McIntosh Power Amplifier MC303, Service Manual

Page: 1 / 36

MC303
MC303
POWER
AMPLIFIER
SERVICE MANUAL
SERIAL NO. ZH1001 And Above
Performance Specifications ..........................................2
Notes ...........................................................................2
Rear Panel ...................................................................3
Section Location ..........................................................4
Block Diagram ............................................................5
Interconnection Diagram ........................................7 - 8
Backup Power Suppy Schematic and PCB .............9 - 12
Control Schematic and PCB ................................13 - 16
Input Channel 1-2 Schematic and PCB ...............17 - 20 Input Channel 3 Schematic and PCB ..................21 - 24
Capacitor Schematic and PCB ............................25 - 28
Heatsink Schematic and PCB ..............................29 - 34
Terminal Schematic and PCB ..............................35 - 38
Display Schematic and PCB................................39 - 44
Meter Control Schematic and PCB ......................45 - 46
Meter Light Schematic and PCB ..........................47 - 48
Parts List .............................................................51 - 55
Repacking Instruction ................................................57
CONTENTS