kenwood ka 3020 manual

The Kenwood KA-3020 is a stereo integrated amplifier featuring 45 watts per channel, MM phono input, CD input, tuner input, tape inputs with dubbing capability, tone controls, loudness switch, speaker selector, and headphone output. Below are key sections for features, installation, operation, specifications, and troubleshooting.

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

Features at a Glance

Key components: Power amplifier section, preamplifier with tone controls, input selector, speaker selector, headphone output.

Feature	Description
Power Output	45 watts per channel into 8 ohms
Inputs	Phono (MM), CD, Tuner, Tape 1, Tape 2
Tape Dubbing	Tape 1 to Tape 2 and vice versa
Tone Controls	Bass and Treble with defeat switch
Loudness Control	Compensates for low volume listening
Speaker Selector	A/B speaker switching
Headphone Output	Standard 6.3mm jack
Power Consumption	240 watts maximum

Installation

Unpack and inspect contents. Place on stable, level surface with adequate ventilation.

Connect speakers: Use speaker wire to connect to A or B speaker terminals.
Connect source components: Use RCA cables for phono, CD, tuner inputs.
Connect tape decks: Use Tape 1 and Tape 2 inputs/outputs.
Plug into AC power outlet.

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

Operation Guide

Power on amplifier; select input source.

Input selection: Rotate INPUT SELECTOR to desired source (Phono, CD, Tuner, Tape).
Volume control: Adjust MASTER VOLUME knob to desired listening level.
Tone controls: Adjust BASS and TREBLE as needed; use TONE DEFEAT for flat response.
Loudness: Engage LOUDNESS switch for enhanced bass at low volumes.
Speaker selection: Use A/B speaker switches to select connected speakers.

CAUTION! Do not operate with volume at maximum for extended periods.

Specifications

Power Output: 45W + 45W (8 ohms, 20Hz-20kHz)
Total Harmonic Distortion: 0.07% (rated power)
Frequency Response: 10Hz-70kHz (+0, -3dB)
Input Sensitivity: Phono: 2.5mV, CD/Tuner: 150mV
Signal-to-Noise Ratio: Phono: 76dB, CD/Tuner: 100dB
Tone Control Range: Bass: ±8dB at 100Hz, Treble: ±8dB at 10kHz
Power Requirements: 120V AC, 60Hz
Dimensions: 440mm W × 130mm H × 300mm D
Weight: 7.5 kg

Controls and Functions

Front Panel: POWER switch, INPUT SELECTOR, MASTER VOLUME, BASS control, TREBLE control, TONE DEFEAT, LOUDNESS, SPEAKER A/B switches, HEADPHONE jack.

Rear Panel: AC power cord, PHONO input, CD input, TUNER input, TAPE 1 IN/OUT, TAPE 2 IN/OUT, SPEAKER terminals (A and B).

Tone Controls: Adjust bass and treble response. Loudness: Boosts low and high frequencies at low volumes. Speaker Selector: Choose between speaker sets A, B, or both.

Connecting Components

Phono: Connect turntable with MM cartridge to PHONO input. CD: Connect CD player to CD input. Tuner: Connect tuner to TUNER input. Tape: Connect tape decks to TAPE 1 and TAPE 2 inputs/outputs.

Turn off amplifier before connecting components.
Use quality RCA cables for audio connections.
Ensure proper grounding for turntable connection.
Match speaker impedance (4-16 ohms recommended).

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

Maintenance

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

CAUTION! Do not use liquid cleaners. Avoid moisture contact. Service by qualified technician only.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Speaker selection/connections	Check speaker switches; verify speaker connections; ensure volume up.
Distorted sound	Overload/connections	Reduce volume; check input levels; inspect cables for damage.
Hum or noise	Grounding/cables	Check ground connections; separate audio and power cables; clean controls.
One channel not working	Cables/balance	Swap RCA cables to isolate issue; check balance control.
No power	Power cord/outlet	Verify power cord connection; check outlet; inspect fuse.

Service: Contact authorized Kenwood service center for internal repairs.