McIntosh MHT200 Service Manual

SERVICE MANUAL
Performance Specifications ................................... 2 - 3
Notes ......................................................................... 3
Rear Panel .................................................................. 4
Section Location ........................................................ 4
Block Diagram ...................................................... 5 - 7
Interconnection Diagram .................................... 8 - 10
Display Schematic and PCB ............................... 11 - 18
Keyboard Schematic and PCB ....................... 13, 17 - 18
Bottom Schematic and PCB ................................ 19 - 24
Power Supply Schematic and PCB..................... 25 - 28
Data2 Schematic and PCB................................. 29 - 32
Data1 Schematic and PCB................................. 33 - 36
Digital Schematic and PCB ................................ 37 - 40
S-Video Schematic and PCB.............................. 41 - 52
Composite Video Schematic and PCB ............... 53 - 58
Main Audio Schematic and PCB ....................... 59 - 74
Multi Channel Schematic and PCB .................... 75 - 86
Amplifier Schematic and PCB .......................... 89 - 104
Tuner AM/FM Alignment Procedure ............. 105 - 106
Tuner/RAA1 Schematic and PCB ................... 107 - 110
DSP Module PCB ................................................... 111
Backup Power Supply ............................................ 112
Exploded Views and Parts Lists ...................... 113 - 114
Repacking Instruction ............................................ 115
CONTENTS
A/V SYSTEM CONTROLLER

McIntosh MHT200 Specifications

General

Brand	McIntosh
Model	MHT200
Category	Controller
Language	English

Summary

Performance Specifications

Preamplifier and Processor Specifications

Details performance metrics for preamplifier and processor functions.

Power Amplifier Specifications

Outlines performance characteristics of the power amplification stage.

General Specifications

Covers overall unit specifications including power, dimensions, and weight.

Tuner Performance Specifications

FM Tuner Performance

Specifies performance parameters for the FM reception.

AM Tuner Performance

Specifies performance parameters for the AM reception.

Service Notes

Important Service Notes

Provides important operational and safety notes for the service manual.

Rear Panel Overview

Rear Panel Connections

Illustrates and labels all input/output connectors on the rear panel.

Section Locations

Component Location Guide

Maps internal component locations to their respective PCBs.

Block Diagram

System Block Diagram

Illustrates the overall functional architecture and signal flow of the unit.

Interconnect Diagram

Wiring Interconnect Overview

Shows how different PCBs and modules are interconnected within the system.

Display Schematics

Display Circuit Schematic

Detailed schematic of the display circuitry, including related components.

Keyboard Schematics

Keyboard Circuit Schematic

Detailed schematic of the keyboard input circuitry and its connections.

Bottom PCB Schematic

Bottom PCB Schematic Diagram

Schematic diagram of the bottom PCB components and layout.

Power Supply Schematic

Power Supply Circuit Diagram

Schematic detailing the power supply unit's circuitry and voltage regulation.

Data2 PCB Schematic

Data2 Schematic Diagram

Schematic diagram for the Data2 PCB, showing its circuitry.

Data1 PCB Schematic

Data1 Schematic Diagram

Schematic diagram for the Data1 PCB, detailing its electronic components.

Digital Schematic

Digital Input/Output Circuits

Schematics for digital inputs, outputs, and processing circuits.

S-Video Schematic

S-Video Input/Output Circuits

Schematic for S-Video signal processing, selection, and buffering.

Composite Video Schematic

Composite Video Input/Output Circuits

Schematic for composite video signal processing, selection, and buffering.

Main Audio Schematic

Main Audio Input/Output Circuits

Schematic for main audio input buffering and output stage circuitry.

Multi Channel Schematic

Multi Channel Audio Input/Output Circuits

Schematic for multi-channel audio processing and I/O connections.

Amplifier Schematic

Amplifier Circuit Diagrams

Detailed schematics for the front and back amplifier channels.

Tuner Alignment Procedures

FM Alignment Procedure

Step-by-step guide for aligning the FM tuner section.

AM Alignment Procedure

Step-by-step guide for aligning the AM tuner section.

Tuner Circuit Schematic

Tuner Module Schematic

Schematic diagram of the tuner module, showing FM/AM circuitry.

RAA1 Section Schematic

RAA1 Section Circuit Diagram

Schematic of the RAA1 section, including AM antenna input.

DSP Module

DSP Module Identification

Information and identification for the DSP module's integrated circuit.

Backup Power Supply

Backup Power Supply Circuit

Schematic for the backup power supply unit and its adjustment.

Exploded View and Parts List

Product Assembly Diagram

Exploded view showing the physical assembly of the unit's components.

Replacement Parts List

A list of part numbers and descriptions for replacement components.

Repacking Instruction

Unit Repacking Procedure

Instructions and diagram for correctly repacking the unit for shipment.