Sony SS-WG880 Service Manual ▷ View online
SS-WG880
E Model
Australian Model
SERVICE MANUAL
SUBWOOFER SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
9-877-803-01
2004D02-1
© 2004.04
© 2004.04
SPECIFICATIONS
Ver 1.0 2004. 04
Subwoofer system
1-way, 1-unit, bass-reflex type
Speaker units
Sub Woofer
Sub Woofer
20 cm, cone type
Nominal impedance
8 ohms
Dimensions (w/h/d) (Approx.)
265 x 430 x 320 mm
Mass (Approx.)
7.4 kg
Design and specifications are subject to change without notice.
• SS-WG880 is the subwoofer section
in MHC-GN880.
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
LOCATING THE CONTROLS
B
6
E
E
D
C
A
ALPHABETICAL ORDER
LINK (indicator) 6
MATRIX SURR 1 (indicator) 3
MATRIX SURR 1 (indicator) 3
MATRIX SURR 2 (indicator) 2
SUBWOOFER LEVEL 4
SUBWOOFER ON/OFF 1
SURROUND SPEAKER MODE 5
SUBWOOFER ON/OFF 1
SURROUND SPEAKER MODE 5
A – Z
2
SS-WG880
2-1. PRINTED WIRING BOARD
R104
R117
R115
R105
S102
D105
Q105
D106
D108
JW101
D107
Q107
E
E
E
Q108
Q106
R116
R106
R108
R118
R107
JW102
R103
R102
R101
C101
1 2 3
C102
C103
S101
R125
CN101
R128
HCD-GN880
R126
R127
RV101
JW103
JW104
E
BOARD
SW PANEL
11
(11)
1-862-762-
MATRIX
SURR 2
MATRIX
SURR 1
SUBWOOFER
ON/OFF
SURROUND
SPEAKR
MODE
SUBWOOFER
LEVEL
LINK
2
3
A
1
B
C
D
Ref. No.
Location
D105
A-2
D106
B-2
D107
B-3
D108
B-2
Q105
A-2
Q106
B-2
Q107
B-3
Q108
B-2
• Semiconductor
Location
SECTION 2
DIAGRAMS
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
B
These are omitted.
C
E
Q
3
SS-WG880
2-2. SCHEMATIC DIAGRAM
RV101
D105
D106
D107
D108
R125
R126
R115
R116
C102
R117
R118
S101
R104
R103
S102
R102
R101
C101
Q105
Q106
Q107
Q108
R127
R128
CN101
R105
R106
R107
R108
C103
50k
SEL 5923A-TP15
SEL 5923A-TP15
SEL 5923A-TP15
SEL 5923A-TP15
10k
10k
10k
10k
100
10V
10V
10k
10k
10k
4.7k
2.2k
100k
100p
2SC2785TP-FEK
2SC2785TP-FEK
2SC2785TP-FEK
2SC2785TP-FEK
10k
10k
180
180
180
180
0.1
SUBWOOFER
LEVEL
MATRIX
LINK
Q105-108
LED
DRIVER
SURROUND
SPEAKER
MODE
ON/OFF
SUBWOOFER
SURR 2
MATRIX
SURR 1
ON/OFF
SUBWOOFER
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF) 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise specified.
•
C
: panel designation.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground in service
mode.
no mark : POWER ON
no mark : POWER ON
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production toler-
ances.
ances.
4
SS-WG880
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SECTION 3
EXPLODED VIEWS
NOTE:
•
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
1
6
7
4
5
3
not supplied
not supplied
not supplied
SP1
7
2
8
2
1
A-4713-731-A FRONT PANEL ASSY
2
4-986-911-11 SCREW (3.5)
3
4-874-614-02 SCREW (1) (3.5X14), TAPPING
4
2-022-110-01 KNOB, LEVEL
5
2-022-109-01 KNOB, MODE
6
1-862-762-11 SW PANEL BOARD
7
4-951-620-01 SCREW (2.6X8), +BVTP
8
1-824-107-13 CORD, CONECTION
SP1
1-825-921-11 SPEAKER (20cm)
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