DAV-IS50, SA-WSIS50 - Sony Audio Service Manual (repair manual)

dav-is50, sa-wsis50 service manual
Model
DAV-IS50 SA-WSIS50
Pages
52
Size
3.96 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-is50-sa-wsis50.pdf
Date

Read Sony DAV-IS50 / SA-WSIS50 Service Manual online

SPECIFICATIONS
SA-WSIS50
Ver. 1.1  2009.02
9-890-508-02
2009B08-1
© 2009.02
Sony Corporation
Audio & Video Business Group
Published by Sony EMCS (Malaysia) PG Tec
 
SA-WSIS50 is the amplifi er and active subwoofer 
section in DAV-IS50.
 
In SA-WSIS50, repair in the state of having 
  connected with HCD-IS50.
This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protection 
technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision. 
Reverse engineering or disassembly is prohibited.
This system incorporates with Dolby* Digital and Dolby Pro Logic (II) adaptive matrix surround decoder and the DTS** Digital Surround System.
Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby Laboratories.
**  Manufactured under license under U.S. Patent #'s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535 & other U.S. and worldwide patents issued & pending. DTS and DTS Digital Surround are registered 
trademarks and the DTS logos and Symbol are trademark of DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved.
Amplifi er section (SA-WSIS50)
Power output and total harmonic distortion
(FTC Output Power)
US model
Front L / Front R: 
With 10 ohms loads, 
both channels driven, 
from 800 - 20,000 
Hz; rated 35 watts per 
channel minimum
 
RMS power, with no 
more than 0.7 % total 
harmonic distortion 
from 250 milli watts 
to rated output
Subwoofer: 
With 4 ohms loads, 
from 30 - 800 Hz; 
rated 75 watts per 
channel minimum
 
RMS power, with no 
more than 0.7 % total 
harmonic distortion 
from 250 milli watts 
to rated output
Power output (rated)
Except US model
Front L / Front R (rated):  35 W + 35 W (at 10 
ohms, 1 kHz, 1 % 
THD)
RMS output power (reference)
Front L / Front R*: 
50 W + 50 W
 
(at 10 ohms, 1 kHz,
10 % THD)
Center*: 50 
W
 
(at 10 ohms, 1 kHz, 
10 % THD)
Surround L / Surround R*:  50 W + 50 W
 
(at 10 ohms, 1 kHz, 
10 % THD)
Subwoofer*: 
100 W (at 4 ohms, 
70 Hz, 10 % THD) 
+ 100 W (at 4 
ohms, 500 Hz, 10 
% THD)
* Depending on the settings and the source, 
there may be no sound output.
Inputs (Analog)
TV (AUDIO IN) 
Sensitivity:
450/250 mV
Inputs (Digital)
SAT/CABLE (COAXIAL IN)
 Impedance: 
75 ohms
Subwoofer (SA-WSIS50)
Speaker system 
2 Way 2 Drivers
 Subwoofer 
speaker
system
Speaker unit 
120 mm + 160 mm 
(4 3/4 inches + 6 3/8 
inches)
Rated impedance 
4 ohms
Dimensions (approx.)  190 × 450 × 472 mm
 (7 
1/2 × 17 3/4 × 18 5/8 
inches) (w/h/d)
Mass (approx.) 
13.5 kg (29 lb 13 oz)
Power requirements 
Latin America models 
except Argentina: 
 
110 – 240 V AC, 50/60 
Hz
 
US and Canadian mod-
els: 120 V AC, 60 Hz
 
Thai models: 220 V AC, 
50/60 Hz
 
Other models: 220 – 240 
V AC, 50/60 Hz
Power consumption 
On: 130 W
 
Standby: 0.3 W (at the 
Power Saving mode)
Design and specifi cations are subject to change 
without notice.
ACTIVE SUBWOOFER
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Photo : BLACK MODEL
SERVICE MANUAL
TABLE  OF  CONTENTS
1. 
SERVICING  NOTES
  ..............................................   3
2. GENERAL
  ...................................................................   6
3. DISASSEMBLY
 
3-1. Disassembly 
Flow 
(SA-WSIS50) 
....................................  7
3-2. AMP 
Block 
......................................................................  7
3-3. AMP 
Board 
......................................................................  8
3-4. DSP 
Board 
.......................................................................  9
3-5. POWER 
Board 
.................................................................  9
3-6.  Loudspeaker (16 cm) (Sub Woofer) (SP001) ..................   9
3-7.  Loudspeaker (12 cm) (Middle) (SP002) ..........................   9
4. DIAGRAMS
4-1.  Block Diagram – DSP Section – ......................................  10
4-2.  Block Diagram – AMP Section – .....................................  11
4-3.  Block Diagram – POWER SUPPLY Section – ................  12
4-4. Printed 
Wiring 
Board 
 
– DSP Board (Component Side) – ...................................  14
4-5. Printed 
Wiring 
Board 
 
– DSP Board (Conductor Side) – .....................................  15
4-6.  Schematic Diagram – DSP Board (1/2) – ........................  16
4-7.  Schematic Diagram – DSP Board (2/2) – ........................  17
4-8. Printed 
Wiring 
Board 
 
– AMP Board (Component Side) – ..................................  18
4-9. Printed 
Wiring 
Board 
 
– AMP Board (Conductor Side) – ....................................  19
4-10.  Schematic Diagram – AMP Board (1/2) – .......................  20
4-11.  Schematic Diagram – AMP Board (2/2) – .......................  21
4-12.  Printed Wiring Boards – SPEAKER and 
CONNECTOR Board – ...................................................  22
4-13.  Schematic Diagram – SPEAKER and 
CONNECTOR Board – ...................................................  23
4-14.  Printed Wiring Board – POWER Board – .......................  24
4-15.  Schematic Diagram – POWER Board – ..........................  25
4-16.  Printed Wiring Board – S-AIR Board – ...........................  26
4-17.  Schematic Diagram – S-AIR Board – ..............................  27
5. 
EXPLODED  VIEWS
5-1.  Speaker Cabinet Assy (SA-WSIS50) ...............................  39
5-2.  AMP Section (SA-WSIS50) ............................................  40
5-3.  POWER Board Section (SA-WSIS50) ............................  41
6. 
ELECTRICAL  PARTS  LIST
  ...............................  42
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  COM-  POSANTS  
QUE  PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  
DONNÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.
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.
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.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following 
safety check 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  TEST
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 2 V AC range are suitable.  (See 
Fig. A)
Fig. A.  Using an AC voltmeter to check AC leakage.
1.5 k
7
0.15 F
AC
voltmete
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
2
SA-WSIS50
3
SA-WSIS50
SECTION  1
SERVICING  NOTES
BEGIN  IT  BEFORE  THE  REPAIR
When the SA-WSIS50 is checked, connect to HCD-IS50 (for 
DVD receiver of DAV-IS50). Be sure in advance the HCD-IS50 
is prepared.
NOTE  OF  WHEN  OUTPUT  IS  CONFIRMED (SS-IS15)
To connect with SA-WSIS50 and to use it, SS-IS15 is designed.
Therefore, when it connects with an usual amplifi er and the audio 
signal of an excessive low-frequency (800 Hz or less) is input, there 
is a possibility that the speaker breaks.
When you confi rm the output with large audio signal input, connect 
SA-WSIS50 with SS-IS15.
NOTE OF REPLACING THE EEPROM (IC1009) ON DSP 
BOARD
When you replace EEPROM (IC1009), connect HCD-IS50 and 
SA-WSIS50 and execute “Cold reset” (See page 24 of HCD-IS50 
Service Manual) and “Execute Initialize Setup Data” (See page 27 
of HCD-IS50 Service Manual).
MODEL  IDENTIFICATION
– Model number label –
Part No.
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 viscous (sticky, less prone to fl ow) 
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.
 MODEL 
PART 
No.
US and Canadian models 
3-296-031-0[]
AEP and UK models 
3-296-033-0[]
Russian model 
3-296-034-0[]
Singapore model 
3-296-035-0[]
Thai model 
3-296-036-0[]
Australian model 
3-296-038-0[]
Argentina model 
3-296-041-0[]
Latin America models except Argentina 
3-300-366-0[]
Saudi Arabia model 
3-878-309-0[]
Ver. 1.1
4
SA-WSIS50
C903
two radiation sheets
IC943
IC941
Note: When installing the POWER board, 
 
do not forget to install the radiation sheet.
POWER board
DSP board
AMP board
red
black
connector
In checking the board, connect the lead 
of red and black by resistance for 
electric shock prevention. 
800
7/2W
C903
In checking the board, make a capacitor 
discharge of C903 for electric shock 
prevention. 
800
7/2W
DSP/AMP/POWER  BOARDS  SERVICE  POSITION 
Note: Please take each board out from a set.
Page of 52
Display

Download Sony DAV-IS50 / SA-WSIS50 Service Manual (Repair Manual)

Here you can read online and download Sony DAV-IS50 / SA-WSIS50 Service Manual in PDF. DAV-IS50 / SA-WSIS50 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony DAV-IS50 / SA-WSIS50 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.