SA SA WZ8 Service Manual
SA-WZ8
SERVICE MANUAL
Ver 1.0 2003.05
SPECIFICATIONS
System
Type Active Subwoofer (magnetically shielded design)
Speaker unit Subwoofer: 20 cm dia, cone type
Amplifier section Continuous RMS output: 150 W (1.0%)
Reproduction frequency range
20 Hz – 200 Hz
Phase selector NORMAL, REVERSE
E Model
Australian Model
9-877-342-01
2003E02-1
© 2003.05
Inputs
Input jacks LINE IN: input pin jack
General
Power requirements
Australian model: 230 - 240 V AC, 50/60 Hz
E, Singapore models: 110 - 120 V or 220 - 240 V, 50/60 Hz
Power consumption 160 W
Dimensions Approx. 265 x 415 x 405 mm (w/h/d)
Mass 13 kg
Supplied accessories
Foot pads (4)
Audio connecting cord (1 phono – 1 phono), 2 m (1)
Design and specifications are subject to change without notice.
ACTIVE SUBWOOFER
Sony Corporation
Home Audio Company
Pubulished by Sony Engineering Corporation
SA-WZ8
TABLE OF CONTENTS
Specifications ............................................................................ 1
1. GENERAL
Locating the Controls ......................................................... 3
2. DIAGRAMS
2-1. Printed Wiring Boards – Main Section –.................... 4
2-2. Printed Wiring Boards – Power Section – .................. 5
2-3. Schematic Diagram ..................................................... 6
3. EXPLODED VIEWS
3-1. Front Section .............................................................. 7
3-2. Rear Section ................................................................ 8
4. ELECTRICAL PARTS LIST..................................... 9
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.
2
SA-WZ8
d
• LOCATING THE CONTROLS
– Upper View (a part) –
POWER
POWER
POWER
POWER indicator
LEVEL PHASE
SECTION 1
GENERAL
NORMAL
REVERSE
This section is extracted from
instruction manual.
For Printed Wiring Boards:
Note:
• X : parts extracted from the component side.
•
• Abbreviation
: Pattern from the side which enables seeing.
AUS : Australian model
SP : Singapore model
SECTION 2
DIAGRAMS
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or
• All resistors are in Ω and 1/4 W or less unless otherwise specifed.
• C : panel designation.
Note: The components identified by mark 0 or dotted line with
• A : B+ Line.
• B : B– Line.
•Voltages are dc with respect to ground under no-signal conditions.
•Voltages are taken with a VOM (Input impedance 10 MΩ).
• Signal path.
• Abbreviation
less are not indicated except for electrolytics and tantalums.
mark 0 are critical for safety.
Replace only with part number specified.
no mark : Power on
Voltage variations may be noted due to normal production
tolerances.
F : AUDIO
AUS : Australian model
SP : Singapore model
– Rear View (a part) –
INPUT
MIN MAX
LEVEL PHASE
INPUT
• Circuit Boads Location
MAIN board
POWER SWITCH board
INPUT boar
WD PANEL board
POWER TRANS board
33
SA-WZ8
2-1. PRINTED WIRING BOARDS –MAIN Section– • See page 3 for Notes. • See page 3 for Circuit Boards Location.
1
2
3 4 5 6 7
INPUT BOARD
8
9 10
A
NO603
1
SP1
SPEAKER
J201
INPUT
WD PANEL BOARD
D201
POWER
11
C603
C623
1-687-521-
R602
R631
C604
R603
C605
R607
C607
C606
MAIN BOARD
B
R401
A
POWER
TRANS
C
BOARD
(Page 5)
C804
D401
C803
CN801
1
6
R801
C811
D801
D804
C812
JW150
JW151
C806
C801
D802
D803
C805
R806
JW153
R804
R805
C808
JW152
C810
R803
D822
JW136
JW137
C807
E
C809
C402
Q802
Q801
D821
E
D400
JW141
JW140
JW139
JW138
R402
R403
C401
Q401
JW143
Q402
R400
Q403
RY400
E
C403
E
Q404
E
R405
R406
R404
JW160
BC401
JW146
JW147
JW148
JW149
D
R610
C304
C303
JW161
C313
R301
1
C306
JW132
R334
C334
JW129
JW131
C307
C344
IC301
JW126
C310
R306
JW130
13
R308
R318
JW125
JW127
C311
JW124
C608
C609
JW123
R354
C384
C354
R802
D805
E
JW135
F
(CHASSIS)
C802
R302
Q302
EP801
E
R330
JW134
R303
R333
R304
R300
C322
D303
R630
R604
JW122
JW101
C602
C601
D602
R609
R611
(11)
5
R608
R312
IC601
4
R605
5
IC602
4
C612
Q601
R616
JW121
S
1
D601
1
R606
R638
8
R619
D603
CN602
R600
R601
8
1
JW105
JW107
JW111
JW112
JW113
JW114
R618
JW162
C614
5
IC603
4
JW102
JW611
JW621
JW103
JW104
JW108
JW109
JW110
JW115
R617
8
1
R615
R614
1-687-518-
JW622
R621
JW164
C613
D604
JW119
JW163
R613
CN601
C610
C615
R201
RV202
LEVEL
1
9
9
1
CN201
JW201
C611
JW202
JW203
S201
PHASE
t
NORMALREVERSE
1-688-166-
11
(11)
• Semiconductor
Ref. No. Location
D201 A-9
D303 F-4
D400 C-4
D401 B-2
D601 C-7
D602 C-6
D603 F-7
D604 F-8
D801 C-2
D802 B-3
D803 B-3
D804 C-2
D805 D-2
D821 B-4
11
(11)
D822 C-3
IC301 F-5
IC601 C-7
IC602 D-7
IC603 E-7
Q302 F-3
Q401 C-4
Q402 C-4
Q403 B-5
Q404 C-4
Q601 E-7
Q801 B-4
Q802 C-4
4
4
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