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Marantz PM673 User Manual

Marantz PM673
107 pages
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Marantz PM673 Specifications

General IconGeneral
TypeIntegrated Amplifier
Frequency Response10Hz to 50kHz
Total harmonic distortion0.008%
Damping factor100
Input sensitivity2.5mV (MM), 200mV (line)
Signal-to-Noise Ratio86dB (MM)
Speaker load impedance4Ω - 16Ω

Summary

Amplifier Section

Test Equipment Required for Servicing

Lists necessary test equipment for servicing the Stereo Amplifier.

P.W. Boards

Details the location and mounting of printed circuit boards within the unit.

Adjustment Procedures

Details the steps for adjusting critical parameters like amplifier gain.

Circuit Description

Provides a functional description of the unit's circuit design.

Function of Digital Input/Output Pin Pins

Explains the function and type of digital input/output pins for the microprocessor.

Function of Other Pins

Details the function and type of various other pins on the microprocessor.

Distribution of Voltage for Circuit Diagrams

Shows voltage distribution for circuit diagrams of various components.

QS01

Details pin voltage information for QS01.

PL04 (VIDEO AMP)

Describes the PL04 video amplifier section.

Block Diagram

Schematic Diagram

Wiring Diagram

Component Locations

Exploded View and Parts List

Electrical Parts List

Tuner Section

Test Equipment Required for Servicing

Lists necessary test equipment for servicing the Tuner section.

Tuner Alignment Procedures

Details procedures for FM and AM tuner alignment.

Component Locations

Shows the physical locations of components on tuner boards.

Electrical Parts List

Lists electrical components used in the tuner section.

Deck Section

P.W. Boards

Lists printed circuit boards associated with the cassette deck.

Test Equipment Required for Servicing

Lists necessary test equipment for servicing the cassette deck.

Operational Descriptions of Audio and Peripheral Circuits

Describes the operations of audio and peripheral circuits in the deck section.

Mechanism Operational Description

Describes the operational states of the cassette mechanism.

Electrical Adjustments

Details various electrical adjustments required for the deck.

Playback Output Level Adjustment

Procedures for adjusting the playback output level.

Technical Specifications

Audio Section

Specifies audio output power and impedance.

FM Tuner Section

Details specifications for the FM tuner section.

MW Tuner Section

Details specifications for the MW tuner section.

LW Tuner Section

Details specifications for the LW tuner section.

General

Provides general technical specifications for the unit.

Model SD873

Technical specifications for the SD873 model.

Service Bulletin

NBR: 88-012

Service bulletin number and subject.

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