Pioneer A-447 User Manual

RPIONGER’
_ The future of sound and vision.
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STEREO AMPLIFIER
AMPLIFICATEUR STEREO
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Operating Instructions
Mode d’emploi
The illustration shows model A-447.
L’illustration motre le modéle A-447.
WARNING: To preEveENT FIRE OR SHOCK HAZARD, DO
NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
IMPORTANT NOTICE
[For U.S. and Canadian models]
The serial number for this equipment is located on the rear panel.
Please write this serial number on your enclosed warranty card and keep
it in a secure area. This is four your security.
[For Canadian model]
CAUTION: to prevent ELECTRIC SHOCK DO NOT USE
THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE
OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED
TO PREVENT BLADE EXPOSURE.
ATTENTION: pour prevenir LES CHOCS ELECTRIQUES
NE PAS UTILISER CETTE FICHE POLARISEE AVEC UN
PROLONGATEUR UNE PRISE DE COURANT OU UNE AUTRE SORTIE
DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A
FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.
IMPORTANT
LINE VOLTAGE SELECTOR SWITCH
Only multi-voltage models are provided with these switches. U.S. and
Canadian models-are not provided with the switches.
Mains voltages in Saudi Arabia are 127V and 220V orily. Never use
this model with 110V setting in Saudi Arabia.
The line voltage selector switches are on the rear panel. Before your
model is shipped from the factory, these switches are set to the power
requirements of the destination. Check that they are set properly before
plugging the power cord into the AC outlet. If the voltages are not |
properly set or if you move to an area where the voltage requirements
differ, adjust the selector switches as follows.
1. Use a medium-size screwdriver.
2. Insert the screwdriver in the groove to the voltage selector, and
adjust so that the tip of the groove points to the voltage value of
a VOLTAGE SELECTOR
10-127V TOV
240v 720
Medium-size screwdriver i=
The lightning flash with arrowhead, within an
equilateral triangle, is intended to alert the user of the
presence of uninsulated “dangerous voltage” within the
product's enclosure that may be of sufficient magni-
tude to constitute a risk of electric shock to persons.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
The exclamation point within an equilateral triangle is
intended to alert the user of the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.

Pioneer A-447 Specifications

General

Brand	Pioneer
Model	A-447
Category	Amplifier
Language	English

Summary

Important Notice

For U.S. and Canadian Models

Serial number location on rear panel for security and warranty card.

For Canadian Model

Caution to prevent electric shock with polarized plug and extension cords.

Line Voltage Selector Switch

Voltage Selector Adjustment

Instructions on how to adjust the voltage selector using a screwdriver.

Safety Instructions

General Safety Precautions

Guidelines on water, location, ventilation, heat, power sources, cord protection, polarization, and cleaning.

Appliance Handling and Servicing

Instructions for power lines, object/liquid entry, damage, and servicing.

Outdoor Antenna Grounding

Requirements for grounding outdoor antenna systems for surge protection.

Location

Installation Environment

Install in a well-ventilated area, avoiding high temperature, humidity, direct sun, or dust.

Features

Panel Facilities - Front Panel

Power Switch/Indicator

Button to turn the unit ON/OFF; indicator lights when power is on.

Speakers A Selector Switch

Switch to listen to speaker systems connected to SPEAKERS A terminals.

Panel Facilities - Front Panel Controls

Speakers B Selector Switch

Switch to listen to speaker systems connected to SPEAKERS B terminals.

REC Selector Switch

Selects recording source from TUNER, CD, TAPE, or SOURCE.

Input Selector Switch

Selects the playback source from LINE, TUNER, PHONO, or CD.

Volume Control

Adjusts playback volume and functions as a balance control.

Phono Selector Switch

Selects MM or MC cartridge type for turntable playback (A-447 only).

Muting Switch

Temporarily cuts sound volume; indicator lights when active (A-447 only).

Direct Switch/Indicator

Bypasses tone controls for flat, pure sound reproduction.

Loudness Switch/Indicator

Boosts low/high frequencies at low volumes (A-447 only).

Subsonic Filter Switch

Cuts super-low frequencies from records (A-447 only).

Panel Facilities - Tone Controls and Jacks

Treble Tone Control

Adjusts high-frequency tone; center is flat position.

Bass Tone Control

Adjusts low-frequency tone; center is flat position.

Phones Jack

For connecting headphones.

Panel Facilities - Rear Panel Connections

Phono Terminals

Connect turntable.

Adaptor Terminals

Connect adaptor components like graphic equalizers.

Line Terminals

Connect line-level audio sources.

DAT/Tape 1 Terminals

Connect DAT or Cassette decks for recording/playback.

Speakers B Terminals

Connect speaker system B (left and right channels).

Speakers A Terminals

Connect speaker system A (left and right channels).

Tape 2 Terminals

Connect Cassette deck for Tape 2 recording/playback.

CD Terminals

Connect CD player.

Tuner Terminals

Connect AM/FM tuner.

Turntable Ground Terminal

Connect turntable ground wire.

AC Outlets

Switched and unswitched outlets for connecting other equipment.

Voltage Selector

Multi-voltage selector switch for different power requirements.

Connections

Connecting Speaker Cords

Instructions for stripping wires, inserting, and tightening speaker terminals.

Speaker Impedance

Recommended speaker impedance for A/B terminals.

Connecting Input/Output Cords

How to connect RCA cables to input/output jacks.

Using Adaptor Terminals

Procedure for connecting components to adaptor terminals, including shorting bars.

AC Outlets (Switched)

Information on switched AC outlets for connected equipment.

AC Outlet (Unswitched)

Information on unswitched AC outlets for connected equipment.

Operations

Before Beginning Operations

Initial setup of controls and switches before operating the unit.

Playback Procedures

Steps for selecting playback source and adjusting volume.

Recording Tapes

How to select recording equipment and begin recording.

Monitor While Operating

Checking sound quality and recording level during tape recording.

Copying Tapes

Instructions for copying sounds from one cassette deck to another.

Playback Using a Graphic Equalizer

Adjusting sound with a graphic equalizer connected to adaptor terminals.

Troubleshooting

Troubleshooting Guide

Lists common symptoms, causes, and remedies for malfunctions.

Power-Cord Caution

Safety warnings and recommendations for handling the power cord.

Maintenance of External Surfaces

Guidelines for cleaning the unit's exterior surfaces.

Specifications

Amplifier Section - A-447

Technical specifications for the A-447 amplifier, including power output and frequency response.

Amplifier Section - A-337

Technical specifications for the A-337 amplifier, including power output and frequency response.

Power Supply/Miscellaneous

Details on power requirements, AC outlets, dimensions, and weight.