Sony SA-WX900 Service Manual

SA-WX900
SERVICE MANUAL
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
9-961-097-03
2005G02-1
© 2005.07
Sony Corporation
Home Audio Group
Published by Sony Engineering Corporation
ACTIVE SUBWOOFER
Ver. 1.2 2005.07
AUDIO POWER SPECIFICATIONS
For the U.S.A. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 4 ohm loads, from 20 – 200 Hz; rated 800 watts, minimum RMS
power, with no more than 0.8 % total harmonic distortion from 250
milliwatts to rated output.
System
Type
Active Subwoofer, magnetically shielded (closed cabinet)
Speaker units
Woofer : 30 cm dia. (12 in.), cone type x 2
Continuous RMS output
North American model
(4 ohms/100Hz, 0.8%) : 1,000 W
European model (DIN 4 ohms/100Hz, 0.8%) : 1,000 W
Reproduction frequency range
20 Hz – 200 Hz
High frequency cut-off frequency
50 Hz – 200 Hz
Phase selector
NORMAL, REVERSE
Mode selector
MOVIE, MUSIC
BASS-BOOST OFF, 1, 2
Inputs
Input jacks
LINE IN: input pin jack
SPEAKER IN: input terminals
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
General
Power requirements
North American model : 120 V AC, 60 Hz
European model : 220 – 240 V AC, 50 Hz
Other models : 220 – 240 V AC, 50 Hz
Power consumption
220 W
less than 0.5 W (Standby mode)
Dimensions
Approx. 440 x 550 x 620 mm
(17
3
/
8
x 21
7
/
8
x 24
1
/
2
in.) (w/h/d)
Mass
48 kg (105lb 14oz)
Supplied accessories
Audio connecting cord
(1 phono plug – 1 phono plug) (1)
Speaker cords (2)
Spike
Design and specifications are subject to change without notice.

Sony SA-WX900 Specifications

General

Type	Active Subwoofer
Power Output	300 W
Frequency Response	28 Hz - 200 Hz
Weight	13.5 kg
Driver Size	12 inches
Amplifier Power	300 Watts
Inputs	Line level, Speaker level

Summary

General Information and Safety

Safety Check-out Procedures

Procedures for ensuring AC leakage safety after repairs.

Control Panel Overview

Identifies and describes front panel controls and indicators.

Diagrams and Schematics

Circuit Boards Location

Visual guide to the location of circuit boards within the unit.

Schematic Diagram - Filter Section

Detailed electronic schematic for the filter section.

Printed Wiring Board - Filter Section

Printed wiring board layout for the filter section components.

Schematic Diagram - Power Section

Detailed electronic schematic for the power supply section.

Printed Wiring Board - Power Section

Printed wiring board layout for the power section components.

Exploded Views

Amp Section Exploded View

Exploded view of the amplifier section components and assembly.

Cabinet Section Exploded View

Exploded view of the cabinet and external components.

Electrical Parts List

Semiconductors

List of diodes, transistors, and ICs with part numbers.

Capacitors

List of capacitors with part numbers and specifications.

Resistors

List of resistors with part numbers and values.

Diodes

List of diodes with part numbers and types.

Transistors

List of transistors with part numbers and types.

Integrated Circuits (ICs)

List of integrated circuits with part numbers.

Switches

List of switches with part numbers.

Accessories

List of included accessories such as cords and manuals.

Revision History