McIntosh-MC501-pwr-sm维修电路原理图.pdf

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1、SERVICE MANUAL Performance Specifications . 2 Notes . 2 Top and Rear Views . 3 Section Location . 4 Block Diagram . 5 - 6 Interconnection Diagram . 7 - 8 Driver/Heatsink Schematic and PCB . 9 - 13 Power Schematic and PCB . 15 - 16 Input Schematic and PCB. 17 - 18 Meter/Lighting Schematic and PCB. 19

2、 - 20 Parts List . 21 - 24 Exploded View and Parts List . 25 - 28 Repacking Instructions . 29 CONTENTS POWER AMPLIFIER RadioFans.CN 收音机爱好者资料库 PERFORMANCE SPECIFICATIONS Power Output Stereo Minimum sine wave continuous average power output is: 500 watts into 2 ohm load 500 watts into 4 ohm load 500

3、watts into 8 ohm load Output Load Impedance 2, 4 or 8 ohms Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is 0.005% Intermodulation Distortion Maximum Intermodulation Distortion if instantaneo

4、us peak output 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 Headroom 1.8dB Frequency Response +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz Sensitivity 2.1 Volts Unbalan

5、ced Input 4.2 Volts Balanced Input A-Weighted Signal To Noise Ratio 97dB (124dB below rated output) Input Impedance 10,000 ohms Unbalanced Inputs 20,000 ohms Balanced Inputs Wide Band Damping Factor 100 (8 ohm wideband) Power Requirements 100 Volts, 50/60Hz at 8 amps 110 Volts, 50/60Hz at 7.2 amps 1

6、20 Volts, 50/60Hz at 6.6 amps 220 Volts, 50/60Hz at 3.3 amps 230 Volts, 50/60Hz at 3.3 amps 240 Volts, 50/60Hz at 3.3 amps Note: Refer to the rear panel of the MC501 for the correct voltage. Overall Dimensions 17-1/2 inches (44.45cm) W, 9-7/16 inches (23.97cm) H, 14-3/4 inches (37.5cm) D, including

7、clearance for con- nectors Weight 91.5 pounds (41.6kg) net, 105.5 pounds (48kg) in shipping carton 2 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

8、 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, Squ

9、are 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. NOTES RadioFans.CN 收音机爱好者资料库 3 MC501 TOP and REAR PANEL TOP VIEW REAR VIEW

10、 RadioFans.CN 收音机爱好者资料库 4 SECTION LOCATIONS TOP VIEW WITH COVER REMOVED BOTTOM VIEW WITH COVER REMOVED RadioFans.CN 收音机爱好者资料库 56 BLOCK DIAGRAM MC501 RadioFans.CN 收音机爱好者资料库 78 INTERCONNECT1 RadioFans.CN 收音机爱好者资料库 DRIVER/HEATSINK 0498282A MC501 910 2B DRIVER SECTION RadioFans.CN 收音机爱好者资料库 1112 DR

11、IVER/HEATSINK 0498282A 2B HEATSINK SECTION RadioFans.CN 收音机爱好者资料库 1314 MC501 DRIVER/HEATSINK 0498282A 2BNOTES RadioFans.CN 收音机爱好者资料库 1516 POWER 0498313 RadioFans.CN 收音机爱好者资料库 1718 INPUT 0498294 MC501 RadioFans.CN 收音机爱好者资料库 1920 METER/LIGHTING 0498305 RadioFans.CN 收音机爱好者资料库 2122 MC501 PARTS LIST

12、 Ref. No.DescriptionPart No. 1 2B 2A 3 INTERCONNECT BP1BINDING POST, RED117740 BP2BINDING POST, BLK117741 BP3BINDING POST, RED117740 BP4BINDING POST, BLK117741 BP5BINDING POST, RED117740 BP6BINDING POST, BLK117741 DIDIODE, BRIDGE RECTIFIER070139 F1FUSE089105 J1RECEPTACLE, AC LINE117487 MT1METER12408

13、6 RT1THERMISTER ASSY052008 RT2THERMISTER ASSY052008 S1SWITCH146243 S2SWITCH146243 T1TRANSFORMER, POWER049846 T2TRANSFORMER, OUTPUT049847 TB1TERMINAL BLOCK AC074091 DRIVER/HEATSINK PCB 049828 C1CAP MONO 470PF 100V 10PO061302 C2CAP MONO .1uF 50V 20% Z5U061305 C3CAP MONO .1uF 50V 20% Z5U061305 C4CAP EL

14、ECT 47UF 35V066446 C5CAP ELECT 10UF 100VDC066462 C6CAP ELECT 10UF 100VDC066462 C7CAP MONO .1uF 50V 20% Z5U061305 C8CAP MONO .1uF 50V 20% Z5U061305 C9CAP MONO 220PF 100V 10PO061301 C10CAP MONO 100PF 100V 10% NPO061300 C11CAP MONO 100PF 100V 10% NPO061300 C12CAP ELECT 220UF 25V066507 C13CAP MPF 0.0047

15、UF 5VDC064308 C14CAP POLYPROP 0.15UF 10VDC064363 C15CAP POLYPROP .047UF 10VDC064364 C16CAP ELECT 10UF 100VDC066462 C17CAP ELECT 10UF 100VDC066462 C18CAP MONO .01UF 50V 20% X7R061304 C19CAP ELECT 47UF 35V066446 C20CAP ELECT 47UF 35V066446 C21CAP MONO .01UF 50V 20% X7R061304 C22CAP MONO .1uF 50V 20% Z

16、5U061305 C23CAP MONO 100PF 100V 10PO061300 C24CAP MONO 100PF 100V 10% NPO061300 C25CAP MONO .1uF 50V 20% Z5U061305 C26CAP MPF 0.47UF 5/100VDC064442 C27CAP MPF 0.47UF 5/100VDC064442 D1DIODE SILICON070047 D2DIODE SILICON070047 D3DIODE SILICON070047 D4DIODE SILICON070047 D5DIODE SILICON070047 D6DIODE 2

17、00V 3A070126 D7DIODE 200V 3A070126 J1CONN MALE 9 POS FRICTION LOCK117244 J2CONN MALE 9 POS FRICTION LOCK117244 J3CONN HEADER 2 PIN 0.156117404 J4BLADE FASTON W/FEET117708 J5CONN 4 PIN117215 J6BLADE FASTON .110117712 J7BLADE FASTON W/FEET117708 J8CONN 2 PIN MALE117213 LD1LDR NETWORK VTL5C9144179 Q1TR

18、ANSISTOR PNP132224 Q2TRANSISTOR NPN132223 Q3TRANSISTOR NPN132223 Q4TRANSISTOR N JFET132222 Q5TRANSISTOR N JFET132222 Q6TRANSISTOR N JFET132222 Q7TRANSISTOR NPN POWER132255 Q8TRANSISTOR SI NPN 25V132254 Q9TRANSISTOR NPN POWER132255 Q10TRANSISTOR PNP132224 Q11TRANSISTOR NPN POWER132255 Q12TRANSISTOR S

19、I NPN 25V132254 Q13TRANSISTOR NPN132223 Q14TRANSISTOR SI NPN 25V132254 Q15TRANSISTOR NPN132223 Q16TRANSISTOR PNP132224 Q17TRANSISTOR NPN 25C3334C132285 Q18TRANSISTOR PNP 2SA32IC132286 Q19TRANSISTOR NPN SILICON132171 Q20TRANSISTOR PNP SILICON132172 Q21TRANSISTOR NPN132223 Q22TRANSISTOR NPN 25C3334C13

20、2285 Q23TRANSISTOR PNP 2SA32IC132286 Q24TRANSISTOR NPN132268 Q25TRANSISTOR PNP132267 Q26TRANSISTOR NPN POWER 2SC5200132291 Q27TRANSISTOR PNP POWER 2SA1943132292 Q28TRANSISTOR NPN POWER 2SC5200132291 Q29TRANSISTOR PNP POWER 2SA1943132292 Q30TRANSISTOR NPN POWER 2SC5200132291 Q31TRANSISTOR PNP POWER 2

21、SA1943132292 Q32TRANSISTOR NPN POWER 2SC5200132291 Q33TRANSISTOR PNP POWER 2SA1943132292 Q34TRANSISTOR NPN POWER 2SC5200132291 Q35TRANSISTOR PNP POWER 2SA1943132292 R1RES MF 10 OHM 1% 1/4W144157 R2RES MF 10 OHM 1/4W144157 R3RES MF 4.75K 1% 1/4W144097 R4RES MF 100 OHM 1% 1/4W144196 R5RES MF 475 OHM 1

22、% 1/4W144086 R6RES MF 22.1K 1% 1/4W144187 R7RES MF 10M 1% 1/4W144264 R8RES MF 267K 1% 1/4W144118 R9RES MF 2.21K 1% 1/4W144298 R10RES MF 221 OHM 1% 1/4W144172 R11RES MF 267K 1% 1/4W144118 R12RES MF 47.5K 1% 1/4W144108 R13RES MF 47.5K 1/4W144108 R14RES MF 3.32K 1% 1/4W144095 R15RES MF 221 OHM 1% 1/4W1

23、44172 R16RES MF 1K 1% 1/4W144090 R17RES MF 221 OHM 1% 1/4W144172 R18RES MF 3.32K 1/4W144095 R19RES MF 221 OHM 1% 1/4W144172 R20RES MF 1K 1% 1/4W144090 R21RES MF 221 OHM 1% 1/4W144172 R22RES MF 267 OHM 1/4W144173 R23RES MF 267K 1% 1/4W144118 R24RES MF 187K 1% 1/4W144406 R25RES MF 324 OHM 1% 1/4W14433

24、8 R26RES MF 324 OHM 1% 1/4W144338 R27RES MF 3.79k .1144398 R28RES MF 6.49K .5/4W144401 R29RES MF 221 OHM 1/4W144172 R30RES WW 2 OHM 10% 5W139005 R31RES WW 4 OHM 5W139119 R32RES FP 22 OHM 1/4W 5137033 R33RES FP 22 OHM 1/4W 5137033 R34RES MF 324 OHM 1/4W144338 R35RES MF 324 OHM 1/4W144338 R36RES WW 0.

25、1 OHM 5W144243 R37RES MF 22.1K 1/4W144187 R39RES MF 22.1K 1/4W144187 R40RES MET OX 680 OHM 5% .5W137093 R41RES MET OX 680 OHM 5% .5W137093 R42RES MF 1.82K 1% 1/4W144296 R43RES MET OX 430 OHM 5% .5W137095 R44POT TRIM 200 OHM 20% HORIZ AD134390 R45RES MF 1.82K 1% 1/4W144296 R46RES MET OX 47 OHM 5% .5W

26、137096 R47RES WW DUAL .47 OHM 5% 5W139199 R48RES WW DUAL .47 OHM 5% 5W139199 R49RES WW DUAL .47 OHM 5% 5W139199 R50RES WW DUAL .47 OHM 5% 5W139199 R51RES WW DUAL .47 OHM 5W139199 R52RES MF 1K 1% 1/4W144090 R53RES MF 1K 1% 1/4W144090 R54RES WW DUAL .47 OHM 5W139199 RT1SENSOR THERMAL144249 U1IC OPAMP

27、NE4558N133028 POWER PCB 049831 C1CAP POLYPROP .047UF 10% 250VDC064364 C2CAP ELECT 10UF 50V066445 C327000uF 100V Electrolytic066489 C427000uF 100V Electrolytic066489 C5CAP ELECT 22UF 100V066506 C6CAP ELECT 3300UF 35V066509 C7CAP ELECT 3300UF 35V066509 C8CAP ELECT 4.7UF 50V066512 C9CAP ELECT 10UF 100V

28、DC066462 D1DIODE RECTIFIER070131 D2DIODE RECTIFIER070131 D3DIODE RECTIFIER070131 D4DIODE RECTIFIER070131 RadioFans.CN 收音机爱好者资料库 2324 PARTS LIST cont 5 D5DIODE RECTIFIER070131 D6DIODE RECTIFIER070131 D7DIODE SILICON070047 HS1HEATSINK T0220080014 HS2HEATSINK T0220080014 J1BLADE FASTON W/FEET117708 J2

29、BLADE FASTON W/FEET117708 J3BLADE FASTON W/FEET117708 J4BLADE FASTON W/FEET117708 J5BLADE FASTON W/FEET117708 J6BLADE FASTON W/FEET117708 J7CONN MALE 7 PIN117217 J8CONN 4 PIN117215 J9BLADE FASTON W/FEET117708 J10CONN 4 PIN117215 J11CONN HEADER 2 PIN 0.156117404 J12CONN HEADER 2 PIN 0.156117404 J13BL

30、ADE FASTON W/FEET117708 J14CONN MALE 9 POS FRICTION LOCK117244 J15CONN MALE 9 POS FRICTION LOCK117244 J16CONN MALE 9 POS FRICTION LOCK117244 J17BLADE FASTON W/FEET117708 J18BLADE FASTON W/FEET117708 K1RELAY 48V 18.8ma 2560 ohms087052 Q1TRIAC DRIVER OPTOCOUPLER 600V131022 Q2TRANSISTOR NPN132223 Q3TRA

31、NSISTOR PNP132224 Q4TRANSISTOR NPN132223 Q5TRANSISTOR PNP132224 Q6TRANSISTOR P CHAN JUNCTION FET132226 Q7TRANSISTOR PNP132224 R1RES MF 33.2K 1% 1/4W144015 R2RES MF 33.2K 1% 1/4W144015 R3RES MF 2.74M 1/4W144271 R4RES WW 1.5K 10% 5W139079 R5RES MF 1.1K 1% 1/4W144091 R6RES MF 22.1K 1% 1/4W144187 R7RES

32、MF 1M 1/4W144269 R8RES MF 12.1K 1% 1/4W144154 R9RES MF 2.1K 1% 1/4W144299 R10RES MF 12.1K 1% 1/4W144154 R11RES MF 3.32K 1% 1/4W144095 R12RES MF 20K 1% 1/4W144104 R13RES MF 2.1K 1% 1/4W144299 R14RES MF 150K 1% 1/4W144419 R15RES WW 2.7 OHM 10W139173 R16RES WW 2.7 OHM 10W139173 SP1BRACKET PCB CARD MOUN

33、TING003611 SP2BRACKET PCB CARD MOUNTING003611 SP3BRACKET PCB CARD MOUNTING003611 SP4BRACKET PCB CARD MOUNTING003611 T1H7919-A159215 U1IC REGULATOR 15V133154 U2IC REGULATOR -15V133153 INPUT PCB 049829 C1CAP ELECT 10UF 50V066445 C2CAP ELECT 10UF 50V066445 C3CAP MONO .1uF 50V 20% Z5U061305 C4CAP MONO 4

34、7PF 200V 10% NPO061299 C5CAP MONO 22PF 200V 10% NPO061298 C6CAP MONO 22PF 200V 10% NPO061298 C7CAP MPF 0.22UF 5% 63VDC064329 C8CAP ELECT 10UF 50V066445 C9CAP MONO .1uF 50V 20% Z5U061305 C10CAP MONO .1uF 50V 20% Z5U061305 C11CAP MPF 0.022UF 5% 63VDC064316 J1XLR FEMALE HORIZ PCB WITH LATCH117814 J2JAC

35、K RCA 1P RED117706 J3JACK HEADPHONE DUAL BLACK 1/8117825 J5CONN MALE 9 POS FRICTION LOCK117244 J6CONN MALE 9 POS FRICTION LOCK117244 R1RES MF 100 OHM 1% 1/4W144196 R2RES MF 174K 1% 1/4W144352 R3RES MF 174K 1% 1/4W144352 R4RES MF 68.1 OHM 1% 1/4W144082 R5RES MF 10K 1% 1/4W144053 R6RES MF 10K 1% 1/4W1

36、44053 R7RES MF 10K 1% 1/4W144053 R8RES MF 1M 1/4W144269 R9RES MF 1.5K 1% 1/4W144128 R10RES MF 1.5K 1% 1/4W144128 R11RES MF 20K 1% 1/4W144104 R12RES MF 10 OHM 1% 1/4W144157 R13RES MF 10 OHM 1% 1/4W144157 S1SWITCH SLIDE148059 SP1BRACKET PCB CARD MOUNTING003611 U1IC OPERATIONAL AMP LOW NOISE133067 U2IC

37、 NAND SCHMIT 2-IN X 4133192 U3IC REGULATOR +5 VOLT133093 METER/LIGHTS PCB 049830 C1CAP MONO .1uF 50V 20% Z5U061305 C2CAP ELECT 1000UF 25V066513 C3CAP MONO .1uF 50V 20% Z5U061305 C4CAP MONO .1uF 50V 20% Z5U061305 C5CAP MONO .1uF 50V 20% Z5U061305 C6CAP MPF 0.1UF 100V064337 C7CAP MPF 0.22UF 5% 63VDC06

38、4329 D1DIODE ZENER 8.2V 1/2W070130 D2DIODE SILICON070047 D3DIODE SILICON070047 D4DIODE SILICON070047 D5DIODE SILICON070047 D6DIODE SILICON070047 D7DIODE SILICON070047 D8DIODE SILICON070047 D9LED AMBER058133 D10DIODE SILICON070047 D11DIODE SILICON070047 D12DIODE SILICON070047 DS1LED BLUE 5MM HI-INT V

39、FV 3.6058166 DS2LED GREEN 5MM HI-INTEN VFV 3.5058165 DS3LED BLUE 5MM HI-INT VFV 3.6058166 DS4LED GREEN 5MM HI-INT VFV 3.5058165 DS5LED GREEN 5MM HI-INT VFV 3.5058165 DS6LED GREEN 5MM HI-INT VFV 3.5058165 DS7LED GREEN 5MM HI-INT VFV 3.5058165 DS8LED RED HIGH EFFICIENCY058148 J1CONN MALE 9 POS FRICTIO

40、N LOCK117244 J2CONN 4 PIN117215 J3CONN 3 POS MALE MTS100 NORMAL117214 J4HEADER 2 PIN LATCHING117766 J5CONN 4 PIN117215 Q1TRANSISTOR NPN132223 Q2TRANSISTOR NPN132223 Q3TRANSISTOR NPN132223 Q4TRANSISTOR NPN132223 Q5TRANSISTOR NPN132223 Q6TRANSISTOR SI NPN 25V132254 Q7TRANSISTOR SI NPN 25V132254 R1RES

41、MF 47.5K 1% 1/4W144108 R2RES MF 47.5K 1% 1/4W144108 R3RES MF 10K 1% 1/4W144053 R4RES MF 10K 1% 1/4W144053 R5RES MF 8.25 OHM 1/4W144171 R6RES MF 93.1K 1/4W144417 R7RES MF 7.5K 1% 1/4W144210 R8RES MF 12.1K 1% 1/4W144154 R9RES MF 221K 1/4W144421 R10RES MF 150K 1% 1/4W144419 R11RES MF 4.75K 1% 1/4W14409

42、7 R12RES MF 200K 1% 1/4W144117 R13RES MF 681 OHM 1% 1/4W144195 R14RES MF 18.2K 1/4W144181 R15RES MF 22.1K 1% 1/4W144187 R16RES MF 10M 1% 1/4W144264 R17RES MF 150K 1% 1/4W144419 R18RES MF 12.1K 1% 1/4W144154 R19RES MF 4.75K 1% 1/4W144097 R20POT TRIM 500 OHM 20% HORIZ ADJ134410 R21POT TRIM 500 OHM 20%

43、 HORIZ ADJ134410 R22POT TRIM 100K OHM 20%134383 R23RES MF 221 OHM 1% 1/4W144172 R24RES MF 221 OHM 1% 1/4W144172 R25RES MF 100 OHM 1% 1/4W144196 R26RES MF 12.1K 1% 1/4W144154 R27RES MF 2.74M 1/4W144271 R28RES MF 562 OHM 1/4W144408 R29RES MF 806 OHM 1/4W144089 R30RES MF 200K 1% 1/4W144117 R31RES MF 4.

44、75K 1/4W144097 U1IC DUAL OPERATIONAL AMPLIFIER133260 U2IC DUAL OPERATIONAL AMPLIFIER133260 4 RadioFans.CN 收音机爱好者资料库 2526 MC501 EXPLODED VIEW RadioFans.CN 收音机爱好者资料库 2827 EXPLODED VIEW cont and PARTS LIST 1016492CENTER GLASS PLATE 2016491GLASS PANEL W/HOLE 3018717END CAP 4018715TOP/BOTTOM END CAP 50

45、18711CENTER EXTRUSION 6094042TAPE VINYL FOAM 1/16 X 1/4 7049321ASSY KNOB 8104017WASHER FELT BLK 1 X 1/4 X 1/16 9100342SCREW 6-32 X 3/8 FILLISTER HD 10092418FILTER BLUE DISPLAY 11005309GLASS PANEL PLATE 12005311GAP PLATE 13100276SCREW MACH SEM 6-32 X 5/16 PH PN 14101074SCREW TAPPING 4-40 X 1/4 PH PN

46、15005310METER CLAMP 16017913LOGO BACKLIGHT 17094430FOAM TAPE 1/8” THK 18124086METER 19017901LOGO PUSHBUTTON BACKLIGHT 20094274TAPE ADHESIVE 21017923BACKLIGHT METER 6” 22005306SUBPANEL 23146243SWITCH POWER 24021159BUSHING SWITCH 25104138WASHER FIBER .150ID X .312OD 26102045KEP NUT 6-32 SPECIAL 270210

47、30SPACER 6 X 1/4 28049830ASSY METER PCB 29101054SCREW TAPTITE 6-32 X 1/4 PH PN BLK 30101172SCREW TC 6-32 X 1/4 PH FL U/C 31005291DUST COVER 32100200SCREW MACH 10-32 X 1/2 TRUSS HD 33126937DECAL TOP COVER 34101059SCREW SM 6 X 5/8 PH PN TYPE A 35049846POTTED TRANSFORMER POWER 36049847POTTED TRANSFORME

48、R OUTPUT 37126913DECAL POWER TRANSFORMER 38126914DECAL OUTPUT TRANSFORMER 39005305CHASSIS 40049829ASSY INPUT PCB 41101197SCREW HI/LO 4-24 X 3/8 PH HD BLK 42100250SCREW MACH SEMS 6-32 X 1/4 PH PN 43117741POST BINDING BLACK 44117740POST BINDING RED 45178161HOLDER FUSE 46117487RECEPTACLE AC LINE 47078024GROMMET RUBBER 1” ID 48078034GROMMET 490