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Pioneer A-303 User Manual

Pioneer A-303
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©
PIONEER’
The
Art
of
Entertainment
A-403
Operating
Instructions
Manual
de
instrucciones
REY
A-303
SPARE
PARTS
MASTER
STEREO
AMPLIFIER
AMPLIFICADOR
ESTEREOFONICO
UBRRABR
WARNING:
to
prevent
FIRE
OR
SHOCK
HAZARD,
DO
NOT
EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE.
Thank
you
for
buying
this
Pioneer
product.
Please
read
through
these
operating
instructions
so
you
will
know
how
to
operate
your
model
properly.
After
you
have
finished
reading
the
instructions,
put
them
away
in
a
safe
place
for
future
reference.
in
some
countries
or
regions,
the
shape
of
the
power
plug
and
power
outlet
may
sometimes
differ
from
that
shown
in
the
explanatory
drawings.
However,
the
method
of
connecting
and
operating
the
unit
is
the
same.
LINE
VOLTAGE
SELECTOR
SWITCH
Only
multi-voltage
models
are
provided
with
this
switch.
US.,
Canadian,
European,
U.K.,
and
Australian
models
are
not
provided
with
this
switch.
Main
voitages
in
Saudi
Arabia
are
127
V
and
220
V
only.
Never
use
this
model
with
110
V
setting
in
Saudi
Arabia.
The
line
voltage
selector
switch
is
on
the
rear
panel.
Before
your
model
is
shipped
from
the
factory,
this
switch
is
set
to
the
power
requirements
of
the
destination.
Check
that
it
is
set
properly
before
plugging
the
power
cord
into
the
AC
wail
socket.
If
the
voltage
is
not
properly
set
or
if
you
move
to
an
area
where
the
voltage
requirements
differ,
adjust
the
selector
switch
as
follows.
4,
Use
a
medium-size
screwdriver.
2.
Insert
the
screwdriver
into
the
groove
on
the
voltage
selector,
and
adjust
so
that
the
tip
of
the
arrow
points
to
the
voltage
value
of
your
area.
English
Espajiol
The
illustration
shows
model
A-403.
La
ilustraci6n
muestra
el
modelo
A-403.
BBR
RA-403
ela
VOLTAGE
SELECTOR:
|
220v
2eov
\
Medium-size
screwdriver
Yov
rove
IMPORTANT
a
tisk
of
electric
shock
to
persons.
CAUTION
‘QUALIFIED
SERVICE
PERSONNEL.
RISK
OF
ELECTRIC
SHOCK
A
DO
NOT
OPEN
‘The
lightning
flash
with
arrowhead,
within
an
equilateral
CAUTION:
The
exclamation
point
within
an
equilateral
triangle
is
triangle,
is
intended
to
alert
the
user
to
the
presence
of
JO
PREVENT
THE
RISK
OF
ELECTRIC
SHOCK,
DO
intended
to
alert
the
user
to
the
presence
of
important
uninsulated
“dangerous
voltage”
within
the
products
NOT
REMOVE
COVER
{OR
BACK).
NO
USER.
operating
and
maintenance
(servicing)
instructions
in
enclosure
that
may
be
of
sufficient
magnitude
to
constitute
SENVICEABLE
PARTS
INSIDE.
REFER
SERVING
YO
the
literature
accompanying
the
applience.

Table of Contents

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Pioneer A-303 Specifications

General IconGeneral
Frequency Response5Hz to 100kHz
Input Sensitivity (Phono)2.5 mV
Input Sensitivity (Line)150 mV
Signal-to-Noise Ratio (Line)100 dB
Speaker Load Impedance4Ω to 16Ω
Output150mV
Dimensions420 x 90 x 320 mm

Summary

General Safety Warning

Line Voltage Selector Switch

Important Safety Notices

Installation and Maintenance

Installation Location Guidelines

Provides guidance on selecting a suitable, well-ventilated location, avoiding heat, humidity, and direct sunlight.

Power Cord Safety Precautions

Details safe handling of the power cord to prevent electric shock or fire hazards.

Front Panel Controls

Power Switch and Indicator

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

Input Selector Buttons

Details the buttons used to select the audio playback source from various inputs.

Speaker Selector Buttons

Rear Panel Facilities

Input and Output Terminals

Voltage Selector and AC Outlets

Describes the voltage selector switch and the switched/unswitched AC outlets.

Connecting Components

Audio Source Connections

Speaker System Wiring

Connection Procedures

Connecting Speaker Cords

Step-by-step guide on stripping wire and securely connecting speaker cords to terminals.

Connecting Input/Output Cords

Speaker Impedance Requirements

AC Outlet Usage

Troubleshooting Common Issues

No Power or No Sound

Addresses issues like no power supply, no sound from either speaker, or no sound from one speaker.

Recording and Copying Problems

Covers troubleshooting for inability to record tapes or perform tape copying operations.

Technical Specifications

Amplifier Section Details

Provides detailed specifications for the amplifier section, including power output and distortion.

Input, Output, and Tone Controls

Power Supply and Physical Attributes

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