Read Sony SRS-NWGU50 Service Manual online
SRS-NWGU50
SRS-NWGU50
11
11
4-5. SCHEMATIC DIAGRAM - MAIN Board (2/2) -
• See page 7 for Waveforms. • See page 14 for IC Block Diagrams. • See page 16 for IC Pin Function Description.
BOARD
LED
B
CN500
BOARD
VOL
C
CN600
BOARD
MAIN
1
(1/2)
BOARD
MAIN
3
(1/2)
BOARD
MAIN
2
(1/2)
IC B/D
IC B/D
IC B/D
BOARD
MAIN
4
(1/2)
4
0
0
3.2
3.2
3.2
3.2
3.3
3.3
3.3
3.3
3.3
0
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.2
3.2
3.2
1.8
1.6
3.3
3.3
0
0
0
0
0
0
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
0
0
0
0
0
0
0
8.9
3.3
8.1
3.3
0
13.1
5.1
0.8
3.6
4.9
1.3
5.1
3.3
1
2
IN
SW
3
GND
4
ADJ
5
SS
5
4
VOUT
VIN
1
2
ON/OFF
GND
3
NP
4
3
CD
OUT
1
2
GND
VDD
SWITCHING
REGULATOR
+3.3V
REGULATOR
IC101
IC105
IC302
FB114
0
D100
EC10DA40
80
LED_LINE
79
LED_LINE
78
LED_LINE
77
LED_LINE
76
NO USE
75
NO USE
74
KEY_POWER
73
NO USE
72
LED_BASS
71
LED_BASS
70
LED_BASS
69
LED_BASS
68
LED_MUTING
67
LED_MUTING
66
LED_MUTING
65
1
NO USE
2
NO USE
3
NO USE
4
SIRCS_IN
5
NO USE
6
NO USE
7
NO USE
8
BYTE
9
CNVSS
10
NO USE
11
NO USE
12
RESET
13
XOUT
14
VSS
15
XIN
LED_MUTING
VCC1
16
64
VSS
NWI
17
63
NO USE
DAMP_RESET
18
62
VCC2
DAMP_PDN
19
61
NO USE
AC_CUT
20
60
NO USE
DAMP_MUTE
21
59
NO USE
DAMP_SCL
22
58
NO USE
DAMP_VALID
23
57
DC_DET
DAMP_SDA
24
56
NO USE
NO USE
25
55
NO USE
NO USE
26
54
NO USE
NO USE
27
53
NO USE
NO USE
28
52
NO USE
NO USE
29
51
PWR CTL
NO USE
30
R5F3640DDA04FAR-128
IC300
SYSTEM
CONTROLLER
IC300
100
98
RTS1
CLK1
RXD1
TXD1
99
31
32
33
97
34
NO USE
AVCC
VREF
KEY_INPUT
95
WALKMAN_DET
WM-PORT_RX
WM-PORT_TX
TXD
96
35
36
94
37
NO USE
NO USE
NO USE
NO USE 38
39
40
41
NO USE
NO USE
NO USE 42
43
44
CE
NO USE 45
46
AVSS
KEY_VOL+
KEY_VOL-
93
91
92
90
NO USE
LED_POWER
LED_POWER
LED_POWER
88
89
87
LED_POWER
NO USE
NO USE
86
85
NO USE
ASEL1
I2C_DATA 47
84 ASEL0
I2C_CLK 48
83 NO USE
NO USE 49
82 NO USE
NO USE 50
81 NO USE
C304
0.1
C300
0.1
C112
0.01
C109
0.01
C127
0.1
C128
470
16V
R117
4.7
4
5
LINE_LED
3
POWER_LED
2
FUNCTION_SW
1
POWER_SW
GND
CN300
5P
4
5
R_OUT
3
VOL+_SW
2
VOL-_SW
1
R_VCC
MUTE_LED
6
BASS_LED
7
GND
CN301
7P
D1
D2
A1
A2
A4
(2/2)
MAIN BOARD
FB113
0
R141
2.2k
IC101
SI-8008TM-TLS
IC105
TK11133CSCL-G
R142
47uH
L103
2.2k
FB116
FB115
DC IN 13V
–
+
J101
C306
0.1
C144
0.01
A3
R140
820
D101
M1FM3
C135
0.01
C3
C1
C2
B1
B2
C131
100
16V
R143
10k
R310
1k
R365
0
R311
10k
R305
100
R316
1k
R317
10k
R177
100
Q101
2SC3052EF-T1-LEF
DC DETECT
R300
100
R301 1k
R312
4.7k
R302 1k
C323
1000p
C312
10
C302
0.1
C301
0.1
C305
1000p
R308
1k
R309
10k
R306
1k
R307
10k
R303 1k
R304 1k
C303
10
C321
10
C322
10
C308
0.1
C137
470
16V
C140
100
16V
C146
100
16V
R313
4.7k
R314
4.7k
R315
4.7k
R176
100k
R320
10k
C309
0.1
C307
10
R324
0
X300
5MHz
R359
10k
R344
0
R364
0
R329
10k
R330
100
RESET
R358
10k
C317
0.22
IC302
PST3660UL
R332
4.7k
R334
4.7k
R341
47k
R360
4.7k
R336
10k
C310
0.1
C311
10
C211
0.1
R318
4.7k
R319
4.7k
R321
4.7k
R322
4.7k
R323
4.7k
R325
4.7k
R326
4.7k
R328
4.7k
R352
10k
R346
10k
R331
100
PDN
R333
100
MUTE
R335
100
SCL
R339
100
VALID
R337
100
SDA
RXD
PWR CTL
R369 0
R366 0
R367 0
R368 0
R349
10k
R354
10k
C316
0.1
C314
0.01
RESET
GENERATOR
SIGNAL
4
B
6
9
11
D
15
H
10
3
5
12
C
F
1
E
8
G
14
A
2
13
7
(Page 10)
(Page 13)
(Page 13)
(Page 10)
(Page 10)
(Page 10)
Click on the first or last page to see other SRS-NWGU50 service manuals if exist.