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Yamaha AX-440 User Manual

Yamaha AX-440
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Yamaha AX-440 Specifications

General IconGeneral
Input Sensitivity150 mV (line)
Speaker Load Impedance4 - 16 ohms
Power Output60 W per channel (8 ohms)
Frequency Response20Hz to 20kHz
Signal-to-Noise Ratio100dB (line)
Channel Separation60 dB
OutputSpeaker outputs (A, B)

Summary

Precautions and Safety Information

Location and Ventilation Guidelines

Proper placement to avoid heat, dust, moisture, and ensure airflow for operation.

Handling, Cleaning, and Servicing

Guidelines for safe handling of the power cord, cleaning the unit, and avoiding internal servicing.

Operational Safety Warnings

Warnings on object/liquid entry, Canadian plug safety, and consulting the troubleshooting chart.

Model Specific Setup and Instructions

British Model Mains Lead Wiring

Color coding for mains lead connection to ensure correct wiring in British models.

General Model Voltage Selector Setup

Crucial step to set the voltage selector to match local power before plugging in the unit.

Front Panel Overview

Connection Diagram

Connections Guide

Connecting Speakers

How to connect speaker wires, ensuring correct polarity and wire preparation.

Connecting Turntable

Connect turntable output and ground wire to Phono jacks and GND terminal.

Connecting Tuner

Connect tuner output jacks to the amplifier's TUNER jacks.

Connecting CD and Video/Aux Inputs

Connect CD and video/aux audio outputs to their respective terminals.

Connecting Tape Decks

Details for connecting Tape Deck 1 and Tape Deck 2 Line In/Out to REC OUT/PB jacks.

AC Outlet Usage

Information on switched and unswitched AC outlets and their wattage limits.

Front Panel Control Descriptions

Power Switch and Indicator

How to turn the unit on/off and the function of the power indicator light.

Speaker and Headphone Selection

Selecting speaker systems A, B, or both, or using headphones.

Input Selector and CD Direct

Selecting program sources and the function of the CD Direct switch.

Volume, Tone, and Balance Controls

Adjusting sound level, bass, treble, and channel balance.

Phono and Loudness Controls

Phono cartridge selection and loudness compensation for low volumes.

Operating the Amplifier

Normal Listening Operation

Steps for listening to audio, including power on, speaker selection, and source selection.

Recording and Dubbing Tapes

Procedure for recording from a source onto a tape deck and performing tape dubbing.

Tape Monitoring and Construction

Using Tape MON switches for monitoring and advantages with an equalizer.

Troubleshooting Common Issues

Power and Sound Malfunctions

Solutions for no power, no sound from inputs, or no sound from one speaker.

Tone, Hum, and Howling Problems

Addressing issues like lack of bass, humming, or howling sounds during playback.

Control Bypass and Sound Cut Solutions

Explains tone control bypass and sudden sound cut due to speaker protection.

General Malfunction Advice

Advice to consult a dealer for any amplifier malfunctions not covered.

Technical Specifications

Output Power and Dynamics

Details RMS and dynamic output power per channel for various models.

Input Sensitivity and Impedance

Specifications for input sensitivity and impedance for various sources.

Tone Control and Loudness

Tone control boost/cut ranges, turnover frequencies, and loudness control characteristics.

Power Supply, Consumption, and Weight

Information on power supply voltages, consumption, and unit weight.

Circuit Diagram

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