Read Sony SA-WX90 Service Manual online
1
SERVICE MANUAL
ACTIVE SUBWOOFER
AEP Model
UK Model
E Model
SA-WX90
SPECIFICATIONS
System
Type
Active Subwoofer (magnetically shielded design)
Speaker unit
Woofer: 30 cm dia., cone type
Continuous RMS output
European model (DIN) (0.7%): 300 W
Other models (50 Hz) (0.8%): 250 W
Other models (50 Hz) (0.8%): 250 W
Reproduction frequency range
20 Hz - 120 Hz
High frequency cut-off frequency
50 Hz - 120 Hz
Phase selector
NORMAL, REVERSE
Inputs
Input jacks
LINE IN: input pin jack
SPEAKER IN: input terminals
SPEAKER IN: input terminals
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
SPEAKER OUT: output terminals
General
Power requirements
European model: 220 - 230 V AC, 50/60 Hz
Other models: 220 - 240 V AC, 50/60 Hz
Other models: 220 - 240 V AC, 50/60 Hz
Power consumption
European model: 125 W
Other models: 110 W
Other models: 110 W
Dimensions
Approx. 420 x 450 x 540 mm (w/h/d)
Mass
36 kg
Supplied accessories
Audio connecting cord
(1 phono plug - 1 phono plug) (1)
Speaker cords (2)
Design and specifications are subject to change without
notice.
Ver
.
1.
4
200
6
. 0
8
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
9-929-532-15
2006H02-1
© 2006.08
© 2006.08
2
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.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
TABLE OF CONTENTS
1. GENERAL
............................................................................ 3
2. DIAGRAMS
2-1. Note for Printed Wiring Board and Schematic Diagram ...... 3
2-2. Printed Wiring Board ............................................................ 4
2-3. Schematic Diagram ............................................................... 5
2-2. Printed Wiring Board ............................................................ 4
2-3. Schematic Diagram ............................................................... 5
3. EXPLODED VIEW
3-1. Cabinet Section ..................................................................... 6
4. ELECTRICAL PARTS LIST
.......................................... 6
3
3
SECTION 2
DIAGRAMS
• Location of controls
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : Power on
no mark : Power on
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
• Abbreviation
G
: German model
MY
: Malaysia model
SP
: Singapore model
• Circuit Boards Location
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
2-1. NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
MAIN board
POWER SW CE board
(not supplied)
(not supplied)
CONTROL board
(not supplied)
(not supplied)
POWER SUPPLY board
(not supplied)
(not supplied)
TRANS (SEC) board
(not supplied)
(not supplied)
TRANS (PRI) board
(not supplied)
(not supplied)
POWER (IC) board
(not supplied)
(not supplied)
– Front View (a part) –
SECTION 1
GENERAL
– Upper View (a part) –
– Rear View (a part) –
POWER
POWER indicator
LEVEL
PHASE
CUT OFF FREQ
LEVEL
MIN
MAX
CUT OFF FREQ
50Hz
PHASE
120Hz
REVERSE
NORMAL
LINE IN
SPEAKER OUT
LINE OUT
SPEAKER IN
POWER SAVE
IN
OUT
IN
OUT
OFF
AUTO
LINE
L
SPEAKER
POWER SAVE
R
L
R
4
4
SA-WX90
4
12
9
11
8
1-679-646-
1-679-645-
1-679-643-
1-679-647-
(11)
11
(11)
11
(11)
11
(11)
11
(11)
11
(11)
11
M801
FAN
MOTOR
1-679-642-
12
3
5
10
6
9
7
11
1
POWER
S851
10
8
2
VR501
LEVEL
LEVEL
MIN/MAX
SW501
PHASE
REVERSE NORMAL
VR502
COT
OFF
OFF
FREQ
3
1
2
4
6
5
7
JK501
LINE
OUT
OUT
IN
IN
TM501
L
R
SW502
POWER
SAVE
AUTO
AUTO
OFF
AC IN
09
(11)
11
SP601
T851
POWER
TRANSFORMER
POWER SW CE BOARD
CONTROL
BOARD
BOARD
POWER SUPPLY BOARD
POWER (IC) BOARD
MAIN BOARD
P3
P2
P1
P4
D801
TRANS (SEC)
BOARD
BOARD
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
TRANS (PRI)
BOARD
BOARD
SPEAKER
1-679-729-
1-679-730-
T801
POWER
TRANSFORMER
(CHASSIS)
M
N
5 4 3 2 1
2-2. PRINTED WIRING BOARD
• Semiconductor Location
(Main Board)
Ref. No.
Location
D501
C-2
D502
C-2
D503
F-3
D504
E-2
D505
F-3
D506
E-2
D507
F-4
D508
F-3
D509
J-3
D510
J-3
D601
H-4
D602
H-4
D605
I-4
D606
C-5
D607
C-4
D608
D-5
D609
A-3
D814
J-3
D817
K-4
D818
K-5
D819
K-5
D820
K-5
D821
J-4
D822
J-5
D823
B-4
D824
C-4
D815
A-15
Q607
B-12
Q611
C-16
Q612
B-14
Q613
B-13
Q614
B-11
Q810
A-16
Q811
A-16
• Semiconductor
Location
(Power IC Board)
(Power IC Board)
Ref. No.
Location
D805
D-9
D806
D-9
D807
F-9
D808
G-9
D810
D-13
D811
G-13
D812
E-15
D813
F-15
Q801
F-15
Q803
E-15
• Semiconductor
Location
(Power Supply
Board)
(Power Supply
Board)
Ref. No.
Location
There are a few cases that the part isn’t mounted in
model is printed on diagram.
model is printed on diagram.
Ref. No.
Location
IC501
E-2
IC502
B-2
IC505
I-3
IC506
G-3
IC507
D-3
IC601
H-4
IC602
E-4
Q501
E-4
Q502
E-4
Q503
I-2
Q504
J-2
Q505
J-3
Q601
G-4
Q602
G-4
Q603
G-4
Q604
G-5
Q605
F-4
Q606
H-5
Q608
F-5
Q805
E-5
Q806
F-5
Q807
J-3
Q808
J-5
Q809
A-3
Q812
B-3
Q813
C-3
