McIntosh MC202 Service Manual
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POWER AMPLIFIER
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 3
Block Diagram ...................................................... 5 - 6
Interconnection Diagram ...................................... 7 - 8
Heatsink Schematic and PCB .............................. 9 - 10
Driver Schematic and PCB ................................ 11 - 12
CONTENTS
SERVICE MANUAL
Meter Schematic and PCB ................................. 13 - 19
Power Guard Lamp Schematic and PCB .................. 16
Meter Light Schematic and PCB ............................... 17
Panel Lamp Schematic and PCB ............................... 18
Parts List ............................................................ 19 - 20
Exploded View and Parts List ............................. 21 - 24
Repacking Instructions ............................................. 25

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Summary of Contents for McIntosh MC202

  • Page 1: Table Of Contents

    POWER AMPLIFIER CONTENTS Performance Specifications ........2 Meter Schematic and PCB ......... 13 - 19 Notes ................. 2 Power Guard Lamp Schematic and PCB ....16 Rear Panel ..............3 Meter Light Schematic and PCB ....... 17 Section Location ............3 Panel Lamp Schematic and PCB .......
  • Page 2: Performance Specifications

    230 Volts, 50/60Hz at 2.0 amps Frequency Response 240 Volts, 50/60Hz at 2.0 amps +0, -0.25dB from 20Hz to 20,000Hz Note: Refer to the rear panel of the MC202 for the correct +0, -3dB from 10Hz to 100,000Hz voltage. Total Harmonic Distortion Dimensions 0.005% maximum at any power level from 250...
  • Page 3: Rear Panel

    MC202 REAR PANEL SECTION LOCATIONS...
  • Page 4 NOTES...
  • Page 5: Block Diagram

    MC202 BLOCK DIAGRAM...
  • Page 6 INTERCONNECT...
  • Page 7 MC202 HEATSINK 2A 2B 049346...
  • Page 8 DRIVER 049353...
  • Page 9 MC202 METER 049352...
  • Page 10 METER POWER GUARD LAMP 049352 049354...
  • Page 11 MC202 METER LIGHT PANEL LAMP 049354 049354 METER LIGHT PANEL LAMP 049354 049354...
  • Page 12: Parts List

    PARTS LIST PART NO DESCRIPTION REFERENCE NO INTERCONNECT 070139 DIODE RECTIFIER 132255 TRANSISTOR PNP Q2 Q38 Q48 Q50 Q51 Q54 133192 IC NAND SCHMIT 2-IN X 4 089104 FUSE 6.3A 250V SLO BLO 132285 TRANSISTOR NPN 25C3334C Q17 Q21 133260 DUAL OPERATIONAL AMPLIFIER IC2 IC3 124077...
  • Page 13: Exploded View

    MC202 EXPLODED VIEW...
  • Page 14: Exploded View And Parts List

    EXPLODED VIEW PARTS LIST Part Description 016411 GLASS PANEL 102003 MACH NUT 6-32 W/LOCK 049320 KNOB ASSEMBLY 112103 HEX SPACER 6-32 X 2.375 104017 BLK FELT WASHER 049353 DRIVER PCB ASSY 018611 5” ENDCAP 104005 STEEL WASHER: FLAT 6 X 3/8 X .032 101042 TS 4-40 X 1/2 SLOT FILLISTER 100255...
  • Page 15: Repacking Instructions

    REPACKING INSTRUCTIONS...
  • Page 16 The continuous improvement of it’s 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.

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