Sony TA-AX390 User Manual

SONY
3-750-168-21 (1)
negated stereo Amplifier
Operating Instructions
Before operating the unit, please read this manual thoroughly
and retain it for future reference.
Owner’s Record
The model and serial numbers are located at the rear.
Record these numbers in the spaces provided below. Refer
to them whenever you call upon your Sony dealer regarding
this product.
Model No.
To prevent fire or shock hazard, do not ex-
‘pose the unit to rain or moisture.
Serial No.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the prod-
uct’s enclosure that may be of suffi-
cient magnitude to constitute a risk of
electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature accompa-
nying the appliance.
© 1989 by Sony Corporation
Precautions
On safety
© Operate the unit only on 120 V AC, 60 Hz.
¢ Should any solid object or liquid fall into the cabinet,
unplug the unit and have it checked by qualified personnel
before operating it any further.
¢ Unplug the unit from the wail outlet if it is not to be used for
an extended period of time. To disconnect the cord, pull it
out by grasping the plug. Never pull the cord itself.
On installation
e Place the unit on a level surface.
¢ Do not install the unit near heat sources such as radiators
or air ducts, or in a place subject to direct sunlight,
excessive dust, mechanical vibration or shock.
e Good ventilation is essential to prevent internal heat build-
up in the unit. Place the unit in a location with adequate air
circulation. Do not place the unit on a soft surface.
On cleaning
Clean the cabinet periodically with a soft dry cloth. If the
stains are difficult to remove, use a cloth moistened with a
mild detergent solution. Do not use solvents such as alcohol,
benzine or thinner, since they will damage the finish.
On repacking
Do not throw away the carton and packing materials. It
makes an ideal container in which to transport the unit.
If you have any questions or problems concerning your unit
that is not covered in this manual, please consult your
nearest Sony dealer.
For detailed precautions, see the leaflet “IMPORTANT
SAFEGUARDS”.

Sony TA-AX390 Specifications

Power

power output	135 watts per channel minimum RMS power
total harmonic distortion	0.9%
power requirements	120 V AC, 60 Hz
power consumption	235 W

Audio

graphic equalizer boost/cut range 100 Hz, 330 Hz, 1 kHz, 3.3 kHz	+8 dB
graphic equalizer boost/cut range 10 kHz	+6 dB
frequency response PHONO	RIAA equalization curve
frequency response TUNER, CD, VIDEO, TAPE	30 Hz - 30 kHz +3 dB

Physical Characteristics

dimensions	Approx. 430 x 130 x 355 mm (w/h/d)
weight	Approx. 8.5 kg

Summary

Operating Instructions and Owner's Record

Owner's Record Details

Record model and serial numbers for dealer reference.

Precautions and Safety Warnings

General Safety Precautions

Operate safely, avoid liquids, unplug when unused.

Installation and Cleaning Guidelines

Proper placement, ventilation, and cleaning methods for the unit.

Front Panel Parts Identification

Front Panel Controls Overview

Identify system power, equalizer, volume, and speaker selectors.

Front Panel Connections and Sensors

Locate headphones jack and remote control sensor.

Additional Front Panel Features

Identify function selectors, DBFB, and balance controls.

Remote Commander Setup

Installing Remote Batteries

Use AA batteries and understand battery life and leakage prevention.

Remote Commander Button Functions

Overview of buttons for power, functions, and playback operations.

Listening to a Program Source

Selecting the Speaker System

Connect and select speaker systems A, B, or A+B for output.

Tape Recording Operations

Selecting Program Source for Recording

Choose a source other than TAPE for recording.

Tape Recording Steps

Playing the Program Source

Play the selected audio source before initiating recording.

Setting Tape Deck Mode for Recording

Prepare the tape deck for the recording process.

System Connections

Amplifier Connection Diagram

Visual guide for connecting components like tape decks, tuners, and speakers.

Speaker and Cable Guidelines

Notes on speaker impedance and cable types for optimal performance.

Audio Adjustments

Volume and Balance Control

Adjust sound level and relative speaker output strength.

Sound Quality Tuning with EQ and DBFB

Use DBFB and graphic equalizer for bass and tone adjustments.

Headphone Listening Setup

Connect headphones to the unit for personal listening.

Troubleshooting and Specifications

Troubleshooting Common Audio Issues

Resolve problems such as no audio, channel issues, or noise.

Technical System Specifications

Details on power output, distortion, input sensitivity, and general specs.