marantz 19 manual

The Marantz 19 is a classic stereo receiver from the 1970s featuring AM/FM stereo reception, 19 watts per channel RMS power, precision tuning meter, loudness contour, tape monitor, headphone jack, and multiple audio inputs. Below are key sections for features, installation, operation, specifications, and maintenance.

1. Features at a Glance 2. Installation 3. Operation 4. Specifications 5. Controls and Functions 6. Connecting Components 7. Tuning and Reception 8. Maintenance 9. Troubleshooting

Features at a Glance

Key components: AM/FM stereo tuner, power amplifier, tuning meter, speaker outputs, tape monitor, headphone jack.

Feature	Description
Power Output	19 watts per channel RMS into 8 ohms
Tuning Meter	Precision signal strength and center tuning indicator
Loudness Contour	Compensates for low volume listening
Tape Monitor	Allows tape recording and playback
Headphone Jack	For private listening
Speaker Selector	Switch between main and remote speakers
Input Selector	Phono, Aux, Tape
Bass/Treble Controls	Separate tone controls
Balance Control	Left/right channel balance adjustment
Power Switch	Main power on/off

Installation

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

Connect speakers: Use speaker wire to connect to main speaker terminals.
Connect antenna: Attach FM dipole antenna to FM terminals; AM loop antenna to AM terminals.
Connect audio sources: Phono for turntable, Aux for CD player, Tape for tape deck.
Plug into AC power outlet.

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

Operation

Power on receiver; select input source.

Select input: Choose Phono, Aux, or Tape using input selector.
Adjust volume: Start at low volume and increase gradually.
Tune radio: Select AM or FM band; use tuning knob for station selection.
Adjust tone: Use bass and treble controls to suit listening preference.
Use loudness: Engage loudness contour for low volume listening.

CAUTION! Avoid excessive volume levels to prevent speaker damage.

Specifications

Power Output: 19 watts per channel RMS at 8 ohms
Frequency Response: 20Hz - 20kHz ±1dB
Total Harmonic Distortion: Less than 0.5% at rated power
Input Sensitivity: Phono: 2.5mV, Aux: 150mV
Signal-to-Noise Ratio: Phono: 65dB, Aux: 80dB
Tuning Range: FM 88-108MHz, AM 530-1600kHz
Power Requirements: 120V AC, 60Hz
Dimensions: Standard 1970s receiver size
Weight: Approximately 15 lbs

Controls and Functions

Front Panel: Power switch, input selector, volume, balance, bass, treble, loudness, tuning knob, tuning meter.

Rear Panel: Speaker terminals, antenna connections, phono/aux/tape inputs, AC power cord.

Input Selection: Phono (magnetic cartridge), Aux (high-level sources), Tape (tape deck). Tone Controls: Separate bass and treble adjustment. Loudness: Compensates for Fletcher-Munson curves. Tuning Meter: Shows signal strength and center tuning.

Connecting Components

Speakers: Main speaker terminals. Antenna: FM dipole and AM loop. Audio Sources: Phono, Aux, Tape inputs.

Turn off power before making connections.
Connect speakers observing correct polarity.
Position FM antenna for best reception.
Use proper cables for audio sources.

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

Tuning and Reception

FM stereo reception with tuning meter guidance.

Select FM band on function selector.
Rotate tuning knob while watching tuning meter.
Center needle for strongest signal and minimum distortion.
Stereo light indicates stereo broadcast reception.
For AM: Rotate AM loop antenna for best reception.

WARNING! Do not force tuning knob; turn gently.

Maintenance

Unplug before cleaning. Use soft dry cloth for exterior; compressed air for dust removal.

CAUTION! Do not use liquids or solvents. Professional service recommended for internal cleaning.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Power/speakers	Check power connection; verify speaker connections; ensure volume up.
Poor FM reception	Antenna placement	Reposition FM antenna; check connections.
Hum or noise	Grounding/cables	Check ground connections; separate signal and power cables.
One channel dead	Balance/speaker	Check balance control; test speaker on other channel.
Distorted sound	Overload/damage	Reduce volume; check for damaged speakers.

Service: Consult qualified technician for internal repairs.