Read Sony NW-S21 / NW-S23 Service Manual online
2
NW-S21/S23
TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
5
3-2.
Case (Rear) Sub Assy ......................................................
5
3-3.
Chassis (Battery Case Lid) ..............................................
6
3-4.
MAIN Board ....................................................................
6
3-5.
DISPLAY Board ..............................................................
7
4.
TEST MODE
..............................................................
8
5.
DIAGRAMS
5-1.
Block Diagram ................................................................
9
5-2.
Printed Wiring Board – MAIN Board – ......................... 11
5-3.
Schematic Diagram – MAIN Board (1/2) – ................... 12
5-4.
Schematic Diagram – MAIN Baord (2/2) – ................... 13
5-5.
Printed Wiring Board – DISPLAY Board – ................... 14
5-6.
Schematic Diagram – DISPLAY Board – ...................... 15
6.
EXPLODED VIEW
6-1.
Case (Front) Block .......................................................... 20
6-2.
Battery Case Block .......................................................... 21
6-3.
Board Block ..................................................................... 22
7.
ELECTRICAL PARTS LIST
................................ 23
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 the 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.
Supplied accessories
Headphones (1)
Dedicated USB cable (1)
Arm band (1)
CD-ROM for the SonicStage software (1)
Operating Instructions (1)
SonicStage Operating Instructions (1)
CD-ROM for the Operating Instructions and
SonicStage Operating Instructions (1) (European
model only)
Dedicated USB cable (1)
Arm band (1)
CD-ROM for the SonicStage software (1)
Operating Instructions (1)
SonicStage Operating Instructions (1)
CD-ROM for the Operating Instructions and
SonicStage Operating Instructions (1) (European
model only)
Pour les utilisateurs en France
En cas de remplacement des écouteurs,
référez-vous au modèle d’écouteurs adaptés à
votre appareil et indiqué ci-dessous.
MDR-J011LP
référez-vous au modèle d’écouteurs adaptés à
votre appareil et indiqué ci-dessous.
MDR-J011LP
Design and specifications are subject to
change without notice.
change without notice.
Click on the first or last page to see other NW-S21 / NW-S23 service manuals if exist.