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Pioneer SX-440 Service Manual

Pioneer SX-440
21 pages
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PIONEER'
o)/>f
SOLID
STATE
FM-AM
STEREO RECEIVER
sx-44(f
-w
CAUTION Before
connecting
the line cord to the wall socket,
carefully
read and
follow
the instructions described
below, to
assure the safety
of
your
unit.
o
Model
SX-440
is set
for240V operation
when shipped.
lf this unit
is
used
in
a
different
line-voltage area,
read and
follow
"LINE
VOLTAGE SELECTION AND
FUSE" on back
cover.
Be sure
that
the line voltage
setting on
your
unit agrees with the line voltage in
your
area
and that the fuse
installed in
your
unit
is
a
proper
one.
INSTALLATION,
OPERATING
AND
SERVICE
MANUAL
lncluding
PARTS
LIST,
CIRCUIT DIAGRAMS,
TROUBLE
SHOOTING
AND
MOUNTING TEMPLATE,
PIONI,ER ELEGTRENTtr
CURPtrRilTIOil
Yt{H
$gltrI"Q
wrt'L
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Pioneer SX-440 Specifications

General IconGeneral
Input Sensitivity2.5mV (MM), 200mV (line)
Tuning RangeFM, MW
Speaker Load Impedance4Ω to 16Ω
Frequency Response20Hz to 20kHz
Signal to Noise Ratio80dB (line)
Semiconductors19 x transistors, 11 x diodes
Power Output12W per channel into 8Ω (stereo)

Summary

Installation, Operating and Service Manual

Features of the SX-440

Highlights key performance and functional aspects of the stereo receiver.

Line Voltage Selection and Fuse

Instructions for setting the correct voltage and replacing the fuse for safety.

Rear Panel Connections Overview

Details on connecting various audio components to the rear panel of the receiver.

Installation and Listening Room Advice

Guidance on optimal system placement and improving listening room acoustics.

Front Panel Controls Overview

Diagram identifying all buttons, knobs, and indicators on the front of the SX-440.

Front Panel Control Descriptions

Detailed explanation of each knob and switch on the front panel and their functions.

Rear Panel Terminal Guide

Comprehensive guide to all input and output terminals on the rear panel for connectivity.

Speaker and Antenna Connections

How to connect speakers, FM/AM antennas, and grounding procedures.

Connecting Audio Sources

Guidance on connecting record players, tape decks, and cartridge players.

Broadcast Reception Guide

Step-by-step instructions for tuning into FM and AM radio broadcasts.

Playing Records and Tapes

How to play vinyl records and cartridge tapes.

Tape Recording and Playback

Procedures for recording audio onto tape and playing back recorded tapes.

AM Section and Dial Cord Alignment

Technical steps for aligning the AM section and stringing the dial cord.

FM and MPX Section Alignment

Technical procedures for aligning the FM and multiplex stereo sections.

Technical Specifications

Detailed technical data including transistors, circuits, frequency response, and power.

Troubleshooting Common Issues

Identifies common noise and operational issues and provides diagnostic steps and remedies.

Parts List

Comprehensive list of all components used in the SX-440, including part numbers.

Tuner Unit Circuit Board Layout

Visual layout of the tuner unit's printed circuit board with component placement.

Audio and Power Supply Circuit Board Layouts

Visual layouts of the audio and power supply unit's printed circuit boards with component placement.

Overall Parts Layout Diagram

Top view diagram showing the physical placement of major units and components.

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