SA-WD200 — Sony Audio Service Manual (repair manual)

Model
SA-WD200
Pages
14
Size
2.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-wd200.pdf
Date

View Sony SA-WD200 Service Manual online

SA-WD200
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
ACTIVE SUBWOOFER
Sony Corporation
Home Audio Company
Shinagawa Tec Service Manual Production Group
9-873-218-01
2001G1600-1
© 2001.7
Ver 1.0  2001. 07
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 3 ohm loads, from 22 – 200 Hz; rated 250 watts,
minimum RMS power, with no more than 0.8 % total
harmonic distortion from 250 milliwatts to rated
output.
System
Type
Active Subwoofer
Speaker unit
Woofer: 13.5 cm dia. (5 
3
/
8
 in.), cone type
Continuous RMS output
US, Canadian model (0.8%) : 250 W
AEP, UK model (DIN) : 250 W
Other models (0.8%) : 250 W
Reproduction frequency range
22 Hz – 200 Hz
High frequency cut-off frequency
50 Hz – 200 Hz
Phase selector
NORMAL, REVERSE
Inputs
Input jacks
LINE IN: input pin jack
SPEAKER IN: input terminals (ELP plug 6P)
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
General
Power requirements
US, Canadian model : 120 V AC, 60 Hz
AEP, UK model : 220 - 230 V AC, 50/60 Hz
Other models : 110 - 120, 220 - 240 V AC, 50/60 Hz
Power consumption
50 W
1 W (Standby mode)
Dimensions
Approx. 165 
×
 450 
×
 425 mm
(w/h/d) (6 
1
/
2
 
×
 17 
3
/
4
 
×
 16 
3
/
4
 in.)
Mass
16 kg (35 lb 4 oz)
Supplied accessories
Audio connecting cord
(1 phono plug – 1 phono plug) (1)
Speaker cords (1)
Design and specifications are subject to change without
notice.
2
SA-WD200
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
    After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
    The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1.
A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2.
A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3.
Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
SAFETY  CHECK-OUT
To Exposed Metal 
Parts on Set
0.15 
µ
F
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
3
3
SA-WD200
SECTION 1
DIAGRAMS
1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
a
: Through hole.
• b
: Pattern from the side which enables seeing.
Indication of transistor
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
2
: nonflammable resistor
C
: panel designation
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 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path
F
: AUDIO
• Abbreviation
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model
• Circuit Boards Location
Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
INPUT board
INPUT-SELECT board
AC SELECT board (MY, SP)
POWER SUPPLY
board
LED board
POWER-SW board
CONTROL board
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• IC Block Diagrams
IC901
 
STR-F6426S (US, CND)
5
4
3
2
1
OSC
DRIVE
ICONST
START
REG.
T.S.D.
LATCH
O.V.P.
D
S
GND
VCC
FB/OCP
COMP.1
COMP.2
5
4
3
2
1
OSC
DRIVE
START
REG.
T.S.D.
LATCH
O.V.P.
D
S
GND
VCC
FB/OCP
COMP.1
COMP.2
IC901
 
STR-F6676 (AEP, UK, MY, SP)
4
4
SA-WD200
-12V
REG
ERROR
AMP
+12V
REG
 • Signal Path
: audio
T1
D801- 804
AC
IN
D909
D911
D910
D901
D906
D903
T901
IC907
2
3
IC902
2
1
IC906
1
3
RY801
RY701
D402(1/2)
(GREEN)
D402(2/2)
(RED)
Q204
LED
DRIVER
Q205
LED
DRIVER
Q203
RELAY
DRIVER
Q703
RELAY
DRIVER
Q701,702
PROTECT
Q704
AC-OFF
DETECT
Q801
+12V
REG
Q901
FEEDBACK
REG
Q802
-12V
REG
J101
LINE
OUT
IN
CN101
Q302
HPF
Q201
SWITCH
Q301
BOOST
SWITCH
Q202
CURRENT
REGULATOR
+12V
VCC
VCC
VSS
1
4
2
3
S
VCC
D
IC901
SWITCHING
REG
FB/OCP
PC901
+12V
-12V
VP(+40V)
POWER
ON/STANDBY
S801
D701
D919
D920
ICE250A-SW
POWER AMP
(SPEAKERS)
SPEAKER IN
TM101
SPEAKER OUT
R+
C+
L+
R-
C-
L-
R
C
L
IC101(1/2)
AMP
IC102(1/2)
AMP
IC102(2/2)
PHASE INVERTER
IC301(1/2)
PHASE CONTROL
IC301(2/2)
HPF
IC302(1/2)
LPF
IC302(2/2)
AMP
IC304(1/2)
HPF
IC304(2/2)
LPF
IC103(1/2)
BUFFER
IC103(2/2)
BUFFER
IC201(1/2)
AMP
IC201(2/2)
LEVEL DETECT
IC101(2/2)
AC AMP
D201
5
6
7
2
1
6
7
5
7
2
1
6
7
2
1
5
6
7
1
1
3
1
3
3
5
7
5
7
3
2
1
NORMAL
REVERSE
PHASE
S502
OFF
ON
BOOST
S301
OFF
AUTO
POWER SAVE
S501
50Hz
200Hz
CUT OFF FREQ.
POWER
ON/STANDBY
50Hz
200Hz
RV302
LEVEL
RV301
220-240V
110-120V
S901
AC SELECT
SWITCH
MY, SP
EXCEPT MY, SP
MIN
MAX
1-2. BLOCK DIAGRAM
5
5
SA-WD200
1-3. PRINTED WIRING BOARD  — CONTROL SECTION —   • 
See page 3 for Circuit Boards Location.
IC201
IC102
IC103
IC101
IC304
IC302
IC301
Ref. No.
Location
D101
B-3
D102
B-3
D103
B-2
D104
B-2
D105
A-1
D106
B-1
D201
A-4
D202
B-4
D203
B-4
D204
B-4
D205
B-3
IC101
B-2
IC102
B-1
IC103
B-2
IC201
B-4
Q201
B-4
Q202
B-3
Q203
B-4
Q204
B-4
Q205
B-4
• Semiconductor
Location
[INPUT BOARD]
Ref. No.
Location
IC301
B-9
IC302
B-8
IC304
B-6
Q301
A-8
Q302
B-8
• Semiconductor
Location
[CONTROL BOARD]

Download Sony SA-WD200 Service Manual (Repair Manual)

Here you can view online or download Sony SA-WD200 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony SA-WD200 Audio. Information contained in Sony SA-WD200 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).