Marantz SR 7800 Manual

The Marantz SR 7800 is a high-performance audio/video receiver featuring Dolby Digital and DTS decoding, 100 watts per channel, 6-channel amplification, multiple audio/video inputs, digital optical/coaxial inputs, AM/FM tuner with 40 presets, remote control, on-screen display, and advanced surround sound processing. 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. Audio Setup 8. Advanced Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 6-channel amplifier, Dolby Digital/DTS decoder, AM/FM tuner, multiple audio/video inputs, remote control, on-screen display.

Feature	Description
Power Output	100 watts per channel (6 channels)
Audio Decoding	Dolby Digital, DTS, Pro Logic
Inputs	6 audio/video inputs, 2 digital optical, 1 coaxial
Tuner	AM/FM with 40 station presets
Remote Control	Full-function learning remote
On-Screen Display	Setup and operation menus
Speaker Terminals	6-channel binding posts
Headphone Jack	Front panel 1/4" stereo jack
Tone Controls	Bass, treble, balance adjustments
Surround Modes	Multiple DSP modes including Hall, Stadium, Theater

Installation

Unpack and inspect contents. Place on stable, well-ventilated surface.

Connect speakers: Use appropriate gauge speaker wire for each channel (Front L/R, Center, Surround L/R, Subwoofer).
Connect audio sources: Use audio/video inputs for CD, DVD, VCR, etc.
Connect video display: Use monitor output to TV or projector.
Connect antenna: AM loop and FM wire antennas.
Plug into AC power.

WARNING! Ensure proper ventilation; do not block vents. Use correct speaker impedance (6-16 ohms).

First-Time Setup

Power on receiver; follow on-screen setup wizard.

Speaker configuration: Set speaker sizes (Large/Small), distances, levels.
Input assignment: Assign sources to specific inputs.
Tuner setup: Auto-scan and store AM/FM stations.
Surround mode: Select default listening mode.
Test tones: Use built-in test tones for speaker level calibration.

CAUTION! Keep magnets away from CRT displays and storage media.

Specifications

Power Output: 100W x 6 (8 ohms, 20Hz-20kHz, 0.08% THD)
Frequency Response: 20Hz-20kHz (+0/-3dB)
Signal-to-Noise Ratio: 100dB (line level)
Total Harmonic Distortion: 0.08% (rated power)
Input Sensitivity: 200mV (line), 2.5mV (MM phono)
Digital Inputs: 2 optical, 1 coaxial
Video Inputs: 4 composite, 2 S-video
Power Consumption: 450W maximum
Dimensions: 17-1/8" W x 6-3/4" H x 16" D
Weight: 28.6 lbs

Controls and Settings

Front Panel: POWER, INPUT SELECT, VOLUME, TONE, HEADPHONE, SPEAKERS A/B.

Remote: POWER, INPUT SELECT, VOLUME, MUTE, SURROUND MODE, TUNER PRESETS, numeric buttons.

Audio: Bass, treble, balance, loudness, input level trim. Video: Input source selection, monitor output. Tuner: Auto/manual tuning, preset memory. System: Speaker configuration, distance settings, test tones. Surround: Mode selection (Dolby Digital, DTS, Pro Logic, DSP modes).

Connecting Devices

Audio: CD, DVD, tape deck, phono. Video: DVD player, VCR, cable/satellite box. Digital: CD/DVD players with optical/coaxial outputs.

Turn off all components before connecting.
Use high-quality cables for best performance.
Match input types (audio to audio, video to video).
Assign digital inputs in setup menu.
Select input via front panel or remote control.

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

Audio Setup

Optimize sound for your room and speakers.

Speaker levels: Use test tones and SPL meter for precise calibration.
Speaker distances: Set delay times for proper surround imaging.
Crossover: Set subwoofer crossover frequency (80Hz recommended).
Bass management: Configure Large/Small speakers appropriately.
Surround modes: Experiment with different modes for various content.
Tone controls: Adjust bass/treble to personal preference.

WARNING! Avoid extreme volume levels that could damage speakers or hearing.

Advanced Features

DSP Surround Modes: Hall, Stadium, Theater for music and movies. Learning Remote: Can be programmed to control other components. Input Renaming: Customize input labels in display. Sleep Timer: Automatic shut-off from 10-120 minutes.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth only; no liquids or chemical cleaners.

CAUTION! Do not block ventilation openings. Keep away from heat sources and moisture.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Marantz America, Inc. Dolby and DTS are registered trademarks. For support, visit www.marantz.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Speaker connections/mute	Check speaker wires; ensure mute is off; verify input selection
No picture	Video connections	Check video cables; verify monitor output; try different input
Remote not working	Batteries/obstructions	Replace batteries; point directly at IR sensor; remove obstacles
Overheating	Ventilation blocked	Ensure adequate ventilation; clear vents; check impedance match
No digital sound	Input assignment	Verify digital input assignment in setup menu; check source output

Reset: Hold TONE and SURROUND buttons while powering on for factory reset.

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