McIntosh-MC206-pwr-sm 维修电路原理图.pdf

SERVICE MANUALPerformance Specifications . 2Notes . 2Rear Panel . 3Section Location . 3Block Diagram . 4Interconnection Diagram . 5 - 8Multi-channel Schematic and PCB . 9Heatsink Schematic and PCB. 10 - 12Driver Schematic and PCB . 13 - 15Capacitor Schematic and PCB . 15 - 16Meter Schematic and PCB . 17 - 21Parts List . 22 - 24Exploded Views and Parts Lists . 25 - 28Repacking Instruction . 29CONTENTSPOWER AMPLIFIERRadioFans.CN 收音机爱 好者资料库PERFORMANCE SPECIFICATIONS21. The heavy lines on the schematic denote 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. 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 - Positiveb. Diodes - Cathodec. Others - Pin 15.WARNINGParts marked with the symbol have criticalcharacteristics. Use only replacement parts recom-mended by the manufacturer.NOTESPower OutputMinimum sine wave continuous average power output perchannel, all channels operating is:200 watts into 4 ohm load120 watts into 8 ohm loadRated Power Band20Hz to 20,000HzTotal Harmonic DistortionMaximum Total Harmonic Distortion at any powerlevel from 250 milliwatts to rated power output is:0.005% for 4 or 8 ohm loadsDynamic Headroom1.6dBFrequency Response+0, -0.25dB from 20Hz to 20,000Hz+0, -3dB from 10Hz to 100,000HzSensitivity1 voltA-Weighted Signal To Noise Ratio92dB (113dB below rated output)Intermodulation DistortionMaximum Intermodulation Distortion if instan-taneous peak output per channel does not exceedtwice the rated output, for any combination offrequencies from 20Hz to 20,000Hz, with allchannels operating is:0.005% for 4 or 8 ohm loadsInput Impedance10,000 ohms Wide Band Damping Factor100 at 4 ohms200 at 8 ohmsPower Requirements100 Volts, 50/60Hz at 13.2 amps110 Volts, 50/60Hz at 12.0 amps120 Volts, 50/60Hz at 11.0 amps220 Volts, 50/60Hz at 6.0 amps230 Volts, 50/60Hz at 6.0 amps240 Volts, 50/60Hz at 6.0 ampsNote: Refer to the rear panel of the MC206 for thecorrect voltage.DimensionsFront Panel: 17-1/2 inches (44.45cm) wide, 7-1/8 inches(18.10cm) high. Depth behind front mounting panel is 18inches (45.72cm). Clearance required in front of the FrontPanel is 1 inch (2.54cm) for knobs.Weight57 pounds (25.9kg) net, 76 pounds (34.5kg) in shippingcartonRadioFans.CN 收音机爱 好者资料库3MC206REAR PANELSECTION LOCATIONSTOP VIEW WITH COVER REMOVED4BLOCK DIAGRAM56INTERCONNECTMC2068791210MULTI-CHANNEL 048551B112HEATSINK 0495523ABC1314MC206DRIVER 0495534ABC1516DRIVER 0495534ABCCAPACITOR 049551517MC206METER 0495546181920METER 0495546PARTS LISTINTERCONNECTC1.22uF CAPACITOR05200500D1BRIDGE RECTIFIER07013900F115A 250V FUSE08904200M1 M2 M3PANEL METER12406400RT1 RT2THERMISTOR05200800S1METER SWITCH14625000S2POWER SWITCH14624300T1TRANSFORMER04898000TB1TERMINAL BLOCK07409100TB2 TB3 TB4 TB5 TB6 TB7SPEAKER TERMINAL08412400049551B MULTI-CHANNEL PCBJ1-CONN D 25-PIN11750100J2- J3- J4- J16- J18- J19-CONN 4 PIN11721500J20- J21-JACK MINI11749400R9RES MF 100 1% 1/4W14419600R11 R12RES MF 1K 1% 1/4W14409000049552 HEATSINK PCBC1 C2 C10 C11CAP ELECT 47UF 35V06644600C3 C15CAP MONO .1UF 50V 20% Z5U06130500C4CAP POLYPROP 0.15UF 10% 250VDC06436300C7 C8 C12 C13CAP MONO 100PF 100V 10% NPO06130000C9 C16 C17 C18CAP MONO .01UF 50V 20% X7R06130400D1 D2 D3 D4 D5 D8 D9 D10 D11 D12DIODE SILICON07004700D6 D7 D13 D14DIODE RECTIFIER07013100J1- J2-CONN MALE 9 POS FRICTION LOCK11724400J3-CONN HEADER 2 PIN 0.15611740400J10 J11CONN MALE 2 PIN11721300Q1 Q12 Q5 Q14TRANSISTOR NPN13222300Q2 Q13TRANSISTOR PNP13222400Q3 Q18TRANSISTOR NPN POWER13226800Q4 Q17TRANSISTOR PNP POWER13226700Q6 Q16TRANSISTOR NPN13226200Q7 Q15TRANSISTOR PNP13226100Q8 Q10 Q21 Q22 Q25 Q26TRANSISTOR PNP POWER13223900Q9 Q11 Q19 Q20 Q23 Q24TRANSISTOR NPN POWER13223800R1 R8 R20 R27RES MF 221 1% 1/4W14417200R2 R9 R22 R24RES MET OX 680 5% .5W13709300R3 R10 R21 R25RES MF 15K 1% 1/4W14441200R6 R11 R19 R26RES MET OX 1.8K 5% .5W13709400R7 R23RES MET OX 430 5% .5W13709500R12 R18RES MET OX 47 5% .5W13709600R13 R28POT TRIM 200 OHM 20% HORIZ AD13439000R39RES MF 2.21 OHM 1/4W 1%14437800R40 R41 R42 R43 R44 R45RES WW DUAL .47 OHM 5% 5W13919900RT1THERMISTOR 10014427900049553 DRIVER PCBC1 C15 C32 C33CAP MONO .1UF 50V 20% Z5U06130500C22 C44CAP ELECT 100UF 25V06644700C27 C28CAP MONO 100PF 100V 10% NPO06130000C29 C30CAP ELECT 47UF 35V06644600C31 C39CAP ELECT 0.47UF 50V 20%06624400C35 C36 C37 C38 C50 C51 C200CAP ELECT 10UF 100VDC06646200C40CAP ELECT 220UF 50V 20%06625400C47 C48CAP POLYPROP .047UF 10% 250VDC06436400C55CAP MONO .01UF 50V 20% X7R06130400IC1IC DUAL OPERATIONAL AMPLIFIER13326000J1JACK PHONO GOLD PJ261G11743600J5- J6-CONN MALE 9 POS FRICTION LOCK11724400J7-CONN 8 POS MALE FRICTION LOCK11727500J8- J9- J10-CONN HEADER 2 PIN 0.15611740400J11-CONN 4 PIN11721500K1RELAY 24VDC 5A 277VAC08705700L1 L2CHOKE OUTPUT .65UH12229700LD1 LD2LDR NETWORK VTL5C914417900Q1 Q7 Q14 Q25 Q26 Q27 Q28 Q39TRANSISTOR PNP13222400Q2 Q10 Q11 Q23 Q24 Q38TRANSISTOR PNP 120V13225500Q5 Q8 Q9 Q19 Q20 Q29 Q30 Q34TRANSISTOR NPN13225400Q6 Q12 Q13 Q15 Q16 Q35 Q42 Q44TRANSISTOR NPN13222300Q17 Q21TRANSISTOR NPN13226200Q18 Q22TRANSISTOR PNP13226100Q40 Q43TRANSISTOR PNP13222400R1 R2POT GAIN CONTROL 10K OHM13448600R19 R27 R29 R84 R94 R122RES MF 47.5K 1% 1/4W14410800R20 R28 R30 R31 R37 R65 R66 R91RES MF 681K 1% 1/4W14444300R22 R34 R45 R64 R83RES MF 10K 1% 1/4W14405300R36 R97RES 511 1% 1/4W14412300R38 R89 R92 R101RES MF 1.21K 1% 1/4W14419100R41 R55 R96 R98RES MF 3.32K 1% 1/4W14409500R44 R49RES MF 1.1K 1% 1/4W14409100R46 R47 R86RES MF 4.75K 1% 1/4W14409700R48 R61 R67 R68 R123RES MF 100 1% 1/4W14419600R50 R87RES MF 14.7K 1% 1/4W14414900R51 R53 R76 R99RES MF 221 1% 1/4W14417200R52 R75 R105 R108RES MF 267K 1% 1/4W14411800R56 R60RES FP 22 OHM 1/4W 5%13703300R59RES MF 2.21 OHM 1/4W 1%14437800R62 R69 R93 R104RES MF 22.1K 1% 1/4W14418700R77 R79 R80 R82 R113 R114 R119 R120RES CF 10 5% 1/2W14116500R118 R121RES MF 5.62OHM 1% 1/4W14416800049551 CAPACITOR PCBC3CAP ELECT 22UF 100V06650600C4CAP M POLY .22UF 5% 63VDC06432900C5CAP ELECT 10UF 50V06644500D1DIODE RECTIFIER07013100IC1IC NAND SCHMIT 2-IN X 413319200J4- J16-CONN 4 PIN11721500J5-CONN MALE 7 PIN11721700J8- J9- J10- J11- J12- J13-CONN HEADER 2 PIN 0.15611740400J14 J15 J16 J17 J23BLADE FASTON 1/4 INCH11734200J22-CONN MALE 3 POS MTS100 NORMAL11721400K1RELAY 48VDC08704900Q1TRIAC OPTOCOUPLER13102400R1RES MF 1K 1% 1/4W14409000R2 R4 R10RES MF 33.2K 1% 1/4W14401500R3RES MF 1M 1/4W14426900R5RES MF 100 1% 1/4W14419600R7RES WW 1K 5W 10%13912100049554 METER PCBC7 C200 C201 C205 C206 C207 C208 C218 CAP MONO .1UF 50V 20% Z5U06130500C9 C217CAP ELECT 3300UF 35V06650900C11CAP ELECT 22UF 50V06634500C204 C215 C216 C219 C220CAP ELECT 100UF 25V06644700C209 C210 C211 C212 C213 C214CAP ELECT 2.2UF 50V06651100D14 D46DIODE RECTIFIER07013100D15 D16 D17 D18 D19 D20 D21 D22 D23 DIODE SILICON07004700D24 D25 D26 D27 D28 D29 D30 D31 D32 DIODE SILICON07004700D33 D34 D35 D36 D37 D38 D47 D48 D49 DIODE SILICON07004700D40 D41 D42 D43 D44 D45LED BAR RED05813900D50 D51 D52DIODE ZENER 16V 5% 500MW07011400D53 D54 D55DIODE SILICON07004700DS7 DS8 DS9 DS10 DS11 DS12LED AMBER05813300DS20LED RED HIGH EFFICIENCY05814800DS21 DS22 DS23 DS24 DS25 DS26 DS27 LAMP 14V05812000DS27 DS28 DS29 DS50SOCKET LAMP 0.125 PINS .110 HI17816200DS28 DS29 DS31 DS32 DS33 DS50LAMP 14V05812000F1HOLDER FUSE 5X20MM PCB MOUNT17815900IC1 IC2 IC3IC QUAD OPAMP NJM4741D13331200IC4 IC5 IC6IC QUAD ANALOG SW13311700IC20IC REGULATOR +5 VOLT13309300IC21IC REGULATOR -12V13315500IC22IC REGULATOR 12V13315600J1- J2- J3-CONN 8 POS MALE FRICTION LOCK11727500J4-CONN MALE 3 POS MTS100 NORMAL11721400J6- J8- J9- J17- J18-CONN 4 PIN11721500J10- J11-CONN 13 POS11729800J12- J13- J14-HEADER 2 PIN .10011769000J16-CONN MALE 5 PIN 0.1 POST ASSY11721600J18 J19BLADE FASTON 1/4 INCH11734200K1RELAY 24VDC 5A 277VAC08705700Q8 Q10 Q11 Q12 Q13 Q14 Q15 Q22TRANSISTOR NPN13222300Q25 Q35 Q57 Q58 Q59 Q60 Q61 Q62TRANSISTOR PNP13222400Q32 Q33TRANSISTOR POWER N-CHN ENHANCE13224200Q34 Q36 Q37 Q38 Q39 Q40 Q41 Q50TRANSISTOR NPN13222300Q51 Q52 Q53 Q54 Q55 Q56TRANSISTOR NPN13222300R2 R3 R4 R5 R6 R7RES MF 681 1% 1/4W14419500R30RES MF 681K 1% 1/4W14444300R98 R148 R166 R169 R172 R174 R181RES MF 150K 1% 1/4W14441900R100 R101 R138 R149 R162 R163RES MF 20.0 1/4W14417400R102 R106 R110 R114 R129 R144 R202RES MF 100K 1% 1/4W14411300R103 R151 R164 R167 R170 R176RES MF 5.62K OHM 1% 1/4W14444700R104 R119 R132 R133 R135 R136RES MF 15K 1% 1/4W14441200R105 R127 R137RES MF 4.75M 1/4W 1%14437900R107 R108 R109 R118 R120 R122 R141RES MF 3.32K 1% 1/4W14409500R111 R116 R134 R145 R160 R161 R192RES MF 178K 1% 1/4W14442000R112 R117 R121 R124 R131 R140 R171RES MF 10K 1% 1/4W14405300R115 R126 R128 R177 R178RES 26.7K 1% 1/4W14410500R123 R146 R156 R195RES MF 221 1% 1/4W14417200R125 R130 R139RES MF 90.9K 1% 1/4W14417000R142 R143 R194RES MF 3.32K 1% 1/4W14409500R175 R199RES MF 10K 1% 1/4W14405300R180RES MF 18.2K 1% 1/4W14418100R185 R186 R187POT TRIMMER 5K OHM 20%13438700R188 R193RES MF 3.16K 1% 1/4W14419900R189RES MF 7.5K 1% 1/4W14421000R190RES MF 47.5K 1% 1/4W14410800R191 R197RES MF 12.1K 1% 1/4W14415400R196 R200 R201 R203 R204 R205 R206RES MF 178K 1% 1/4W14442000R198RES MF 5.11K 1% 1/4W14408300R207 R208RES MF 178K 1% 1/4W14442000Reference No.DescriptionPart No.212223242526MC206 EXPLODED VIEWMC2062728MC206 EXPLODED VIEW PARTS LIST1016446GLASS2049319KNOB ASSY3104017WASHER FILT BLK 3/4 X1/4 X 1/164004801BRACKET EXTRUSION5018612END CAP 7”6101042SCREW TS 4-40 X 1/2 SLOT FILLISTER7094360TAPE FOAM 1/2 X 1/28018588EXTRUSION BOTTOM9101172SCREW TC 6-32 X 1/4 PH FL U/C10018587EXTRUSION TOP11094016TAPE FOAM 1/4 X 1/812017855PLEXIGLAS13092413ACETATE FILTER BLUE14005001SUB PANEL15021159BUSHING SWITCH16146243POWER SWITCH (W/LOCKWASHER)17146250METER SWITCH (W/LOCKWASHER)18101054SCREW TAPTITE 6-32 X 1/4 PH PAN19094017TAPE FOAM 1/4 X 1/420049554METER PCB ASSY21112086SPACER NYLON22077031SLEEVING FIBERGLAS #223102001NUT KEP 4-40 CADMIUM PLATE24112051SPACER 1/8” NYLON25124080METER26092341FILTER AZURE BLUE27092342FILTER PALE BLUE28017447LIGHT BOX PLASTIC29114072RIVET NYLON POP-IN30004798TOP COVER31101078SCREW TAP 8-32 X 5/16 PH PAN BLK32021094SPACER #4 X 1/433004791TRAY34101163SCREW TC 8-32 X 1/4 PH PN TYPE F35106007SPRING CLIP LATCH TYPE36084135PAD THERMAL37104005WASHER FLAT STEEL 6 X 3/8 X .03238102045NUT KEP 6-32 SPECIAL39070139DIODE BRIDGE RECTIFIER40074091TERMINAL BLOCK AC41102022NUT MACH 4-40 X 3/16 X 1/1642104004WASHER LOCK 5 X .255 INT STAR43104001WASHER FLAT STEEL 4 X 9/32 X .02544003855CLAMP CAPACITOR45100118SCREW MACH 6-32 X 1/2 PH PN46066480CAP ELECT47049551CAPACITOR PCB ASSY48100188SCREW MACH SEMS 10-32 X 3/849048980TRANSFORMER ASSY50098113DIAL CORD51018671HEATSINK52084183ISOSTRATE53112087SPACER PCB 1/4”54101202SCREW SM 6-20 X 3/4 PH PN TYPE B55101059SCREW 6 X 5/8 PH PN TYPE A56114119CLIP TRANSISTOR 21457114118CLIP TRANSISTOR 21858049552HEATSINK PCB ASSY59049553DRIVER PCB ASSY60022185SPACER #6 X 1/261112088SUPPORT CIRCUIT BOARD62005156REAR PANEL63078122HOLDER FUSE SOCKET UL/CSA64112032SPACER BLACK NYLON65104016WASHER INT STAR .5 X .630 X .02266117487RECEPTACLE AC LINE67084124POST DUAL BINDING68004800PLATE OUTPUT69104130WASHER LOCK #10 SPLT PHOS/BRNZ70104148WASHER PLAT BRASS71110009NUT M5 X 0.8 BRASS W/GOLD PLATE72102020NUT MACH 6-32 SELF-LOCK73112015STANDOFF74104142WASHER LOCK 2.5mm INT STAR ZINC75101114SCREW SM 4-24 X 1/2 PH PN TYPE A76100271SCREW MACH SEMS 6-32 X 1/4 PH PN77101176SCREW TC 6-32 X PH PN TYPE F78100120SCREW MACH 10-32 X 1/4 PH PN ZINC79104067WASHER LOCK #10 INT STAR80005175CHASSIS81017218FOOT PLASTIC BLACK82104080WASHER FLAT #10 CLEAR ZINC83100159SCREW 10-32 X 3/4 PH PN BLK84101109SCREW TAP 6-32 X 5/16 PH PN BLKRefNo.DescriptionPartNo.29MC206REPACKING INSTRUCTIONThe continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constantupgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended forinformation only.McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040818POWER AMPLIFIERSERVICE MANUAL