SA-W2500, SA-W3000, SA-W3800 - Sony Audio Service Manual (repair manual)

sa-w2500, sa-w3000, sa-w3800 service manual
Model
SA-W2500 SA-W3000 SA-W3800
Pages
20
Size
800.51 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-w2500-sa-w3000-sa-w3800.pdf
Date

Read Sony SA-W2500 / SA-W3000 / SA-W3800 Service Manual online

SA-W2500/W3000/W3800
SERVICE MANUAL
SPECIFICATIONS
US Model
Canadian Model
SA-W2500/W3000/W3800
AEP Model
SA-W2500/W3800
UK Model
SA-W2500
E Model
Australian Model
SA-W2500/W3000/W3800
ACTIVE SUBWOOFER
Ver. 1.2  2009.02
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
9-887-592-03
2009B05-1
© 2009.02
photo: SA-W3800
SA-W3800
AUDIO POWER SPECIFICATIONS
For the U.S.A. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 20 – 200 Hz; rated 120 W, minimum RMS
power, with no more than 1 % total harmonic distortion from 250
milliwatts to rated output.
System
Type
Active Subwoofer, (magnetically shielded design)
Speaker unit
Woofer : 38 cm dia. (15 in.), cone type
Continuous RMS output
South American models
  180 W (6 ohms, 80 Hz, 10% THD)
Other models
  200 W (6 ohms, 80 Hz, 10% THD)
Reproduction frequency range 20 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
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
General
Power requirements
North American models : 120 V AC, 60 Hz
South American models: 120/220/240 V AC,
50/60 Hz
European models : 230 V AC, 50/60 Hz
Australian models : 240 V AC, 50 Hz
Other models: 230 – 240 V AC, 50/60 Hz
Power consumption
100 W
Dimensions
Approx. 440 
×
 495 
×
 512 mm
(17 
3
/
8
 
×
 19 
1
/
2
 
×
 20 
1
/
8
 in.) (w/h/d)
Mass
Approx. 23 kg (50 lb 12 oz)
Supplied accessories
Foot pads (4)
Audio connecting cord
(1 phono – 1 phono), 2 m (6 ft 6 
1
/
2
 in.) (1)
SA-W3000
AUDIO POWER SPECIFICATIONS
For the U.S.A. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 20 – 200 Hz; rated 100 W, minimum RMS
power, with no more than 1 % total harmonic distortion from 250
milliwatts to rated output.
System
Type
Active Subwoofer, (magnetically shielded design)
Speaker unit
Woofer : 30 cm dia. (11 
7
/
8
 in.), cone type
Continuous RMS output
South American models
  160 W (6 ohms, 80 Hz, 10% THD)
Other models
  180 W (6 ohms, 80 Hz, 10% THD)
Reproduction frequency range 20 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
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
General
Power requirements
North American models : 120 V AC, 60 Hz
South American models: 120/220/240 V AC,
50/60 Hz
Australian models : 240 V AC, 50 Hz
Korean models: 220 – 230 V AC, 50/60 Hz
Other models: 230 – 240 V AC, 50/60 Hz
Power consumption
100 W
Dimensions
Approx. 360 
×
 425 
×
 421 mm
(14 
1
/
8
 
×
 16 
3
/
4
 
×
 16 
1
/
2
 in.) (w/h/d)
Mass
Approx. 16 kg (35 lb 5 oz)
Supplied accessories
Foot pads (4)
Audio connecting cord
(1 phono – 1 phono), 2 m (6 ft 6 1/2 in.) (1)
– Continued on next page –
2
SA-W2500/W3000/W3800
SAFETY  CHECK-OUT
(US model)
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
microampers). 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)
Fig. A. Using an AC voltmeter to check AC leakage.
0.15
µ
F
To Exposed Metal
Parts on Set
1.5k
AC
voltmeter
(0.75V)
Earth Ground
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  PUB-
LISHED  BY  SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
 À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS 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 PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
SA-W2500
AUDIO POWER SPECIFICATIONS
For the U.S.A. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 60 W, minimum RMS power,
with no more than 1 % total harmonic distortion from 250 milliwatts to
rated output.
System
Type
Active Subwoofer, (magnetically shielded design)
Speaker unit
Woofer : 25 cm dia. (9 
7
/
8
 in.), cone type
Continuous RMS output
South American models
  90 W (6 ohms, 80 Hz, 10% THD)
Other models
  100 W (6 ohms, 80 Hz, 10% THD)
Reproduction frequency range 28 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
Output jacks
SPEAKER OUT: output terminals
General
Power requirements
North American models: 120 V AC, 60 Hz
South American models: 120/220/240 V AC,
50/60 Hz
European models: 230 V AC, 50/60 Hz
Australian models: 240 V AC, 50 Hz
Korean models: 220 – 230 V AC, 50/60 Hz
Taiwan models: 110 V AC, 60Hz
Other models: 230 – 240 V AC, 50/60 Hz
Power consumption
70 W
Dimensions
Approx. 290 
×
 350 
×
 391 mm
(11 
3
/
8
 
×
 13 
3
/
4
 
×
 15 
3
/
8
 in.) (w/h/d)
Mass
Approx. 10 kg (22 lb 1 oz)
Supplied accessories
Foot pads (4)
Audio connecting cord
(1 phono – 1 phono), 2 m (6 ft 6 
1
/
2
 in.) (1)
Design and specifications are subject to change without notice.
Ver. 1.1
3
SA-W2500/W3000/W3800
Specifications ............................................................................  1
1. DIAGRAMS
1-1. Printed Wiring Boards
       - INPUT CONTROL, LED And SWITCH boards - ..... 5
1-2. Schematic Diagram
       - INPUT CONTROL, LED And SWITCH boards - ..... 6
1-3. Printed Wiring Boards  - MAIN board - ...................... 7
1-4. Schematic Diagram  - MAIN board - .......................... 8
2. EXPLODED VIEWS
2-1. Cabinet Section (W2500) ............................................ 9
2-2. Cabinet Section (W3000) .......................................... 10
2-3. Cabinet Section (W3800) .......................................... 11
2-4. Amp Section (W2500) ............................................... 12
2-5. Amp Section (W3000/W3800) .................................. 13
3. ELECTRICAL PARTS LIST
.................................... 14
TABLE OF CONTENTS
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.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
 
 : LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 
°
C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 
°
C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
× 
4: New type (Star boss)
× 
4: Former type (Screw boss)
GRILLE FRAME (WITH CLOTH)
“                 ” 
Logo
NOTES ON REPLACEMENT OF GRILLE FRAME (WITH
CLOTH) AND LOUD SPEAKER (25 cm) (SA-W2500 only)
GRILLE FRAME (WITH CLOTH) of SA-W2500 has been changed
in the midway of production.
Boss’s position has been changed by above-mentioned change. And,
LOUD SPEAKER (25 cm) has been changed at the same time.
When replacing the GRILLE FRAME (WITH CLOTH) or LOUD
SPEAKER (25 cm), replace it after confirming the shape of GRILLE
FRAME (WITH CLOTH).
Discrimination
Ver. 1.2
4
SA-W2500/W3000/W3800
For Printed Wiring Boards.
Note :
• X
: parts extracted from the component side.
• x
: parts extracted from the conductor side.
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model
AUS
: Australian model
E51
: Chilean and Peruvian model
KR
: Korean model
TH
: Thai model
TW
: Taiwan model
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block.)
For Schematic Diagrams.
Note:
• 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.
C
: panel designation.
A
: B+ Line.
B
: B– Line.
• Voltages are dc with respect to  ground under no-signal conditions.
• no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production toler-
ances.
• Signal path
.
F
: AUDIO
J
: MFB (Motional Feed Back)
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 portant le numéro
spécifié.
SECTION 1
DIAGRAMS
Ver. 1.1
Page of 20
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Here you can read online and download Sony SA-W2500 / SA-W3000 / SA-W3800 Service Manual in PDF. SA-W2500 / SA-W3000 / SA-W3800 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony SA-W2500 / SA-W3000 / SA-W3800 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.