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Marantz PM7000/N1G - User Manual

Marantz PM7000/N1G
29 pages
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Integrated amplifier
TABLE OF CONTENTS
SECTION PAGE
1. SPECIFICATIONS ...................................................................................................................................... 1
2. TEST EQUIPMENT REQUIRED SERVICING ........................................................................................... 2
3. IC INFORMATIONS.................................................................................................................................... 3
4. BLOCK DIAGRAM ...................................................................................................................................... 5
5. WIRING DIAGRAM..................................................................................................................................... 7
6. SCHEMATIC DIAGRAM AND PARTS LOCATION (PARTS SIDE) ........................................................... 9
7. EXPLODED VIEW AND PARTS LIST ...................................................................................................... 33
8. IDLING CURRENT AND DC OFFSET VOLTAGE ALIGNMENT ............................................................. 34
9. ELECTRICAL PARTS LIST ...................................................................................................................... 35
Service
Manual
PM7000 /N1B, /N1G, /U1B
PM8000 /N1B, /N1G, /F1B, /F1N
Please use this service manual with referring to the user guide (D.F.U) without fail.
R
- PM7000 / PM8000 -
276W855010 ACT
3120 785 22011
First Issue:1999.09
PM7000/8000
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Summary

Marantz Design and Service Information

Ordering Parts Information

Provides guidelines and contact details for ordering replacement Marantz parts.

Amplifier Specifications

Power Output and Dynamic Performance

Details power output ratings, IHF dynamic power, and distortion specifications.

Input Sensitivity and Frequency Response

Lists input sensitivity, impedance, frequency response, and tone control characteristics.

General Unit Specifications

Covers power requirements, dimensions, weight, and included accessories.

Servicing Test Equipment

Required Test Equipment List

Lists essential test equipment and their functions for servicing the unit.

Integrated Circuit Information

Microprocessor Block Diagram and Pinout

Diagram of the TMP47C200BM microprocessor and its pin assignments.

Schematic Diagrams and Parts Location

Function, Tape In;Out, and Power Circuit Schematics

Schematics for input switching, tape functions, and the power supply section.

Front and Main Circuit Schematics

Diagrams illustrating the front panel controls, main signal path, and tone control circuits.

Speaker Switch, Encoder, and Volume Circuit Schematics

Schematics for speaker selection, rotary encoder, and motorized volume control.

Board-Level Schematics Overview

Assembly drawings for Tone, Front, and Speaker Switch boards.

Volume and Main;SP Protect Board Schematics

Schematics for the volume control and main/speaker protection boards.

Exploded View and Parts Identification

Exploded View of Unit Components

Visual representation of the unit's internal and external parts for identification.

Current and Offset Voltage Alignment

Class AB Quiescent Current Adjustment

Procedure to adjust quiescent current for Class AB amplifier operation.

Class A Quiescent Current Adjustment

Procedure to adjust quiescent current for Class A amplifier operation.

DC Offset Voltage Adjustment

Steps to adjust DC offset voltage at the speaker output terminals.

Electrical Parts List

Common Parts Codes and Safety Information

Lists common part codes, safety warnings, and abbreviations used in the manual.

Circuit Board Component Listings

Detailed parts lists for various circuit boards, including resistors, capacitors, and semiconductors.

Summary

Marantz Design and Service Information

Ordering Parts Information

Provides guidelines and contact details for ordering replacement Marantz parts.

Amplifier Specifications

Power Output and Dynamic Performance

Details power output ratings, IHF dynamic power, and distortion specifications.

Input Sensitivity and Frequency Response

Lists input sensitivity, impedance, frequency response, and tone control characteristics.

General Unit Specifications

Covers power requirements, dimensions, weight, and included accessories.

Servicing Test Equipment

Required Test Equipment List

Lists essential test equipment and their functions for servicing the unit.

Integrated Circuit Information

Microprocessor Block Diagram and Pinout

Diagram of the TMP47C200BM microprocessor and its pin assignments.

Schematic Diagrams and Parts Location

Function, Tape In;Out, and Power Circuit Schematics

Schematics for input switching, tape functions, and the power supply section.

Front and Main Circuit Schematics

Diagrams illustrating the front panel controls, main signal path, and tone control circuits.

Speaker Switch, Encoder, and Volume Circuit Schematics

Schematics for speaker selection, rotary encoder, and motorized volume control.

Board-Level Schematics Overview

Assembly drawings for Tone, Front, and Speaker Switch boards.

Volume and Main;SP Protect Board Schematics

Schematics for the volume control and main/speaker protection boards.

Exploded View and Parts Identification

Exploded View of Unit Components

Visual representation of the unit's internal and external parts for identification.

Current and Offset Voltage Alignment

Class AB Quiescent Current Adjustment

Procedure to adjust quiescent current for Class AB amplifier operation.

Class A Quiescent Current Adjustment

Procedure to adjust quiescent current for Class A amplifier operation.

DC Offset Voltage Adjustment

Steps to adjust DC offset voltage at the speaker output terminals.

Electrical Parts List

Common Parts Codes and Safety Information

Lists common part codes, safety warnings, and abbreviations used in the manual.

Circuit Board Component Listings

Detailed parts lists for various circuit boards, including resistors, capacitors, and semiconductors.

Marantz PM7000/N1G Specifications

General IconGeneral
Channels2
Output Power (8 ohms)60 W
Output Power (4 ohms)80 W
Frequency Response5 Hz - 100 kHz
Analog Inputs4
Subwoofer OutputYes
Headphone OutputYes
Streaming ServicesNo
Wi-FiNo
EthernetNo
Input Sensitivity200 mV
Damping Factor100
Input Impedance47 kΩ
Total Harmonic Distortion (THD)0.02%
DAC ChipAKM
Digital InputsOptical, Coaxial
Phono InputYes (MM)
Dimensions440 x 370 x 105 mm

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