DOWNLOAD Sony NW-S4 Service Manual ↓ Size: 2.44 MB | Pages: 29 in PDF or view online for FREE

Model
NW-S4
Pages
29
Size
2.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
nw-s4.pdf
Date

Sony NW-S4 Service Manual ▷ View online

NW-S4
11
3-5.
SUB  BOARD
7
SUB board
1
bracket retainer
4
connection conductive board
3
BL unit
2
liquid crystal display panel
6
LCD fitting plate
5
KEY flexible print board
5
MODE flexible module
NW-S4
13
13
USB
SWITCH
Q901
2
1
6
7
95
96
97
10
9
8
12
11
44 – 41, 38 – 35
32 – 25 
USB
TRANSCEIVER
END POINT FIFO/
8 BYTE SET-UP REGISTER
PROTOCOL
ENGINE
STATUS/
CONTROL
APPLICATION
INTERFACE
OSC
DPLL
19
7
16
9
18
8
17
13
14
15
25
58 69 45
71
6
48
53
59
2
1
3
5
16
10
9
81
23
22 11
66
29 – 32, 41 – 44
3
54
98
5
7
49
47
67
60
4
8
58
59
57
14
8
1
23
22
49
120
135
SERIAL
PORT
&
DE-
EMPHASIS
DIGITAL
FILTER
&
D/A
CONVERTER
HEADPHONE
AMP
DIGITAL
VOLUME
CONTROL,
BASS/
TREBLE
BOOST,
LIMITING
ANALOG
FILTER
&
ANALOG
VOLUME
CONTROL
14
10
AUDIO
OUTPUT
SWITCH
Q102, 202
MUTING
Q101, 201
MUTING
CONTROL
SWITCH
Q301(2/2)
MUTING
Q302
MUTING
CONTROL
SWITCH
Q301(1/2)
11
60
65
38
LIQUID
CRYSTAL
DISPLAY
LCD901
VOLTAGE
DETECT
IC403
VOLTAGE
DETECT
IC402
124
6
5
2
3
+1.8V
REGULATOR
IC301
B+ SWITCH
Q403
B+ SWITCH
Q405
10
15
41
62
: PLAYBACK
CN901
(1/2)
USB
CONNECTOR
X901
48MHz
D+
D+
XIN
XOUT
3
2
USB
CONTROLLER
IC901
AD0 – AD7
RESET
A0 – A7
INTR
CS
RD
WR
D903
I/O1 – I/O8
512M BIT FLASH ROM
IC602
RE
WE
WP
CE
CE
CLE
CLE
ALE
R/B
ALE
R/B
D0 – D7
ADDRESS BUS
DATA BUS
2B
2A
2G
2Y3
2Y2
2Y1
2Y0
2 TO 4 DECODER
IC604
D0 – D7
D0 – D7
A0 – A7
A0 – A7
CE
CLE
ALE
R/B
HD4
HD0
HD2
HD1
BDR0
IOSTRB
BFSX2
BCLKX2
BDR2
BDX2
INT2
INT3
BCLKR1
A0 – A7
D0 – D7
DIGITAL SIGNAL
PROCESSOR
IC601
INT1
IS
A15
R/W
RS
HD3
X1
X2/CLKIN
EEPROM
IC603
CS
WP
SI
SO
SCK
IRQ1
AN0
WKP7
P37
P32
X2
X1
OSC2
OSC1
P90
COM2
COM1
WKP5 – WKP0
CPU
IC801
IRQ0
P33
RES
RXD
D/A CONVERTER (IC302)
B+
TXD
SCK
P36
SEG9 – SEG22
SEG1 – SEG15
X601
16.9344MHz
LCD
BACK LIGHT
D803 – 805
S801 – 806
S808
V1 B+
X802
8MHz
X801
32.768kHz
OFF        HOLD
VBATT B+
Q402
VCORE
DSP (IC601)
B+
V2
DSP (IC601),
512M BIT EEPROM (IC602),
EEPROM (IC603),
USB CONTROLLER (IC901)
B+
D/A CONVERTER (IC302)
B+
V1
CPU (IC801)
B+
L301
BCLKX0
BCLKX1
HD6
BFSXO
BDXO
SDATA
LRCK
BCLK
ACLK
HD7
SDATA
SDATA
LRCK
LRCK
BCLK
SCLK
ACLK
MCLK
RST
D/A CONVERTER,
HEADPHONE AMP
IC302
HP B
HP A
i
J301
(HEADPHONE)
VBATT
B+
L401
DRY BATTERY
SIZE “AA”
IEC DESIGNATION 
R6
1PC. 1.5V
L404
L402
D405
D403
D402
THP401
CN901
(2/2)
1
4
VBUS
GND
USB
CONNECTOR
D802
HOLD
40 – 26
43 – 48
RESET SIGNAL 
GENERATOR
IC802
11
12
131 – 134, 136 – 139
99 – 104, 113, 114
 SIGNAL PATH
D–
D–
HD5
BATTERY/USB
CHANGE-OVER
SWITCH
Q401
2
3
8
7
5
OUT
EN
LBI
LBO
LX
SWITCHING
REGULATOR
IC401
42 WKP6
AVLS
CONTROL
SWITCH
Q801
S807
NORM         LIMIT
AVLS
S801
+
S802
VOL
S803
SHIFT
x
b
S804
.
MODE
S805
.
MEGA BASS
S806
+3.2V
REGULATOR
IC405
DC/DC
CONVERTER
IC404, L403
COM0
COM1
 SEG0
ı
SEG14
SECTION  4
DIAGRAMS
4-1.
BLOCK  DIAGRAM
NW-S4
14
14
3.4 Vp-p
22.7 
µ
s
3.4 Vp-p
710 ns
4.1 Vp-p
3.5 
µ
s
4.1 Vp-p
6.6 
µ
s
3.2 Vp-p
125 ns
1.8 Vp-p
30.5 
µ
s
1.2 Vp-p
59.1 ns
3.2 Vp-p
59.1 ns
3.4 Vp-p
22.7 
µ
s
3.4 Vp-p
710 ns
3 Vp-p
20.8 ns
Note on Printed Wiring Board:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
f
: internal component.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
4-2.
NOTE  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC  DIAGRAMS
• MAIN and SUB boards are multi-layer printed board.
However, the patterns of intermediate-layer have not been in-
cluded in this diagrams.
Note on Schematic Diagram:
• 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.
%
: indicates tolerance.
f
: internal component.
C
: panel designation.
A
: B+ Line.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: PLAYBACK
*
The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
• Waveforms
– MAIN Board –
1
IC901 
6
 (XIN) (When power on)
50 mV/DIV, 50 ns/DIV
2
IC601 
rk
 (BCLKX0)
2 V/DIV, 500 ns/DIV
3
IC601 
td
 (BFSX0)
1 V/DIV, 5 
µ
s/DIV
4
IC601 
ua
 (BCLKX1)
2 V/DIV, 50 ns/DIV
5
IC601 
oj
 (X2/CLKIN)
200 mV/DIV, 50 ns/DIV
6
IC801 
2
 (X1)
500 mV/DIV, 20 
µ
s/DIV
7
IC801 
5
 (OSC2) (When power on)
100 mV/DIV, 200 ns/DIV
8
IC401 
7
 (LX)
1 V/DIV, 2 
µ
s/DIV
9
IC404 
9
 (LX)
1 V/DIV, 2 
µ
s/DIV
– SUB Board –
0
IC302 
1
 (LRCK)
1 V/DIV, 5 
µ
s/DIV
qa
IC302 
3
 (SCLK)
2 V/DIV, 500 ns/DIV
qs
IC302 
5
 (MCLK)
2 V/DIV, 50 ns/DIV
3.2 Vp-p
59.1 ns
*
Lead Layouts (IC601 and IC901)
surface
Lead layout of conventional IC
CSP (chip size package)
NW-S4
15
15
D401
C-2
D402
B-2
D403
E-3
D405
B-3
D802
F-6
D901
E-4
D902
E-4
D903
F-6
IC401
B-2
IC402
A-2
IC403
A-2
IC404
B-4
IC405
E-2
IC601
F-10
IC602
B-9
IC603
G-8
IC604
E-8
IC801
B-6
IC802
F-6
IC901
E-7
Q401
B-3
Q402
E-3
Q403
B-3
Q405
F-7
Q801
C-2
Q901
E-6
CN901
USB
CONNECTOR
IC901
NOT
SUPPLIED
C421
C623
C424
C422
C427
C904
C902
C901
C813
C622
C621
C619
C615
C613
C609
C603
C614
C611
C606
C607
C610
C402
C417
C418
C406
C407
C408
C414
C410
C420
C601
C602
D403
D802
D903
IC604
IC603
(NOT SUPPLIED)
IC405
IC802
L402
L404
L403
Q405
Q402
Q901
VDR801
VDR802
VDR803
VDR804
R408
R409
R428
R430
R429
R436
R601
R602
R603
R607
R609
R610
R811
R812
R813
R814
R826
R827
R901
R902
R903
R904
R905
R906
R831
R604
R907
R908
R909
R910
R911
X901
D901
D902
L401
X601
 
 
IC601
NOT
SUPPLIED
 
 
 
 
 
 
 
 
 
 
 
THP401
 
 
 
C604
C818
C819
C416
C415
C413
C412
C411
C409
C423
C816
C903
C815
C812
C811
C804
C802
C620
C618
C608
C605
C801
D402
D405
IC401
IC404
IC402
IC403
IC801
Q403
Q401
VDR805
R410
R411
R412
R414
R415
R416
R420
R423
R424
R426
R435
R406
R404
R403
R402
R417
R418
R431
R419
R421
R612
R808
R809
R810
R815
R819
R820
R821
R822
R823
R824
R825
R830
R829
R605
R838
IC602
(NOT SUPPLIED)
X802
X801
D401
C821
R839
CN801
Q801
C404
R405
*
*
(11)
11
1-681-433-
MAIN BOARD   
(CONDUCTOR SIDE)
DRY
BATTERY
SIZE “AA”
IEC DESIGNATION
R6
1PC. 1.5V
MAIN BOARD   
(COMPONENT SIDE)
(11)
11
1-681-433-
A
SUB BOARD
CN802
1
4
E1
C2
C1
E2
B1 B2
 
 
  
 
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
4-3.
PRINTED  WIRING  BOARD  – MAIN Board –
• Semiconductor
Location
Ref. No.
Location
(Page 18)
Page of 29
Display

Click on the first or last page to see other NW-S4 service manuals if exist.