Sony SA-WD100 User manual

SA-WD100
US Model
Canadian Model
AEP Model
UK Model
E Model
Chinese Model
SERVICE MANUAL
ACTIVE SUBWOOFER
9-873-640-02
2002K1600-1
© 2002.11
Ver 1.1 2002. 11
SPECIFICATIONS
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 3 ohm loads, from 26 – 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 3/8in.), cone type
Continuous RMS output
North American model (0.8%) : 200 W
European model (DIN) : 200 W
Other models (0.8%) : 200 W
Reproduction frequency range
26 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
North American model : 120 V AC, 60 Hz
European model : 220 - 240 V AC, 50/60 Hz
Other models : 220 - 240 V AC, 50/60 Hz
Power consumption
North American model : 50 W
Other models : 50 W
1 W (Standby mode)
Dimensions
Approx. 165 ×325 ×425 mm
(w/h/d) (6 1/2×12 7/8×16 3/4in.)
Mass
10 kg (22 lb 1 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-WD100
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE WITH
MARK 0ON 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 0SUR 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 forAC leakage. Check leakage as
described below.
LEAKAGE
TheAC 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-operatedAC 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 µF1.5 kΩ
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Ver 1.1 2002.11

3
SA-WD100
SECTION 1
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.
CE
Q
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W 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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path
F: AUDIO
•Abbreviation
CND : Canadian model
SP : Singapore model
CH : Chinese model
•Circuit Boards Location
MAIN POWER board
INPUT
SELECT boar
d
INPUT board
CONTROL board
POWER SWITCH board
AUTO POWER board
LED board
Note:
Les composants identifiés
par une marque 0sont cri-
tiques pour la sécurité.
Ne les remplacer que par
une piéce portant le numéro
spécifié.
Note:
The components identified
by mark 0or dotted line
with mark 0are critical for
safety.
Replace only with part
number specified.
Ver 1.1 2002.11

4
SA-WD100
•IC Block Diagrams
IC901 STR-F6426S (US, CND)
IC901 STR-F6676 (AEP, UK, SP, CH)
54321
OSC DRIVE ICONST
START
REG.
T.S.D.
LATCH O.V.P.
DS GNDVCCFB/OCP
COMP.1
COMP.2
54321
OSC DRIVE
START
REG.
T.S.D.
LATCH O.V.P.
DS GNDVCCFB/OCP
COMP.1
COMP.2
Ver 1.1 2002.11

55
SA-WD100
1-1. Printed Wiring Board – Control Section – • See page 3 for Circuit Boards Location.
IC304
IC302
IC301 IC102
IC103
IC101
LEVEL
Ref. No. Location
D101 B-6
D102 B-5
D103 B-6
D104 B-5
D105 A-6
D106 A-6
•Semiconductor Location
Ref. No. Location
IC101 B-6
IC102 A-6
IC103 B-6
IC301 A-3
IC302 B-3
IC304 A-1
Ref. No. Location
Q101 D-6
Q102 D-6
Q103 D-6
Q104 D-5
Q105 D-6
Q301 A-2
Q302 A-2

66
SA-WD100
1-2. Schematic Diagram – Control Section –
33k
6.8k
Ver 1.1 2002.11

77
SA-WD100
1-3. Printed Wiring Board – Power Section – • See page 3 for Circuit Boards Location.
IC906
IC907
IC902
PC901
IC901
IC201
US,CND
AEP,UK,SP,CH
US,CND
US,CND
AEP,UK,SP,CH
AEP,UK,
SP,CH
US,CND
Ref. No. Location
D201 E-7
D202 E-7
D203 E-7
D204 E-7
D205 E-8
D206 E-8
D207 E-9
D208 D-8
D209 E-8
D210 E-8
D211 F-8
D402 C-6
D701 B-1
D807 E-7
D901 D-1
D902 D-3
D903 D-2
D904 D-2
D905 D-3
D906 D-2
D907 D-2
D908 C-2
D909 B-4
D910 C-2
D911 C-2
D919 B-2
D920 B-2
D921 B-1
D922 C-1
•Semiconductor Location
Ref. No. Location
IC201 F-8
IC901 D-1
IC902 C-2
IC906 B-2
IC907 B-3
PC901 C-2
Q201 E-8
Q202 E-8
Q203 E-8
Q204 E-8
Q205 F-8
Q206 F-8
Q207 F-8
Q701 B-2
Q703 B-2
Q704 B-1
Q705 B-1
Q901 D-2
Ver 1.1 2002.11

88
SA-WD100
1-4. Schematic Diagram – Power Section – • See page 4 for IC Block Diagrams.
RD13ESB2
RD13ESB2
2SA1175-HFE
DTC124ESA
DTA124ES
250V
C918 *4
PHOTO ISOLATOR
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
390
CH
CH
CH
CH
*4 C918
3300/63V(US,CND)
6800/50V(AEP,UK,SP,CH)
P
IC B/D
Ver 1.1 2002.11

9
SA-WD100
NOTE:
•-XX, -X mean standardized parts, so they may
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.
•The mechanical parts with no reference number
in the exploded views are not supplied.
•Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
•Abbreviation
CND : Canadian model
SP : Singapore model
CH : Chinese model
SECTION 2
EXPLODED VIEWS
2-1. Overall Section
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
#3
#2
#2
#2
#1
#1
#1
#1
#1
#1
not
supplied
not
supplied
not
supplied
not
supplied
5
8
2
3
2
1
4
6
7
amplifier block section
not supplied
SP901
not
supplied
1X-4954-642-1 FRAME ASSY, GRILLE
24-239-215-01 SCREW, ORNAMENT
3X-4954-641-1 PANEL ASSY, FRONT (US,CND)
3X-4954-997-1 PANEL ASSY, FRONT (AEP,UK,SP,CH)
4A-4676-381-A LED BOARD, COMPLETE
5A-4676-380-A POWER SWITCH BOARD, COMPLETE
61-684-639-11 CONTROL BOARD
74-236-589-01 KNOB
84-993-938-82 PUSH KNOB (A)
SP901 1-825-107-11 SPEAKER (13.5cm)
#1 7-685-564-01 SCREW +PTP 4X25 TYPE1
#2 7-685-646-79 SCREW +P 3X8 TYPE2 NON-SLIT
#3 7-682-551-09 SCREW +B 3X14
When indicating parts by reference number,
please include the board name.
The components identified by mark !or
dotted line with mark !are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
!sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
Ver 1.1 2002.11

10
SA-WD100
2-2. Amplifier Block Section
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
51 A-4676-383-A AUTO POWER BOARD, COMPLETE
52 A-4676-377-A MAIN POWER BOARD, COMPLETE (US, CND)
52 A-4676-386-A MAIN POWER BOARD, COMPLETE
(AEP, UK, SP, CH)
53 6-700-752-01 IC ICE250A-SW (POWER AMP UNIT)
54 A-4676-379-A INPUT BOARD, COMPLETE
55 A-4676-382-A INPUT SELECT BOARD, COMPLETE
56 4-235-820-01 PANEL, REAR
*57 3-703-244-00 BUSHING (2104), CORD
058 1-751-520-11 CORD, POWER (AEP, UK, SP)
058 1-782-464-41 CORD, POWER (CH)
058 1-783-820-11 CORD, POWER (US, CND)
0F901 1-532-504-31 FUSE (T4AL/250V) (AEP, UK, SP)
0F901 1-532-594-11 FUSE, GLASS TUBE (6.3A/125V) (US, CND, CH)
0F902 1-532-717-00 FUSE, GLASS-TUBE (10A/125V) (US, CND, CH)
0F902 1-533-949-31 FUSE, CYLINDRICAL (TIME LUG) (T8AL/250V)
(AEP, UK, SP)
0T201 1-437-234-11 POWER TRANSFORMER (US, CND, CH)
0T201 1-437-237-12 POWER TRANSFORMER (AEP, UK, SP)
0T901 1-437-232-11 TRANSFORMER, POWER (US, CND, CH)
0T901 1-437-233-11 TRANSFORMER, POWER (AEP, UK, SP)
#1 7-685-547-19 SCREW +BTP 3X10 TYPE2 N-S
#2 7-685-871-09 SCREW +BVTT 3X6 (S)
#3 7-682-161-01 SCREW +P 4X8
58
57
56
53
55
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied
F902
F901
54
51
52
T201
T901
#2
#2
#2
#2
#2
#3
#2
#2
#2
#2
#2
#2
#1
Ver 1.1 2002.11
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.