Marantz MM9000/U1B User Manual

Power Amplifier
MM9000
310J855010 MIT
3120 785 22220
First Issue 1999.11
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ................................................................................................................. 1
2. IC DATA ...................................................................................................................................................... 1
3. BLOCK DIAGRAM ....................................................................................................................................... 2
4. WIRING DIAGRAM ..................................................................................................................................... 3
4. SCHEMATIC DIAGRAM .............................................................................................................................. 5
6. PARTS LOCATION (Pattern Side) ............................................................................................................ 10
7. EXPLODED VIEW AND PARTS LIST ....................................................................................................... 19
8. ELECTRICAL ADJUSTMENT ................................................................................................................... 23
9. TECHNICAL DESCRIPTION ..................................................................................................................... 25
10. ELECTRICAL PARTS LIST ....................................................................................................................... 26
Service
Manual
MM9000 /K1G, /N1G, /S1G
/N1B, /U1B
R
M
MM9000
Printed in Japan
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
FRONT L CENTER RONT R
POWER
SURR L
PEAK
ST NDBY
SURR R
ON OFF
5CH POWER AMPL F ER MM9000
All manuals and user guides at all-guides.com
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Marantz MM9000/U1B Specifications

General

Total Harmonic Distortion (THD)	0.03%
Channels	5
Signal-to-Noise Ratio	105 dB
Input Sensitivity	1.2 V
Frequency Response	5 Hz - 100 kHz
Input Impedance	47 kOhms

Summary

Introduction to Marantz Service

Marantz Design and Service Philosophy

Discusses quality components and design for ultimate sound.

Technical Specifications

Product Specifications Overview

Lists power output, impedance, frequency response, and dimensions.

Integrated Circuit Data

Provides pinout and function details for the TMP47C101 IC.

Block Diagram

Wiring Diagram

Schematic Diagram

Parts Location

Exploded View and Parts List

Electrical Adjustments

DC Offset Adjustment

Steps to set output DC voltage to minimize speaker damage.

Idling Current Adjustment

Steps to set quiescent current for amplifier bias.

Thermostat Circuit Confirmation

Verifies the correct operation of the thermal protection circuit.

Cooling Fan Confirmation

Checks the functionality of the cooling fan system.

Technical Description

Peak Detector Circuit Explanation

Details the operation of the peak detection circuit.

Electrical Parts List and Safety

Component Parts Listing

Comprehensive list of all electronic components with part numbers.

Safety Precautions and Warnings

Critical safety warnings and notes on using original parts.

Abbreviations and Marks Glossary

Defines common abbreviations and symbols used in the manual.