AIR-SA50R - Sony Audio Service Manual (repair manual)

Model
AIR-SA50R
Pages
30
Size
933.49 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
air-sa50r.pdf
Date

View Sony AIR-SA50R Service Manual online

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
AIR-SA50R
WIRELESS SPEAKER
9-889-559-01
2009F05-1
© 
2009.06
US Model
Ver. 1.0  2009.06
SPECIFICATIONS
•  “S-AIR” and its logo are trademarks of Sony Corporation.
•  The Bluetooth word mark and logos are owned by the 
Bluetooth SIG, Inc. and any use of such marks by Sony 
Corporation is under license. Other trademarks and trade 
names are those of their respective owners.
•  iPod is a trademark of Apple Inc., registered in the U.S. 
and other countries.
•  iPhone is a trademark of Apple Inc.
•  All other trademarks and registered trademarks are of 
their respective holders.
  In this manual, ™ and 
®
 marks are not specifi ed.
•  AIR-SA50R is the amplifi er and speaker section in ALT-SA31iR/SA32PC.
  And, there is single sales, too.
Amplifier section
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL 
HARMONIC DISTORTION:
With 8 ohms loads, both channels 
driven, from 100 – 15,000Hz; rated 6 
watts per channel minimum RMS 
power, with no more than 10% total 
harmonic distortion.
Continuous RMS power output 
(reference): 
8 + 8 watts (8 ohms at 1 kHz, 10% 
harmonic distortion)
Speaker section
Speaker system: Full range, bass-reflex 
type
Speaker units: 57 mm (2 
1
/
4
 in), cone 
type (2)
Nominal impedance: 8 ohms
General
Power requirements: 120 V AC, 60 Hz
Input: AUDIO IN jack (ø 3.5 mm stereo 
minijack)
Dimensions (w/h/d): Approx. 250 × 
123 × 129 mm (9 
7
/
8
 ×4 
7
/
8
 ×5 
1
/
8
 in)
Mass: Approx. 1.4 kg (3 lb 1.8 oz)
Supplied accessories: Wireless 
transceiver (EZW-RT10A) (1)/ 
Remote commander (RM-ANU065) (1)*/ 
R03 (size AAA) batteries (2)*
* When you purchase this product with main 
unit and sub units system package product, 
the pieces of these accessories may differ. 
Refer to the manuals supplied with the 
package product.
Design and specifications are subject 
to change without notice.
AIR-SA50R
2
1. 
SERVICING  NOTES
  .............................................   3
2. DISASSEMBLY
2-1.   Disassembly Flow ...........................................................   4
2-2.   MAIN Board Block ........................................................   4
2-3.   IF Board, MAIN Board ...................................................   5
3. 
TEST  MODE 
 ............................................................   6
4. DIAGRAMS
4-1. Block 
Diagram 
................................................................   7
4-2.  Schematic Diagram - MAIN Section (1/3) - ...................   9
4-3.  Schematic Diagram - MAIN Section (2/3) - ...................   10
4-4.  Schematic Diagram - MAIN Section (3/3) - ...................   11
4-5.  Printed Wiring Board - MAIN Section (1/2) - ................   12
4-6.  Printed Wiring Boards - MAIN Section (2/2) - ..............   13
4-7.  Printed Wiring Board - IF Board - ..................................   14
4-8.  Printed Wiring Boards - PANEL Section - .....................   15
4-9.  Schematic Diagram - IF, PANEL Section -.....................   16
5. 
EXPLODED  VIEWS
5-1. Overall 
Section 
...............................................................  22
5-2.  Front Cabinet Section .....................................................   23
5-3.  Rear Cabinet Section ......................................................   24
6. 
ELECTRICAL  PARTS  LIST
  ..............................   25
Accessories are given in the last of the electrical parts list.
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 dam-
aged by heat.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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)
1.5 k
Ω
0.15 
μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
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.
CAUTION
These servicing instructions are for use by qualifi ed service per-
sonnel only.
To reduce the risk of electric shock, do not perform any servicing 
other than that contained in the operating instructions unless you 
are qualifi ed to do so.
AIR-SA50R
3
SECTION  1
SERVICING  NOTES
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.
NOTE  OF  REPLACING  THE  IC401  ON  THE  MAIN  
BOARD
IC401 on the MAIN board cannot exchange with single. When this 
part is damaged, exchange the entire mounted board.
NOTE  OF  REPLACING  THE  TOUCH  KEY  BOARD
When the TOUCH KEY board is damaged, exchange the entire 
PANEL (FRONT) SUB ASSY.
AIR-SA50R
4
SECTION  2
DISASSEMBLY
•  This set can be disassembled in the order shown below.
2-1.  DISASSEMBLY  FLOW
Note: Follow the disassembly procedure in the numerical order given.
2-2.  MAIN  BOARD  BLOCK
Note: This illustration sees the set from rear side.
SET
2-2.  MAIN BOARD BLOCK
 (Page 
4)
2-3.  IF BOARD, MAIN BOARD
 (Page 
5)
5 screw (B2.6)
8 lead wire
 (CN704)
q; flexible flat cable
 
(11 pin) (W3) 
 (CN702)
7
qs MAIN board block
6 two speaker lead wires
 (CN302)
5 screw 
 (B2.6)
5 screw (B2.6)
9 lead wire (CN706)
qa flexible flat cable
 
(14 pin) (W2) (CN703)
2 screw (B3)
1 sheet (screw)
4
2 two screws 
 (B3)
3 three srews 
 (B2.6)
1 three sheets 
(screw)
1 sheet 
 (screw)
2 screw (B3)
2 three screws 
 (B3)

Download Sony AIR-SA50R Service Manual (Repair Manual)

Here you can view online and download Sony AIR-SA50R Service Manual in PDF. AIR-SA50R service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony AIR-SA50R 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.