Marantz MM8003 Service Manual

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
8 Channel Power Amplifier
MM8003 /
F B/K1B/N1B/U1B
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 1
2. POWER AMPLIFIER ADJUSTMENT.................................................................................... 2
3. SERVICE MODE ................................................................................................................... 3
4. FACTORY MODE .................................................................................................................. 4
5. SYSTEM ERROR ................................................................................................................. 6
6. UPDATE FIRMWARE .......................................................................................................... 10
Update CPU's software to internal Flash-ROM ............................................................. 10
7. WIRING DIAGRAM ............................................................................................................. 17
8. BLOCK DIAGRAM .............................................................................................................. 19
9. SCHEMATIC DIAGRAM ...................................................................................................... 21
10. PARTS LOCATION .............................................................................................................. 37
11. EXPLODED VIEW AND PARTS LIST ................................................................................. 55
12. MICROPROCESSOR AND IC DATA .................................................................................. 59
13. ELECTRICAL PARTS LIST ................................................................................................. 65
14. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE .............................102
MM8003
Part no. 90M47CW855010
First Issue 2008.07
MZ
8CH POWER AMPLIFIER MM8003
POWER ON/OFF
STANDBY
MM8003

Marantz MM8003 Specifications

General

Damping factor	100
Amplifier class	-
Frequency range	8 - 100000 Hz
Input sensitivity	2400 mV
Audio output channels	7.1 channels
Peak power per channel	170 W
Signal-to-Noise Ratio (SNR)	105 dB
Total Harmonic Distortion (THD)	0.03 %
RMS power output per channel (8 Ohm)	140 W
AC (power) in	Yes
Speakon ports quantity	8
Purpose	Home
Product color	Black
Cables included	AC
Connectivity technology	Wired
Power consumption (standby)	0.4 W
Power consumption (typical)	880 W

Weight and Dimensions

Depth	384 mm
Width	440 mm
Height	184.5 mm
Weight	17900 g

Summary

Marantz Service Information

Ordering Replacement Parts

Instructions for ordering genuine Marantz replacement parts.

Critical Safety Warnings

General Safety Precautions

Emphasizes using original parts and highlights fire/shock hazards.

Service Safety Test

Procedure for a critical service test measuring unit resistance.

Technical Specifications

Power Amplifier Adjustment Procedures

Idling Current Alignment

Step-by-step guide for adjusting the idling current on the power amp boards.

Service Mode Operations

CPU Version Check and Reset

Procedures for checking CPU version and resetting the amplifier to factory settings.

Factory Mode Operation

System Error Diagnosis and Troubleshooting

Error Detection Codes (1)

Details first set of system error codes, their reasons, and check points.

Error Detection Codes (2)

Details second set of system error codes, their reasons, and check points.

Firmware Update Procedure

Update Equipment and Software

Lists necessary equipment and software for firmware updates.

CPU Software Update Process

Step-by-step instructions for updating the CPU's internal flash-ROM software.

Wiring Diagram

Block Diagram Overview

Circuit Schematic Diagrams

Parts Location Diagrams

Exploded View and Parts List

Microprocessor and IC Pin Data

Electrical Parts List

Safety Notes and Abbreviations

Key safety warnings, fusible resistor notes, and component abbreviations.

Microprocessor and Flash ROM Replacement