McIntosh MC2KW Service Manual
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POWER
MODULE
Performance Specifications ........................................ 2
Notes MC2KW ........................................................... 3
POWER MODULE
Rear Panel .................................................................. 3
Section Location ........................................................ 3
Block Diagram ........................................................... 4
Interconnection Diagram ...................................... 5 - 6
Amp Schematic and PCB ..................................... 7 - 9
Heatsink Schematic and PCB ............................ 10 - 11
Heatsink Slave Schematic and PCB ................... 12 - 13
Capacitor Schematic and PCB .................................. 14
Logo Schematic and PCB ......................................... 15

POWER AMPLIFIER

POWER MODULE WJ-A001 And Above
POWER MODULE WJ-B001 And Above
OUTPUT MODULE WJ-C001 And Above
CONTENTS
SERVICE MANUAL
SERIAL NO.
OUTPUT
MODULE
Logo Schematic and PCB ......................................... 16
Parts List ............................................................ 17 - 19
OUTPUT MODULE
Rear Panel ................................................................ 20
Section Location ...................................................... 20
Interconnection Diagram .................................. 21 - 22
Main Schematic and PCB ................................. 23 - 28
Meter Power Supply Schematic and PCB ........... 29 - 32
Meter Led Schematic and PCB .......................... 33 - 34
Parts List ............................................................ 35 - 37
Repacking Instruction .............................................. 39

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Summary of Contents for McIntosh MC2KW

  • Page 1: Table Of Contents

    MODULE OUTPUT MODULE CONTENTS Performance Specifications ........2 Logo Schematic and PCB ......... 16 Notes MC2KW ............3 Parts List ............17 - 19 POWER MODULE OUTPUT MODULE Rear Panel ..............3 Rear Panel ..............20 Section Location ............3 Section Location ............
  • Page 2: Performance Specifications

    230 Volts, 50/60Hz at 6.5 amps Dynamic Headroom 240 Volts, 50/60Hz at 6.5 amps Note: Refer to the rear panels of the MC2KW Output Module and MC2KW Power Modules for the correct voltage. Frequency Response +0, -0.25dB from 20Hz to 20,000Hz...
  • Page 3: Rear Panel

    MC2KW POWER REAR PANEL SECTION LOCATION TOP VIEW WITH COVER REMOVED...
  • Page 4: Block Diagram

    BLOCK DIAGRAM...
  • Page 5 MC2KW OUTPUT INTERCONNECT...
  • Page 6 050215 SCH...
  • Page 7 MC2KW POWER HEATSINK 050215 PCB 050216 SCH...
  • Page 8 HEATSINK HEATSINK SLAVE 4A 4B 050216 PCB 050282 SCH...
  • Page 9 MC2KW POWER HEATSINK SLAVE 4A 4B 050282 Rev.A 129610 MASTER HS...
  • Page 10 5 CAPACITOR 050217 RECT+ -80V -80V RECT- -80V -80V -80V...
  • Page 11 MC2KW POWER LOGO 050218 1.65k LOGO1 J1:1 J5:1 GREEN GREEN J1:2 J5:2 J1:3 J5:3 1.65k LOGO1 J1:4 J5:4 GREEN GREEN 1.65k GREEN GREEN 1.65k GREEN GREEN LOGO1 J2:1 J5:1 J2:2 J5:2 J2:3 J5:3...
  • Page 12 LOGO 050218 LOGO2 J5:1 J2:1 J5:2 J2:2 J5:3 J2:3...
  • Page 13: Parts List

    MC2KW POWER PARTS LIST Ref. No. Description Part No. INTERCONNECT TRANSISTOR PNP 132224 POWER TRANSFORMER 050230 TRANSISTOR PNP POWER 132255 DIODE BRIDGE RECT 070181 TRANSISTOR NPN 132223 ASSY THERMISTOR 052017 TRANSISTOR PNP 132224 ASSY THERMISTOR 052017 TRANSISTOR NPN 132223 CIRCUIT BREAKER 20A 240V...
  • Page 14: Parts List

    PARTS LIST con’t RES MF 1K 1% 1/4W 144090 STANDOFF 6-32 X 1/4 PCB MNT 112130 RES MF 475K 1% 1/4W 144364 STANDOFF 6-32 X 1/4 PCB MNT 112130 RES MET OX 47 OHM .5W 5% 137096 HEATSINK 018787 RES MF 47.5K 1% 1/4W 144108 CONN 8 POS M FRICTION LOCK 117275 RES MF 47.5K 1% 1/4W...
  • Page 15 MC2KW POWER PARTS LIST con’t CONN 3 POS M MTS100 NRML 117214 BLADE FASTON W/FEET 117708 CONN 2 POS RIGHT ANGLE 117274 TRANSISTOR NPN SILICON 132171 BLADE FASTON W/FEET 117708 TRANSISTOR PNP SILICON 132172 BLADE FASTON W/FEET 117708 TRANSISTOR MJE15032 NPN...
  • Page 16: Rear Panel

    REAR PANEL CLASS 3 WIRING CLASS 3 WIRING CLASS 3 WIRING BALANCED TO POWER MODULE TO POWER MODULE 120V 50/60Hz POWER INPUT UNBALANCED OUTPUT INPUTS 35 WATTS CONTROL MODE UNBAL SECTION LOCATION TOP VIEW WITH COVER REMOVED...
  • Page 17 MC2KW OUTPUT INTERCONNECT...
  • Page 18 MAIN 050219 SCH 1 OF 3...
  • Page 19 MC2KW OUTPUT MAIN 050219 SCH 2 OF 3...
  • Page 20 MAIN MAIN 050219 SCH 3 OF 3 050219 PCB...
  • Page 21 MC2KW OUTPUT METER POWER SUPPLY 050220 SCH...
  • Page 22 METER POWER SUPPLY 050220 PCB 129595 700120 Rev.A JM P1...
  • Page 23 MC2KW OUTPUT METER LED LOGO1 LOGO2 POWER GUARD 050221 SCH and PCB BLUE LIGHTS ON J1:1 -15V J3:1 LOGO J1:2 LOGO J3:2 LOGO1 LOGO2 PG LIGHT J5:1 J6:1 J1:3 -15V J3:1 PG_LIGHT J3:3 J2:1 PG LIGHT J7:1 BLUE-GREEN J4:1 J5:2...
  • Page 24: Parts List

    CABLE ASSY 16 COND 171746 RES MF 221K 1% 1/4W 144421 BLADE FASTON W/FEET 117708 RES MF 4.75K 1% 1/4W 144097 METER MC2KW 124090 BLADE FASTON W/FEET 117708 RES MF 221K 1% 1/4W 144421 SWITCH ASSY POWER/METER 052126 BLADE FASTON W/FEET...
  • Page 25: Parts List

    MC2KW POWER PARTS LIST CAP ELECT 3300UF 35V 066509 RES MF 324 OHM 1% 1/4W 144338 CAP MONO .1UF 50V 20% 061305 RES MF 2.21M 1/4W 144265 CAP PLYPROP .047UF 10% 250VDC 064364 RES WW .22 OHM 1W 5% 139159...
  • Page 26 NOTES...
  • Page 27: Repacking Instruction

    Also, to pro- tect the finish of the glass and metal surfaces it is Qty. Part No. Description advisable to place the MC2KW Output Module and 034104 Shipping carton bottom the MC2KW Power Modules into the orginal pro- 034105...
  • Page 28 OUTPUT MODULE WJ-C001 And Above The continuous improvement of its 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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