Instruction Manual for Kenwood KR-A3070

The Kenwood KR-A3070 is a high-performance stereo receiver featuring AM/FM tuner, multiple audio inputs, speaker outputs, tone controls, and remote control capability. With 100 watts per channel output, Dolby Pro Logic surround sound, and comprehensive connectivity options, this receiver delivers exceptional audio quality for home entertainment systems. 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 Source Selection 8. Tuner Operation 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: AM/FM stereo tuner, multiple audio inputs, speaker terminals, remote control sensor, display panel, and tone controls.

Feature	Description
Power Output	100W per channel (8 ohms, 20Hz-20kHz)
Tuner Section	AM/FM stereo with 30 station presets
Audio Inputs	CD, TAPE, AUX, PHONO
Speaker Outputs	A/B speaker selection
Dolby Pro Logic	Surround sound processing
Tone Controls	Bass, Treble, Balance
Headphone Jack	For private listening
Remote Control	Full function remote included
Display	Fluorescent display with signal strength
Power Consumption	280W maximum

Installation

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

Connect speakers: Use speaker wire to connect to A/B speaker terminals.
Connect audio sources: Use appropriate cables for CD player, tape deck, turntable, or other sources.
Connect antenna: Attach FM antenna to FM 75Ω terminal and AM loop antenna to AM terminals.
Plug into AC power outlet.

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

First-Time Setup

Power on receiver; initialize system settings.

Set speaker configuration: Choose A, B, or A+B speaker output.
Program FM stations: Use auto-scan to store FM stations in memory.
Set audio preferences: Adjust bass, treble, and balance to preference.
Configure surround sound: Select Dolby Pro Logic mode if using surround speakers.

CAUTION! Ensure all connections are secure before powering on.

Specifications

Power Output: 100W + 100W (8Ω, 20Hz-20kHz)
Total Harmonic Distortion: 0.08% (1kHz)
Frequency Response: 10Hz-100kHz (+1/-3dB)
Input Sensitivity: PHONO: 2.5mV, CD/AUX: 150mV
Signal-to-Noise Ratio: PHONO: 76dB, CD/AUX: 100dB
Tuner Section: FM/AM with 30 presets
Dimensions: 440W x 150H x 370D mm
Weight: 10.5 kg
Power Requirements: AC 120V, 60Hz

Controls and Settings

Front Panel: POWER, VOLUME, INPUT SELECTOR, TONE CONTROLS, SPEAKER SELECTOR.

Remote: POWER, VOLUME, MUTE, INPUT SELECTION, TUNER CONTROLS, TONE CONTROLS.

Audio Controls: BASS (±10dB), TREBLE (±10dB), BALANCE (L/R). Speaker Selection: A, B, A+B. Input Selection: PHONO, CD, TAPE, AUX. Tuner: AUTO/MANUAL tuning, PRESET stations. Display: Signal strength, stereo indicator, input source.

Connecting Devices

Audio Sources: PHONO for turntable, CD for CD player, TAPE for cassette deck, AUX for other sources.

Turn off receiver before connecting devices.
Use appropriate cables (RCA for most sources).
Connect turntable to PHONO input only.
Select corresponding input source on front panel.

Tip: Keep audio cables away from power cords to reduce interference.

Audio Source Selection

Supports multiple audio sources with individual input optimization.

Select input: Press INPUT SELECTOR for PHONO, CD, TAPE, or AUX.
Adjust volume: Use VOLUME control; start at low level.
Fine-tune sound: Use BASS and TREBLE controls as needed.
Speaker selection: Choose A, B, or A+B speakers.
Mute: Press MUTE for temporary silence.
Headphone use: Plug headphones into front jack for private listening.

WARNING! Do not exceed maximum volume for extended periods.

Tuner Operation

AM/FM stereo tuner with 30 station presets.

Select tuner: Press TUNER input.
Tune stations: Use TUNING buttons or auto-scan.
Store presets: Tune to desired station, press and hold PRESET button.
Recall presets: Press numbered PRESET buttons.
FM stereo: MONO/STEREO switch for weak signals.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep away from moisture and heat sources.

CAUTION! Do not use liquid cleaners; avoid getting moisture into ventilation openings.

Regulatory Information

Troubleshooting

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

Reset: Unplug unit for 30 seconds to reset microprocessor.

Service: Contact authorized Kenwood service center for repairs.