kenwood 480hx manual

The Kenwood 480HX is a high-performance audio receiver featuring advanced audio processing, multiple input/output options, digital tuning, and comprehensive connectivity for home audio systems. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Digital audio processor, multiple input/output ports, remote control, LCD display, tuning dial, and speaker terminals.

Feature	Description
Power Output	80 watts per channel at 8 ohms
Input Ports	RCA audio inputs, phono input, digital optical input
Output Ports	Speaker terminals, headphone jack, tape output
Tuning System	Digital quartz PLL synthesizer tuning
Frequency Response	10Hz - 100kHz
Signal-to-Noise Ratio	106 dB
Remote Control	Full-function infrared remote included
Display	Fluorescent display with station frequency and audio information
Tone Controls	Bass, treble, and balance adjustments
Power Requirements	120V AC, 60Hz

Installation

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

1. Connect speakers: Use speaker wire to connect to A/B speaker terminals.
2. Connect audio sources: Use RCA cables for CD player, tape deck, or turntable.
3. Connect antenna: Attach FM/AM antenna for radio reception.
4. Plug into AC power outlet.

WARNING! Ensure proper ventilation around unit. Do not block ventilation openings.

First-Time Setup

Power on receiver; initialize system settings.

1. Set input source: Select appropriate input for connected devices.
2. Tune radio stations: Use auto-tune or manual tuning to preset stations.
3. Adjust audio settings: Set bass, treble, and balance to preference.
4. Configure speaker setup: Select A/B speakers or both.

CAUTION! Ensure all connections are secure before powering on.

Specifications

• Power Output: 80W + 80W (8 ohms, 20Hz-20kHz)
• Total Harmonic Distortion: 0.07%
• Input Sensitivity: 200mV (line), 2.5mV (phono)
• FM Sensitivity: 10.8 dBf
• AM Sensitivity: 300 μV/m
• Dimensions: 440mm W × 150mm H × 380mm D
• Weight: 11.5 kg
• Power Consumption: 240W
• Operating Temperature: +5°C to +35°C

Controls and Settings

Front Panel: POWER, VOLUME, INPUT SELECTOR, TUNING KNOB, BASS/TREBLE controls.

Remote: POWER, VOLUME, MUTE, INPUT SELECTION, TUNING, PRESET buttons.

Audio Controls: Bass (±10dB), Treble (±10dB), Balance (L/R adjustment). Input Selection: Phono, CD, Tape, Tuner, Aux. Tuner: Manual/Auto tuning, 30 station presets. Speaker Selection: A, B, A+B, Off.

Connecting Devices

Audio Inputs: Phono, CD, Tape, Aux. Outputs: Speakers, headphones, tape record.

1. Turn off receiver before connecting devices.
2. Match cable colors to input jacks (red/white RCA).
3. Connect speakers observing correct polarity (+/-).
4. Select appropriate input source after connection.

Tip: Use high-quality cables for best audio performance.

Audio Operation

Supports various audio sources including phono, CD, tape, and radio.

1. Select input: Choose corresponding input source.
2. Adjust volume: Use volume knob or remote control.
3. Tone adjustment: Set bass and treble to preference.
4. Radio operation: Tune to desired station and save presets.
5. Headphone use: Plug headphones into front panel jack.
6. Tape monitoring: Use tape monitor for recording/playback.

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

Advanced Features

Loudness Control: Enhances bass at low volumes. Speaker A/B Selection: Operate multiple speaker pairs. Tape Dubbing: Copy between tape decks. Tuner Presets: Store up to 30 FM/AM stations.

Care & Cleaning

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

CAUTION! Do not use chemical cleaners. Avoid liquid contact with controls.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Manufactured under ISO 9001 quality standards. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; ensure outlet is working.
No sound	Speaker connections/volume	Verify speaker wires; check volume level; ensure mute is off.
Poor radio reception	Antenna connection	Ensure antenna is properly connected and positioned.
Distorted sound	Input level/speakers	Reduce input level; check speaker impedance matching.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear path to IR sensor.

Reset: Disconnect power for 30 seconds to reset microprocessor.

Service: Contact authorized Kenwood service center for repairs.