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Marantz 4100 User Manual

Marantz 4100
27 pages
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Marantz 4100 Specifications

General IconGeneral
TypeStereo Amplifier
Power Output30 watts per channel into 8Ω (stereo)
Frequency Response10Hz to 60kHz
Total Harmonic Distortion0.1%
Damping factor50
Input Sensitivity1.8mV (MM), 180mV (line)
Signal to noise ratio76dB (MM), 86dB (line)
Speaker load impedance4Ω to 16Ω
Dimensions17.5 x 14.5 x 5.5 inches
Weight10.5kg
Channel Separation50 dB

Summary

Service Notes

Selector Switch

Mode Switch

Vari-Matrix Position

How 2-channel stereo input signals are converted into quadraphonic signals.

SQ Decoder Position

Decoding compatible stereo-quadraphonic records using the SQA-1 adapter.

Pre-Amplifier

Balance Control

Main Amplifier

BTL Connection

Power Supply Unit

Trouble Analysis

Excessive line consumption

Checks for shorted components and faulty rectifiers causing high power draw.

No line consumption or zero bias

Checks for shorted L001 and open rectifiers causing no operation.

Excessive hum and noise

Checks filter capacitors and related components for noise issues.

Parasitic oscillation

Checks for defective capacitors potentially causing oscillations.

Power Amplifier Adjustment

Power Supply Adjustment

Meter Adjustment

Phono Amplifier Adjustment

Test Equipment Required for Servicing

Performance Verification

Preliminary Procedures

Initial setup steps and checks before performing performance verification.

Total Hum and Noise Test

Procedure to test for and measure hum and noise levels.

Maximum Power Output

Procedure to measure the maximum power output of the amplifier.

Harmonic Distortion Test

Procedure to measure the harmonic distortion levels.

Channel Separation

Technical Specifications

Audio Section

Specifications related to audio input, output, and frequency response.

General

Specifications for power requirements, consumption, dimensions, and weight.

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