Marantz PM 40 Manual

The Marantz PM 40 is a high-quality stereo integrated amplifier featuring 40 watts per channel, MM phono input, multiple line inputs, tape monitoring, tone controls, headphone output, and remote control capability. Designed for audiophile-grade performance with Marantz's signature sound quality and build quality. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operation Guide 8. Advanced Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Stereo integrated amplifier, Remote Control, MM phono input, multiple line inputs, tape monitor, tone controls, headphone output.

Feature	Description
Power Output	40 watts per channel into 8 ohms
Phono Input	MM (Moving Magnet) cartridge compatible
Line Inputs	Multiple inputs for CD, Tuner, Aux, Tape
Tape Monitor	Dedicated tape input/output with monitoring
Tone Controls	Bass and treble adjustment
Headphone Output	Front panel 1/4" headphone jack
Speaker Terminals	High-quality binding posts
Power Switch	Front panel power on/off
Volume Control	Motorized volume knob
Input Selector	Source selection rotary switch

Installation

Unpack and inspect contents. Place on stable, level surface with adequate ventilation.

Connect speakers: Use high-quality speaker cable to speaker terminals.
Connect audio sources: Use appropriate cables for phono, CD player, tuner, etc.
Connect tape deck: Use tape input/output for recording and monitoring.
Plug into AC power outlet.

WARNING! Ensure proper ventilation; do not block ventilation openings. Use correct speaker impedance.

First-Time Setup

Power on amplifier; verify all connections are secure.

Set input selector: Rotate to desired source (Phono, CD, Tuner, etc.).
Adjust volume: Start with volume at minimum, gradually increase.
Set tone controls: Begin with flat response (12 o'clock position).
Test all inputs: Verify each source is working properly.

CAUTION! Always turn volume to minimum before powering on or changing sources.

Specifications

Power Output: 40W + 40W (8 ohms, 20Hz-20kHz)
Total Harmonic Distortion: 0.02% (20Hz-20kHz)
Frequency Response: 10Hz-50kHz (+0/-3dB)
Input Sensitivity: Phono: 2.5mV, Line: 150mV
Signal-to-Noise Ratio: Phono: 80dB, Line: 100dB
Tone Controls: Bass: ±10dB at 100Hz, Treble: ±10dB at 10kHz
Power Requirements: 120V AC, 60Hz, 200W
Dimensions: 440mm (W) x 125mm (H) x 345mm (D)
Weight: 8.5 kg

Controls and Settings

Front Panel: Power switch, Input selector, Volume control, Tone controls, Headphone jack, Tape monitor.

Rear Panel: Speaker terminals, Phono input, Line inputs, Tape input/output, AC power cord.

Input Selection: Phono, CD, Tuner, Aux, Tape. Tone Controls: Bass and treble adjustment. Tape Monitor: Allows monitoring of tape recording. Headphone Output: Automatically mutes speakers when headphones are connected.

Connecting Devices

Phono: Connect turntable with MM cartridge. Line Inputs: Connect CD player, tuner, etc. Tape: Connect tape deck for recording/monitoring.

Turn off amplifier before making connections.
Use high-quality interconnects for best performance.
Ensure proper grounding for phono input.
Connect speakers with correct polarity.

Tip: Keep signal cables away from power cables to minimize interference.

Operation Guide

Basic operation procedures for optimal performance.

Power on: Turn on power switch; wait for stabilization.
Select source: Rotate input selector to desired input.
Adjust volume: Use volume control to desired listening level.
Tone adjustment: Use bass and treble controls as needed.
Tape monitoring: Engage tape monitor to listen to tape playback.
Headphone use: Plug headphones into front jack.

WARNING! Do not operate with covers removed. Avoid excessive volume levels.

Advanced Features

Phono Stage: High-quality MM phono preamplifier. Tape Monitoring: Real-time monitoring of tape recordings. Tone Defeat: Bypass tone controls for pure signal path.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep away from moisture and extreme temperatures.

CAUTION! Do not use chemical cleaners. Ensure proper ventilation during operation.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Marantz; all rights reserved. For technical support, contact authorized Marantz service centers or visit www.marantz.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Volume/connections	Check volume setting; verify speaker connections; ensure input selected.
Distorted sound	Overload/speakers	Reduce volume; check speaker impedance; verify source level.
Hum or noise	Grounding/cables	Check ground connections; separate signal and power cables; verify phono ground.
One channel silent	Balance/connections	Check balance control; verify cable connections; test with different source.
No phono input	Cartridge/ground	Verify MM cartridge; check phono ground connection; ensure proper cabling.

Reset: Power cycle amplifier if issues persist.

Service: Contact authorized Marantz service center for repairs.