Marantz SR-66 User Manual

The Marantz SR-66 is a high-performance audio/video receiver featuring Dolby Digital and DTS decoding, 5.1 channel surround sound, multiple audio/video inputs, AM/FM tuner with 30 station presets, remote control, on-screen display, bass and treble controls, and various sound modes. Powered by 120V AC, 60Hz. 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/Video Operation 8. Tuner Operation 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 5.1 channel amplifier, Dolby Digital/DTS decoder, AM/FM tuner, multiple audio/video inputs, remote control, on-screen display.

Feature	Description
Power Output	80W per channel (front), 25W per channel (surround)
Audio Decoding	Dolby Digital, DTS, Pro Logic
Audio Inputs	CD, Tape, Phono, Video 1-3
Video Inputs	Composite video, S-Video
Tuner	AM/FM with 30 station presets
Remote Control	Full-function infrared remote
Speaker Terminals	Front, Center, Surround
Headphone Jack	3.5mm stereo headphone output
AC Power	120V AC, 60Hz
Dimensions	17.1" W x 6.3" H x 15.4" D

Installation

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

Connect speakers: Match polarity (+/-) for front, center, and surround channels.
Connect audio sources: Use appropriate inputs (CD, Tape, Video 1-3).
Connect video sources: Use composite or S-video inputs.
Connect antenna: AM loop and FM wire antennas included.
Plug into AC power outlet.

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

First-Time Setup

Power on receiver; follow initial setup procedure.

Set speaker configuration: Small/Large for each channel.
Set distance: Adjust speaker distance for proper delay timing.
Program tuner: Auto-scan for AM/FM stations.
Set input assignments: Configure video inputs for each source.
Test speakers: Use test tone to verify all channels working.

CAUTION! Ensure all connections are secure before powering on.

Specifications

Power Output: 80W x 2 (front), 25W x 3 (center/surround)
Frequency Response: 20Hz - 20kHz
Total Harmonic Distortion: 0.08%
Signal-to-Noise Ratio: 96dB
Input Sensitivity: 200mV
Surround Formats: Dolby Digital, DTS, Pro Logic
Tuner Section: AM/FM, 30 presets
Audio Inputs: 6 pairs (including phono)
Video Inputs: 3 composite, 2 S-video
Power Consumption: 280W

Controls and Settings

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

Remote: POWER, INPUT SELECT, VOLUME, MUTE, SURROUND MODE, TUNER PRESETS, NUMERIC KEYPAD.

Audio: BASS, TREBLE, BALANCE, LOUDNESS. Surround: DOLBY DIGITAL, DTS, PRO LOGIC, STEREO. Tuner: AM/FM SELECT, PRESET SCAN, AUTO TUNING. System: SPEAKER SETUP, DISTANCE, TEST TONE.

Connecting Devices

Audio: CD player, tape deck, turntable (phono). Video: DVD player, VCR, cable box.

Turn off receiver and devices before connecting.
Use high-quality cables for best performance.
Match audio cables to correct inputs (red/white RCA).
Connect video cables to corresponding video inputs.
Select input via INPUT SELECTOR.

Tip: Keep audio and video cables separated to reduce interference.

Audio/Video Operation

Supports various audio formats and surround modes.

Select input: Choose source (CD, Video 1-3, etc.).
Adjust volume: Use VOLUME control.
Select surround mode: Choose Dolby Digital, DTS, or Pro Logic.
Adjust tone: Use BASS and TREBLE controls.
Mute audio: Press MUTE for temporary silence.
Headphone use: Plug into front panel jack.

WARNING! Do not operate at maximum volume for extended periods.

Tuner Operation

AM/FM tuner with 30 station presets.

Select band: Choose AM or FM.
Tune stations: Use manual tuning or auto-scan.
Store presets: Hold MEMORY button, select preset number.
Recall presets: Use numeric keys or PRESET buttons.
Mono/stereo: FM stereo indicator shows stereo reception.

Tip: Position FM antenna for best reception.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for exterior. Use compressed air for vents.

CAUTION! Do not use liquid cleaners. Keep away from moisture and heat sources.

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, contact authorized Marantz service centers or visit www.marantz.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power cord connection; verify outlet working.
No sound	Speaker connections/mute	Check speaker wires; ensure not muted; verify input selection.
Distorted sound	Volume level/speakers	Reduce volume; check speaker impedance compatibility.
Poor FM reception	Antenna placement	Reposition FM antenna; ensure proper connection.
Remote not working	Batteries/obstacles	Replace batteries; ensure clear path to IR sensor.

Reset: Disconnect power for 30 seconds to reset microprocessor.

Service: Contact authorized Marantz service center for repairs.