XDR-S20 - Sony Audio Service Manual (repair manual)

xdr-s20 service manual
Model
XDR-S20
Pages
26
Size
1.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
xdr-s20.pdf
Date

Read Sony XDR-S20 Service Manual online

SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by Sony Engineering Corporation
AEP Model
UK Model
DAB/FM DIGITAL RADIO
9-879-921-01
2005J0478-1
© 2005.10
Ver. 1.0  2005.10
SPECIFICATIONS
XDR-S20
Time display
UK
12-hour system
Other countries/regions
24-hour system
Frequency range
Band
Frequency
Channel step
DAB (Band-III)
174.928 - 239.200 MHz
FM
87.5 - 108 MHz
0.05 MHz
DAB (Band-
III
) frequency table
(MHz)
No.
Channel
Frequency
No.
Channel
Frequency
1
5A
174.928
20
9D
208.064
2
5B
176.640
21
10A
209.936
3
5C
178.352
22
10B
211.648
4
5D
180.064
23
10C
213.360
5
6A
181.936
24
10D
215.072
6
6B
183.648
25
11A
216.928
7
6C
185.360
26
11B
218.640
8
6D
187.072
27
11C
220.352
9
7A
188.928
28
11D
222.064
10
7B
190.640
29
12A
223.936
11
7C
192.352
30
12B
225.648
12
7D
194.064
31
12C
227.360
13
8A
195.936
32
12D
229.072
14
8B
197.648
33
13A
230.784
15
8C
199.360
34
13B
232.496
16
8D
201.072
35
13C
234.208
17
9A
202.928
36
13D
235.776
18
9B
204.640
37
13E
237.488
19
9C
206.352
38
13F
239.200
Speaker:
Approx. 9.2 cm (3.6 in) dia. 8 
Power output:
0.8 W (at 10 % harmonic distortion)
Output:
i
 (headphone) jack (ø 3.5 mm, stereo mini jack)
Power requirements:
230 V AC, 50Hz
9 V DC, six LR14 (size C) alkaline batteries
Dimensions:
Approx. 281 
×
 161 
×
 76.5 mm (w/h/d)
(Approx. 11
 1⁄8
 
×
 6
 3⁄8
 
×
 3
 1⁄8
 inches) incl. projecting parts and controls
Mass:
Approx. 1,750 g (3 lb 13.8 oz ) incl. batteries
Supplied accessories:
AC power cord (1)
Design and specifications are subject to change without notice.
2
XDR-S20
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.
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.
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 viscous (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.
TABLE OF CONTENTS
1.
GENERAL
...................................................................
3
2.
DISASSEMBLY
2-1.
Cabinet (Front) Assy .......................................................
4
2-2.
Chassis Section ................................................................
5
2-3.
KEY Board ......................................................................
5
2-4.
Module Assy (TU1) .........................................................
6
2-5.
MAIN Board, MICRO COMPUTER Board ...................
6
3.
ELECTRICAL ADJUSTMENTS
..........................
7
4.
DIAGRAMS
4-1.
Block Diagram ................................................................
9
4-2.
Printed Wiring Board  – MAIN Section – ....................... 10
4-3.
Printed Wiring Boards  – POWER Section – .................. 11
4-4.
Schematic Diagram  – MAIN Section – .......................... 12
4-5.
Printed Wiring Boards
– MICRO COMPUTER Section – .................................. 13
4-6.
Schematic Diagram
– MICRO COMPUTER Section – .................................. 14
5.
EXPLODED VIEWS
5-1.
Front Cabinet Section ...................................................... 19
5-2.
Rear Cabinet Section ....................................................... 20
5-3.
Chassis Section ................................................................ 21
6.
ELECTRICAL PARTS LIST
.................................. 22
NOTE FOR REPLACEMENT OF THE IC503
There are two types of IC’s used for IC503 on the MICRO
COMPUTER board.
The service part is the type 2 model of IC503, MB90486BPF-G-
615E.
Check the model number printed on the IC when replacing IC503.
When replacing the type 1 by the type 2 of IC503, also replace both
C538 and L504 at the same time.
IC503
C538
L504
TYPE 1
MB90F488BPF-GE1
0.1 
µ
F
0.1 
µ
H
TYPE 2
MB90486BPF-G-165E1
0.01 
µ
F
Refer to the electrical part list for part number information.
3
XDR-S20
SECTION  1
GENERAL
This section is extracted
from instruction manual.
• LOCATION OF CONTROLS
ENTER/SC
FAVOURITE
DISPLAY
AUTO TUNE
DAB/FM
SLEEP
OPERATE
T UN
E
MO
DE
VOL
UM
E
CLOCK
LIGHT
CONTRAST
D A B   B E T A   D I G I T A L   O N E
B E T A   7
E U R O P E A N   E Q U I T I E S   W E
OPERATE
Headphone
jack
VOLUME
LIGHT
AUTO TUNE
DAB/FM
FAVOURITE
SLEEP
CLOCK
CONTRAST
ENTER/SC
DISPLAY
TUNE MODE
U/u 
dial
4
XDR-S20
SECTION 2
DISASSEMBLY
Note:
Follow the disassembly procedure in the numerical order given.
2
 two screws
     ((+) BV tapping (B2.6))
3
 two screws
     ((+) BV tapping (B2.6))
4
 two screws
     ((+) BV tapping (B2.6)) 
5
 CABINET (FRONT) assy
1
 battery lid
2-1.
CABINET (FRONT) ASSY 
(Page 4)
2-2.
CHASSIS SECTION
(Page 5)
SET
2-3.
KEY BOARD
(Page 5)
2-4.
MODULE ASSY (TU1)
(Page 6)
2-5.
MAIN BOARD,
MICRO COMPUTER BOARD
(Page 6)
2-1. CABINET (FRONT) ASSY
Page of 26
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Download Sony XDR-S20 Service Manual (Repair Manual)

Here you can read online and download Sony XDR-S20 Service Manual in PDF. XDR-S20 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony XDR-S20 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.