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McIntosh MC1201 Service Manual
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POWER AMPLIFIER
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 4
Block Diagram ...................................................... 5 - 6
Interconnection Diagram ...................................... 7 - 8
Heatsink Schematic and PCB .............................. 9 - 10
Heatsink Slave Schematic and PCB ..................... 11 - 12
Driver Schematic and PCB ................................. 13 - 15
CONTENTS
SERVICE MANUAL
Input Schematic and PCB ......................................... 16
Capacitor Schematic and PCB ........................... 17 - 18
Meter Schematic and PCB ................................. 19 - 22
Lamp Schematic and PCB ................................. 23 - 24
Light Schematic and PCB ......................................... 25
Power Guard Schematic and PCB ............................ 26
Parts List ............................................................ 27 - 30
Exploded Views and Parts Lists .......................... 31 - 38
Repacking Instruction .............................................. 39

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Summary of Contents for McIntosh MC1201

  • Page 1: Table Of Contents

    POWER AMPLIFIER CONTENTS Performance Specifications ........2 Input Schematic and PCB ......... 16 Notes ................. 2 Capacitor Schematic and PCB ......17 - 18 Rear Panel ..............3 Meter Schematic and PCB ......... 19 - 22 Section Location ............4 Lamp Schematic and PCB .........
  • Page 2: Performance Specifications

    220 Volts, 50/60Hz at 7.5 amps 230 Volts, 50/60Hz at 6.5 amps Dynamic Headroom 240 Volts, 50/60Hz at 6.5 amps 2.1dB Note: Refer to the rear panel of the MC1201 for the correct voltage. Frequency Response Dimensions +0, -0.25dB from 20Hz to 20,000Hz...
  • Page 3: Rear Panel

    MC1201 REAR PANEL...
  • Page 4: Section Location

    SECTION LOCATIONS TOP VIEW WITH COVER REMOVED BOTTOM VIEW WITH COVER REMOVED...
  • Page 5: Block Diagram

    MC1201 BLOCK DIAGRAM...
  • Page 6 INTERCONNECT...
  • Page 7 MC1201 HEATSINK 049485...
  • Page 8 HEATSINK SLAVE 3A 3B 049487...
  • Page 9 MC1201 DRIVER 049486...
  • Page 10 DRIVER INPUT 049486 049496...
  • Page 11 MC1201 CAPACITOR 049367...
  • Page 12 METER 049489...
  • Page 13 MC1201 METER 049489...
  • Page 14 LAMP 049488...
  • Page 15 MC1201 LIGHT POWER GUARD 049488 049488 LIGHT 049488...
  • Page 16: Parts List

    PARTS LIST DESCRIPTION REFERENCE NO. PART NO. REFERENCE NO. DESCRIPTION PART NO. INTERCONNECT CAP M POLY .022UF 5% 63VDC 06431600 C1 C2 C3 C4 27000uF CAPACITOR 06648900 CAP ELECT 220UF 16V SHORT CAN 06633000 C5 C6 CAPACITOR ASSY 05200500 DISC CAP: 1.8PF +/-.25PF NPO 06100200 D1 D2 DIODE BRIDGE RECTIFIER...
  • Page 17 MC1201 PARTS LIST con’t DESCRIPTION REFERENCE NO. DESCRIPTION PART NO. REFERENCE NO. PART NO. 049496 INPUT PCB RES MF 10M 1% 1/4W 14426400 RES MF 18.2K 1% 1/4W 14418100 C4 C6 CAP ELECT 10UF 50V 06644500 R10 R56 RES MF 100 1% 1/4W...
  • Page 18 EXPLODED VIEW...
  • Page 19 MC1201 EXPLODED VIEW...
  • Page 20 EXPLODED VIEW...
  • Page 21 MC1201 EXPLODED VIEW PARTS LIST Ref. Part Description 016433 GLASS PANEL 049321 KNOB ASSY 104164 BLK FELT WASH 1 X 1/4X 1/16 018631 HANDLE FRONT 018633 PANEL SIDE 100200 MS 10-32 X 1/2 PHIL TRUSS HD 092429 DISPLAY FILTER BLUE...
  • Page 22 EXPLODED VIEW PARTS LIST con’t Description Part 005055 HEATSINK COVER RIGHT 005058 HEATSINK COVER LEFT 101097 TS 6-32 3/16 PHIL PAN TAP 100118 MS 6-32 X 1/2 PHIL PAN 100188 SEMS MS 10-32 X 3/8 INDENTED 049487 HEATSINK SLAVE PCB ASSY 005116 FRONT SUPPORT BRACKET 102006...
  • Page 23: Repacking Instruction

    REPACKING INSTRUCTIONS...
  • Page 24 SERVICE MANUAL 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.