Read Sony SA-RV990 Service Manual online
1
Ver 1.0 2003. 07
SERVICE MANUAL
E Model
Australian Model
SPECIFICATIONS
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-961-059-01
2003G04-1
© 2003. 07
ACTIVE SUBWOOFER
SA-RV990
System
Type
Active Subwoofer (magnetically shielded design)
Speaker unit
Woofer: 20 cm dia, cone type
Amplifier section
Continuous RMS output: 100 W (0.8%)
Reproduction frequency range
36 Hz – 200 Hz
High frequency cut-off frequency
50 Hz – 200 Hz
Phase selector
NORMAL, REVERSE
Inputs
Input jacks
INPUT: input pin jack
SPEAKER IN: input terminals
SPEAKER IN: input terminals
Output jacks
SPEAKER OUT: output terminals
General
Power requirements
Australian models: 230 – 240 V AC, 50/60 Hz
Mexican models: 127 V AC, 60 Hz
Other models: 120/230 – 240 V AC, 50/60 Hz
Mexican models: 127 V AC, 60 Hz
Other models: 120/230 – 240 V AC, 50/60 Hz
Power consumption
100 W
Dimensions
Approx. 270
×
325
×
425 mm (w/h/d)
Mass
10 kg
Supplied accessories
Foot pads (4)
Audio connecting cord (1 phono – 1 phono), 2 m (1)
Speaker cords, 2.5 m (2)
Audio connecting cord (1 phono – 1 phono), 2 m (1)
Speaker cords, 2.5 m (2)
Design and specifications are subject to change without notice.
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SA-RV990
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Circuit Boards Location ...................................................... 3
1-2. Printed Wiring Boards ......................................................... 5
1-3. Schematic Diagram ............................................................. 6
1-2. Printed Wiring Boards ......................................................... 5
1-3. Schematic Diagram ............................................................. 6
2. EXPLODED VIEWS
2-1. Front Section ....................................................................... 7
2-2. Rear Section ........................................................................ 8
2-2. Rear Section ........................................................................ 8
3. 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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
3
SA-RV990
1-1. CIRCUIT BOARDS LOCATION
SECTION 1
DIAGRAMS
CONTROL board
INPUT board
MAIN board
POWER board
SWITCH board
4
SA-RV990
Ref. No.
Location
D201
I-7
D202
I-7
D203
I-7
D204
I-7
D205
E-10
D206
E-10
D301
G-7
D302
G-7
D304
E-8
D401
D-6
D402
E-7
D403
D-7
D501
D-8
D502
G-7
D602
D-10
D901
B-10
IC201
I-8
IC202
E-11
IC203
E-12
IC301
G-9
IC701
H-12
Q501
D-8
Q502
E-8
Q503
D-9
Q504
D-9
Q505
G-7
• Semiconductor
Location
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.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
• 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
E3
: AC 240 V area in E model
E51
: AC 220 V area in E model
SP
: Singapore model.
AUS
: Australian model.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
E3
: AC 240 V area in E model
E51
: AC 220 V area in E model
SP
: Singapore model.
AUS
: Australian model.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.