Sony NW-S4 Service Manual ▷ View online
NW-S4
9
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
Main board
Sub board
Jack flexible module,
Jack (small type) (waterproof) (J301)
Jack (small type) (waterproof) (J301)
Set
Lower case assy
Note:
Follow the disassembly procedure in the numerical order given.
3-2.
LOWER CASE ASSY
2
lock knob (battery lid)
Note: This set is a drip-proof type.
Make it sure that no gaps on the
exterior of the set or no looseness
of screws exsist after repairing and
re-assembling the set.
Check it again before shipping.
exterior of the set or no looseness
of screws exsist after repairing and
re-assembling the set.
Check it again before shipping.
1
two screws
(1.7
(1.7
×
6)
1
two screws
(1.7
(1.7
×
6)
3
lower case assy
NW-S4
10
3-3.
JACK FLEXIBLE MODULE, JACK (SMALL TYPE) (WATERPROOF) (J301)
3-4.
MAIN BOARD
6
retainer (jack)
5
screw
(1.7
(1.7
×
2.5)
3
two screws
(1.7
(1.7
×
2.5)
4
jack flexible module
7
jack (small type) (waterproof)
(J301)
(J301)
2
P cover assy
1
5
MAIN board
1
Remove the solder of battery terminal (+).
2
Remove the solder of battery terminal (–).
4
connector
(CN802)
(CN802)
3
SUB board
upper case assy
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,
BOOST,
LIMITING
ANALOG
FILTER
&
ANALOG
VOLUME
CONTROL
14
10
AUDIO
OUTPUT
SWITCH
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
BCLKX1
HD6
BFSXO
BDXO
SDATA
LRCK
BCLK
ACLK
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
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