Marantz 2010 Owners Manual

The Marantz 2010 is a classic stereo receiver featuring 20 watts per channel, built-in AM/FM tuner, phono input for turntables, tape monitor, loudness contour, and tone controls. This high-fidelity audio component delivers exceptional sound quality with Marantz's signature warm sound signature. Below are key sections for features, installation, operation, specifications, and maintenance.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Components 7. Tuner Operation 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Stereo amplifier, AM/FM tuner, phono preamp, tone controls, speaker outputs.

Feature	Description
Power Output	20 watts per channel RMS at 8 ohms
Tuner Section	AM/FM stereo with signal strength meter
Phono Input	MM cartridge compatible with RIAA equalization
Tape Monitor	Dedicated tape input/output with monitor function
Tone Controls	Bass and treble adjustment with loudness contour
Speaker Outputs	Main speaker terminals for A/B speaker selection
Headphone Jack	Front panel 1/4" stereo headphone output
Input Selector	Phono, Aux, Tape 1, Tape 2 source selection
Volume Control	Stepped attenuator for precise level adjustment
Power Switch	Main power on/off with indicator light

Installation

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

Connect speakers: Use speaker wire to connect to MAIN SPEAKERS terminals.
Connect turntable: Use PHONO input for magnetic cartridge turntables.
Connect other sources: Use AUX input for CD players, tape decks, etc.
Connect antenna: Attach FM dipole antenna and AM loop antenna.
Plug into AC power outlet.

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

First-Time Setup

Power on receiver; allow 30 seconds for warm-up.

Set input selector: Rotate to desired source (Phono, Aux, Tape).
Adjust volume: Start with volume at minimum, gradually increase.
Tune FM stations: Use tuning knob and signal meter for best reception.
Set tone controls: Adjust bass and treble to personal preference.
Engage loudness: Use loudness switch for better low-volume listening.

CAUTION! Do not operate without proper load on speaker outputs.

Specifications

Power Output: 20 watts per channel RMS (8 ohms)
Frequency Response: 20Hz-20kHz ±1dB
Total Harmonic Distortion: 0.3% at rated power
Input Sensitivity: Phono: 2.5mV, Aux: 150mV
Signal-to-Noise Ratio: Phono: 70dB, Aux: 80dB
Tone Controls: Bass: ±10dB at 100Hz, Treble: ±10dB at 10kHz
Power Requirements: 120V AC, 60Hz, 70 watts
Dimensions: 17" W × 4.5" H × 12" D
Weight: 18 lbs

Controls and Settings

Front Panel: Power switch, Input selector, Volume, Balance, Tone controls, Loudness, Speaker selectors.

Rear Panel: Speaker terminals, Input jacks, Tape monitor, Antenna terminals, AC cord.

Input Selection: Phono (turntable), Aux (CD/tuner), Tape 1, Tape 2. Tone Controls: Bass and treble with center detent. Loudness: Compensates for Fletcher-Munson curves. Balance: Adjusts left/right channel balance. Speaker Selectors: Main A/B speaker switching.

Connecting Components

Speaker connections: Use 16-gauge or larger speaker wire. Source connections: RCA cables for audio inputs.

Turn off power before making connections.
Connect speakers observing proper polarity (+/-).
Use PHONO input only for turntables with magnetic cartridges.
Connect FM antenna to 300-ohm terminals.
Use TAPE MONITOR for external processors or recording.

Tip: Keep signal cables away from power cords to minimize hum.

Tuner Operation

AM/FM stereo tuner with tuning meter and stereo indicator.

Select FM or AM band using function selector.
Rotate tuning knob while watching signal strength meter.
Fine-tune for strongest signal and minimum distortion.
Stereo indicator lights when receiving stereo FM broadcast.
Use AFC (Automatic Frequency Control) for stable FM reception.
For AM, rotate antenna for best reception.

WARNING! Do not touch antenna terminals while powered on.

Maintenance

Keep unit clean and dust-free. Use soft, dry cloth for exterior cleaning.

CAUTION! Unplug before cleaning. Do not use liquid cleaners. Have serviced by qualified technician only.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. UL listed for safety. Manufactured to Marantz quality standards. For service, contact authorized Marantz service center. This product may be covered by one or more U.S. patents.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Speaker connections/input selection	Check speaker wires; verify input selector position; check volume.
Hum or buzz	Grounding issues/cable placement	Ensure proper grounding; separate signal and power cables.
Weak FM reception	Antenna placement/damage	Reposition FM antenna; check for damaged antenna wires.
Distorted sound	Overload/clipping	Reduce volume; check source level; verify speaker impedance.
One channel dead	Connection/balance control	Check RCA cables; adjust balance control; test speakers.

Service: Contact authorized Marantz service center for internal repairs.

Support: Consult qualified audio technician for technical assistance.