Sony SA-WMS225 User Manual

SERVICE MANUAL
SS-V225 (Front and rear speakers)
Speaker system Full range, magnetically
shielded
Speaker units 5 × 9 cm, cone type
Enclosure type Bass reflex
Rated impedance 8 ohms
Power handling capacity
Maximum input power: 100 watts
Sensitivity level 86 dB (1 W, 1 m)
Frequency range 90 Hz - 20,000 Hz
Dimensions (w/h/d) Approx. 70 × 151 ×
126 mm, including front
grille
Mass Approx. 550 g each
SS-CN225 (Center speaker)
Speaker system Full range × 2,
magnetically shielded
Speaker units 5 × 9 cm, cone type
Enclosure type Bass reflex
Rated impedance 8 ohms
Power handling capacity
Maximum input power: 120 watts
Sensitivity level 88 dB (1 W, 1 m)
Frequency range 90 Hz - 20,000 Hz
Dimensions (w/h/d) Approx. 301 × 70 ×
126 mm, including front
grille
Mass Approx. 1.1 kg
SA-WMS225 (subwoofer)
Speaker system Active subwoofer,
magnetically shielded
Speaker unit Woofer: 16 cm, cone type
Enclosure type Advanced SAW type
Amplifire section
Continuous RMS power output
50 W(8 ohms, 20 - 150 Hz,
0.8% THD)
Reproduction frequency range
28 Hz - 200 Hz
High frequency cut-off frequency
200 Hz
Inputs
LINE IN (input pin jack)
SPEAKER IN (input terminals)
Outputs
LINE OUT (output pin jack)
SPEAKER OUT (output terminals)
General
Power requirements 220 - 230 V AC, 50/60 Hz
Power consumptions 50 W
Dimensions (w/h/d) Approx. 205 × 385 × 385
mm, including front grille
Mass Approx. 10.5 kg
Supplied accessories
Foot pads (20)
Monaural connecting cord (1 phono to 1 phono) (1)
Speaker connecting cords, 10 m (2)
Speaker connecting cords, 3.5 m (3)
Speaker connecting cords, 2.5 m (2)
Design and specifications are subject to change without
notice.
MICRO SATELLITE SYSTEM
AEP Model
UK Model
Ver 1.0 2001.02
9-929-575-11 Sony Corporation
2001B0500-1 Audio Entertainment Group
C 2001.2 General Engineering Dept.
SPECIFICATIONS
SA-VE225/WMS225/
SS-CN225/V225
• SA-VE225 consists of the following models respectively.
SA-VE225
Active Subwoofer SA-WMS225
Center Speaker SS-CN225
Front and Rear Speakers SS-V225
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
SA-WMS225
SS-V225
SS-CN225

Sony SA-WMS225 Specifications

General

Brand	Sony
Model	SA-WMS225
Category	Stereo System
Language	English

Summary

System Overview and Specifications

Speaker System Specifications

Details specifications for SS-V225, SS-CN225, and SA-WMS225 speakers, including units, impedance, power, and frequency response.

Safety Component Warning

Warns about critical safety components and the importance of using specified Sony replacement parts.

Diagram Conventions and Safety Notes

Critical Safety Component Identification

Highlights components critical for safety, marked with ▲, and emphasizes using specified Sony replacement parts.

Component Layout and IC Block Diagrams

Main Board IC Block Diagram

Shows the IC block diagram for the main board, featuring IC302 µPC1237HA and its functions.

Power IC Board IC Block Diagram

Shows the IC block diagram for the power IC board, featuring IC401 TDA7294 and its protection stages.

SA-WMS225 Printed Wiring Board Layouts

Main Board Printed Wiring Layout

Displays the printed wiring board layout for the main board with component references and connections.

SA-WMS225 Schematic Diagrams

Main Board and Control Board Schematics

Detailed schematic diagrams for the main board (amplifier, filters) and control board.

Power IC and LED Board Schematics

Detailed schematic diagrams for the power IC board (power amplifier) and LED board.

Exploded Views: SA-WMS225

SA-WMS225 Front Panel Assembly

Exploded view of the SA-WMS225 front panel assembly, showing parts like grille, front panel, and knobs.

SA-WMS225 Rear Panel Assembly

Electrical Parts List: General Components

Resistors, Switches, and LEDs

Electrical Parts List: Main Power Components

Connectors, Diodes, Fuses, and ICs

Transistors, Resistors, Relays, and Transformers