McIntosh-MC601-pwr-sm 维修电路原理图.pdf
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1、MC601MC601QUAD BALANCEDPOWER AMPLIFIERSERVICE MANUALPRELIMINARYSERIAL NO. AAY1001 And AbovePerformance Specifications .2Notes .2Rear Panel .3Section Location .4Block Diagram .5 - 6Interconnection Diagram .7 - 8Main Schematic and PCB .9 - 16Capacitor Schematic and PCB .17 - 20Left Input Schematic and
2、 PCB .21 - 24Right Input Schematic and PCB .25 - 28Heatsink Schematic and PCB .29 - 34Left Terminal Schematic and PCB .35 - 38Right Terminal Schematic and PCB .39 - 42Display Schematic and PCB.43 - 46Parts List .49 - 54Repacking Instruction .55CONTENTSRadioFans.CN 收音机爱 好者资料库21. Unless otherwise note
3、d, all voltages indicated on the schematics are measured under the following conditions: a. AC input at rated voltage marked on rear panel. b. All voltages are +/-10% with respect to ground. A high impedance (10 megaohm) voltmeter must be used.2.Unlessotherwisespecified: a. Resistor values are in oh
4、ms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH)3. On PC board drawings, Square pad indicates: a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 14. WARNING Parts marked with the symbol have critical characteristics. Use only replacement
5、parts recom- mended by the manufacturer.5. Use McIntosh Remote Control Model HR063.NOTESPERFORMANCE SPECIFICATIONSSpecifications:Power OutputMinimum sine wave continuous average power output is:600 watts into 2 ohm load600 watts into 4 ohm load600 watts into 8 ohm loadOutput Load Impedance2, 4 or 8
6、ohmsRated Power Band20Hz to 20,000HzTotal Harmonic Distortion0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000HzDynamic Headroom1.8dBFrequency Response+0, -0.25dB from 20Hz to 20,000Hz+0, -3.0dB from 10Hz to 100,000HzInput Sensitivity (for rated
7、 output)4.8 Volts Balanced2.4 Volts UnbalancedSignal To Noise Ratio (A-Weighted)96dB Balanced (124dB below rated output)94dB Unbalanced (122dB below rated output)Intermodulation Distortion0.005% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any com-
8、bination of frequencies from 20Hz to 20,000Hz.Wide Band Damping FactorGreater than 40Input Impedance22,000 ohms Balanced22,000 ohms UnbalancedVoltage Gain29dB, 8 Ohms26dB, 4 Ohms23dB, 2 OhmsPower GuardLess than 2% Total Harmonic Distortion with up to a 14dB overdrive signalPower Control Input5-15VDC
9、, less than 1mAPower Control Output 1 and 212VDC, 50mA maximum totalOutput is delayed 0.2 seconds from turn OnPower RequirementsField AC Voltage conversion of the MC601 is not possible. The MC601 is factory configured for one of the following AC Voltages:100V 50/60Hz at 8 Amps110V 50/60Hz at 6.6 Amp
10、s120V 50/60Hz at 6.6 Amps220V 50/60Hz at 3.6 Amps230V 50/60Hz at 3.3 Amps240V 50/60Hz at 3.3 AmpsStandby: less than 0.5 wattNote: Refer to the rear panel of the MC601 for the correct voltage.Overall DimensionsWidth is 17-1/2 inches (44.45cm)Height is 9-7/16 inches (23.97cm) including feetDepth is 22
11、 inches (55.88cm) including the Front Panel, Handles and CablesWeight93 pounds (42.18 kg) net, 126 pounds (57.15 kg) in shipping cartonShipping Carton DimensionsWidth is 29-1/2 inches (74.93cm)Height is 17 inches (43.18cm)Depth is 29 inches (73.66cm)RadioFans.CN 收音机爱 好者资料库MC601REAR PANEL34SECTION LO
12、CATIONMC60156BLOCK DIAGRAMThermalTrak DC BIASOUTPUTMUTETHERMALSENSORSBALANCEDAMPPOWER GUARDATTENUATORINPUT MODESWITCH-AMP+AMPUNBALANCEDOUTPUTUNBALANCEDINPUTBALANCEDINPUTBALANCEDOUTPUT+-PGINDICATORTURN ONDELAYPOWERGUARDDIFFAMPDIFFAMPCURRENTSOURCEVOLTAGEAMPVOLTAGEAMPPREDRIVERPREDRIVERDRIVERDRIVEROUTPU
13、TOUTPUTPOSITIVECURRENTLIMITERNEGATIVECURRENTLIMITERNEGATIVEFEEDBACKCURRENTTRANSDUCERCURRENTLOGAMPVOLTAGELOGAMPSUMRECTIFIERMETERSWITCHHOLDDCAMPMETEROUTPUTAUTO-FORMER8 ohm4 ohm2 ohmPREDRIVERDRIVEROUTPUTNEGATIVECURRENTLIMITERDIFFAMPVOLTAGEAMPThermalTrak DC BIASCURRENTSOURCEPOWERGUARDDIFFAMPVOLTAGEAMPPR
14、EDRIVERDRIVEROUTPUTPOSITIVECURRENTLIMITERINRUSHCURRENTLIMITERAC PowerMAIN RELAYSBACKUPPOWER SUPPLYCONTROLLOGICLIGHTINGCONTROLPOWERCONTROLFUSEPOWERSWITCHLOW VOLTAGESUPPLYPOWERTRANSFORMERMAINSUPPLYThermalTrak DC BIASOUTPUTMUTETHERMALSENSORSBALANCEDAMPPOWER GUARDATTENUATORINPUT MODESWITCH-AMP+AMPUNBALA
15、NCEDOUTPUTUNBALANCEDINPUTBALANCEDINPUTBALANCEDOUTPUT+-PGINDICATORTURN ONDELAYPOWERGUARDDIFFAMPDIFFAMPCURRENTSOURCEVOLTAGEAMPVOLTAGEAMPPREDRIVERPREDRIVERDRIVERDRIVEROUTPUTOUTPUTPOSITIVECURRENTLIMITERNEGATIVECURRENTLIMITERNEGATIVEFEEDBACKCURRENTTRANSDUCERCURRENTLOGAMPVOLTAGELOGAMPSUMRECTIFIERMETERSWIT
16、CHHOLDDCAMPMETEROUTPUTAUTO-FORMER8 ohm4 ohm2 ohmPREDRIVERDRIVEROUTPUTNEGATIVECURRENTLIMITERDIFFAMPVOLTAGEAMPThermalTrak DC BIASCURRENTSOURCEPOWERGUARDDIFFAMPVOLTAGEAMPPREDRIVERDRIVEROUTPUTPOSITIVECURRENTLIMITER78INTERCONNECT1MC601MAIN 751232 SCH 1 OF 32910J10J1126841357PRIMARYT2.15uFC13J9:1J9:2+.3At
17、R38D16D17D15D18111BLUGRNBLU1.1AtR40.047FC143300FC18100FC253300FC19+15VJ24J25J261.1AtR41-15V27.4KR4727.4KR501.21KR45100FC24HS427.4KR4482.5KR49HS3221KR48.01FC21D19D20D21D221ORNJ221ORNJ23PWR RLY.3V.3V5V+5VAC DETECTOR0V4213B+G ND5U6+5V312Q16312Q15100KR39150KR42.1FC15AC DET11AC NAC FTRT2J20J18J15J13J14J1
18、9J17J16VIOWHT/VIOWHTBLKBLK/GRYGRYJ12J21110V/120VABCDEGHIJFBLUGRNBLUORNORNWHTBLKD14TEST ONLYNO CONNECTIONAPPLY 12VDCTO ENERGIZE RELAYSWITH NO AC POWER3300FC16100FC23+5V47.5KR43INON/OFFOUTGNDADJ_TAB162345U7HS2150KR46.01FC20INON/OFFOUTGNDADJ_TAB162345U9INON/OFFOUTGNDADJ_TAB162345U81111111111TRT12134K12
19、134K2J7:1J7:4J7:7J7:10J8:1J8:4J8:10+5V.1FC17-BRNBRN.1FC2212V12V.3V-20V20V1112MAIN 751232 SCH 2 OF 3210kR23150kR28D13312Q11.22uFC111uFC12100R29METER LOG AMP200kR25METER DRIVER312Q10312Q13+14VM+14VM475kR30657U4:222.1kR27D11D12D6D7D1023184B+B-U5:1+14VM-5VMPGND220FC6+14VM.1UFC8PGND+15V220FC71kR20-5VM.1U
20、FC9-15V47 .5 WR1912T110R221000FC1033.2kR2423184B+B-U4:1D4D5D8+14VM-5VM18.2kR26D9MUTE1MR37213GDSQ14657U5:2HOLD0.1 1WR2112.1kR32-5VM-5VM200kR331kR353.32kR341FUNC 1J5:11FUNC 1J5:21FUNC 1J6:11FUNC 1J6:2METERMETD3MET VCAL 2CAL 1475kR31312Q12475KR36-5VM1000pFC26MC6011314MAIN 751232 SCH 3 OF 32+5V.1UFC310F
21、C4312GDSQ2AMP MUTINGTURN ON DELAY1uFC21MR1.22uFC1+15V+15V312Q1DRIVERPC OUTPUTMUTE5V0V5V12V0V13.2V5V-18VTHERMAL PROTECTION-15V-15V-15V4213VccGND5U1+5V4213VccGND5U2+5V4213VccGND5U3+5VD147.5KR310KR4.1UFC51KR1322.1R14312Q7312Q32.21MR2312Q5312Q6312Q810KR1133.2KR101KR612.1KR1212.1KR1612.1KR17+ PTC- PTC1KR
22、71.82KR18312Q9PC IN.6VAC DET+ PTCPWR RLY(+) PTC-15V+15V+15V-15VMUTEPG LTMUTE-18VHEATSINK- PTC(-) PTC-15V+15V+15V-15VMUTEPG LTMUTE-18VJ4:1DISPLAYPC INML REMGNDJ3:1J3:2J3:3J3:4J3:5+15V+15V-15V-15VPC OUTGNDJ3:6ML REM555555INPUTJ3:7GND5PC OUTPUTDELAYJ1:7J1:1J1:4J1:5J2:7J2:1J2:4J2:5ML REMPC INPC OUTPWR O
23、NPG LTPG LTAC DETJ4:2J4:4J4:5J4:7+15V-15V+15V-15VJ4:11J4:14HOLDHOLD+5V+5V77777888888888J4:13J1:3J2:3HEATSINK77777.3VD2PWR ONJ4:8100KR5METER VMET VJ1:67-15V12.1KR15312Q4+15V10KR910KR80V0V0V0V0V-7VJ4:16J4:17J4:18J4:12J4:10J4:9CAL 2CAL 1J4:1588CAL 1CAL 281516MAIN 751232 PCB2MC6011718CAPACITOR 751207 SC
24、H43J1J10J2J8111REDREDBLK27000FC2PWR TRANSFORMER SECONDARYREDYELREDBRIDGEJ3J4J5J7J6J13:1J13:2J15:1J15:2+V AM P-V AM P77L HTSNK77R HTSNKJ9J12J11.22FC12341ACACD1+V AMP-V AMP+V CAP-V CAP27000FC3RECTIFIER1YEL44334343+V AM P-V AM PBLUORNBLUORNREDGRNREDGRN+V BRG-V BRGBREAKAWAYBREAKAWAY1920CAPACITOR 751207
25、PCB43MC6012122INPUT 751233 SCH577GND(-) INP+14V-14V10uFC11.1UFC12.1UFC1022MAINJ8:14231S-+GJ11Top3J3:110uFC4213GDSQ1PC IN100R13V +V -VocmENA172854369HT SNKU22.21kR162.21kR171.82kR101.82kR8+14V-14VJ8:2J8:3J8:4J8:5J8:6+15V-15VPC INPC OUTGNDML REMGNDJ8:722222HEATSINK77GNDHEATSINK77PG ATT22.1R1222.1R1174
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