Marantz SR 940 Manual

The Marantz SR 940 is a high-performance AV receiver featuring Dolby Digital and DTS decoding, 7-channel amplification, multi-room audio capability, AM/FM tuner with 40 presets, comprehensive input/output options including digital audio inputs, component video switching, and advanced audio processing. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: 7-channel amplifier, Dolby Digital/DTS decoder, AM/FM tuner, remote control, multi-room audio capability, comprehensive input/output panel.

Feature	Description
Power Output	100W per channel (8 ohms, 20Hz-20kHz)
Audio Decoding	Dolby Digital, DTS, Pro Logic
Inputs	6 analog audio, 3 digital optical, 2 digital coaxial
Video Inputs	3 composite video, 2 S-video, 2 component video
Tuner	AM/FM with 40 station presets
Multi-room	Zone 2 audio output capability
Remote Control	Learning remote with macro functions
Setup Memory	Store multiple configuration settings
Display	Fluorescent display with dimmer control
Protection Circuit	Overload, short circuit, thermal protection

Installation

Unpack and inspect contents. Place in well-ventilated area.

1. Connect speakers: Match polarity (+/-) for all channels.
2. Connect audio sources: Use appropriate analog/digital inputs.
3. Connect video sources: Use composite, S-video, or component inputs.
4. Connect antenna: AM loop and FM wire antennas included.
5. Plug into AC power outlet.

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

First-Time Setup

Power on receiver; follow on-screen display prompts.

1. Speaker configuration: Set speaker sizes and distances.
2. Input assignment: Assign sources to specific inputs.
3. Tuner setup: Auto-scan and store radio stations.
4. Audio calibration: Use test tones for level matching.
5. Remote programming: Set up remote for other components.

CAUTION! Disconnect power before making connections. Ensure all connections are secure.

Specifications

• Power Output: 100W x 7 (8 ohms, 20Hz-20kHz)
• Frequency Response: 10Hz-100kHz (+1/-3dB)
• Total Harmonic Distortion: 0.05% (rated power)
• Signal-to-Noise Ratio: 100dB (line level)
• Input Sensitivity: 200mV (line), 800mV (digital)
• Digital Inputs: 3 optical, 2 coaxial
• Video Bandwidth: 10MHz (component video)
• Tuner Sensitivity: 1.0μV (FM mono)
• Power Consumption: 550W maximum
• Dimensions: 440mm W x 425mm D x 171mm H

Controls and Settings

Front Panel: POWER, INPUT SELECT, VOLUME, TONE, HEADPHONE, DISPLAY.

Remote: POWER, INPUT SELECT, VOLUME, MUTE, SURROUND MODE, TONE, SETUP, Numeric keys, Transport controls.

Audio Settings: Bass, Treble, Balance, Loudness, Surround modes (Dolby Digital, DTS, Pro Logic). Video Settings: Input selection, output resolution. Tuner: Preset memory, auto scan. System: Speaker configuration, delay settings, test tones.

Connecting Devices

Audio: Analog/digital inputs. Video: Composite/S-video/component. Speakers: 7-channel outputs.

1. Turn off receiver before making connections.
2. Match cable types to appropriate inputs.
3. Use high-quality cables for best performance.
4. Connect speakers ensuring correct polarity.
5. Select input via INPUT SELECTOR.

Tip: Use digital connections for best audio quality from digital sources.

Audio Setup and Calibration

Optimize sound for your listening environment.

1. Speaker configuration: Set size (large/small) for each channel.
2. Distance settings: Input speaker distances from listening position.
3. Level calibration: Use built-in test tones and SPL meter.
4. Crossover settings: Set appropriate frequencies for small speakers.
5. Surround mode selection: Choose appropriate decoding mode.
6. EQ adjustments: Fine-tune frequency response if needed.

WARNING! Avoid extreme volume levels during calibration to prevent hearing damage.

Multi-Room Operation

Zone 2 functionality for second room audio.

1. Connect Zone 2 speakers to dedicated terminals.
2. Select Zone 2 source from main unit or remote.
3. Adjust Zone 2 volume independently.
4. Use remote extender for IR control in second room.

Note: Zone 2 operates in stereo only from analog sources.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep ventilation openings clear.

CAUTION! Do not use liquid cleaners or aerosols. Avoid moisture and extreme temperatures.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Manufactured under license from Dolby Laboratories. DTS and DTS Digital Surround are registered trademarks. For support, visit www.marantz.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; ensure outlet works; check fuse.
No sound	Input selection/speakers	Verify input selection; check speaker connections; volume level.
Distorted sound	Source/overload	Check source material; reduce volume; verify speaker impedance.
Remote not working	Batteries/obstruction	Replace batteries; ensure line of sight to sensor; check mode.
No video	Connections/input	Verify video connections; check input selection; source power.
Overheating	Ventilation	Ensure adequate ventilation; clear obstructions; reduce volume.

Reset: Disconnect power for 5 minutes, then reconnect.

Service: Contact authorized Marantz service center; www.marantz.com