McIntosh-MC501-pwr-sm 维修电路原理图.pdf

SERVICE MANUALPerformance Specifications . 2Notes . 2Top and Rear Views . 3Section Location . 4Block Diagram . 5 - 6Interconnection Diagram . 7 - 8Driver/Heatsink Schematic and PCB . 9 - 13Power Schematic and PCB . 15 - 16Input Schematic and PCB. 17 - 18Meter/Lighting Schematic and PCB. 19 - 20Parts List . 21 - 24Exploded View and Parts List . 25 - 28Repacking Instructions . 29CONTENTSPOWER AMPLIFIERRadioFans.CN 收音机爱 好者资料库PERFORMANCE SPECIFICATIONSPower Output StereoMinimum sine wave continuous average power output is:500 watts into 2 ohm load500 watts into 4 ohm load500 watts into 8 ohm loadOutput Load Impedance2, 4 or 8 ohmsRated Power Band20Hz to 20,000HzTotal Harmonic DistortionMaximum Total Harmonic Distortion at any power levelfrom 250 milliwatts to rated power output is 0.005%Intermodulation DistortionMaximum Intermodulation Distortion if instantaneous peakoutput per channel does not exceed twice the rated output,for any combination of frequencies from 20Hz to 20,000Hz,with all channels operating is 0.005%Dynamic Headroom1.8dBFrequency Response+0, -0.25dB from 20Hz to 20,000Hz+0, -3dB from 10Hz to 100,000HzSensitivity2.1 Volts Unbalanced Input4.2 Volts Balanced InputA-Weighted Signal To Noise Ratio97dB (124dB below rated output)Input Impedance10,000 ohms Unbalanced Inputs20,000 ohms Balanced InputsWide Band Damping Factor100 (8 ohm wideband)Power Requirements100 Volts, 50/60Hz at 8 amps110 Volts, 50/60Hz at 7.2 amps120 Volts, 50/60Hz at 6.6 amps220 Volts, 50/60Hz at 3.3 amps230 Volts, 50/60Hz at 3.3 amps240 Volts, 50/60Hz at 3.3 ampsNote: Refer to the rear panel of the MC501 for thecorrect voltage.Overall Dimensions17-1/2 inches (44.45cm) W, 9-7/16 inches (23.97cm) H,14-3/4 inches (37.5cm) D, including clearance for con-nectorsWeight91.5 pounds (41.6kg) net, 105.5 pounds (48kg) inshipping carton21. The heavy notes 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. Ahigh 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.NOTESRadioFans.CN 收音机爱 好者资料库3MC501TOP and REAR PANELTOP VIEWREAR VIEW4SECTION LOCATIONSTOP VIEW WITH COVER REMOVEDBOTTOM VIEW WITH COVER REMOVED56BLOCK DIAGRAMMC50178INTERCONNECT1DRIVER/HEATSINK 0498282AMC5019102BDRIVER SECTION1112DRIVER/HEATSINK 0498282A 2BHEATSINK SECTION1314MC501DRIVER/HEATSINK 0498282A 2BNOTES1516POWER 04983131718INPUT 0498294MC5011920METER/LIGHTING 04983052122MC501PARTS LISTRef. No.DescriptionPart No.12B2A3INTERCONNECTBP1BINDING POST, RED117740BP2BINDING POST, BLK117741BP3BINDING POST, RED117740BP4BINDING POST, BLK117741BP5BINDING POST, RED117740BP6BINDING POST, BLK117741DIDIODE, BRIDGE RECTIFIER070139F1FUSE089105J1RECEPTACLE, AC LINE117487MT1METER124086RT1THERMISTER ASSY052008RT2THERMISTER ASSY052008S1SWITCH146243S2SWITCH146243T1TRANSFORMER, POWER049846T2TRANSFORMER, OUTPUT049847TB1TERMINAL BLOCK AC074091DRIVER/HEATSINK PCB 049828C1CAP MONO 470PF 100V 10PO061302C2CAP MONO .1uF 50V 20% Z5U061305C3CAP MONO .1uF 50V 20% Z5U061305C4CAP ELECT 47UF 35V066446C5CAP ELECT 10UF 100VDC066462C6CAP ELECT 10UF 100VDC066462C7CAP MONO .1uF 50V 20% Z5U061305C8CAP MONO .1uF 50V 20% Z5U061305C9CAP MONO 220PF 100V 10PO061301C10CAP MONO 100PF 100V 10% NPO061300C11CAP MONO 100PF 100V 10% NPO061300C12CAP ELECT 220UF 25V066507C13CAP MPF 0.0047UF 5VDC064308C14CAP POLYPROP 0.15UF 10VDC064363C15CAP POLYPROP .047UF 10VDC064364C16CAP ELECT 10UF 100VDC066462C17CAP ELECT 10UF 100VDC066462C18CAP MONO .01UF 50V 20% X7R061304C19CAP ELECT 47UF 35V066446C20CAP ELECT 47UF 35V066446C21CAP MONO .01UF 50V 20% X7R061304C22CAP MONO .1uF 50V 20% Z5U061305C23CAP MONO 100PF 100V 10PO061300C24CAP MONO 100PF 100V 10% NPO061300C25CAP MONO .1uF 50V 20% Z5U061305C26CAP MPF 0.47UF 5/100VDC064442C27CAP MPF 0.47UF 5/100VDC064442D1DIODE SILICON070047D2DIODE SILICON070047D3DIODE SILICON070047D4DIODE SILICON070047D5DIODE SILICON070047D6DIODE 200V 3A070126D7DIODE 200V 3A070126J1CONN MALE 9 POS FRICTION LOCK117244J2CONN MALE 9 POS FRICTION LOCK117244J3CONN HEADER 2 PIN 0.156117404J4BLADE FASTON W/FEET117708J5CONN 4 PIN117215J6BLADE FASTON .110117712J7BLADE FASTON W/FEET117708J8CONN 2 PIN MALE117213LD1LDR NETWORK VTL5C9144179Q1TRANSISTOR PNP132224Q2TRANSISTOR NPN132223Q3TRANSISTOR NPN132223Q4TRANSISTOR N JFET132222Q5TRANSISTOR N JFET132222Q6TRANSISTOR N JFET132222Q7TRANSISTOR NPN POWER132255Q8TRANSISTOR SI NPN 25V132254Q9TRANSISTOR NPN POWER132255Q10TRANSISTOR PNP132224Q11TRANSISTOR NPN POWER132255Q12TRANSISTOR SI NPN 25V132254Q13TRANSISTOR NPN132223Q14TRANSISTOR SI NPN 25V132254Q15TRANSISTOR NPN132223Q16TRANSISTOR PNP132224Q17TRANSISTOR NPN 25C3334C132285Q18TRANSISTOR PNP 2SA32IC132286Q19TRANSISTOR NPN SILICON132171Q20TRANSISTOR PNP SILICON132172Q21TRANSISTOR NPN132223Q22TRANSISTOR NPN 25C3334C132285Q23TRANSISTOR PNP 2SA32IC132286Q24TRANSISTOR NPN132268Q25TRANSISTOR PNP132267Q26TRANSISTOR NPN POWER 2SC5200132291Q27TRANSISTOR PNP POWER 2SA1943132292Q28TRANSISTOR NPN POWER 2SC5200132291Q29TRANSISTOR PNP POWER 2SA1943132292Q30TRANSISTOR NPN POWER 2SC5200132291Q31TRANSISTOR PNP POWER 2SA1943132292Q32TRANSISTOR NPN POWER 2SC5200132291Q33TRANSISTOR PNP POWER 2SA1943132292Q34TRANSISTOR NPN POWER 2SC5200132291Q35TRANSISTOR PNP POWER 2SA1943132292R1RES MF 10 OHM 1% 1/4W144157R2RES MF 10 OHM 1/4W144157R3RES MF 4.75K 1% 1/4W144097R4RES MF 100 OHM 1% 1/4W144196R5RES MF 475 OHM 1% 1/4W144086R6RES MF 22.1K 1% 1/4W144187R7RES MF 10M 1% 1/4W144264R8RES MF 267K 1% 1/4W144118R9RES MF 2.21K 1% 1/4W144298R10RES MF 221 OHM 1% 1/4W144172R11RES MF 267K 1% 1/4W144118R12RES MF 47.5K 1% 1/4W144108R13RES MF 47.5K 1/4W144108R14RES MF 3.32K 1% 1/4W144095R15RES MF 221 OHM 1% 1/4W144172R16RES MF 1K 1% 1/4W144090R17RES MF 221 OHM 1% 1/4W144172R18RES MF 3.32K 1/4W144095R19RES MF 221 OHM 1% 1/4W144172R20RES MF 1K 1% 1/4W144090R21RES MF 221 OHM 1% 1/4W144172R22RES MF 267 OHM 1/4W144173R23RES MF 267K 1% 1/4W144118R24RES MF 187K 1% 1/4W144406R25RES MF 324 OHM 1% 1/4W144338R26RES MF 324 OHM 1% 1/4W144338R27RES MF 3.79k .1144398R28RES MF 6.49K .5/4W144401R29RES MF 221 OHM 1/4W144172R30RES WW 2 OHM 10% 5W139005R31RES WW 4 OHM 5W139119R32RES FP 22 OHM 1/4W 5137033R33RES FP 22 OHM 1/4W 5137033R34RES MF 324 OHM 1/4W144338R35RES MF 324 OHM 1/4W144338R36RES WW 0.1 OHM 5W144243R37RES MF 22.1K 1/4W144187R39RES MF 22.1K 1/4W144187R40RES MET OX 680 OHM 5% .5W137093R41RES MET OX 680 OHM 5% .5W137093R42RES MF 1.82K 1% 1/4W144296R43RES MET OX 430 OHM 5% .5W137095R44POT TRIM 200 OHM 20% HORIZ AD134390R45RES MF 1.82K 1% 1/4W144296R46RES MET OX 47 OHM 5% .5W137096R47RES WW DUAL .47 OHM 5% 5W139199R48RES WW DUAL .47 OHM 5% 5W139199R49RES WW DUAL .47 OHM 5% 5W139199R50RES WW DUAL .47 OHM 5% 5W139199R51RES WW DUAL .47 OHM 5W139199R52RES MF 1K 1% 1/4W144090R53RES MF 1K 1% 1/4W144090R54RES WW DUAL .47 OHM 5W139199RT1SENSOR THERMAL144249U1IC OPAMP NE4558N133028POWER PCB 049831C1CAP POLYPROP .047UF 10% 250VDC064364C2CAP ELECT 10UF 50V066445C327000uF 100V Electrolytic066489C427000uF 100V Electrolytic066489C5CAP ELECT 22UF 100V066506C6CAP ELECT 3300UF 35V066509C7CAP ELECT 3300UF 35V066509C8CAP ELECT 4.7UF 50V066512C9CAP ELECT 10UF 100VDC066462D1DIODE RECTIFIER070131D2DIODE RECTIFIER070131D3DIODE RECTIFIER070131D4DIODE RECTIFIER0701312324PARTS LIST cont5D5DIODE RECTIFIER070131D6DIODE RECTIFIER070131D7DIODE SILICON070047HS1HEATSINK T0220080014HS2HEATSINK T0220080014J1BLADE FASTON W/FEET117708J2BLADE FASTON W/FEET117708J3BLADE FASTON W/FEET117708J4BLADE FASTON W/FEET117708J5BLADE FASTON W/FEET117708J6BLADE FASTON W/FEET117708J7CONN MALE 7 PIN117217J8CONN 4 PIN117215J9BLADE FASTON W/FEET117708J10CONN 4 PIN117215J11CONN HEADER 2 PIN 0.156117404J12CONN HEADER 2 PIN 0.156117404J13BLADE FASTON W/FEET117708J14CONN MALE 9 POS FRICTION LOCK117244J15CONN MALE 9 POS FRICTION LOCK117244J16CONN MALE 9 POS FRICTION LOCK117244J17BLADE FASTON W/FEET117708J18BLADE FASTON W/FEET117708K1RELAY 48V 18.8ma 2560 ohms087052Q1TRIAC DRIVER OPTOCOUPLER 600V131022Q2TRANSISTOR NPN132223Q3TRANSISTOR PNP132224Q4TRANSISTOR NPN132223Q5TRANSISTOR PNP132224Q6TRANSISTOR P CHAN JUNCTION FET132226Q7TRANSISTOR PNP132224R1RES MF 33.2K 1% 1/4W144015R2RES MF 33.2K 1% 1/4W144015R3RES MF 2.74M 1/4W144271R4RES WW 1.5K 10% 5W139079R5RES MF 1.1K 1% 1/4W144091R6RES MF 22.1K 1% 1/4W144187R7RES MF 1M 1/4W144269R8RES MF 12.1K 1% 1/4W144154R9RES MF 2.1K 1% 1/4W144299R10RES MF 12.1K 1% 1/4W144154R11RES MF 3.32K 1% 1/4W144095R12RES MF 20K 1% 1/4W144104R13RES MF 2.1K 1% 1/4W144299R14RES MF 150K 1% 1/4W144419R15RES WW 2.7 OHM 10W139173R16RES WW 2.7 OHM 10W139173SP1BRACKET PCB CARD MOUNTING003611SP2BRACKET PCB CARD MOUNTING003611SP3BRACKET PCB CARD MOUNTING003611SP4BRACKET PCB CARD MOUNTING003611T1H7919-A159215U1IC REGULATOR 15V133154U2IC REGULATOR -15V133153INPUT PCB 049829C1CAP ELECT 10UF 50V066445C2CAP ELECT 10UF 50V066445C3CAP MONO .1uF 50V 20% Z5U061305C4CAP MONO 47PF 200V 10% NPO061299C5CAP MONO 22PF 200V 10% NPO061298C6CAP MONO 22PF 200V 10% NPO061298C7CAP MPF 0.22UF 5% 63VDC064329C8CAP ELECT 10UF 50V066445C9CAP MONO .1uF 50V 20% Z5U061305C10CAP MONO .1uF 50V 20% Z5U061305C11CAP MPF 0.022UF 5% 63VDC064316J1XLR FEMALE HORIZ PCB WITH LATCH117814J2JACK RCA 1P RED117706J3JACK HEADPHONE DUAL BLACK 1/8117825J5CONN MALE 9 POS FRICTION LOCK117244J6CONN MALE 9 POS FRICTION LOCK117244R1RES MF 100 OHM 1% 1/4W144196R2RES MF 174K 1% 1/4W144352R3RES MF 174K 1% 1/4W144352R4RES MF 68.1 OHM 1% 1/4W144082R5RES MF 10K 1% 1/4W144053R6RES MF 10K 1% 1/4W144053R7RES MF 10K 1% 1/4W144053R8RES MF 1M 1/4W144269R9RES MF 1.5K 1% 1/4W144128R10RES MF 1.5K 1% 1/4W144128R11RES MF 20K 1% 1/4W144104R12RES MF 10 OHM 1% 1/4W144157R13RES MF 10 OHM 1% 1/4W144157S1SWITCH SLIDE148059SP1BRACKET PCB CARD MOUNTING003611U1IC OPERATIONAL AMP LOW NOISE133067U2IC NAND SCHMIT 2-IN X 4133192U3IC REGULATOR +5 VOLT133093METER/LIGHTS PCB 049830C1CAP MONO .1uF 50V 20% Z5U061305C2CAP ELECT 1000UF 25V066513C3CAP MONO .1uF 50V 20% Z5U061305C4CAP MONO .1uF 50V 20% Z5U061305C5CAP MONO .1uF 50V 20% Z5U061305C6CAP MPF 0.1UF 100V064337C7CAP MPF 0.22UF 5% 63VDC064329D1DIODE ZENER 8.2V 1/2W070130D2DIODE SILICON070047D3DIODE SILICON070047D4DIODE SILICON070047D5DIODE SILICON070047D6DIODE SILICON070047D7DIODE SILICON070047D8DIODE SILICON070047D9LED AMBER058133D10DIODE SILICON070047D11DIODE SILICON070047D12DIODE SILICON070047DS1LED BLUE 5MM HI-INT VFV 3.6058166DS2LED GREEN 5MM HI-INTEN VFV 3.5058165DS3LED BLUE 5MM HI-INT VFV 3.6058166DS4LED GREEN 5MM HI-INT VFV 3.5058165DS5LED GREEN 5MM HI-INT VFV 3.5058165DS6LED GREEN 5MM HI-INT VFV 3.5058165DS7LED GREEN 5MM HI-INT VFV 3.5058165DS8LED RED HIGH EFFICIENCY058148J1CONN MALE 9 POS FRICTION LOCK117244J2CONN 4 PIN117215J3CONN 3 POS MALE MTS100 NORMAL117214J4HEADER 2 PIN LATCHING117766J5CONN 4 PIN117215Q1TRANSISTOR NPN132223Q2TRANSISTOR NPN132223Q3TRANSISTOR NPN132223Q4TRANSISTOR NPN132223Q5TRANSISTOR NPN132223Q6TRANSISTOR SI NPN 25V132254Q7TRANSISTOR SI NPN 25V132254R1RES MF 47.5K 1% 1/4W144108R2RES MF 47.5K 1% 1/4W144108R3RES MF 10K 1% 1/4W144053R4RES MF 10K 1% 1/4W144053R5RES MF 8.25 OHM 1/4W144171R6RES MF 93.1K 1/4W144417R7RES MF 7.5K 1% 1/4W144210R8RES MF 12.1K 1% 1/4W144154R9RES MF 221K 1/4W144421R10RES MF 150K 1% 1/4W144419R11RES MF 4.75K 1% 1/4W144097R12RES MF 200K 1% 1/4W144117R13RES MF 681 OHM 1% 1/4W144195R14RES MF 18.2K 1/4W144181R15RES MF 22.1K 1% 1/4W144187R16RES MF 10M 1% 1/4W144264R17RES MF 150K 1% 1/4W144419R18RES MF 12.1K 1% 1/4W144154R19RES MF 4.75K 1% 1/4W144097R20POT TRIM 500 OHM 20% HORIZ ADJ134410R21POT TRIM 500 OHM 20% HORIZ ADJ134410R22POT TRIM 100K OHM 20%134383R23RES MF 221 OHM 1% 1/4W144172R24RES MF 221 OHM 1% 1/4W144172R25RES MF 100 OHM 1% 1/4W144196R26RES MF 12.1K 1% 1/4W144154R27RES MF 2.74M 1/4W144271R28RES MF 562 OHM 1/4W144408R29RES MF 806 OHM 1/4W144089R30RES MF 200K 1% 1/4W144117R31RES MF 4.75K 1/4W144097U1IC DUAL OPERATIONAL AMPLIFIER133260U2IC DUAL OPERATIONAL AMPLIFIER13326042526MC501EXPLODED VIEW2827EXPLODED VIEW cont and PARTS LIST1016492CENTER GLASS PLATE2016491GLASS PANEL W/HOLE3018717END CAP4018715TOP/BOTTOM END CAP5018711CENTER EXTRUSION6094042TAPE VINYL FOAM 1/16 X 1/47049321ASSY KNOB8104017WASHER FELT BLK 1 X 1/4 X 1/169100342SCREW 6-32 X 3/8 FILLISTER HD10092418FILTER BLUE DISPLAY11005309GLASS PANEL PLATE12005311GAP PLATE13100276SCREW MACH SEM 6-32 X 5/16 PH PN14101074SCREW TAPPING 4-40 X 1/4 PH PN15005310METER CLAMP16017913LOGO BACKLIGHT17094430FOAM TAPE 1/8” THK18124086METER19017901LOGO PUSHBUTTON BACKLIGHT20094274TAPE ADHESIVE21017923BACKLIGHT METER 6”22005306SUBPANEL23146243SWITCH POWER24021159BUSHING SWITCH25104138WASHER FIBER .150ID X .312OD26102045KEP NUT 6-32 SPECIAL27021030SPACER 6 X 1/428049830ASSY METER PCB29101054SCREW TAPTITE 6-32 X 1/4 PH PN BLK30101172SCREW TC 6-32 X 1/4 PH FL U/C31005291DUST COVER32100200SCREW MACH 10-32 X 1/2 TRUSS HD33126937DECAL TOP COVER34101059SCREW SM 6 X 5/8 PH PN TYPE A35049846POTTED TRANSFORMER POWER36049847POTTED TRANSFORMER OUTPUT37126913DECAL POWER TRANSFORMER38126914DECAL OUTPUT TRANSFORMER39005305CHASSIS40049829ASSY INPUT PCB41101197SCREW HI/LO 4-24 X 3/8 PH HD BLK42100250SCREW MACH SEMS 6-32 X 1/4 PH PN43117741POST BINDING BLACK44117740POST BINDING RED45178161HOLDER FUSE46117487RECEPTACLE AC LINE47078024GROMMET RUBBER 1” ID48078034GROMMET49018690HEATSINK50049828ASSY DRIVER/HEATSINK PCB51084206ISOSTRATE52112087SPACER PCB 1/453114141CLIP RIGHT ANGLE54049831ASSY POWER SUPPLY PCB55005307SUPPORT BRACKET56102006NUT MACH 10-32 W/LOCK57005308CAPACITOR STRAP58094391TAPE FOAM 1/8 X 3/459074091TERMINAL BLOCK AC60104001WASHER FLAT STEEL 4 X 9/32 X .02561104142WASHER LOCK 2.5mm INT STAR ZINC62102022NUT MACH 4-40 X 3/16 X 1/1663005240HEATSINK VENT64101176SCREW TC 6-32 X 1/2 PH PN TYPE F65104005WASHER FLAT STEEL 6 X 3/8 X .03266070139DIODE BRIDGE RECTIFIER67084135PAD THERMAL68102005NUT MACH 8-32 W/LOCK69017452KLIP WIRE70102020NUT 6-32 SELF LOCK71101078SCREW TAP 8-32 X 5/16 PH PN BLK72102052NUT GOLD SUPPLIED W/11775873104162WASHER LOCK INTERNAL TOOTH74102015NUT HEX M9 X .75 GOLD PLATED75005235HEATSINK COVER76104016WASHER INT STAR .5 X .630 X .02277005242BOTTOM COVER78106007SPRING CLIP LATCH TYPE79017218FOOT PLASTIC BLACK80104033WASHER FLAT #10 CLEAR ZINC81100159SCREW MACH 10-32 X 3/4 PH PN BLKPartNo.DescriptionRefNo.29MC501REPACKING INSTRUCTIONSSERVICE MANUALThe continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design withoutnotice. Because of the constant upgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, theaccuracy of the within schematic material, which is intended for information on