Diagrams; Block Diagram - Sony NW-S4 Service Manual

4-1.

BLOCK DIAGRAM

CN901
STATUS/
(1/2)
CONTROL
2
D–
2
D–
USB PROTOCOL
USB
D+ TRANSCEIVER ENGINE
1
D+ SWITCH
3
Q901
XIN
6
USB
END POINT FIFO/
CONNECTOR
OSC DPLL 8 BYTE SET-UP REGISTER
XOUT
7
AD0 – AD7
X901
USB
48MHz CONTROLLER
IC901
44 – 41, 38 – 35
95 99 – 104, 113, 114 131 – 134, 136 – 139
D0 – D7 A0 – A7
97 96
X601
16.9344MHz
SEG1 – SEG15
SEG0
ı
LIQUID SEG14
CRYSTAL
DISPLAY
COM0 23
LCD901
COM1 22
S801
+
D803 – 805
49
VOL
S802
LCD
–
BACK LIGHT
S803
SHIFT
S801 – 806
S804
b x
S805
MODE
.
S806
6
MEGA BASS
X802
.
8MHz
V1 B+
5
S808
HOLD
2
OFF HOLD
X801
32.768kHz
3
AVLS
CONTROL
42 WKP6
SWITCH
Q801
S807
AVLS
NORM LIMIT
SECTION 4

DIAGRAMS

WR
10
RD
9
APPLICATION CS
8
INTERFACE
INTR
12
RESET
11
D903
32 – 25
DATA BUS
ADDRESS BUS
2Y3 9
13 2B
2Y2 10
2Y1 11
2A
14
2Y0 12
15
2 TO 4 DECODER
IC604
66 22 11 23 81 25
DIGITAL SIGNAL
PROCESSOR
IC601
38 65 60 67 47 49 54
EEPROM
IC603
60 11
3
RXD 58 7 SI
TXD 59 4 SO
WP
57 8
SCK SCK
14
P36
COM1
8
RES
COM2
IRQ1 1
D/A CONVERTER (IC302)
P90
REGULATOR
B+
CPU
IC801
OSC1
P32 10
OSC2
X1
P37 15
X2 Q402
WKP7 41
62
AN0 VBATT B+
512M BIT FLASH ROM
IC602
I/O1 – I/O8
29 – 32, 41 – 44 19 8 18 9 16 17 7
SDATA SDATA
2
LRCK LRCK
1
BCLK SCLK
3
ACLK MCLK
5
120 58 69 45
SDATA
16 RST
59
BDXO
LRCK
53
BFSXO
BCLK
BCLKX0 48
ACLK
BCLKX1 71
HD6 135
6
HD7
98 124
5
D802
RESET SIGNAL
GENERATOR
IC802
+1.8V
IC301
V1
CPU (IC801)
B+
L301
D/A CONVERTER (IC302)
B+
V2
DSP (IC601),
512M BIT EEPROM (IC602),
B+ SWITCH
EEPROM (IC603),
Q403
USB CONTROLLER (IC901)
B+
VCORE
B+ SWITCH
DSP (IC601)
Q405
B+
13 13
DIGITAL
ANALOG
DIGITAL
SERIAL VOLUME
FILTER
FILTER
PORT CONTROL,
&
HEADPHONE
&
& BASS/
ANALOG
AMP
D/A
DE- TREBLE
VOLUME
CONVERTER
EMPHASIS BOOST,
CONTROL
LIMITING
D/A CONVERTER,
HEADPHONE AMP
IC302
VOLTAGE
DETECT
IC403
D405 VOLTAGE
DETECT
IC402
D402
BATTERY/USB
L402
CHANGE-OVER
8 OUT
SWITCH
Q401
5 EN
3
L404 D403
DC/DC +3.2V
CONVERTER REGULATOR
IC404, L403 IC405
NW-S4
• SIGNAL PATH
: PLAYBACK
J301
i
(HEADPHONE)
HP B
14 AUDIO
OUTPUT
SWITCH
HP A
10 Q102, 202
MUTING MUTING
Q302 Q101, 201
MUTING MUTING
CONTROL CONTROL
SWITCH SWITCH
Q301(1/2) Q301(2/2)
VBATT
B+
L401
LX 7
DRY BATTERY
SWITCHING
SIZE "AA"
REGULATOR
IEC DESIGNATION
IC401
R6
2
1PC. 1.5V
CN901
(2/2)
THP401
1
VBUS
GND
4
USB
CONNECTOR