McIntosh MR85 Service Manual

SERVICE MANUAL
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 3
Block Diagram ........................................................... 4
Interconnection Diagram ...................................... 5 - 6
Power Supply Schematic and PCB ...................... 7 - 10
Display Schematic and PCB .............................. 11 - 16
Tuner Schematic and PCB ................................. 17 - 19
RAA1 Schematic and PCB........................................ 20
Parts List ............................................................ 21 - 22
Exploded View and Parts List ............................. 24 - 26
Repacking Instructions ............................................. 27
CONTENTS
INCLUDING TM1 TUNER MODULE OPTION
AM/FM TUNER

McIntosh MR85 Specifications

General

Brand	McIntosh
Model	MR85
Category	Tuner
Language	English

Summary

McIntosh MR85 Performance Specifications

FM Tuner Performance Details

Detailed technical performance metrics for FM reception, including sensitivity and distortion.

AM Tuner Performance Details

Detailed technical performance metrics for AM reception, including sensitivity and distortion.

McIntosh MR85 Block Diagram

Tuner and Audio Signal Flow

McIntosh MR85 Interconnect Diagram

McIntosh MR85 Power Supply Schematic

Power Supply Circuit Analysis

Detailed schematic of the MR85 power supply, including regulators and filters.

McIntosh MR85 Display Schematic

Display Control Circuitry

Schematic for the front panel display driver ICs, buttons, and interface connections.

McIntosh MR85 Tuner Schematic

AM/FM Tuner Circuit Analysis

Detailed schematic of the main AM/FM tuner section, including RF and IF stages.

McIntosh MR85 RAA1 Schematic

RAA1 Tuner Circuit Analysis