% 1/4WR68 R70 R94 R96 049222 INPUT 061191DISC CAP 22PF,10%,NPO 50VC11 C12 061196DISC CAP 47PF,20%,N470 50VC7 C8 061248DISC CAP .1MF,25V,Y5TC9 C10 066445ELECT CAP 10MF, 50V AMMO PACKC1 C2 C4 C6 117219MALE CONN 10 POSJ7- 117436PJ261G PHON JACK, GOLDJ2- 117494MINI JACKJ11- J12- 117685XLR RECEPTACLE FEMALEJ3 J4 133260DUAL OPERATIONAL AMPLIFIERIC1 141025RES CF 100 5% 1/4WR130 144053RES MF 10K 1% 1/4WR131 R133 R135 R138 R140 R142 144352RES MF 174K 1% 1/4WR132 R136 R137 R139 148059SLIDE SWITCHS1 049367 CAPACITOR 117404HEADER 2-PIN 0.156J1 J2 J3 J4 117708FASTON BLADE W/FEETJ5 J6 J7 J8 J9 J10 J11 J12 049384 METER 061305MONO CAP .1UF 50V 5% Z50 T&RC14 C21 C22 C25 C26 064329CAP M POLY .22UF 5% 63VDCC15 C16 C28 064337CAP M POLY 1MF 5% 63VDCC11 C12 066289CAP ELECT 4.7UF 10% 35VC27 066309CAP ELECT 1000UF 10VC1 C2 066361CAP ELECT 1000UF 20% 35VC30 C31 066506CAP ELECT 22UF 100VC29 070047SILICON DIODE 1N4148 T&RD1 D2 D3 D4 D5 D6 D7 D9 D10 D13 D14 D15 D16 D17 D18 D19 D21 D22 D23 D24 D25 D28 070085ZENER DIODE 6.2V 5% 500MWD27 070114ZENER DIODE 16V 5% 500MWD26 D29 070131DIODE RECTIFIERD30 D31 D32 080014HEATSINK T0220ATTACH TO Q10 Q11 Q12 087049RELAY 48VDC VFB48HU ITT TAKAMIK1 089089FUSE 2A SLO-BLO 5X20F1 117214MALE CONN 3-POS MTS100 NORMAL J8- 1172154-PIN CONNECTORJ10- 117217MALE CONN 7 PINJ9- 24 11727911-POS. MALE CONNJ1- J2- 117708FASTON BLADE W/FEETJ12 J15 J16 131021TRIAC 8A 200VQ12 131022600V TRIAC DRIVER OPTOCOUPLERQ23 132223TRANSISTOR NPN MPS4124 2K/REELQ1 Q2 Q13 Q14 Q15 Q16 Q17 Q20 132224TRANSISTOR PNPQ18 Q22 132226TRANSISTOR P.CHANNEL JUNC.FETQ19 132242TRANSISTOR POWER N-CHNQ10 Q11 132254TRANSISTOR NPNQ8 Q9 Q24 Q25 133093IC REGULATOR +5 VOLTQ21 133155IC REGULATOR -12VIC7 133156IC REGULATOR 12VIC6 133189IC OPERATIONAL AMPLIFIERIC2 IC4 133192IC NAND SCHMIT 2-IN X 4IC5 133260DUAL OPERATIONAL AMPLIFIERIC3 134383TRIM POT 100K OHM 20%R1 R2 139079WIRE RES 1.5K 10% 5WR68 1392182.7 OHM 2W 5% WW RESISTOR FPR69 141023RES CF 8.2 5% 1/4WR35 R39 144015RES MF 33.2K 1% 1/4WR6 R17 (R61 & R62 ARE FOR CONVERSION) 144083RES MF 5.11K 1% 1/4WR47 144091RES MF 1.1K 1% 1/4WR60 144095RES MF 3.32K 1% 1/4WR50 144097RES MF 4.75K 1% 1/4WR4 R42 144108RES MF 47.5K 1% 1/4WR44 144117RES MF 200K 1% 1/4WR7 R11 R23 R37 144154RES MF 12.1K 1% 1/4WR45 R51 R66 144181RES MF 18.2K 1% 1/4WR9 R33 144187RES MF 22.1K 1% 1/4WR5 R14 R55 R57 144195RES MF 681 1% 1/4WR58 R67 144196RES MF 100 1% 1/4WR10 R34 R56 144199RES MF 3.16K 1% 1/4WR43 R48 144210RES MF 7.5K 1% 1/4WR65 144264RES MF 10M 1% 1/4WR8 R32 144269RES MF 1M 1/4WR54 R59 144271RES MF 2.74M 1/4WR12 R41 R64 144296RES MF 1.82K 1% 1/4WR63 144364RES MF 475K 1% 1/4WR71 R72 144406METAL FILM RES 187K 1% 1/4WR46 R49 R52 R53 144419MF RES 150K 1% 1/4WR30 R31 R36 R40 R70 159215CURRENT TRANSFORMERT1 T2 178159FUSE HOLDER 5X20MM PCB MOUNTF1 049371 INDICATOR 058120LAMP 14V #7373DS1 DS2 DS9 DS13 1172132-PIN MALE CONNECTORJ6- J7- 1172154-PIN CONNECTORJ4- J9- 11727911-POS. MALE CONN.J3- 049370 PG LIGHT 058133AMBER LEDD1 D2 1172154-PIN CONNECTORJ10- 049373 METER LAMPS 058120LAMP 14V #7373DS3 DS4 DS5 DS6 DS8 DS10 DS12 DS14 1172154-PIN CONNECTORJ2- 049395 STANDBY LIGHT 058148RED LED HIGH EFFICIENCYDS15 1172154-PIN CONNECTORJ8- RadioFans.CN 收音机爱 好者资料库 2526 MC602 EXPLODED VIEW 1 0F 2 RadioFans.CN 收音机爱 好者资料库 28 EXPLODED VIEW 2 OF 2 RefPartDescription No.No. 1016416FRONT GLASS FAB 2018631HANDLE FRONT 3018633PANEL SIDE 4049321KNOB ASSEMBLY MC352 5104017BLK FELT WASH: 3/4 X 1/4 X 1/16 6100200MS 10-32 X 1/2 PH TRUSS BLK 7092418DISPLAY FILTER BLUE 8017798DISPLAY PLEXIGLAS 9005049PANEL PLATE 10101142SOCKET HEAD CAP SCREW ALLEN 11101078TS 8-32 X 5/16 PHIL PAN BLK 12101172TS 6-32 X 1/4 PHIL FLAT U/C 13005052DUST COVER 14005044SUBPANEL 15146243POWER SWITCH 16021159BUSHING SWITCH 17005054GUSSET BRACKET LEFT 18005060RIGHT GUSSET BRACKET 19049373LAMP PCB ASSY AND PARTS LIST 27 20104137FIBRE WSHR .125ID X .312OD X.062 21102001KEP NUT 4-40 CADMIUM PLATE 22049371LIGHT PCB ASSY 23049395STANDBY LIGHT PCB ASSY 24112038STL SPACER 4 X 3/8L NICKEL PLT 25124073PANEL METER MC552 26092400BLUE FILTER AZURE 27092401BLUE FILTER PALE 28017749METER LIGHT BOX 29102003MACH NUT 6-32 W/LOCK 30049384METER PCB 31114072PLASTIC RIVET: NYLON (POP-IN) 32005059METER SUPPORT BRACKET 33049365OUTPUT TRANSFORMER POT 34049366POWER TRANSFORMER POT 35078025RUBBER GROMMET 3/4 36101054TS 6-32 X 1/4 PH PAN TAPTITE BLK 37005048STAINLESS CHASSIS W/PEMS 38018627HEATSINK COMPLETE 39084180ISOSTRATE 40049368HEATSINK PCB ASSY 41114118TRANSISTOR CLIP 218 42114119TRANSISTOR CLIP 214 43112087PCB SPACER 1/4” 44101059SM 6 X 5/8 PHIL PAN TYPE A 45005058HEATSINK COVER LEFT 46005055HEATSINK COVER RIGHT 47005050CAPACITOR COVER 48104007LK WASHER 6 X .288 INT STAR 49049367CAP PCB ASSY 50100188SEMS MS 10-32 X 3/8 INDENTED 5106648927000uf 100V ELECTROLYTIC 52005061CAPACITOR CLAMP 53100250SEMS MS 6-32 X 1/4 PHIL PAN 54102045KEP NUT 6-32 SPECIAL 55005042REAR PANEL 56101197HI/LO 4-24 X 3/8 PH ROUND BLK 57104142LOCKWASHER 2.5mm INT STAR ZINC 58101114SM 4-24 X 1/2 PHIL PAN TYPE A 59104095LK WASH: #4 INT STAR 60049222INPUT PCB ASSY 61004954HEATSINK VENT COMPLETE 62101176TCS 6-32 X 1/2 PH PAN BLK TYPE F 63005043SUBREAR PANEL 64005057FRONT SUPPORT BRACKET 65005041CHASSIS SUPPORT BRACKET 66102006MACH NUT: 10-32 W/LOCK 67070139RECTIFIER BRIDGE MC1000 68084135THERMAL PAD MC7150 69078034GROMMET 70074091AC TERMINAL BLOCK 71104001FLAT STEEL WASH #4 X 9/32 X .025 72104004LK WASH 5 X .255 INT STAR 73102022MN 4-40 X 3/16 74049370PG PCB ASSY 75024010FOOT PAD 76049369DRIVER PCB ASSY 77017770PCB SHEILD 78017160MOUNTING TAB W/.140 DIA MTG 79102005MACH NUT: 8-32 W/LOCK 80104014LK WASHER 3/8 X .507 INT STAR 81088022CIRCUIT BREAKER 20AMP 250VAC 82102032HEX NUT 3/8-32 X 1/16 THK-HEX 83117487MC1000 AC LINE RECEPT 84117740BINDING POST RED 85117741BINDING POST BLACK 86104162LOCKWASHER INTERNAL TOOTH 87102052NUT GOLD SUPPLIED W/117758 88102051HEX NUT M9 X .75 GOLD PLATED 891001021/4 - 20 X 3/8 PAN PH BLK ZINC 90102020MCH NUT: 6-32 SLF-LOCK 91018632HANDLE BACK 92017797TERMINAL BLOCK COVER 93005045BOTTOM COVER 94018445FOOT MC1000 95104080FLAT WASHER #10 CLEAR ZINC 96100159MS 10-32 X 3/4 PH PAN BLK ZINC 97126666TOP COVER DECAL 98126592OUTPUT TRANSFORMER DECAL 99126593POWER TRANSFORMER DECAL RadioFans.CN 收音机爱 好者资料库 REPACKING INSTRUCTIONS 29 RadioFans.CN 收音机爱 好者资料库 POWER AMPLIFIER SERVICE MANUAL The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within 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 RadioFans.CN 收音机爱 好者资料库