Sony SSCN-225, SSV-225, SAVE-225, SAWMS-225 Service manual
SA-VE225/WMS225/
SS-CN225/V225
SERVICE MANUAL
Ver 1.0 2001.02
SA-WMS225
• SA-VE225 consists of the following models respectively.
SA-VE225
Active Subwoofer SA-WMS225
Center Speaker SS-CN225
Front and Rear Speakers SS-V225
SS-V225
AEP Model
UK Model
SS-CN225
SPECIFICATIONS
SS-V225 (Front and rear speakers)
Speaker system Full range, magnetically
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 ×
Mass Approx. 550 g each
SS-CN225 (Center speaker)
Speaker system Full range × 2,
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 ×
Mass Approx. 1.1 kg
SA-WMS225 (subwoofer)
Speaker system Active subwoofer,
Speaker unit Woofer: 16 cm, cone type
Enclosure type Advanced SAW type
Amplifire section
Continuous RMS power output
Reproduction frequency range
High frequency cut-off frequency
shielded
126 mm, including front
grille
magnetically shielded
126 mm, including front
grille
magnetically shielded
50 W(8 ohms, 20 - 150 Hz,
0.8% THD)
28 Hz - 200 Hz
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
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.
mm, including front grille
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 PUBLISHED BY SONY.
9-929-575-11 Sony Corporation
2001B0500-1 Audio Entertainment Group
C 2001.2 General Engineering Dept.
MICRO SATELLITE SYSTEM
SA-VE225/WMS225/SS-CN225/V225
SECTION 1
DIAGRAMS
1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
Voltage var iations may be noted due to normal production tolerances.
• Signal path.
F : AUDIO
4
W or less unless otherwise
2
SA-VE225/WMS225/SS-CN225/V225
• Circuit Boards Location
SA-WMS225
LED board
CONTROL board
POWER SW board
POWER IC board
MAIN board
• IC Block Diagrams
– MAIN Board –
IC302 µPC1237HA
OVER LOAD DET
OFFSET DET
LATCH/
AUTORESET
1 2 3
OFFSET DET
OVER LOAD DET
AUTO RESET
– POWER IC Board –
IC401 TDA7294
V
CC
GND
ON
MUTE
RELAY DRIVE
VCC ON MUTE
F/F
AC OFF
DET
4 5 6 7 8
AC OFF DET
VCC
TRANSCONDACTANCE
INPUT STAGE
IN–
IN+
STBY-GND
BIPOLAR
–
+
IN+ MUTE
NC
MOS GAIN &
LEVEL SHIFTING
STAGE
BOOST-
STRAP
BOOSTSTRAP
+VS
STANDBY/
MUTE
–VS
STBY
THERMAL
SHUTDOWN
MOS
OUTPUT
STAGE
MUTE
SHORT
CIRCUIT
PROTECTION
NC
NC
14 1512 1310 118 96 753 41 2
OUT
+PWVS
–PWVS
33
SA-VE225/WMS225/SS-CN225/V225
1-2. PRINTED WIRING BOARDS (SA-WMS225) • See page 3 for Circuit Boards Location.
• Semiconductor
Location
Ref. No. Location
D101 G-11
D102 F-11
D103 G-10
D104 G-10
D301 F-8
D302 F-8
D303 F-5
D304 D-8
D501 G-5
D502 G-7
D503 H-7
D801 B-7
IC101 G-11
IC102 G-9
IC103 E-11
IC201 B-3
IC302 E-10
IC401 B-10
Q101 G-9
Q102 G-8
Q103 E-10
Q303 D-9
A
B
C
12
CONTROL BOARD
MUSIC
r
MOVIE
POWER SW
BOARD
MODE
34567891011
POWER IC BOARD
LED BOARD
11
(13)
11
1-676-714-
(13)
LEVEL
11
1-676-713
(13)
(POWER)
1-676-565-
D
E
F
G
AC
IN
MAIN BOARD
POWER
1-676-716-
T501
POWER
TRANSFORMER
SP1
(SPEAKER)
11
(13)
H
R102 R101
R104
R103
1-677-993-
11
(11)
OUT IN
R
SPEAKER
L
LINE
44
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